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About Steel
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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 Rods
Also known as chrome-moly steel, this versatile 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 added wear resistance, the surface can be hardened with heat treating.
If you don't see the size you're looking for, check out our Made-to-Order 4140 Alloy Steel Rods.
Note: Rods 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.
Long Rods
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Hot Rolled—Hot-rolled steel rods have lower yield strength than cold-worked rods, so they’re easier to shape. They have a rougher surface finish than cold-worked rods, so they are good for applications where you need additional processing.
1 ft. Long | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Dia. Tolerance | Fabrication | Heat Treatment | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specs. Met | Each | ||
| 4 1/4" | 0" to 0.062" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K756 | 0000000 | |
| 4 1/2" | 0" to 0.062" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K757 | 000000 | |
| 5 1/2" | 0" to 0.078" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K758 | 000000 | |
| 6 1/4" | 0" to 0.125" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K759 | 000000 | |
| 6 1/2" | 0" to 0.125" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K765 | 000000 | |
| 7" | 0" to 0.156" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K766 | 000000 | |
| 7 1/2" | 0" to 0.156" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K767 | 000000 | |
| 8" | 0" to 0.156" | Hot Rolled | Annealed | 60,000 | Rockwell C10 (Medium) | Not Rated | ASTM A322 | 8927K768 | 000000 | |
Wear-Resistant 4820 Alloy Steel Rods
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Often used for gears, bushings, and pins, this 4820 alloy steel resists wear from friction and abrasion. It’s a case-hardening steel, which means that heat treating will create a hard surface without making the interior brittle.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Dia. | Dia. Tolerance | Fabrication | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specs. Met | 1 ft. Long | 3 ft. Long | 6 ft. Long | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2" | -0.015" to 0.015" | Hot Rolled | 73,000 | Rockwell B96 (Medium) | Not Rated | ASTM A29, ASTM A322 | 9636N111 | 000000 | 0000000 | 0000000 | |
| 3" | 0" to 0.046" | Hot Rolled | 73,000 | Rockwell B96 (Medium) | Not Rated | ASTM A29, ASTM A322 | 9636N115 | 000000 | 000000 | 000000 | |
| 4" | 0" to 0.062" | Hot Rolled | 73,000 | Rockwell B96 (Medium) | Not Rated | ASTM A29, ASTM A322 | 9636N119 | 000000 | 000000 | — | |
| 5" | 0" to 0.078" | Hot Rolled | 73,000 | Rockwell B96 (Medium) | Not Rated | ASTM A29, ASTM A322 | 9636N123 | 000000 | 000000 | — |
