About Tool Steel
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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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Low-Carbon Steel Sheets and Bars
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. Some of 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.
- Hardness: See table
- Yield Strength: 34,000 psi
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
| Wd., mm | Hardness | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
2 mm Thickness (-0.06 to 0 mm Tolerance) | |||||
|---|---|---|---|---|---|
| 6 | Rockwell B61 (Medium) | 0000000 | |||
| 12 | Rockwell B61 (Medium) | 0000000 | |||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
3 mm Thickness (-0.06 to 0 mm Tolerance) | |||||
| 6 | Rockwell B61 (Medium) | 0000000 | |||
| 12 | Rockwell B61 (Medium) | 0000000 | |||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
4 mm Thickness (-0.075 to 0 mm Tolerance) | |||||
| 6 | Rockwell B61 (Medium) | 0000000 | |||
| 12 | Rockwell B61 (Medium) | 0000000 | |||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
5 mm Thickness (-0.075 to 0 mm Tolerance) | |||||
| 6 | Rockwell B61 (Medium) | 0000000 | |||
| 12 | Rockwell B90 (Medium) | 0000000 | |||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
6 mm Thickness (-0.075 to 0 mm Tolerance) | |||||
| 6 | Rockwell B61 (Medium) | 0000000 | |||
| 12 | Rockwell B61 (Medium) | 0000000 | |||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
8 mm Thickness (-0.09 to 0 mm Tolerance) | |||||
| 12 | Rockwell B61 (Medium) | 0000000 | |||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
| 50 | Rockwell B61 (Medium) | 0000000 | |||
10 mm Thickness (-0.09 to 0 mm Tolerance) | |||||
| 12 | Rockwell B61 (Medium) | 0000000 | |||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
| 50 | Rockwell B61 (Medium) | 0000000 | |||
15 mm Thickness (-0.11 to 0 mm Tolerance) | |||||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
| 50 | Rockwell B61 (Medium) | 0000000 | |||
20 mm Thickness (-0.13 to 0 mm Tolerance) | |||||
| 20 | Rockwell B61 (Medium) | 0000000 | |||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
| 50 | Rockwell B61 (Medium) | 0000000 | |||
25 mm Thickness (-0.13 to 0 mm Tolerance) | |||||
| 25 | Rockwell B61 (Medium) | 0000000 | |||
| 50 | Rockwell B61 (Medium) | 0000000 | |||
Tight-Tolerance Low-Carbon Steel Bars
With a thickness that's precision ground to a tight tolerance, these bars are sometimes called flat stock. Low-carbon steel, also known as mild 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. All steel meets ASTM A36 standards for materials.
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.
- Yield Strength: 36,000 psi
- Hardness: Not Rated
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C65
| Wd., mm | Mechanical Finish | Specifications Met | 1 ft. Lg. | 2 ft. Lg. | |
3 mm Thick. (-0.025 to 0.025 mm Tolerance) | |||||
|---|---|---|---|---|---|
| 10 | Precision Ground | ASTM A36 | 00000000 | ||
| 15 | Precision Ground | ASTM A36 | 00000000 | ||
| 20 | Precision Ground | ASTM A36 | 00000000 | ||
| 25 | Precision Ground | ASTM A36 | 00000000 | ||
4 mm Thick. (-0.025 to 0.025 mm Tolerance) | |||||
| 10 | Precision Ground | ASTM A36 | 00000000 | ||
| 15 | Precision Ground | ASTM A36 | 00000000 | ||
| 20 | Precision Ground | ASTM A36 | 00000000 | ||
| 25 | Precision Ground | ASTM A36 | 00000000 | ||
5 mm Thick. (-0.025 to 0.025 mm Tolerance) | |||||
| 10 | Precision Ground | ASTM A36 | 00000000 | ||
| 15 | Precision Ground | ASTM A36 | 00000000 | ||
| 20 | Precision Ground | ASTM A36 | 00000000 | ||
| 25 | Precision Ground | ASTM A36 | 00000000 | ||
10 mm Thick. (-0.025 to 0.025 mm Tolerance) | |||||
| 10 | Precision Ground | ASTM A36 | 00000000 | ||
| 15 | Precision Ground | ASTM A36 | 00000000 | ||
| 20 | Precision Ground | ASTM A36 | 00000000 | ||
| 25 | Precision Ground | ASTM A36 | 00000000 | ||
Low-Carbon Steel Bars with Rounded Edges
- Yield Strength: 35,000 psi
- Hardness: Rockwell B65 (Medium)
- Heat Treatable: No
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.
