公称内径 | *小平均内径 | *小内层壁厚 | *小层压壁厚 | *大螺距 |
300 | 294 | 2.50 | 4.00 | 55.0 |
400 | 392 | 3.00 | 4.50 | 65.0 |
500 | 490 | 3.50 | 5.00 | 75.0 |
600 | 588 | 4.00 | 6.00 | 85.0 |
700 | 673 | 4.00 | 6.00 | 110.0 |
800 | 785 | 4.50 | 6.50 | 120.0 |
900 | 885 | 5.00 | 7.00 | 135.0 |
1000 | 985 | 5.00 | 7.00 | 150.0 |
1100 | 1085 | 5.00 | 7.00 | 165.0 |
1200 | 1185 | 5.00 | 7.00 | 180.0 |
1300 | 1285 | 5.00 | 7.00 | 190.0 |
1400 | 1385 | 5.00 | 7.00 | 200.0 |
1500 | 1485 | 5.00 | 7.00 | 210.0 |
1600 | 1585 | 5.00 | 7.00 | 210.0 |
1800 | 1785 | 5.00 | 7.00 | 210.0 |
2000 | 1985 | 6.00 | 8.00 | 210.0 |
项目 | 指标 | |
公称环刚度KN/m2 | SN8 | 8.0 |
SN10 | 10 | |
SN12.5 | 12.5 | |
SN16 | 16.0 | |
冲击性%≤ | 10 | |
剥离强度(20±5℃)N/cm≥ | 70 | |
环柔性 | 无分层、无开裂 | |
烘箱试验 | 无分层、无开裂 | |
溶缝和焊缝的拉伸强度N≥ | 1460 | |
蠕变比率≤ | 2 |