Kāhua | Hangarau | Rauemi | Paerewa | Kōeke | Whakamahinga |
He paipa paipa maitai te Atete Hiko (ERW). | Auautanga Teitei | Carbon Steel | API 5L PSL1&PSL2 | GR.B,X42,X46,X52,X60,X65,X70, etc | Te kawe hinu me te hau |
ASTM A53 | GR.A ,GR.B | Mo te Hanga (Piling) | |||
ASTM A252 | GR.1, GR.2,GR.3 | ||||
BS EN10210 | S275JRH,S275J0H,S355J0H,S355J2H, me etahi atu | ||||
BS EN10219 | S275JRH,S275J0H,S355J0H,S355J2H, me etahi atu | ||||
JIS G3452 | SGP, etc | Te kawe i te wai pehanga iti | |||
JIS G3454 | STPG370,STPG410, aha atu | Te kawe i te wai pehanga teitei | |||
JIS G3456 | STPG370,STPG410,STPG480, etc | paipa maitai pāmahana teitei |
Ko te paipa i whakahaua i raro i tenei whakaritenga mo te ratonga pehanga i te pāmahana teitei o te 350 ℃.
He paipa kore, he paninga pango, he wai wera ranei kua pania (kua whakaritea);
I roto i nga paihere me nga kotaha miro e rua;
Ko nga pito e rua me nga kaitiaki mutunga;
Ko te mutunga o te paipa, ko te mutunga o te bevel(I te wa e hiahiatia ana e te kaihoko me te S≤22mm, ko te pito o te putorino me whakapuru, tohu: 30° (+5°~0°), me te matotoru o te pakitara o te pakiaka kaore i te iti iho i te <2.4 mm.);
Te tohu.
Parenga Whakamutunga Paipa
Te tohu i runga i nga paipa
Te tohu i runga i nga paipa
Koeke me te Hanga Matū (%)
Kōeke | C≤ | Si≤ | Mn | P≤ | S≤ |
STPG370 | 0.25 | 0.35 | 0.30~0.90 | 0.040 | 0.040 |
STPG410 | 0.30 | 0.35 | 0.30~1.00 | 0.040 | 0.040 |
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Nga Taonga Miihini | ||||||
Kōeke | Te kaha tensile | Te kaha tuku | Whakaroa % | |||
N/m㎡ | N/m㎡ | No.11 No.12 ranei nga waahanga whakamatautau | Nama 5 nga waahanga whakamatautau | Nama 4 waahanga whakamatautau | ||
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| Whakapoupou | Whakawhitiwhiti | Whakapoupou | Whakawhitiwhiti | |
STPG370 | 370 min | 215 min | 30 min | 25 min | 28 min | 23 min |
STPG410 | 410 min | 245 min | 25 min | 20 min | 24 min | 19 min |
Te manawanui o OD me WT
Wehewehenga | Whakaaetanga i runga i te OD | Whakaaetanga mo WT | ||
Kua oti te makariri ERW Steel Pipe | 24A raro ranei | +/-0.3mm | I raro i te 3mm
3mm neke atu ranei | +/-0.3mm
+/-10% |
32A neke atu ranei | +/-0.8% |
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Mo nga paipa he 350A te rahi, neke atu ranei, ka whakatauhia te manawanui ki te OD ma te roa o te porowhita.I roto i tenei take, ko te manawanui kia +/-0.5% |