公称直径mm
zui小平均内径
zui小内层壁厚
zui小压层厚度
zui大螺距
zui小钢带厚度
zui小防腐层厚度
300
294
2.5
4.0
55
0.4
2.5
400
392
3.0
4.5
65
0.4
2.5
500
490
3.0
5.0
75
0.5
3.0
600
588
3.0
5.5
110
0.5
3.0
700
673
3.0
5.5
110
0.5
3.5
800
785
3.0
6.5
125
0.7
3.5
900
885
3.0
6.5
145
0.7
3.5
1000
985
3.0
7.0
150
0.7
3.5
1100
1085
3.0
7.0
175
0.7
3.5
1200
1185
4.0
7.0
180
0.7
3.5
1300
1285
4.0
7.0
190
1.0
4.0
1400
1385
4.0
7.0
200
1.0
4.0
1500
1485
4.5
7.0
210
1.0
4.0
1600
1585
4.5
7.0
210
1.0
4.0
1800
1785
4.5
7.0
210
1.0
4.0
2000
1985
5.0
8.0
220
1.0
4.0
2200
2185
5.5
8.0
220
1.0
4.0
2400
2385
6.0
8.0
220
1.0
4.0