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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 Bars
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Also known as chrome-moly steel, this versatile alloy steel is used for a wide range of parts, such as molds and structural supports. It resists fracturing from repeated stress. You can also surface harden it with heat to add wear resistance.
If you don't see the size you're looking for, check out our Made-to-Order 4140 Alloy Steel Bars.
Note: Bars may be made from either 4140 or 4142 alloy steel. They are interchangeable in most applications.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
3" Long | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Wd. | Fabrication | Heat Treatment | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specs. Met | Each | |||
3" Thick | ||||||||||
| 3" | Cold Worked | Annealed | 60,000 | Rockwell B90 (Medium) | Rockwell C60 | ASTM A108 | 6552K515 | 000000 | ||
Tight-Tolerance Hardened Multipurpose 4140 Alloy Steel Bars
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Also known as flat stock, the thickness on these bars is held to a tight tolerance. They are hardened for increased abrasion and impact resistance. Made from versatile alloy steel, also known as chrome-moly steel, these bars resist fracturing from repeated stress. They’re used for a wide range of parts, including molds and structural supports.
Note: Bars may be made from either 4140 or 4142 alloy steel. They are interchangeable in most applications.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
3" Long | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Wd. | Fabrication | Heat Treatment | Yield Strength, psi | Hardness | Mechanical Finish | Specs. Met | Each | |||
3" Thick (-0.002" to 0.002" Tolerance) | ||||||||||
| 3" | Hot Rolled | Hardened | 121,000 | Rockwell C27 (Hard) | Precision Ground | ASTM A829 | 89715K983 | 0000000 | ||
