Alloy Of The Week: Stainless Steel 430

July 21, 2016

817FGl5ziXL      Stainless Steel 430

Stainless Steel: One of the most popular alloys used throughout the entire world. This material is found everywhere around us, whether it be in the car you drive to work, the pen you write your notes with, or even in the construction of your office building. Now, there are more than 57 stainless steel standard alloys that are recognized, but let’s dive deep on one of the most popular: Stainless Steel 430.

This particular alloy, especially annealed, is one of the most highly sought-after straight chrome stainless steels. This is because of it’s excellent heat and corrosion resistant properties, as well as ductility, it can be used in a wide range of applications. We see this stainless steel 430 used for decorative purposes, such as: metal trim, hinges, and custom formed parts or stampings. Also used for fasteners and lashing wire, this alloy can be tailored to a specific application by adding either annealing, hot rolling, or cold rolling finish to the material.

Below you will find the specific metallurgical properties of this alloy.

UNS: S43000 • Ω/cir. mil. .: 360 • Weight/Density: .282 lbs/in^2 (7.8 g/cm3) •

• Chemical Composition %: Cr 16-18%, C .12% max, Si 1% max, Mn 1% max, Fe – Balance

• Coeff. of Lin. Expansion, X 10-6: 10.4 (100˚C), 11.0 (300˚C), 11.2 (500˚C), 11.9 (800˚C) •

• Conductvity: 24 w/mK • Specific Heat: .11 cal./gm @ 20˚C • Specific Gravity: 7.65 • Melting Point: ~1,510˚C (~2,750˚F) •

• Elongation: 15-30% • Max Operating Temp: ~815˚C (~1,500˚F) • Yield Point: 40,000-60,000 PSI • Soft Tensile: 64,000-79,000 PSI

This alloys ability to resist nitric acid corrosion creates a situation where this material  can be used for mechanical applications, but also remain appealing to the eye. The most common places you will find this particular alloy are in:

  • Linings for Appliances
  • Automotive Trim
  • Lashing Wire
  • Fasteners

Precision Wire Technologies carries this alloy, among many others from Bronze, Brass, Stainless Steel, Nickel Plated, and other Pure Nickel materials. Check our “Alloys” page to see if we have what you are looking for!

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Wire Watch

This week’s wire watch is highlighting the stainless steel alloy in an interesting and beautiful wire forming video. Enjoy!