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Low-Carbon Steel Round Tubes
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers.
Heat treatable tubes can be surface hardened with heat treating.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Tubes
- Yield Strength: See table
- Hardness: See table
- Heat Treatable: See table
- Specifcations Met: See table
| OD | OD Tolerance | ID | Yield Strength, psi  | Heat Treatable | Heat Treatment | Hardness | Specifications Met | 1 ft. Lg. | 2 ft. Lg. | 3 ft. Lg. | 4 ft. Lg. | 6 ft. Lg. | |
0.035" Wall Thick. (Standard Tolerance) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/8" | -0.003" to 0.003" | 0.305" | 26,600 | Yes | __ | Rockwell B55 (Soft) | ASTM A513 Type 2 | 0000000 | |||||
| 1/2" | -0.003" to 0.003" | 0.43" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
0.049" Wall Thick. (Standard Tolerance) | |||||||||||||
| 1/2" | -0.003" to 0.003" | 0.402" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 5/8" | -0.003" to 0.003" | 0.527" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 3/4" | -0.003" to 0.003" | 0.652" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1" | -0.004" to 0.004" | 0.902" | 45,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 1 1/2" | -0.005" to 0.005" | 1.402" | 45,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 2" | -0.005" to 0.005" | 1.902" | 45,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
0.065" Wall Thick. (Standard Tolerance) | |||||||||||||
| 1/2" | -0.004" to 0.004" | 0.37" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 5/8" | -0.003" to 0.003" | 0.495" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 3/4" | -0.004" to 0.004" | 0.62" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 7/8" | -0.004" to 0.004" | 0.745" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1" | -0.004" to 0.004" | 0.87" | 40,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 1 1/4" | -0.004" to 0.004" | 1.12" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1 1/2" | -0.005" to 0.005" | 1.37" | 45,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 2" | -0.005" to 0.005" | 1.87" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 3" | -0.008" to 0.008" | 2.87" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 4" | -0.01" to 0.01" | 3.87" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
0.083" Wall Thick. (Standard Tolerance) | |||||||||||||
| 5/8" | -0.004" to 0.004" | 0.459" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 3/4" | -0.004" to 0.004" | 0.584" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 7/8" | -0.004" to 0.004" | 0.709" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1" | -0.004" to 0.004" | 0.834" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
0.095" Wall Thick. (Standard Tolerance) | |||||||||||||
| 3/4" | -0.004" to 0.004" | 0.56" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1" | -0.004" to 0.004" | 0.81" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1 3/4" | -0.004" to 0.004" | 1.56" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
0.12" Wall Thick. (Oversized Tolerance) | |||||||||||||
| 1/2" | 0" to 0.005" | 0.26" | 75,000 | No | __ | Rockwell B85 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
0.12" Wall Thick. (Standard Tolerance) | |||||||||||||
| 3/4" | -0.004" to 0.004" | 0.51" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 7/8" | -0.004" to 0.004" | 0.635" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1" | -0.004" to 0.004" | 0.76" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 1 1/8" | -0.004" to 0.004" | 0.885" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1 1/4" | -0.004" to 0.004" | 1.01" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 1 1/2" | -0.005" to 0.005" | 1.26" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 1 3/4" | -0.004" to 0.004" | 1.51" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 2" | -0.004" to 0.004" | 1.76" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 2 1/4" | -0.004" to 0.004" | 2.01" | 30,000 | No | __ | Rockwell B50 (Soft) | ASTM A513 | 0000000 | |||||
| 3 1/2" | -0.009" to 0.009" | 3.26" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 4" | -0.01" to 0.01" | 3.76" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
| 4 1/2" | -0.02" to 0.02" | 4.26" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 00000000 | |||||
