Grade I
Type | Minimum | maximum |
---|---|---|
Si | 44.00% | 53.00% |
Zr | 35.00% | 40.00% |
C | – | 0.50% |
S | – | 0.04% |
P | – | 0.04% |
Al | – | 1.00% |
Fe | Balance | – |
Grade II
Type | Minimum | maximum |
---|---|---|
Si | 50.00% | 70.00% |
Zr | 16.00% | 20.00% |
C | – | 0.20% |
S | – | 0.030% |
P | – | 0.030% |
Al | – | 1.50% |
Fe | Balance | – |