標(biāo)準(zhǔn) | 牌號(hào) | 化學(xué)成分(%) | ||||||||||
C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Al | ||
ASTM A333 | Grade 1 | ≤0.30 | 0.40~1.06 | ≤0.025 | ≤0.025 | |||||||
Grade 3 | ≤0.19 | 0.18~0.37 | 0.31~0.64 | ≤0.025 | ≤0.025 | 3.18~3.82 | ||||||
Grade 4 | ≤0.12 | 0.18~0.37 | 0.50~1.05 | ≤0.025 | ≤0.025 | 0.44~1.01 | 0.47~0.98 | 0.40~0.75 | 0.04~0.30 | |||
Grade 6 | ≤0.30 | ≥0.10 | 0.29~1.06 | ≤0.025 | ≤0.025 | |||||||
Grade 7 | ≤0.19 | 0.13~0.32 | ≤0.90 | ≤0.025 | ≤0.025 | 2.03~2.57 | ||||||
Grade 8 | ≤0.13 | 0.13~0.32 | ≤0.90 | ≤0.025 | ≤0.025 | 8.40~9.60 | ||||||
Grade 9 | ≤0.20 | 0.40~1.06 | ≤0.025 | ≤0.025 | 1.60~2.24 | 0.75~1.25 | ||||||
Grade 10 | ≤0.20 | 0.10~0.35 | 1.15~1.50 | ≤0.03 | ≤0.015 | ≤0.15 | ≤0.25 | ≤0.015 | ≤0.50 | ≤0.12 | ≤0.06 | |
Grade 11 | ≤0.10 | ≤0.35 | ≤0.6 | ≤0.025 | ≤0.025 | ≤0.50 | 35.0~37.0 | ≤0.50 |