单位：Kg/m
壁 厚
外 径
3
3.5
4
4.5
5
5.5
6
32
2.146
2.460
2.762
3.052
3.329
3.594
3.847
38
2.589
2.978
3.354
3.718
4.069
4.408
4.735
42
2.885
3.323
3.749
4.162
4.562
4.951
5.327
45
3.107
3.582
4.044
4.495
4.932
5.358
5.771
50
3.477
4.014
4.538
5.049
5.549
6.036
6.511
54
3.773
4.359
5.493
6.042
6.578
7.103
57
3.995
4.618
5.228
5.826
6.412
6.985
7.546
60
4.217
4.877
5.524
6.159
6.782
7.392
7.990
63.5
4.476
5.179
5.869
6.548
7.214
7.867
8.508
68
4.809
5.567
6.313
7.047
7.768
8.477
9.174
70
4.957
5.740
7.269
8.015
8.749
9.470
73
5.999
6.807
7.602
8.385
9.156
9.914
76
5.401
6.258
7.935
8.755
9.563
10.358
89
6.363
7.380
9.378
11.326
12.281
108
9.020
10.259
11.486
12.701
13.903
15.093
133
11.178
12.725
14.261
15.783
17.294
18.792
159
13.422
15.290
17.146
18.989
20.821
22.639
219
18.601
21.209
23.805
26.388
28.959
31.517
273
23.262
26.536
29.797
33.046
36.283
39.508
325
27.750
31.665
35.568
39.458
43.337
47.202
355
38.897
43.158
47.406
51.641
377
41.339
45.871
50.390
54.897
426
46.777
51.913
57.036
62.147
450
480
530
630