0.134" Wall Thick. (Standard Tolerance) | |||||||||||||
| 1 5/8" | -0.004" to 0.004" | 1.345" | 38,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 | 0000000 | |||||
0.188" Wall Thick. (Oversized Tolerance) | |||||||||||||
| 3/4" | 0" to 0.005" | 3/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1" | 0" to 0.005" | 5/8" | 45,000 | No | __ | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 1/8" | 0" to 0.005" | 3/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 1/4" | 0" to 0.005" | 7/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 3/8" | 0" to 0.005" | 1" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 1/2" | 0" to 0.005" | 1 1/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 5/8" | 0" to 0.005" | 1 1/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 3/4" | 0" to 0.006" | 1 3/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2" | 0" to 0.006" | 1 5/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2 1/2" | 0" to 0.008" | 2 1/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 3" | 0" to 0.009" | 2 5/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 3 1/8" | 0" to 0.009" | 2 3/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
1/4" Wall Thick. (Oversized Tolerance) | |||||||||||||
| 1" | 0" to 0.005" | 1/2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 1/8" | 0" to 0.005" | 5/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 1/4" | 0" to 0.005" | 3/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 3/8" | 0" to 0.005" | 7/8" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 1/2" | 0" to 0.005" | 1" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 3/4" | 0" to 0.006" | 1 1/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2" | 0" to 0.006" | 1 1/2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2 1/2" | 0" to 0.008" | 2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 3" | 0" to 0.009" | 2 1/2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 3 1/2" | 0" to 0.01" | 3" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 4" | 0" to 0.011" | 3 1/2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
3/8" Wall Thick. (Oversized Tolerance) | |||||||||||||
| 1 1/2" | 0" to 0.005" | 3/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 1 3/4" | 0" to 0.006" | 1" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2" | 0" to 0.006" | 1 1/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2 1/4" | 0" to 0.007" | 1 1/2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2 1/2" | 0" to 0.008" | 1 3/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
1/2" Wall Thick. (Oversized Tolerance) | |||||||||||||
| 1 1/2" | 0" to 0.005" | 1/2" | 65,000 | No | __ | Rockwell B86 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2" | 0" to 0.005" | 1" | 75,000 | No | __ | Rockwell B85 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 2 3/4" | 0" to 0.008" | 1 3/4" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 3" | 0" to 0.009" | 2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 3 1/2" | 0" to 0.01" | 2 1/2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 4" | 0" to 0.011" | 3" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
| 5 1/2" | 0" to 0.015" | 4 1/2" | 45,000 | No | Stress Relieved | Rockwell B60 (Medium) | ASTM A513 Type 5 | 0000000 | |||||
Metric Tubes
- Yield Strength: 34,000 psi
- Hardness: Brinell 100 (Soft)
- Heat Treatable: No
| OD, mm | OD Tolerance, mm | ID, mm | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
1 mm Wall Thick. (Standard Tolerance) | ||||||
|---|---|---|---|---|---|---|
| 12 | -0.08 to 0.08 | 10 | 0000000 | |||
2 mm Wall Thick. (Standard Tolerance) | ||||||
| 12 | -0.08 to 0.08 | 8 | 00000000 | |||
| 20 | -0.08 to 0.08 | 16 | 0000000 | |||
3 mm Wall Thick. (Standard Tolerance) | ||||||
| 20 | -0.08 to 0.08 | 14 | 00000000 | |||
| 25 | -0.08 to 0.08 | 19 | 0000000 | |||
4 mm Wall Thick. (Standard Tolerance) | ||||||
| 25 | -0.08 to 0.08 | 17 | 00000000 | |||
| 30 | -0.08 to 0.08 | 22 | 0000000 | |||
Low-Carbon Steel Rectangular Tubes
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. This material can be surface hardened with heat treating.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Tubes
- Yield Strength: See table
- Hardness: Not Rated
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met: See table
