To anneal this alloy, heat to 1500°F-1550°F (815-842°C) and hold for one hour per inch of
thickness and furnace cool to room
temperature. Such annealing should produce a
Brinell hardness of 126-192 HB in Alloy 410 material.
A hardening
heat treatment is necessary to bring out the maximum hardness and wear resistance. Since these materials absorb heat very slowly, they should be heated gradually and allowed to remain at temperature long enough to ensure uniform temperature in thick sections. For maximum strength,
hardness, and
corrosion resistance, slowly heat the alloy to 1800°F (982°C) and
quench to room temperature in oil.
