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