About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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Low-Carbon Steel Rods and Discs
- Yield Strength: See table
- Hardness: See table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: See table
- Specifications Met: See table
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.
Discs
| Dia. | Dia. Tolerance | Yield Strength | Hardness | Max. Hardness After Heat Treatment | Specifications Met | Each | |
1/2" Lg. | |||||||
|---|---|---|---|---|---|---|---|
| 2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 2 1/2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 0000 |
| 3" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 0000 |
| 3 1/2" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 4" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 4 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 5" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 5 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 6" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 6 1/2" | 0" to 0.125" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 7" | 0" to 0.156" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 8" | 0" to 0.156" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 9" | 0" to 0.188" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 10" | 0" to 0.25" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
1" Lg. | |||||||
| 2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 0000 |
| 2 1/2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 0000 |
| 3" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 3 1/2" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 4" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 4 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 5" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 5 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 6" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 6 1/2" | 0" to 0.125" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 7" | 0" to 0.156" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 8" | 0" to 0.156" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 9" | 0" to 0.188" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 10" | 0" to 0.25" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
3" Lg. | |||||||
| 2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 2 1/2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 3" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 3 1/2" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 4" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 4 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 5" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 5 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 6" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 000000 |
| 6 1/2" | 0" to 0.125" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 7" | 0" to 0.156" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 8" | 0" to 0.156" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 9" | 0" to 0.188" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 10" | 0" to 0.25" | Not Rated | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
6" Lg. | |||||||
| 2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 2 1/2" | -0.003" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 3" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 3 1/2" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 4" | -0.004" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 000000 |
| 4 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 5" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 000000 |
| 5 1/2" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 6" | -0.005" to 0" | Not Rated | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 000000 |
High-Strength 1045 Carbon Steel Rods and Discs
Stronger than low-carbon steel with equally good machinability, 1045 carbon steel is widely used for bolts, studs, and shafts.
If you don't see the size you're looking for, please specify a length under additional rod lengths.
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.
| Dia. | Dia. Tolerance | Each | |
1/2" Lg. | |||
|---|---|---|---|
| 4" | -0.006" to 0" | 0000000 | 000000 |
| 5" | -0.006" to 0" | 0000000 | 00000 |
| 6" | -0.006" to 0" | 0000000 | 00000 |
1" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 0000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 00000 |
| 5" | -0.006" to 0" | 00000000 | 00000 |
| 6" | -0.006" to 0" | 00000000 | 00000 |
3" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 00000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 00000 |
| 5" | -0.006" to 0" | 00000000 | 00000 |
| 6" | -0.006" to 0" | 00000000 | 00000 |
6" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 00000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 00000 |
| 5" | -0.006" to 0" | 00000000 | 000000 |
| 6" | -0.006" to 0" | 00000000 | 000000 |
9" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 00000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 000000 |
| 5" | -0.006" to 0" | 00000000 | 000000 |
| 6" | -0.006" to 0" | 00000000 | 000000 |
Multipurpose 4140 Alloy Steel Rods and Discs
Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.
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.
Rods
- Yield Strength: 60,000 psi
- Hardness: Rockwell C10 (Medium)
- Heat Treatable: Yes
- Maximum Hardness After Heat Treatment: Not Rated
- Specifications Met: ASTM A108
Discs
- Yield Strength: 60,000 psi
- Hardness: Rockwell C10 (Medium)
- Heat Treatable: Yes
- Maximum Hardness After Heat Treatment: Not Rated
- Specifications Met: ASTM A108
| Dia. | Dia. Tolerance | Heat Treatment | Each | |
1/2" Lg. | ||||
|---|---|---|---|---|
| 3" | -0.005" to 0" | Annealed (Softened) | 0000000 | 000000 |
| 4" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 5" | -0.006" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 6" | -0.006" to 0" | Annealed (Softened) | 0000000 | 00000 |
1" Lg. | ||||
| 3" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 4" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 5" | -0.006" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 6" | -0.006" to 0" | Annealed (Softened) | 0000000 | 00000 |
1 1/2" Lg. | ||||
| 3" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 4" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 5" | -0.006" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 6" | -0.006" to 0" | Annealed (Softened) | 0000000 | 000000 |
2" Lg. | ||||
| 3" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 4" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 5" | -0.006" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 6" | -0.006" to 0" | Annealed (Softened) | 0000000 | 000000 |
3" Lg. | ||||
| 3" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 4" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 5" | -0.006" to 0" | Annealed (Softened) | 0000000 | 000000 |
| 6" | -0.006" to 0" | Annealed (Softened) | 0000000 | 000000 |
4" Lg. | ||||
| 3" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 4" | -0.005" to 0" | Annealed (Softened) | 0000000 | 00000 |
| 5" | -0.006" to 0" | Annealed (Softened) | 0000000 | 000000 |
| 6" | -0.006" to 0" | Annealed (Softened) | 0000000 | 000000 |