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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.
Made-to-Order 4140 Alloy Steel Rods
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When an off-the-shelf size won't do, we'll get you the exact dimensions you need.
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.
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.
Dia. | Dia. Tolerance | Choose a Length | Fabrication | Heat Treatment | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specs. Met | Per Inch | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N11 | 00000 | |
| 5/16" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N12 | 0000 | |
| 3/8" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N13 | 0000 | |
| 7/16" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N14 | 0000 | |
| 1/2" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N15 | 0000 | |
| 9/16" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N16 | 0000 | |
| 5/8" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N17 | 0000 | |
| 3/4" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N18 | 0000 | |
| 7/8" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N19 | 0000 | |
| 1" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N21 | 0000 | |
| 1 1/8" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N22 | 0000 | |
| 1 1/4" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N23 | 0000 | |
| 1 3/8" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N24 | 0000 | |
| 1 1/2" | -0.003" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N25 | 0000 | |
| 1 5/8" | -0.004" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N26 | 0000 | |
| 1 3/4" | -0.004" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N27 | 0000 | |
| 1 7/8" | -0.004" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N28 | 0000 | |
| 2" | -0.004" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N29 | 0000 | |
| 2 1/8" | -0.004" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N31 | 0000 | |
| 2 1/4" | -0.004" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N32 | 0000 | |
| 2 3/8" | -0.004" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N33 | 0000 | |
| 2 1/2" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N34 | 0000 | |
| 2 5/8" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N35 | 0000 | |
| 2 3/4" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N36 | 0000 | |
| 3" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N37 | 00000 | |
| 3 1/4" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N38 | 00000 | |
| 3 3/8" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N39 | 00000 | |
| 3 1/2" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N41 | 00000 | |
| 3 3/4" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N42 | 00000 | |
| 4" | -0.005" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N43 | 00000 | |
| 4 1/4" | -0.006" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N44 | 00000 | |
| 4 1/2" | -0.006" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N45 | 00000 | |
| 5" | -0.006" to 0" | 13" to 90" | Cold Worked | Annealed | 60,000 | Rockwell C19 (Medium) | Rockwell C48 | ASTM A108 | 7478N46 | 00000 |
