Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Tio | Cu | Other |
---|---|---|---|---|---|---|---|---|---|---|---|
ACX 555 | <=0.025 | <=1.00 | <=1.00 | <=0.040 | <=0.015 | 17.50-19.50 | - | 1.80-2.50 | => 0.12 | - | Nb=0.25-0.50 |
ACX570 | <=0.025 | <=1.00 | <=1.00 | <=0.040 | <=0.015 | 17.50-19.50 | - | 2.00-2.50 | <= 0.010 | Nb=[0.26+7(C+N)] a 0.80 N <=0.030 |