1.4462 S31803 Stainless Steel

Everything You Need to Know About Acid-Resistant Duplex Stainless Steel X2CrNiMoN22-5-3, 1.4462 S31803 , SIS2377

What is 1.4462 S31803 Stainless Steel Quality?

1.4462 S31803 quality stainless steel is an acid-resistant duplex stainless steel with austenitic-ferritic microstructure. Compared to other austenitic stainless-steel varieties, 1.4462 S31803 stainless steel has twice the strength, making it ideal for applications with weight restrictions.

1.4462 S31803 grade stainless steel has the following features:

  1. Excellent corrosion resistance
  2. Good resistance to pitting and crevice corrosion
  3. Can be welded easily

Why use 1.4462 S31803 Stainless Steel?

Stainless steel grade 1.4462 S31803 has the stress corrosion characteristics of ferritic grades, although slightly lower. The low nickel content in the steel’s chemical composition makes it somewhat immune to fluctuations in nickel prices and also makes it a more economical option compared to other austenitic grades.

What is the chemical composition of 1.4462 S31803 stainless steel?

The chemical composition of 1.4462 S31803 stainless steel is as follows:

1.4462 S31803 steel chemical element % present
Carbon (C) [Max] 0.03%
Manganese (Mn) [Max] 2.00%
Silicon (Si) [Max] 1.00%
Chromium (Cr) 21.0 to 23.0%
Nitrogen (N) [Max] 0.10 to 0.22%
Molybdenum (Mo) [Max] 2.50 – 3.50%
Nickel (Ni) 4.50 to 6.50%
Phosphorus (P) [Max] 0.035%
Sulphur (S) [Max] 0.015%

How to work with 1.4462 S31803 steel

1.4462 S31803 steel hot work and heat treatment temperature
Hot Forming °C Annealing °C
954 to 1232 Min 1037
Followed by water quenching

Applications of 1.4462 S31803 stainless steel

The main application areas of 1.4462 S31803 stainless steel are:

  1. pistons
  2. spindles
  3. Impeller and pump shafts
  4. Chemical processing plants
  5. oil and gas industry

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