Outside | Inside | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Ht. Tolerance | Wd. | Wd. Tolerance | Ht. | Wd. | Yield Strength, psi | Specifications Met | Straightness Tolerance | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
0.049" Wall Thick. (-0.005" to 0.005" Tolerance) | ||||||||||||
| 1/2" | -0.004" to 0.004" | 1/2" | -0.004" to 0.004" | 0.402" | 0.402" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 5/8" | -0.004" to 0.004" | 5/8" | -0.004" to 0.004" | 0.527" | 0.527" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 3/4" | -0.005" to 0.005" | 3/4" | -0.005" to 0.005" | 0.652" | 0.652" | Not Rated | ASTM A513 | __ | 0000000 | |||
0.065" Wall Thick. (-0.007" to 0.007" Tolerance) | ||||||||||||
| 1/2" | -0.03" to 0.03" | 1/2" | -0.03" to 0.03" | 0.37" | 0.37" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 1/2" | -0.005" to 0.005" | 1" | -0.005" to 0.005" | 0.37" | 0.87" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 5/8" | -0.004" to 0.004" | 5/8" | -0.004" to 0.004" | 0.495" | 0.495" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 3/4" | -0.03" to 0.03" | 3/4" | -0.03" to 0.03" | 0.62" | 0.62" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 1" | -0.03" to 0.03" | 1" | -0.03" to 0.03" | 0.87" | 0.87" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 1" | -0.01" to 0.01" | 3" | -0.01" to 0.01" | 0.87" | 2.87" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1" | -0.008" to 0.008" | 2" | -0.008" to 0.008" | 0.87" | 1.87" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1" | -0.006" to 0.006" | 1 1/2" | -0.006" to 0.006" | 0.87" | 1.37" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1 1/4" | -0.03" to 0.03" | 1 1/4" | -0.03" to 0.03" | 1.12" | 1.12" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 2" | -0.008" to 0.008" | 2" | -0.008" to 0.008" | 1.87" | 1.87" | Not Rated | ASTM A513 | __ | 0000000 | |||
0.083" Wall Thick. (-0.008" to 0.008" Tolerance) | ||||||||||||
| 3/4" | -0.03" to 0.03" | 3/4" | -0.03" to 0.03" | 0.584" | 0.584" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 3/4" | -0.006" to 0.006" | 1 1/2" | -0.006" to 0.006" | 0.584" | 1.334" | Not Rated | ASTM A513 | __ | 000000 | |||
| 1" | -0.03" to 0.03" | 1" | -0.03" to 0.03" | 0.834" | 0.834" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 1" | -0.01" to 0.01" | 1 1/2" | -0.01" to 0.01" | 0.834" | 1.334" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1" | -0.01" to 0.01" | 3" | -0.01" to 0.01" | 0.834" | 2.834" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1" | -0.008" to 0.008" | 2" | -0.008" to 0.008" | 0.834" | 1.834" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1 1/4" | -0.006" to 0.006" | 1 1/4" | -0.006" to 0.006" | 1.084" | 1.084" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1 1/2" | -0.03" to 0.03" | 1 1/2" | -0.03" to 0.03" | 1.334" | 1.334" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 2" | -0.03" to 0.03" | 2" | -0.03" to 0.03" | 1.834" | 1.834" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 2" | -0.02" to 0.02" | 4" | -0.02" to 0.02" | 1.834" | 3.834" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 2 1/2" | -0.01" to 0.01" | 2 1/2" | -0.01" to 0.01" | 2.334" | 2.334" | Not Rated | ASTM A513 | __ | 0000000 | |||
0.12" Wall Thick. (-0.012" to 0.012" Tolerance) | ||||||||||||
| 3/4" | -0.005" to 0.005" | 3/4" | -0.005" to 0.005" | 0.51" | 0.51" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1" | -0.03" to 0.03" | 1" | -0.03" to 0.03" | 0.76" | 0.76" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 1" | -0.008" to 0.008" | 2" | -0.008" to 0.008" | 0.76" | 1.76" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1" | -0.006" to 0.006" | 1 1/2" | -0.006" to 0.006" | 0.76" | 1.26" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1 1/4" | -0.006" to 0.006" | 1 1/4" | -0.006" to 0.006" | 1.01" | 1.01" | Not Rated | ASTM A513 | __ | 0000000 | |||
| 1 1/2" | -0.03" to 0.03" | 1 1/2" | -0.03" to 0.03" | 1.26" | 1.26" | 32,000 | ASTM A513 | 1/16" per 3 ft. | 00000000 | |||
| 2" | -0.03" to 0.03" | 2" | -0.03" to 0.03" | 1.76" | 1.76" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
1/8" Wall Thick. (-0.013" to 0.013" Tolerance) | ||||||||||||
| 1" | -0.025" to 0.025" | 3" | -0.025" to 0.025" | 3/4" | 2 3/4" | 46,000 | ASTM A500 | __ | 0000000 | |||
| 1 1/2" | -0.025" to 0.025" | 3" | -0.025" to 0.025" | 1 1/4" | 2 3/4" | 46,000 | ASTM A500 | __ | 0000000 | |||
