Stainless 416

Annealing Procedure

1200-1400 F (650-760 C), air cool. For maximum softness, 1500-1650 F (816-900 C), furnace cool.

Applications

A wide variety of screw machine parts including nuts, bolts, screws, gears and pinions, valve trim, shafts and axles.

Cold Workability

This alloy will accept only minor cold working. Severe deformation will result in cracking.

Hardening Procedure

Soak at 1700-1850 F (927-1010 C) oil quench.

Hot Workability

All hot work procedures should commence following uniform heating to 2100-2250 F (1149-1232 C). Hot work below 1700 F (927 C) may result in cracking.

Machinability

Speeds and feed comparable with those of some of the free machining carbon steels. Good chip breakage. Material heat treated at 200 F and cold drawn will give best results.

Principle Design Features

416 was the first free machining stainless steel. It is a heat treatable chromium steel with excellent machinability and non-galling characteristics. The alloy is magnetic in all conditions.

Tempering Procedure

Temper to achieve properties desired. Avoid tempering in the range of 750-1050 F (399-566 C) to avoid a decrease in impact strength and corrosion resistance.

Weldability

Welding of any type is not recommended, as the high sulfur content creates porosity.