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JIS SUS 631

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.09
Si   1.00
Mn   1.00
P   0.04
S   0.03
Cr 16.00  18.00
Ni 6.50  7.75
Mo  
N  
Al 0.75  1.50