l360管線管產(chǎn)品性能與元素
力學(xué)性能：
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標(biāo)準(zhǔn)
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牌號(hào)
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抗拉強(qiáng)度（MPa）
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屈服強(qiáng)度（MPa）
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屈強(qiáng)比
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伸長(zhǎng)率（%）
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0℃沖擊功
Akv（J）
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熱處理狀態(tài)
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API SPEC 5L
GB/T9711.2
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B
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≥415
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245～440
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≤0.80
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22
|
≥40
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正火
|
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X42
|
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≥415
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290～440
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≤0.80
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21
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≥40
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正火
|
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X52
|
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≥460
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360～510
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≤0.85
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20
|
≥40
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正火
|
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X60
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≥520
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415～565
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≤0.85
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18
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≥40
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正火
|
|
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X65
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≥535
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450～570
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≤0.90
|
18
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≥40
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淬火+回火
|
|
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X70
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≥570
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485～605
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≤0.90
|
18
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≥40
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淬火+回火
|
|
化學(xué)成分:
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標(biāo)準(zhǔn)
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牌號(hào)
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化學(xué)成分（%）
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CEV（%）
|
|
|
|
|
|
|
|
| |
C
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Si
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Mn
|
P
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S
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V
|
Nb
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Ti
|
|
|
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API SPEC 5L
GB/T9711.2
|
B
|
≤0.16
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≤0.40
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≤1.10
|
≤0.020
|
≤0.010
|
－
|
－
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－
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≤0.42
|
|
X42
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≤0.17
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≤0.40
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≤1.20
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≤0.020
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≤0.010
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≤0.05
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≤0.05
|
≤0.04
|
≤0.42
|
|
|
X52
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≤0.20
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≤0.45
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≤1.60
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≤0.020
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≤0.010
|
≤0.10
|
≤0.05
|
≤0.04
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≤0.45
|
|
|
X60
|
≤0.21
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≤0.45
|
≤1.60
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≤0.020
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≤0.010
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≤0.15
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≤0.05
|
≤0.04
|
協(xié)議
|
|
|
X65
|
≤0.16
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≤0.45
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≤1.60
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≤0.020
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≤0.010
|
≤0.06
|
≤0.05
|
≤0.06
|
≤0.45
|
|
|
X70
|
≤0.16
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≤0.45
|
≤1.70
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≤0.020
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≤0.010
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≤0.06
|
≤0.05
|
≤0.06
|
≤0.45
|
|
注： 1．0.015%≤Altot<0.06%；N≤0.012%；Al/N≥2/1；Cu≤0.25%；Ni≤0.30%；Cr≤0.30%；Mo≤0.10% 2．V+Nb+Ti≤0.15 3．X60、X65、X70經(jīng)協(xié)商Mo≤0.35% 美國(guó)石油學(xué)會(huì)標(biāo)準(zhǔn)(API SPEC 5L )管線管規(guī)格表
