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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 Hardened 4140 Alloy Steel Bars
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When an off-the-shelf size won't do, we'll get you the exact dimensions you need.
They are hardened for increased abrasion and impact resistance. Also known as chrome-moly steel, this versatile alloy steel is used for a variety of parts, such as molds and structural supports. It resists fracturing from repeated stress. These ground bars are decarb-free, which means residue created during manufacturing has been removed. As a result, these bars have a uniform surface that's ready for machining, heat treating, and finishing. Because the thickness is oversized, you can finish these bars to your exact requirements.
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.
Wd. | Choose a Length | Fabrication | Yield Strength, psi | Hardness | Mechanical Finish | Specs. Met | Per Inch | |||
|---|---|---|---|---|---|---|---|---|---|---|
1/2" Thick (0.020" to 0.04" Tolerance) | ||||||||||
| 1" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N11 | 00000 | ||
| 1 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N12 | 0000 | ||
| 2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N13 | 0000 | ||
| 2 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N14 | 0000 | ||
| 3" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N15 | 0000 | ||
| 4" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N16 | 0000 | ||
3/4" Thick (0.020" to 0.04" Tolerance) | ||||||||||
| 1" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N17 | 0000 | ||
| 1 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N18 | 0000 | ||
| 2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N19 | 0000 | ||
| 2 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N21 | 0000 | ||
| 3" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N22 | 0000 | ||
| 4" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N23 | 0000 | ||
1" Thick (0.020" to 0.04" Tolerance) | ||||||||||
| 1" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N24 | 0000 | ||
| 1 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N25 | 0000 | ||
| 2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N26 | 0000 | ||
| 2 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N27 | 0000 | ||
| 3" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N28 | 00000 | ||
| 4" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N29 | 00000 | ||
1 1/4" Thick (0.020" to 0.04" Tolerance) | ||||||||||
| 1 1/4" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N31 | 0000 | ||
| 1 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N32 | 0000 | ||
| 2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N33 | 0000 | ||
| 2 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N34 | 0000 | ||
| 3" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N35 | 00000 | ||
| 4" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N36 | 00000 | ||
1 1/2" Thick (0.020" to 0.04" Tolerance) | ||||||||||
| 1 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N37 | 0000 | ||
| 2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N38 | 00000 | ||
| 2 1/2" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N39 | 00000 | ||
| 3" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N41 | 00000 | ||
| 4" | 13" to 90" | Hot Rolled | 95,000 | Rockwell C25 (Hard) | Ground | ASTM A578, ASTM A829 | 6682N42 | 00000 | ||
