Stainless Steel 430F
Principal Design Features
A basic ferritic non-heat treatable stainless steel. Its strengths are in ductility, formability, good corrosion and oxidation resistance, thermal conductivity and finish quality.
Appliance, automotive and architectural trim, vaults, heat exchangers, scientific apparatus and vending machine components.
Rated at 60 % of B1112. Relatively easily machined in all common procedures.
Similar in forming characteristics to 304 stainless steel without the same degree of ductility. It does not, however, work harden greatly.
All common welding methods used for stainless will be successful with 430. Filler metal should be AWS E/ER308 or 312.
Bring the workpiece to 1500 F (816 C), then on quickly to 1900 F (1038 C). Prolonged exposure at this temperature will cause grain growth. Do not work this material at less than 1500 F (816 C). Air cool to room temperature and anneal.
Generally the recommended method of hot forming is to work the material at between 1300 and 1500 F. Hot forming is only required on heavy sections.
Soak at 1500 F, furnace cool (50 F/hour) to 1100 F, then air cool.
430 does not respond to hardening by heat treatment.
Specific Gravity: 7.75
Specific Heat: 0.11
Electrical Resistivity: 360
Melting Point: 2750
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