低溫用無縫鋼管和焊接鋼管標(biāo)準(zhǔn)沖擊溫度、力學(xué)性能、化學(xué)成分
STM A333——Seamless and Welded Steel Pipe for Low-Temperature Service
主要生產(chǎn)鋼管牌號(hào)
Grade 1, Grade 3, Grade 4, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11
沖擊溫度
級(jí)別 最低沖擊試驗(yàn)溫度
℉ ℃
Grade 1 -50 -45
Grade 3 -150 -100
Grade 4 -150 -100
Grade 6 -50 -45
Grade 7 -100 -75
Grade 8 -320 -195
Grade 9 -100 -75
Grade 10 -75 -60
力學(xué)性能
標(biāo)準(zhǔn) 牌號(hào) 抗拉強(qiáng)度(MPa) 屈服強(qiáng)度(MPa) 伸長(zhǎng)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
化學(xué)成分
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
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