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.

Applications

Appliance, automotive and architectural trim, vaults, heat exchangers, scientific apparatus and vending machine components.

Machinability

Rated at 60 % of B1112. Relatively easily machined in all common procedures.

Forming

Similar in forming characteristics to 304 stainless steel without the same degree of ductility. It does not, however, work harden greatly.

Welding

All common welding methods used for stainless will be successful with 430. Filler metal should be AWS E/ER308 or 312.

Forging

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.

Hot Working

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.

Annealing

Soak at 1500 F, furnace cool (50 F/hour) to 1100 F, then air cool.

Hardening

430 does not respond to hardening by heat treatment.

Density: 0.276

Specific Gravity: 7.75

Specific Heat: 0.11

Electrical Resistivity: 360

Melting Point: 2750

MoETensile: 29

 

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