Stainless 430 F

Annealing Procedure

1250-1400 F (677--760 C), air cool.

Applications

Not to be used for containing high pressure gas or liquid due to its porosity. Successfully used in a variety of aircraft parts including fasteners, gears, shafts and pinions.

Cold Workability

This alloy will only withstand moderate cold forming.

Hardening Procedure

This alloy does not respond to heat treatment.

Hot Workability

A two step heating process is recommended starting with bringing the material to 1500 F (816 C), then slowly up to 1950-2100 F (1066-1149 C) before working. Do not work below 1500 F (816 C). Cool in air and anneal fully following cooling to room temperature.

Machinability

Excellent chip breakage due to the addition of sulfur. Good speeds and feeds are possible with this alloy.

Principle Design Features

This is a free machining version of 430. A basic ferritic, non-heat treatable, 17% chromium stainless with moderate strength and corrosion resistance.

Weldability

Not recommended for welding due to its high sulfur content. If welding is necessary, utilize low heat settings and filler metal of AWS E/ER430 for best results.