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所屬分類：鋼管

發(fā)布時間：2022-09-26 11:41

鋼管壁厚分級表（GB標準）

公

稱

直

徑

DN

外徑(D)

公稱壁厚

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

180

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

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

11.0

-

-

-

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

550

600

355.6

406.4

457.0

508.0

559

610

377

426

478

529

-

630

4.0

4.0

4.0

5.0

5.0

5.6

5.0

5.0

5.0

5.6

5.6

6.3

-

-

-

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

10.0

10.0

11.0

12.5

14.2

16.0

-

17.5

16.0

17.5

20.0

20.0

-

-

13.0

13.0

13.0

13.0

13.0

13.0

20.0

22.2

25.0

28.0

30.0

32.0

25.8

28.5

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

-

-

650

700

750

660

711

762

-

720

-

-

-

-

-

-

-

-

-

-

8.0

8.0

8.0

-

-

-

-

-

-

10.0

10.0

10.0

-

-

-

-

-

-

13.0

13.0

13.0

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

800

850

900

813

864

914

820

-

920

-

-

-

-

-

-

-

-

-

8.0

8.0

8.0

-

-

-

-

-

-

10.0

10.0

10.0

-

-

-

-

-

-

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

1219

1120

-

1220

-

-

-

-

-

-

-

-

-

8.0

8.0

8.0

-

-

-

-

-

-

10.0

10.0

10.0

-

-

-

-

-

-

13.0

13.0

13.0

-

-

-

-

-

-

-

-

-

-

-

-

-

-