431 Stainless Steel

431 features and applications:

431(16Cr-2Ni) Cr steel containing Ni can obtain high mechanical properties through heat treatment, corrosion resistance is better than 410 steel and 430 steel. 431 stainless steel corresponding to China 1Cr17Ni2, Japan JIS SUS431.

431 Chemical composition

Carbon C: ≤0.20

Manganese Mn: ≤1.00

Silicon Si: ≤1.00

Cr: 15.0 to 17.0

Nickel Ni : 1.25~2.50

P: ≤0.04

Sulfur S: ≤0.03

Note: (1) The single value is the highest unless otherwise indicated; For some pipe making process, the nickel content of some types of austenitic stainless steel must be slightly higher than the value shown in the table; At will; (4) The highest Ta content was 0.10%; The highest content was 0.75%; The highest content is 0.70%