| 2 1/2" | -0.03" to 0.03" | 2 1/2" | -0.03" to 0.03" | 2 1/4" | 2 1/4" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 3" | -0.03" to 0.03" | 3" | -0.03" to 0.03" | 2 3/4" | 2 3/4" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 3 1/2" | -0.03" to 0.03" | 3 1/2" | -0.03" to 0.03" | 3 1/4" | 3 1/4" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 4" | -0.03" to 0.03" | 4" | -0.03" to 0.03" | 3 3/4" | 3 3/4" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
0.188" Wall Thick. (-0.019" to 0.019" Tolerance) | ||||||||||||
| 1 1/4" | -0.02" to 0.02" | 1 1/4" | -0.02" to 0.02" | 0.874" | 0.874" | 46,000 | ASTM A500 | __ | 0000000 | |||
| 1 1/2" | -0.025" to 0.025" | 3" | -0.025" to 0.025" | 1.124" | 2.624" | 46,000 | ASTM A500 | __ | 0000000 | |||
| 2" | -0.03" to 0.03" | 2" | -0.03" to 0.03" | 1.624" | 1.624" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 2 1/2" | -0.02" to 0.02" | 2 1/2" | -0.02" to 0.02" | 2.124" | 2.124" | 46,000 | ASTM A500 | __ | 0000000 | |||
| 3" | -0.03" to 0.03" | 3" | -0.03" to 0.03" | 2.624" | 2.624" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 4" | -0.03" to 0.03" | 4" | -0.03" to 0.03" | 3.624" | 3.624" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
1/4" Wall Thick. (-0.025" to 0.025" Tolerance) | ||||||||||||
| 1 1/2" | -0.025" to 0.025" | 3" | -0.025" to 0.025" | 1" | 2 1/2" | 46,000 | ASTM A500 | __ | 0000000 | |||
| 2" | -0.03" to 0.03" | 2" | -0.03" to 0.03" | 1 1/2" | 1 1/2" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 2 1/2" | -0.02" to 0.02" | 2 1/2" | -0.02" to 0.02" | 2" | 2" | 46,000 | ASTM A500 | __ | 0000000 | |||
| 3" | -0.03" to 0.03" | 3" | -0.03" to 0.03" | 2 1/2" | 2 1/2" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 4" | -0.03" to 0.03" | 4" | -0.03" to 0.03" | 3 1/2" | 3 1/2" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
| 6" | -0.06" to 0.06" | 6" | -0.06" to 0.06" | 5 1/2" | 5 1/2" | 46,000 | ASTM A500 | 1/16" per 3 ft. | 00000000 | |||
Metric Tubes
- Yield Strength: 34,000 psi
- Hardness: Rockwell B65 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
Outside, mm | Inside, mm | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Ht. | Ht. Tolerance | Wd. | Wd. Tolerance | Ht. | Wd. | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
1 mm Wall Thick. (-0.15 to 0.15 mm Tolerance) | |||||||||
| 12 | -0.2 to 0.2 | 12 | -0.2 to 0.2 | 10 | 10 | 0000000 | |||
2 mm Wall Thick. (-0.1 to 0.1 mm Tolerance) | |||||||||
| 25 | -0.3 to 0.3 | 50 | -0.3 to 0.3 | 21 | 46 | 0000000 | |||
| 25 | -0.25 to 0.25 | 25 | -0.25 to 0.25 | 21 | 21 | 0000000 | |||
| 40 | -0.3 to 0.3 | 40 | -0.3 to 0.3 | 36 | 36 | 0000000 | |||
| 55 | -0.35 to 0.35 | 55 | -0.35 to 0.35 | 51 | 51 | 0000000 | |||
3 mm Wall Thick. (-0.1 to 0.1 mm Tolerance) | |||||||||
| 100 | -0.65 to 0.65 | 100 | -0.65 to 0.65 | 94 | 94 | 0000000 | |||
Easy-to-Weld 4130 Alloy Steel Round Tubes
- Yield Strength: See table
- Hardness: See table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: See table
- Specifications Met: See table
4130 alloy steel has a low carbon content that provides good weldability. It's often used for gears, fasteners, and structural applications. These tubes meet military specifications and SAE dimensional standards.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| OD | OD Tolerance | ID | Yield Strength | Hardness | Maximum Hardness After Heat Treatment | Specifications Met | Straightness Tolerance | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
0.028" Wall Thick. (-0.004" to 0.004" Tolerance) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4" | -0.005" to 0.005" | 0.194" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/8" | -0.005" to 0.005" | 0.319" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.444" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/8" | -0.005" to 0.005" | 0.569" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.694" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.944" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.035" Wall Thick. (-0.005" to 0.005" Tolerance) | |||||||||||
