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Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.
Multipurpose 4140 Alloy Steel Hex Bars
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Also known as chrome-moly steel, this versatile alloy is used for a wide range of parts, such as gears and shafts. It resists fracturing from repeated stress. For additional wear resistance, it can also be surface hardened with heat treating.
Note: Hex bars may be made from either 4140 or 4142 alloy steel. They are interchangeable in most applications.
Wd., mm | Wd. Tolerance, mm | Heat Treatment | Yield Strength, psi | Hardness | 1 ft. Long | 3 ft. Long | 6 ft. Long | ||
|---|---|---|---|---|---|---|---|---|---|
| 5 | -0.051 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K1 | 00000 | 000000 | 000000 | |
| 7 | -0.051 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K2 | 0000 | 00000 | 00000 | |
| 10 | -0.051 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K3 | 00000 | 00000 | 00000 | |
| 12 | -0.051 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K4 | 00000 | 00000 | 00000 | |
| 15 | -0.051 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K5 | 00000 | 00000 | 000000 | |
| 20 | -0.013 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K6 | 00000 | 000000 | 000000 | |
| 27 | -0.013 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K7 | 00000 | 000000 | 000000 | |
| 50 | -0.102 to 0 | Annealed | 60,000 | Rockwell B90 (Medium) | 6607K8 | 000000 | 000000 | 000000 |
