Remarks | Insurance per to Contract terms; |
Grade | Rank | Chemical Composition( %) | ||||
C | Mn | Si | S | P | ||
Q195 | 0.06~0.12 | 0.25~0.50 | ≤0.3 | ≤0.05 | ≤0.045 | |
Q215 | A | 0.09~0.15 | 0.25~0.55 | ≤0.3 | ≤0.05 | ≤0.045 |
B | ≤0.045 | |||||
Q235 | A | 0.14~0.22 | 0.30~0.65 | ≤0.3 | ≤0.05 | ≤0.045 |
B | 0.12~0.20 | 0.30~0.70 | ≤0.045 | |||
C | ≤0.18 | 0.35~0.80 | - | ≤0.04 | ≤0.04 | |
D | ≤0.17 | ≤0.035 | ≤0.035 | |||
Q255 | A | 0.18~0.28 | 0.40~0.70 | ≤0.3 | ≤0.05 | ≤0.045 |
B | ≤0.045 | |||||
Q275 | 0.28~0.38 | 0.50~0.80 | ≤0.35 | ≤0.05 | ≤0.045 |