Chemical composition

C(%) Si(%) Al(%) Mn(%) P(%) N(%) S(%) Cr(%) Ni(%)
�Q0.09 �Q1.0 0.75-1.50 �Q1.0 �Q0.04 0.75-1.50 �Q0.03 16.0-18.0 6.50-7.75

Applications

  • Heat-Resisting Stainless Steels
    Corrosion-Resisting Stainless Steels

Country Code

  • JIS

Standard

  • US631


Steel Type
SUS631

Heat treatment


Relate Steel Type

Steel Type Country Code C(%) Si(%) Al(%) Mn(%) P(%) N(%) S(%) Cr(%)
631 CNS �Q0.09 �Q1.0 0.75-1.50 �Q1.0 �Q0.04 �Q0.03 16.0-18.0
0Cr17-Ni7A1 GB �Q0.09 �Q1.0 0.75-1.50 �Q1.0 �Q0.035 �Q0.03 16.0-18.0
SUS631 JIS �Q0.09 �Q1.0 0.75-1.50 �Q1.0 �Q0.04 0.75-1.50 �Q0.03 16.0-18.0
631 AISI �Q0.09 �Q1.0 0.75-1.50 �Q1.0 �Q0.04 �Q0.03 16.0-17.5
X7CrNi-A117-7 DIN �Q0.09 �Q1.0 �Q1.0 �Q0.045 0.75-1.50 �Q0.03 16.0-18.0
630 CNS �Q0.07 �Q1.0 �Q1.0 �Q0.04 �Q0.03 15.0-17.0
0Cr17Ni-4Cu4Nb GB �Q0.07 �Q1.0 �Q1.0 �Q0.04 �Q0.03 15.0-17.5
X5CrNi-CuNb17-4 DIN �Q0.07 �Q1.0 �Q1.0 �Q0.045 �Q0.03 15.5-17.5