標準 | 牌號 | 抗拉強度(MPa) | 屈服強度(MPa) | 伸長率(%) | |
縱向 | 橫向 | ||||
ASTM A333 | Grade 1 | ≥380 | ≥205 | ≥35 | ≥25 |
Grade 3 | ≥450 | ≥240 | ≥30 | ≥20 | |
Grade 4 | ≥415 | ≥240 | ≥30 | ≥16.5 | |
Grade 6 | ≥415 | ≥240 | ≥30 | ≥16.5 | |
Grade 7 | ≥450 | ≥240 | ≥30 | ≥22 | |
Grade 8 | ≥690 | ≥515 | ≥22 | ||
Grade 9 | ≥435 | ≥315 | ≥28 | ||
Grade 10 | ≥550 | ≥450 | ≥22 | ||
Grade 11 | ≥450 | ≥240 | ≥18 |