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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.
Extreme-Strength Highly Fatigue-Resistant 4330 Alloy Steel Rods
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Made of a chromium-nickel-molybdenum alloy and strengthened with vanadium, this steel is the strongest alloy we offer. A vacuum arc remelting (VAR) process gives 4330 alloy steel excellent strength, hardness, and fatigue resistance. It also resists cracking from impact or compression. In addition to the VAR, this steel's been normalized—a form of heat treatment that helps yield consistent results if you want to machine or heat treat it further. More heat treatment will make the surface harder and more wear resistant. These rods are often used for gears, axles, and shafts.
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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 | Fabrication | Heat Treatment | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specs. Met | 1 ft. Long | 3 ft. Long | 6 ft. Long | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2" | 0" to 0.005" | Hot Rolled | Normalized | 185,000 | Rockwell C23 (Hard) | Rockwell C46 | SAE AMS2301, SAE AMS6411 | 9497N101 | 0000000 | 0000000 | 000000000 | |
| 2 1/2" | -0.006" to 0" | Hot Rolled | Normalized | 185,000 | Rockwell C23 (Hard) | Rockwell C46 | SAE AMS2301, SAE AMS6411 | 9497N111 | 000000 | 00000000 | — | |
| 3" | -0.006" to 0" | Hot Rolled | Normalized | 185,000 | Rockwell C23 (Hard) | Rockwell C46 | SAE AMS2301, SAE AMS6411 | 9497N121 | 000000 | 00000000 | — | |
| 4" | -0.006" to 0" | Hot Rolled | Normalized | 185,000 | Rockwell C23 (Hard) | Rockwell C46 | SAE AMS2301, SAE AMS6411 | 9497N131 | 000000 | 00000000 | — |
