壁厚表 GB 12459、GB/T 13401
壁厚表 GB 12459、GB/T 13401
Wall Thicknesses Schedule
公称通径
NPS DN
外径
Outside Diameter D
公称壁厚 T
Nominal Wall Thickness
A系列
B系列
Sch
5s
Sch
10s
Sch
20s
LG
Sch
20
Sch
30
STD
Sch
40
Sch
60
Xs
Sch
80
Sch
100
Sch
120
Sch
140
Sch
160
15
20
25
21.3
26.9
33.7
18
25
32
1.6
1.6
1.6
2.1
2.1
2.8
2.6
2.6
3.2








2.9
2.9
3.2




3.6
4.0
4.5






4.5
5.6
6.3
32
40
50
42.4
48.3
60.3
38
45
57
1.6
1.6
1.6
2.8
2.8
2.8
3.2
3.2
3.6




3.2




3.6
3.6
4.0




5.0
5.0
5.6






6.3
7.1
8.8
65
80
90
76.1(73)
88.9
101.6
76
89
2.0
2.0
2.0
3.0
3.0
3.0
3.6
4.0
4.0


4.5
4.5
4.5




5.0
5.6
5.6




7.1
8.0
8.0






10.0
11.0
12.5
100
125
150
114.3
139.7
168.3
108
133
159
2.0
2.9
2.9
3.0
3.4
3.4
4.0
5.0
5.0


5.0
5.0
5.6




5.9
6.3
7.1




8.8
10.0
11.1


11.0
12.5
14.2


14.2
16.0
17.5
200
250
300
219.1
273.0
323.9
219
273
325
2.9
3.6
4.0
4.0
4.0
4.5
6.3
6.3
6.3


6.3
6.3
6.3
7.1
8.0
8.8


8.0
8.8
10.0
10.0
12.5
14.2


12.5
16.0
17.5
16.0
17.5
22.2
17.5
22.2
25.0
20.0
25.0
28.0
22.2
28.0
32.0
350
400
450
500
355.6
406.4
457.2
508.0
377
426
478
529
4.0
4.0
4.0
5.0
5.0
5.0
5.0
5.6
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
10.0
10.0
10.0
11.0
12.5
10.0
10.0
10.0
10.0
11.0
12.5
14.2
16.0
16.0
17.5
20.0
20.0
13.0
13.0
13.0
13.0
20.0
22.2
25.0
28.0
25.8
28.0
30.0
32.0
28.0
30.0
36.0
40.0
32.0
36.0
40.0
45.0
36.0
40.0
45.0
50.0
550
600
650
700
559
610
660
711

630

720
5.0
5.6

5.6
6.3




8.0
8.0
8.0
8.0






10.0
10.0
10.0
10.0

17.5




13.0
13.0
13.0
13.0
30.0
32.0
                
750
800
850
900
762
813
864
914

820

920









8.0
8.0
8.0
8.0






10.0
10.0
10.0
10.0






13.0
13.0
13.0
13.0
   
950
1000
1050
965
1016
1067

1020






8.0
8.0
8.0




10.0
10.0
10.0




13.0
13.0
13.0
1100
1150
1200
1118
1168
1220
1120

1220






8.0
8.0
8.0




10.0
10.0
10.0




13.0
13.0
13.0
注:1、sch5s、10s、20s用于不锈钢管件。
    2、GB 12459 为无缝对焊管件标准,GB/T 13401为钢板制对焊管件标准。
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