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Composition ranges for 631 grade of stainless steels.
Grade |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Cu |
Al |
SUS631 |
≤0.09 |
≤1.00 |
≤1.00 |
≤0.035 |
≤0.030 |
6.50~7.75 |
16.00~18.00 |
≤0.50 |
0.75~1.50 |
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