Haina Kaihanga LSAW me SSAW Paihere Paipa
Haina Steel putorino ki te paipa maitai me te paiherea
Ina tata nei i tutaki matou ki etahi patai mo te paipa paipa i te wa e uiuia ana te paipa kore.
E rua nga huarahi mo te paipa paipa. Ko tetahi ko te Wehenga Pewa kua rukuhia (SSAW paipa), ko tetahi ko te whitinga pewa kua rukuhia ki raro (LSAW paipa)
Mo te LSAW, kotahi te paipa paipa tui me te paipa weled tuirua. ka taea e koe te tirotiro i nga pikitia
Tirohanga
Taupānga
Ka whakamahia te nuinga mo nga waahanga kaha me te pehanga, mo nga mahi whanui mo te mamaoa, te wai, te hau me nga paipa hau.
Koeke Matua
GR.A, GR.B
Waahanga matū
| Kōeke | Wae %，≤ | ||||||||
| C | Mn | P | S | CuA | NiA | CrA | MoA | VA | |
| Momo S(paipa korekore) | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Momo E(Atete paipa paiherea) | |||||||||
| GR.A | 0.25B | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| GR.B | 0.30C | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Momo F | |||||||||
| A | 0.30B | 1.20 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
A Ko te tapeke o enei huānga e rima me kaua e nui ake i te 1.00%.
B Mo ia 0.01% te whakaheke i te nui o te waro waro, ka whakaaetia te nui o te konupora ki te 0.06%, engari kaore e taea te neke ake i te 1.35%.
C Ko ia 0.01% te hekenga o te nui o te waro ka taea te whakanui ake i te konupora nui ki te 0.06%, engari kaua e neke ake i te 1.65%.
Taonga Miihini
| tūemi | GR.A | GR.B |
| te kaha riaka, ≥, psi [MPa] Te Kaha Tuku, ≥, psi [MPa] Ine 2in.or 50mm whakaroa | 48 000 [330]30 000 [205]A,B | 60 000 [415]35 000 [240]A,B |
A Ko te whakaroa iti o te roa ine 2in. (50mm) ka whakatauhia e te tauira e whai ake nei:
e=625000(1940)A0.2/U0.9
e = te whakaroa iti o te ine 2in. (50mm), te ōrau i whakaawhiwhia ki te 0.5% tata;
A = Kua tatauhia kia rite ki te diameter o waho o te ngongo ingoa, te whanui ingoa ranei o te tauira tensile me tona matotoru pakitara kua tohua, ka whakaawhiwhia ki te waahi whiti tata o te tauira tensile o 0.01 in.2 (1 mm2), a ka whakatauritea ki te 0.75in.2 (500mm2), ahakoa he iti ake.
U = te kaha tensile iti kua tohua, psi (MPa).
B Mo nga huinga rereke rereke o nga tauira whakamatautau me te kaha iti o te kaha, ka whakaatuhia te roanga iti e hiahiatia ana ki te Ripanga X4.1, ki te Ripanga X4.2 ranei, i runga i tona whaihua.
Whakaritenga Whakamatau
Te whakamatautau tensile, te whakamatautau piko, te whakamatautau hydrostatic, te whakamatautau hiko kore kino o nga weld.
Te kaha tuku
Te Mahinga Whakarato: 2000 Tons Ia Marama mo ia Tohu o te ASTM A53 / A53M-2012 Pipe Steel
Te takai
I roto i nga paihere me te pouaka rakau kaha
Tukunga
7-14 ra mena kei roto i nga taonga, 30-45 nga ra ki te whakaputa
Utu
30% depsoit, 70% L/C, kape B/L ranei 100% L/C i te tirohanga
Taipitopito Hua
Pupu Kohua
GB/T 8162-2008
ASTM A519-2006
BS EN10210-1-2006
ASTM A53/A53M-2012
GB9948-2006
GB6479-2013