| 3/16" | -0.005" to 0.005" | 0.118" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/4" | -0.005" to 0.005" | 0.18" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/16" | -0.005" to 0.005" | 0.243" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/8" | -0.005" to 0.005" | 0.305" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.43" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/8" | -0.005" to 0.005" | 0.555" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.68" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/8" | -0.005" to 0.005" | 0.805" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.93" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 1.055" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 1.18" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/8" | -0.005" to 0.005" | 1.305" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.013" to 0.013" | 1.43" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.049" Wall Thick. (-0.007" to 0.007" Tolerance) | |||||||||||
| 1/4" | -0.005" to 0.005" | 0.152" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/16" | -0.005" to 0.005" | 0.215" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/8" | -0.005" to 0.005" | 0.277" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/16" | -0.005" to 0.005" | 0.34" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.402" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/8" | -0.005" to 0.005" | 0.527" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.652" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/8" | -0.005" to 0.005" | 0.777" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.902" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 1.027" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 1.152" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/8" | -0.005" to 0.005" | 1.277" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.005" to 0.005" | 1.402" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/4" | -0.019" to 0.019" | 1.652" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2" | -0.020" to 0.020" | 1.902" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.058" Wall Thick. (-0.009" to 0.009" Tolerance) | |||||||||||
| 3/8" | -0.005" to 0.005" | 0.259" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/16" | -0.005" to 0.005" | 0.322" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.384" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/8" | -0.005" to 0.005" | 0.509" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.634" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/8" | -0.005" to 0.005" | 0.759" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.884" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 1.009" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 1.134" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/8" | -0.005" to 0.005" | 1.259" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.005" to 0.005" | 1.384" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/4" | -0.010" to 0.010" | 1.634" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.065" Wall Thick. (-0.01" to 0.01" Tolerance) | |||||||||||
| 1/4" | -0.005" to 0.005" | 0.12" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/16" | -0.005" to 0.005" | 0.183" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/8" | -0.005" to 0.005" | 0.245" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/16" | -0.005" to 0.005" | 0.308" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.37" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 9/16" | -0.005" to 0.005" | 0.433" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/8" | -0.005" to 0.005" | 0.495" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.62" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/8" | -0.005" to 0.005" | 0.745" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.87" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 0.995" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 1.12" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/8" | -0.005" to 0.005" | 1.245" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.005" to 0.005" | 1.37" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 5/8" | -0.010" to 0.010" | 1.495" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/4" | -0.010" to 0.010" | 1.62" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2" | -0.010" to 0.010" | 1.87" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.083" Wall Thick. (-0.012" to 0.012" Tolerance) | |||||||||||
