9310 Alloy Steel (also known as AISI 9310 steel) is a low alloy steel composed primarily of nickel and chromium. It shows high hardenability, high core hardness and high fatigue strength. 9310 also possesses solid ductility, weldability, and machinability properties, and is an excellent metal for use in heavy-duty machinery, case hardened components, and gears.


9310 Alloy Steel Grade Chemistry
Ni Cr Mn Si P S Mo C
MIN 3.00 1.00 0.45 0.15 0.08 0.08
MAX 3.50 1.40 0.65 0.30 0.025 0.025 0.15 0.13



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H11, HP9-4-30, 4340 AIR MELT, 9310