430 Stainless Steel

Shapes Available

  • Coil
  • Round Bar
  • Sheet


  • Aerospace
  • Manufacturing
  • Medical

Industry Names

  • 430 Stainless Steel
  • 430 Stainless


  • Stainless Steel


  • AMS 5627 (Bar)
  • ASTM A240 (Sheet & Plate)
  • ASTM A276 (Bar)
  • ASTM A479 (Bar)
  • UNS S43000


  • Appliance Trim
  • Combistion Chambers
  • Gasoline Powered Automobile Engines
  • Railings
  • Safety Deposit Box Doors


  • Ferritic
  • Good Corrosion Resistance
  • Good Formability

430 Stainless Steel is a very widely used ferritic, non-hardenable, stainless steel. 430 has good mechanical properties that combines good corrosion resistance as well as heat and oxidation resistance up to 1500°F. When 430 is highly polished or in a buffed condition it exhibits maximum corrosion resistance. For all ferritic grades stress corrosion cracking resistance is quite high, 430 included. This grade is also easily formable which paves the way for usage in a large amount of applications as listed below. Machining 430 is easier than 304 or other austenitic grades. Drawn bars are also more easily machined than annealed.

Grade 430F is a free-machining variety of 430 stainless steel and thus easier to machine. 430F is available in round bar form.

430 can be used in the following applications:

  • Automotive Trim
  • Dishwasher Linings
  • Stove Trim Rings
  • Fasteners

For any questions please call Michlin today! Can’t find what you need on this list, chat now with questions. Looking for more info on 430? Check out our latest video on the 400 series martensitic stainless steels here. Or feel free to watch the most recent video we did just on straight grade 430 below:

Please contact us to request a quote. We specialize in hard to find material.

We work closely with many manufacturers in the aerospace & defense industry. We work with NADCAP approved heat treaters and testing laboratories. We can supply DFARS compliant material.

Metal Properties
.2% Yield Strength 45 ksi
Elongation 30 %
Ultimate Tensile Strength 75 ksi
Chemical Composition
C- .12
Cr16.0 18.0
Fe- Bal
Mn- 1.00
P- .04
S- .03
Si- 1.00
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