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英制转换对照表
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产品: 浏览次数:105英制转换对照表 
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有效期至: 长期有效
最后更新: 2009-12-23 14:35
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详细信息

公称通径Nominal Pipe Size 外径Outside Diameter 公称壁厚T
Norminal Wall Thickness
NPS DN D SCH5s SCH10s SCH10 SCH20 SHC30 SCH40s STD SCH40 SCH60 SCH80s XS SCH80 SCH100 SCH120 SCH140 SCH160 XXS
1/8
1/4
3/8
6
8
10
10.3
13.7
17.1
’---
---
---
1.24
1.65
1.65
‘---
---
---
’---
---
---
‘---
---
---
1.73
2.24
2.31
1.73
2.24
2.31
1.73
2.24
2.31
‘---
---
---
2.41
3.02
3.20
2.41
3.02
3.20
2.41
3.02
3.20
’---
---
---
‘---
---
---
’---
---
---
‘---
---
---
’---
---
---
1/2
3/4
1
15
20
25
21.3
26.7
33.4
1.65
1.65
1.65
2.11
2.11
2.77
‘---
---
---
’---
---
---
’---
---
---
2.77
2.87
3.38
2.77
2.87
3.38
2.77
2.87
3.38
‘---
---
---
3.73
3.91
4.55
3.73
3.91
4.55
3.73
3.91
4.55
‘---
---
---
’---
---
---
‘---
---
---
4.78
5.56
6.35
7.47
7.82
9.09
11/4
1
1/2
2
32
40
50
42.2
48.3
60.3
1.65
1.65
1.65
2.77
2.77
2.77
‘---
---
---
’---
---
---
‘---
---
---
3.56
3.68
3.91
3.56
3.68
3.91
3.56
3.68
3.91
’---
---
---
4.85
5.08
5.54
4.85
5.08
5.54
4.85
5.08
5.54
’---
---
---
‘---
---
---
’---
---
---
6.35
7.14
8.74
9.70
10.15
11.07
21/2
3
3
1/2
65
80
90
73.0
88.9
101.6
2.11
2.11
2.11
3.05
3.05
3.05
’---
---
---
‘---
---
---
’---
---
---
5.16
5.49
5.74
5.16
5.49
5.74
5.16
5.49
5.74
‘---
---
---
7.01
7.62
8.08
7.01
7.62
8.08
7.01
7.62
8.08
’---
---
---
‘---
---
---
’---
---
---
9.53
11.13
---
14.02
15.24
---
4
5
6
100
125
150
114.3
141.3
168.3
2.11
2.77
2.77
3.05
3.40
3.40
‘---
---
---
’---
---
---
‘---
---
---
6.02
6.55
7.11
6.02
6.55
7.11
6.02
6.55
7.11
‘---
---
---
8.56
9.53
10.97
8.56
9.53
10.97
8.56
9.53
10.97
’---
---
---
11.13
12.70
14.27
‘---
---
---
13.49
15.88
18.26
17.12
19.05
21.95
8
10
12
200
250
300
219.1
273.1
323.9
2.77
3.40
3.96
3.76
4.19
4.57
’---
---
---
6.35
6.35
6.35
7.04
7.80
8.38
8.18
9.27
9.53
8.18
9.27
9.53
8.18
9.27
10.31
10.31
12.70
14.27
12.70
12.70
12.70
12.70
12.70
12.70
12.70
15.09
17.48
15.09
18.26
21.44
18.26
21.44
25.40
20.62
25.40
28.58
23.01
28.58
33.32
22.23
25.40
25.40
14
16
18
350
400
450
355.6
406.4
457.2
3.96
4.19
4.19
4.78
4.78
4.78
6.35
6.35
6.35
7.92
7.92
7.92
9.53
9.53
11.13
‘---
---
---
9.53
9.53
9.53
11.13
12.70
14.27
15.09
16.66
19.05
’---
---
---
12.70
12.70
12.70
19.05
21.44
23.83
23.83
26.19
29.36
27.79
30.96
34.93
31.75
36.53
39.67
35.71
40.49
45.24
‘---
---
---
20
22
24
500
---
600’
508
559
610
4.78
4.78
5.54
5.54
5.54
6.35
6.35
6.35
6.35
9.53
9.53
9.53
12.70
12.70
14.27
’---
---
---
9.53
9.53
9.53
15.09
---
17.48
20.62
22.23
24.61
‘---
---
---
12.70
12.70
12.70
26.19
28.58
30.96
32.54
34.93
38.89
38.10
41.28
46.02
44.45
47.63
52.37
50.01
53.98
59.54
’---
---
---
26
28
30
‘---
700
---
660
711
762
’---
---
6.35
’---
---7.92
7.92
7.92
7.92
12.70
12.70
12.70
’---
15.88
15.88
‘---
---
---
9.53
9.53
9.53
’---
---
---
‘---
---
---
’---
---
---
12.70
12.70
12.70
‘---
---
---
’---
---
---
‘---
---
---
‘---
---
---
’---
---
---
‘---
---
---
32
34
36
‘800
---
900
813
864
914
’---
---
---
‘---
---
---
7.92
7.92
7.92
12.70
12.70
12.70
15.88
15.88
15.88
’---
---
---
9.53
9.53
9.53
17.48
17.48
19.05
‘---
---
---
’---
---
---
12.70
12.70
12.70
‘---
---
---
’---
---
---
‘---
---
---
’---
---
---
‘---
---
---
’---
---
---
38
40
42
‘---
1000
---
965
1016
1067
’---
---
---
‘---
---
---
’---
---
---
’---
---
---
‘---
---
---
‘---
---
---
9.53
9.53
9.53
’---
---
---
‘---
---
---
’---
---
---
12.70
12.70
12.70
‘---
---
---
’---
---
---
‘---
---
---
’---
---
---
’---
---
---
‘---
---
---
44
46
48
‘1100
---
1200
1118
1168
1219
    ’---
---
---
‘---
---
---
’---
---
---
‘---
---
---
9.53
9.53
9.53
  ’---
---
---
‘---
---
---
12.70
12.70
12.70
’---
---
---
‘---
---
---
’---
---
---
‘---
---
---
’---
---
---
‘---
---
-
说明:此钢管标准表公称通径中NPS是指以英制(inch)英寸为基准,DN是以公制(mm)厘米为基准,外径及公称壁厚也以厘米为基准。                                          

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