耐候钢牌号 | 质量等级 | C | Si | Mn | P | S | Cu | Cr | Ni | 其他元素 |
Q235NQR1 | C、D、E | ≤0.13 | 0.10~0.40 | 0.20~0.60 | ≤0.030 | ≤0.030 ≤0.020 ≤0.010 | 0.25~0.55 | 0.40~0.80 | ≤0.65 | a,b |
Q295NQR1 | C、D、E | ≤0.15 | 0.10~0.50 | 0.60~1.00 | ≤0.030 | ≤0.030 ≤0.020 ≤0.010 | 0.25~0.55 | 0.40~0.80 | ≤0.65 | a,b |
Q295NQR2 | C、D | ≤0.12 | 0.10~0.40 | 0.20~0.50 | 0.07~0.12 | ≤0.030 ≤0.020 | 0.25~0.45 | 0.30~0.65 | ≤0.50 | a,b |
Q355NQR1 | C、D、E | ≤0.16 | ≤0.50 | 0.50~1.50 | ≤0.030 | ≤0.030 ≤0.020 ≤0.010 | 0.25~0.55 | 0.40~0.80 | ≤0.65 | a,b |
Q355NQR2 | C、D | ≤0.12 | 0.20~0.75 | ≤1.00 | 0.07~0.15 | ≤0.030 ≤0.020 | 0.25~0.55 | 0.30~1.25 | ≤0.65 | a,b |
Q415NQR1 | E | ≤0.12 | ≤0.65 | ≤1.10 | ≤0.025 | ≤0.010 | 0.25~0.55 | 0.30~1.25 | 0.12~0.65 | a,c |
Q460NQR1 | E | ≤0.12 | ≤0.65 | ≤1.40 | ≤0.025 | ≤0.010 | 0.25~0.55 | 0.30~1.25 | 0.12~0.65 | a,c |
Q500NQR1 | E | ≤0.12 | ≤0.65 | ≤2.0 | ≤0.025 | ≤0.010 | 0.25~0.55 | 0.30~1.25 | 0.12~0.65 | a,c |
Q550NQR1 | E | ≤0.16 | ≤0.65 | ≤2.0 | ≤0.025 | ≤0.010 | 0.25~0.55 | 0.30~1.25 | 0.12~0.65 | a,c |
Q265NQL2 | — | ≤0.12 | 0.10~0.40 | 0.20~0.50 | 0.07~0.12 | ≤0.030 | 0.25~0.45 | 0.30~0.65 | 0.25~0.50 | a,b |
Q310NQL2 | — | ≤0.12 | 0.25~0.75 | 0.20~0.50 | 0.07~0.12 | ≤0.030 | 0.25~0.50 | 0.30~1.25 | ≤0.65 | a,b |
Q245NYR1 | — | ≤0.14 | ≤0.55 | ≤1.50 | ≤0.030 | ≤0.030 | 0.15~0.40 | 0.80~1.30 | M:≤0.30 | |
Q325NYR1 | — | ≤0.14 | ≤0.55 | ≤1.50 | ≤0.030 | ≤0.030 | — | 0.80~1.30 | — | Nb:≤0.10 |
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