销售热线：13376216888
|
偏差等级 |
标准化外径允许偏差 |
|
D1 |
±1.5%，最小±0.75 mm |
|
D2 |
±1.0%。最小±0.50 mm |
|
D3 |
±0.75%．最小±0.30 mm |
|
D4 |
±0.50%。最小±0.10 mm |
无缝钢管标准公称通径和公称壁厚表
无缝钢管标准公称通径与公称壁厚表
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 SCH104 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
11/2
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
31/2 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