阶次/壁厚

1.6 mm

1.8 mm

2 mm

2.2 mm

2.4 mm

1

838.62

846.95

855.92

864.63

873.34

2

880.39

889.2

900.37

911.31

921.66

3

1296

1309.7

1324.6

1338.7

1352.4

4

2130.6

2160.3

2199.3

2235.8

2269.7

5

3023.8

3052.9

3085.6

3116.4

3146.6

6

4504.4

4566.6

4629.6

4685.8

4737

7

4521.5

4567.8

4635.5

4694.5

4747.8

8

6160.7

6263.6

6367

6453.2

6525.7

9

6941.3

7018.8

7126.7

7219.8

7286.2

10

6973.9

7060.2

7147

7221.9

7306.5