Ngā hononga paipa ASTM A234 WPB me WPC tae atu ki ngā tuke, te tī, me ngā whakaiti
Te Hanganga Matū o te ASTM A234 WPB me te WPC
| Huānga | Ihirangi, % | |
| ASTM A234 WPB | ASTM A234 WPC | |
| Waro [C] | ≤0.30 | ≤0.35 |
| Manganēhi [Mn] | 0.29-1.06 | 0.29-1.06 |
| Whēkau [P] | ≤0.050 | ≤0.050 |
| Whāwhā [S] | ≤0.058 | ≤0.058 |
| Hiraka [Si] | ≥0.10 | ≥0.10 |
| Konukōmiuma [Kr] | ≤0.40 | ≤0.40 |
| Molibdenuma [Mo] | ≤0.15 | ≤0.15 |
| Nikara [Ni] | ≤0.40 | ≤0.40 |
| Parahi [Cu] | ≤0.40 | ≤0.40 |
| Vanadium [V] | ≤0.08 | ≤0.08 |
*Kaua te Waro ōrite [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] e neke atu i te 0.50, ā, me pūrongo ki te MTC.
Ngā Āhuatanga Hangarau o te ASTM A234 WPB me te WPC
| Ngā Tohu ASTM A234 | Kaha Kume, min. | Kaha Tukunga, min. | % Whakaroa, min | |||
| ksi | MPa | ksi | MPa | Roa | Whakapae | |
| WPB | 60 | 415 | 35 | 240 | 22 | 14 |
| WPC | 70 | 485 | 40 | 275 | 22 | 14 |
*1. Ko ngā hononga paipa WPB me WPC i hangaia mai i ngā pereti me whai roa ake i te 17%.
*2. Ki te kore e hiahiatia, kāore e hiahiatia kia ripoatatia te uara pakeke.
Hanga
Ka taea te hanga i ngā hononga paipa maitai waro ASTM A234 mai i ngā paipa kore hononga, ngā paipa whakarewa, ngā pereti rānei mā te hanga i ngā mahi pēhi, wero, whakaputa, piko, whakarewa hanumi, miihini, mā te whakakotahitanga rānei o ēnei mahi e rua, neke atu rānei. Ko ngā whakarewa katoa tae atu ki ngā whakarewa i roto i ngā hua ngongo i hangaia ai ngā hononga me hanga kia rite ki te Wāhanga IX o ASME. Me mahi te maimoatanga wera i muri i te whakarewa i te 1100 ki te 1250°F [595 ki te 675°C] me te whakamātautau ira-X i muri i te tukanga whakarewa.