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.
High-Strength 1045 Carbon Steel Sheets and Bars
Stronger than low-carbon steel with equally good machinability, 1045 carbon steel is widely used for bolts, studs, and shafts.
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.
- Yield Strength: Inch: 77,000 psi
Metric: 45,000 psi - Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Inch: Rockwell C60
Metric: Rockwell C45 - Specifications Met: See table
| Thick. | Thick. Tolerance | Wd. | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
| 5mm | -0.075mm to 0mm | 20mm | 00000000 | |||
| 5mm | -0.075mm to 0mm | 25mm | 00000000 | |||
| 10mm | -0.09mm to 0mm | 15mm | 00000000 | |||
| 10mm | -0.09mm to 0mm | 20mm | 00000000 | |||
| 10mm | -0.09mm to 0mm | 25mm | 00000000 | |||
| 10mm | -0.09mm to 0mm | 30mm | 00000000 | |||
| 10mm | -0.09mm to 0mm | 50mm | 00000000 | |||
| 10mm | -0.09mm to 0mm | 60mm | 00000000 | |||
| 15mm | -0.11mm to 0mm | 20mm | 00000000 | |||
| 15mm | -0.11mm to 0mm | 25mm | 00000000 | |||
| 15mm | -0.11mm to 0mm | 30mm | 00000000 | |||
| 15mm | -0.11mm to 0mm | 50mm | 00000000 | |||
| 15mm | -0.11mm to 0mm | 60mm | 00000000 | |||
| 20mm | -0.13mm to 0mm | 20mm | 00000000 | |||
| 20mm | -0.13mm to 0mm | 30mm | 00000000 | |||
| 20mm | -0.13mm to 0mm | 50mm | 00000000 | |||
| 25mm | -0.13mm to 0mm | 25mm | 00000000 | |||
| 25mm | -0.13mm to 0mm | 50mm | 00000000 | |||
| 25mm | -0.13mm to 0mm | 60mm | 00000000 | |||
| 40mm | -0.16mm to 0mm | 60mm | 00000000 |
Tight-Tolerance Multipurpose Oil-Hardening O1 Tool Steel Sheets and Bars
Also known as flat stock, these precision-ground sheets and bars are held to a tight thickness tolerance. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion.
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.
- Yield Strength: 80,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C65
- Specifications Met: ASTM A681
3 ft. Lg. | |||||
|---|---|---|---|---|---|
| Wd., mm | Heat Treatment | Mechanical Finish | Flatness Tolerance | Each | |
3 mm Thick. (0 mm to 0.05 mm Tolerance) | |||||
| 15 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
| 25 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 00000 |
| 100 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
4 mm Thick. (0 mm to 0.05 mm Tolerance) | |||||
| 15 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 00000 |
| 30 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 00000 |
5 mm Thick. (0 mm to 0.05 mm Tolerance) | |||||
| 15 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 00000 |
| 20 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 00000 |
| 25 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 00000 |
| 30 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 00000 |
6 mm Thick. (0 mm to 0.05 mm Tolerance) | |||||
| 20 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
| 25 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
| 150 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
10 mm Thick. (0 mm to 0.05 mm Tolerance) | |||||
| 15 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
| 20 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
| 25 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
| 40 | Annealed (Softened) | Precision Ground | 0.005" per ft. | 0000000 | 000000 |
Multipurpose 304 Stainless Steel
From cookware to chemical-processing equipment, 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.
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.
- Yield Strength: 30,000 psi
- Hardness: See Table
- Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met: See Table
| Wd. | Wd. Tolerance | Fabrication | Hardness | Straightness Tolerance | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
3mm (-0.06mm to 0mm Tolerance) | ||||||||
|---|---|---|---|---|---|---|---|---|
| 12mm | -0.11mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 20mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 25mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
5mm (-0.075mm to 0mm Tolerance) | ||||||||
| 12mm | -0.11mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 20mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 25mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
8mm (-0.09mm to 0mm Tolerance) | ||||||||
| 20mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 25mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 50mm | -0.16mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
10mm (-0.09mm to 0mm Tolerance) | ||||||||
| 20mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 25mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 50mm | -0.16mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
15mm (-0.11mm to 0mm Tolerance) | ||||||||
| 20mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 25mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 50mm | -0.16mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
20mm (-0.13mm to 0mm Tolerance) | ||||||||
| 20mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 25mm | -0.13mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||
| 50mm | -0.16mm to 0mm | Cold Worked | Rockwell B80 (Medium) | Not Rated | 0000000 | |||