AISI 9310 is a low alloy steel containing nickel, chromium and molybdenum noted for its good hardenability with high impact and fatigue strength. It is often used for carburized case hardened parts.
The alloy machines by conventional means as with the other low alloy steels. It is best to machine 9310 while it is in the normalized or tempered condition.
The alloy has good ductility even in the quenched and tempered condition. Thus it may be readily formed by conventional methods.
Weldability by standard process, using established weld procedures, is good.
Typical heat treatment for carburizing is to heat at 1700 F in the carburizing environment, followed by an oil quench. The alloy may then be normalized at 1650 F, air cooled, and tempered at 300 F for good core mechanical properties on the order of 170 ksi tensile strength.
Forge at 2175 F down to 1700 F.
No data given - contact the alloy supplier.
The alloy has good ductility even in the hardened and tempered condition. It can be cold worked by conventional methods as used on the other low alloy steels.
Anneal at 1575 F and slow furnace cool.
Not applicable to this alloy.
The usual tempering temperature for optimum properties is 300 F.
The alloy will harden due to cold working or by thermal treatment and oil quenching. See "Heat Treatment".
Specific Gravity: 7.83
Specific Heat: 0.115
Melting Point: 2600
Thermal Conductivity: 238
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