| 3/8" | -0.005" to 0.005" | 0.209" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/16" | -0.005" to 0.005" | 0.272" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.334" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 9/16" | -0.005" to 0.005" | 0.397" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/8" | -0.005" to 0.005" | 0.459" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.584" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/8" | -0.005" to 0.005" | 0.709" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.834" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 0.959" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 1.084" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/8" | -0.005" to 0.005" | 1.209" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.005" to 0.005" | 1.334" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 5/8" | -0.010" to 0.010" | 1.459" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/4" | -0.010" to 0.010" | 1.584" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2" | -0.010" to 0.010" | 1.834" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.095" Wall Thick. (-0.014" to 0.014" Tolerance) | |||||||||||
| 5/16" | -0.005" to 0.005" | 0.123" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/16" | -0.005" to 0.005" | 0.248" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.31" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.56" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.81" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 0.935" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 1.06" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/8" | -0.005" to 0.005" | 1.185" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.010" to 0.010" | 1.31" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 5/8" | -0.010" to 0.010" | 1.435" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/4" | -0.010" to 0.010" | 1.56" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2" | -0.010" to 0.010" | 1.81" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2 1/2" | -0.010" to 0.010" | 2.31" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.12" Wall Thick. (-0.018" to 0.018" Tolerance) | |||||||||||
| 3/8" | -0.005" to 0.005" | 0.135" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/16" | -0.005" to 0.005" | 0.198" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1/2" | -0.005" to 0.005" | 0.26" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 9/16" | -0.005" to 0.005" | 0.323" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 5/8" | -0.005" to 0.005" | 0.385" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.51" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 7/8" | -0.005" to 0.005" | 0.635" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.76" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 0.885" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 1.01" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/8" | -0.005" to 0.005" | 1.135" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.005" to 0.005" | 1.26" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 3/4" | -0.010" to 0.010" | 1.51" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2" | -0.010" to 0.010" | 1.76" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2 1/4" | -0.010" to 0.010" | 2.01" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2 1/2" | -0.010" to 0.010" | 2.26" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3" | -0.010" to 0.010" | 2.76" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.156" Wall Thick. (-0.023" to 0.023" Tolerance) | |||||||||||
| 5/8" | -0.005" to 0.005" | 0.313" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
0.188" Wall Thick. (-0.028" to 0.028" Tolerance) | |||||||||||
| 5/8" | -0.005" to 0.005" | 0.249" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3/4" | -0.005" to 0.005" | 0.374" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1" | -0.005" to 0.005" | 0.624" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/8" | -0.005" to 0.005" | 0.749" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/4" | -0.005" to 0.005" | 0.874" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 1 1/2" | -0.005" to 0.005" | 1.124" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2" | -0.010" to 0.010" | 1.624" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 2 1/2" | -0.010" to 0.010" | 2.124" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
