Today, our video will introduce another stainless steel found in specifications for aerospace applications. Two variants of type 416 exist in AMS Specifications. Full Transcript:
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Type 416 alloy with the UNS designation S41600 is the more common martensitic alloy; similar to type 410 but with added sulfer to improve machinability. UNS S41623 uses selenium instead of sulfer. Both alloys can be heat treated to moderate hardness and strength levels. Typical applications require some strength and hardness but where the limited corrosion resistance of these 12% chromium alloys is adequate. Elevated temperature applications are generally limited to a maximum of 1000 deg F.

Typical annealing temperature is from 1550 to 1650 deg F followed by slow cooling.

Typical hardening range is 1750 to 1850 deg F followed by an air or oil quench depending on section size. Temper as required for desired hardness

Maximum corrosion resistance is in the fully hardened condition.

Is 416 magnetic? Yes, 416 is magnetic.

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