产品展示
Product Show
标准
|
牌号
|
抗拉强度(MPa)
|
屈服强度(MPa)
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屈服比
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伸长率(%)
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0℃冲击功
Akv(J)
|
热处理状态
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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
|
22
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≥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
|
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
|
20
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≥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
|
18
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≥40
|
正火
|
|
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
|
|
X70
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≥570
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485~605
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≤0.90
|
18
|
≥40
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淬火+回火
|
|
标准
|
牌号
|
化学成分(%)
|
CEV(%)
|
|
|
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|
|
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C
|
Si
|
Mn
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P
|
S
|
V
|
Nb
|
Ti
|
|
|
API SPEC 5L
GB/T9711.2
|
B
|
≤0.16
|
≤0.40
|
≤1.10
|
≤0.020
|
≤0.010
|
-
|
-
|
-
|
≤0.42
|
X42
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≤0.17
|
≤0.40
|
≤1.20
|
≤0.020
|
≤0.010
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≤0.05
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≤0.05
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≤0.04
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≤0.42
|
|
X52
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≤0.20
|
≤0.45
|
≤1.60
|
≤0.020
|
≤0.010
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≤0.10
|
≤0.05
|
≤0.04
|
≤0.45
|
|
X60
|
≤0.21
|
≤0.45
|
≤1.60
|
≤0.020
|
≤0.010
|
≤0.15
|
≤0.05
|
≤0.04
|
协议
|
|
X65
|
≤0.16
|
≤0.45
|
≤1.60
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≤0.020
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≤0.010
|
≤0.06
|
≤0.05
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≤0.06
|
≤0.45
|
|
X70
|
≤0.16
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≤0.45
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≤1.70
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≤0.020
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≤0.010
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≤0.06
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≤0.05
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≤0.06
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≤0.45
|
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钢管种类
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钢管外径(D)
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钢管壁厚(S)
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管体
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钢管外径 (mm)
|
允许偏差(mm)
|
钢管外径(mm)
|
允许偏差(mm)
|
≥60.3且S<20
|
±0.75%
|
≤73.0
|
+15%,-12.5%
|
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≥60.3且S≥20
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±1.00%
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>73.0且S<20
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+15%,-12.5%
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|
|
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>73.0且S≥20
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+17.5%,-10
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