1/4" Wall Thick. (-0.038" to 0.038" Tolerance) | |||||||||||
| 1" | -0.005" to 0.005" | 1/2" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
| 3" | -0.010" to 0.010" | 2 1/2" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 | |||
6" Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | OD Tolerance | ID | ID Tolerance | Yield Strength | Hardness | Maximum Hardness After Heat Treatment | Specifications Met | Each | |
1/4" Wall Thick. (-0.038" to 0.038" Tolerance) | |||||||||
| 1" | -0.005" to 0.005" | 1/2" | Not Rated | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736 | 0000000 | 000000 |
| 1 1/2" | -0.005" to 0.005" | 1" | Not Rated | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736 | 0000000 | 00000 |
| 2" | -0.005" to 0.005" | 1 1/2" | Not Rated | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736 | 0000000 | 00000 |
Easy-to-Weld 4130 Alloy Steel Rectangular Tubes
- Yield Strength: 75,000 psi
- Hardness: Rockwell C20 (Hard)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C49
- Fabrication: Seamless
- Specifications Met: MIL-T-6736, SAE AMS-T-6736
Made from 4130 alloy steel, also known as chrome-moly steel, these tubes have low carbon content for good weldability. They’re often used for building frames and supports, since their flat sides make them easier to bolt than round tubes. To increase their wear resistance, you can harden them with heat treating. These tubes have been manufactured to SAE and military standards for quality and performance.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Outside | Inside | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Ht. | Wd. | 1/2 ft. Lg. | 1 ft. Lg. | 2 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
0.035" Wall Thick. | |||||||||
| 3/8" | 3/8" | 0.305" | 0.305" | 0000000 | |||||
| 1/2" | 1/2" | 0.43" | 0.43" | 0000000 | |||||
| 1/2" | 1" | 0.43" | 0.93" | 0000000 | |||||
| 5/8" | 5/8" | 0.555" | 0.555" | 0000000 | |||||
| 3/4" | 3/4" | 0.68" | 0.68" | 0000000 | |||||
| 1" | 1" | 0.93" | 0.93" | 0000000 | |||||
0.049" Wall Thick. | |||||||||
| 1/2" | 1" | 0.402" | 0.902" | 0000000 | |||||
| 5/8" | 5/8" | 0.527" | 0.527" | 0000000 | |||||
| 3/4" | 3/4" | 0.652" | 0.652" | 0000000 | |||||
| 3/4" | 1 1/2" | 0.652" | 1.402" | 0000000 | |||||
| 1" | 1" | 0.902" | 0.902" | 0000000 | |||||
| 1" | 1 1/2" | 0.902" | 1.402" | 0000000 | |||||
0.065" Wall Thick. | |||||||||
| 1/2" | 1" | 0.37" | 0.87" | 0000000 | |||||
| 5/8" | 5/8" | 0.495" | 0.495" | 0000000 | |||||
| 3/4" | 3/4" | 0.62" | 0.62" | 0000000 | |||||
| 1" | 1" | 0.87" | 0.87" | 0000000 | |||||
| 1" | 1 1/2" | 0.87" | 1.37" | 0000000 | |||||
| 1" | 1 3/4" | 0.87" | 1.62" | 0000000 | |||||
| 1" | 2" | 0.87" | 1.87" | 0000000 | |||||
Hard Wear-Resistant 52100 Alloy Steel Tubes
- Yield Strength: See table
- Hardness: See table
- Heat Treatable: Yes
- Maximum Hardness After Heat Treatment: Rockwell C60
- Specifications Met: ASTM A295
Easier to machine than 52100 alloy steel rods, these extremely hard and wear-resistant tubes are often used to create bearings, bushings, and other cylindrical parts that are under constant stress. They’re also known as chrome steel.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
| OD | OD Tolerance | ID | ID Tolerance | Yield Strength, psi | Hardness | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
0.245" Wall Thickness (-0.0123" to 0.0123" Tolerance) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1.207" | -0.005" to 0.005" | 0.717" | -0.01" to 0.01" | 140,000 | Rockwell B100 | 0000000 | |||
0.309" Wall Thickness (-0.0155" to 0.0155" Tolerance) | |||||||||
| 1.315" | -0.005" to 0.005" | 0.697" | -0.01" to 0.01" | 140,000 | Rockwell B100 | 0000000 | |||
0.353" Wall Thickness (-0.0176" to 0.0176" Tolerance) | |||||||||
| 1.551" | -0.005" to 0.005" | 0.846" | -0.01" to 0.01" | 140,000 | Rockwell B100 | 0000000 | |||
0.382" Wall Thickness (-0.0191" to 0.0191" Tolerance) | |||||||||
| 2.071" | -0.006" to 0.006" | 1.253" | -0.01" to 0.01" | 140,000 | Rockwell B100 | 0000000 | |||
0.472" Wall Thickness (-0.0236" to 0.0236" Tolerance) | |||||||||
| 2.57" | -0.008" to 0.008" | 1.627" | -0.01" to 0.01" | 140,000 | Rockwell B100 | 0000000 | |||
0.807" Wall Thickness (-0.061" to 0.061" Tolerance) | |||||||||
| 3.138" | -0.019" to 0.019" | 1.524" | Not Rated | 50,000 | Rockwell B95 | 0000000 | |||