
L245管線管,規格是8-1240×1-200mm,標準是API SPEC,主要用于天然氣工業中的氣、水、油輸送。
規格
管線管規格:8-1240×1-200mm、美標規格:1/4〃-28〃,13.7-711.2mm
標準
執行標準: API SPEC 5L GB/T9711.1 GB/T9711.2
尺寸公差
尺寸公差
鋼管種類
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鋼管外徑(D)
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鋼管壁厚(S)
|
|
|
管體
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鋼管外徑 (mm)
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允許偏差(mm)
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鋼管外徑(mm)
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允許偏差(mm)
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≥60.3且S<20
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±0.75%
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≤73.0
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+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
|
力學性能
標準
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牌號
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抗拉強度(MPa)
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屈服強度(MPa)
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屈強比
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伸長率(%)
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0℃沖擊功
Akv(J)
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熱處理狀態
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API SPEC 5L
GB/T9711.2
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B
|
≥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
|
290~440
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≤0.80
|
21
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≥40
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正火
|
|
X52
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≥460
|
360~510
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≤0.85
|
20
|
≥40
|
正火
|
|
X60
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≥520
|
415~565
|
≤0.85
|
18
|
≥40
|
正火
|
|
X65
|
≥535
|
450~570
|
≤0.90
|
18
|
≥40
|
淬火+回火
|
|
X70
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≥570
|
485~605
|
≤0.90
|
18
|
≥40
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淬火+回火
|
|
化學成分
標準
|
牌號
|
化學成分(%)
|
CEV(%)
|
|
|
|
|
|
|
|
C
|
Si
|
Mn
|
P
|
S
|
V
|
Nb
|
Ti
|
|
|
|
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
|
-
|
-
|
-
|
≤0.42
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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
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≤0.04
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≤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
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≤0.10
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≤0.05
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≤0.04
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≤0.45
|
|
X60
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≤0.21
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≤0.45
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≤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
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≤0.04
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協議
|
|
X65
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≤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
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≤0.06
|
≤0.05
|
≤0.06
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≤0.45
|
|
X70
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≤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
|
|
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經協商Mo≤0.35%
美國石油學會標準(API SPEC 5L )管線管規格表
名義尺寸
Nominal Size
|
外徑
Outside Diameter
|
壁厚
Wall Thickness
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平端管米重
Plain-end Weight
|
|
|
|
inch
|
mm
|
inch
|
mm
|
lb/ft
|
kg/m
|
|
0.405
|
0.405
|
10.29
|
0.095
|
2.4
|
0.31
|
0.47
|
0.54
|
0.54
|
13.72
|
0.088
|
2.2
|
0.43
|
0.62
|
0.54
|
13.72
|
0.119
|
3.0
|
0.54
|
0.79
|
|
0.675
|
0.675
|
17.15
|
0.091
|
2.3
|
0.57
|
0.84
|
0.675
|
17.15
|
0.126
|
3.2
|
0.74
|
1.10
|
|
0.84
|
0.84
|
21.34
|
0.109
|
2.8
|
0.85
|
1.28
|
0.84
|
21.34
|
0.147
|
3.7
|
1.09
|
1.61
|
|
1.05
|
1.05
|
26.67
|
0.113
|
2.9
|
1.13
|
1.70
|
1.05
|
26.67
|
0.154
|
3.9
|
1.48
|
2.19
|
|
1.315
|
1.315
|
33.4
|
0.133
|
3.4
|
1.68
|
2.52
|
1.315
|
33.4
|
0.179
|
4.6
|
2.17
|
3.21
|
|
1.660
|
1.660
|
42.2
|
0.145
|
3.7
|
2.72
|
3.43
|
1.660
|
42.2
|
0.191
|
4.9
|
3.00
|
4.51
|
|
1.900
|
1.660
|
42.2
|
0.382
|
9.7
|
5.22
|
7.77
|
1.900
|
48.3
|
0.145
|
3.7
|
2.72
|
4.07
|
|
1.900
|
48.3
|
0.200
|
5.1
|
3.63
|
5.43
|
|
1.900
|
48.3
|
0.400
|
10.2
|
6.41
|
9.58
|
|
2 3/8
|
2.375
|
60.3
|
0.109
|
2.8
|
2.64
|
3.97
|
2.375
|
60.3
|
0.125
|
3.2
|
3.00
|
4.51
|
|
2.375
|
60.3
|
0.141
|
3.6
|
6.36
|
5.03
|
|