Ko te ASTM A 53 e hipoki ana i te paipa maitai me te paipa maitai me te matotoru o te pakitara.Ko te ahua o te mata he pango me te paipa ASTM A53 (e kiia ana ko te ASME SA53 paipa) mo nga tono miihini me te pehanga, he pai hoki mo nga whakamahinga noa i roto i te mamaoa, te wai, te hau me nga raina hau.He pai mo te whakapiri me te hanga i nga mahi e pa ana ki te kowiri, te piko, me te flanging.A53 ngongo rino korekore he rauemi o te putorino maitai o Amerika.Ko te tukanga whakaputa matua o nga ngongo maitai A53 ka wehea ki te tuhi makariri me te huri wera.Ko te rereketanga nui i waenga i nga mea e rua ko te mahi hanga o nga putorino rino maeke maeke he tino uaua atu i tera o te hurihuri wera, a he poto ake te ahua o te putorino hiko hikoi makariri i tera o te hurihuri wera.Ko nga putorino waro tuitui i hurihia, he iti ake te matotoru o te pakitara o te putorino waro tuitui i te matao-hurihia, he iti ake i tera o nga putorino waro tuitui wera, engari he maama ake te ahua o te mata.He ahua taratara te mata o te ngongo maitai waro wera.Ko te tukanga whakaputa matua ngongo porowhita → whakawera → wero → toru-roll skew okeoke, okeoke tonu, tangohanga ranei → tango ngongo → rahi (te whakaiti diameter ranei) → whakamatao → whakatikatika → whakamātautau wai (te kitea koha ranei) → tohu → whare pukapuka whakauru.
| ASTM A53/ASME SA53 | Momo S | Momo E | Momo F | |||
| (kore) | (aatete-hiko kua paiherea) | (pupa paipa oumu) | ||||
| Kōeke A | Kōeke B | Kōeke A | Kōeke B | Kōeke A | ||
| Waro morahi.% | 0.25 | 0.30* | 0.25 | 0.30* | 0.3 | |
| konupora % | 0.95 | 1.2 | 0.95 | 1.2 | 1.2 | |
| Phosphorous, max.% | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | |
| Whanariki, max.% | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | |
| Konohi, morahi% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| Nickel, teitei.% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| Chromium, teitei.% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| Molybdenum, max.% | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 | |
| Vanadium, max.% | 0.08 | 0.08 | 0.08 | 0.08 | ||
| *Mo ia whakahekenga i raro iho i te 0.01% i raro i te morahi waro kua tohua, ko te pikinga o te 0.06% konupora ki runga ake i te morahi kua tohua ka whakaaetia kia eke ki te 1.65% (kaore e pa ki te SA53). | ||||||
| Nga Whakaritenga Tensile | Kore me te Hiko-atete-paiherea | Tonu-Welded | |
| Kōeke A | Kōeke B | ||
| Te Kaha Tensile, min., psi | 48,000 | 60,000 | 45,000 |
| Te Kaha Tuku, min., psi | 30,000 | 35,000 | 25,000 |
1. Ko te tukanga whakaputa matua o te putorino maitai wera-hurihia (te mahi tirotiro matua):
Te whakarite me te tirotiro i te ngongo → whakawera parakore ngongo → werohia → te huri ngongo → te whakamahana maitai → te whakatika (whakaitihia) te diameter → te maimoatanga wera △ → te whakatika ngongo kua oti → te whakaoti → te tirotiro (kaore i te kino, te tinana me te matū, te tirotiro o Taiwan) → te whare putunga
2. Ko te tukanga whakaputa matua o nga putorino rino kore-maeke (unu)
Te whakarite pire → whakahinuhinu pickling → hurihuri makariri (tuhi) → maimoatanga wera → whakatikatika → whakaoti → tirotiro
