ASTM A334Sehlopha sa 6ke matla a phahameng, mocheso o tlase oa mocheso oa carbon steel pipe o nang le carbon content ea 0.30%, manganese content ea 0.29-1.06%, bonyane ba matla a 415Mpa (60ksi), le ho hlahisa matla a 240Mp (35ksi).
E sebelisoa haholo-holo lefapheng la lisebelisoa tsa khase ea tlhaho, boenjiniere ba polar, le theknoloji ea sehatsetsi, e ikamahanyang le maemo a mocheso o tlase haholo.
ASTM A334ke lintlha tse tloaelehileng bakeng sa li-tubing tsa tšepe tse se nang seamless le tse cheselitsoeng bakeng sa lisebelisoa tsa cryogenic.
Ho na le limaraka tse 'maloa ho fihlela litlhoko tse fapaneng.
Kereiti 1, Grade 3, Grade 6, Grade 7, Grade 8, Grade 9, and Grade 11.
Sehlopha sa 1'me Kereiti ea 6 ka bobeli ke lipeipi tsa tšepe ea carbon.
phala ea tšepe ea ASTM A334 ea Sehlopha sa 6 e ka hlahisoa ka mekhoa e se nang moeli kapa e cheselitsoeng.
Mekhoa ea ho cheselletsa e kenyelletsa mekhoa e sa tšoaneng e kangtjheseletsa e hanyetsanang le motlakase (ERW)letjheseletsa e ka tlasa metsi (SAW).
Ka tlase, ke mokhoa oa tlhahiso eaLongitudinal Submerged Arc Welding (LSAW).
Joaloka moetsi oa li-tubes tsa tšepe tse cheselitsoeng, re khona ho fihlela litlhoko tse ikhethang tsa bareki ba rona ba fapaneng, re fana ka mefuta e fapaneng ea likhetho tsa lihlahisoa ho netefatsa ts'ebetso e ntle le boleng ba kopo e 'ngoe le e 'ngoe.
Karolo e le 'ngoe ea weld ea LSAW tubing e ntlafatsa haholo matla a kakaretso a tube, e leng se lumellang ho mamella likhatello tse phahameng.
Ho feta moo, e loketse hantle bakeng sa tlhahiso ea phala ea tšepe e bophara bo boholo le marako a teteaneng e fihlelang litlhoko tsa ASTM A334 Kereiti ea 6 litsamaisong tse kholo tsa indasteri le phano ea matla, joalo ka kahong ea khase e kholo ea tlhaho e nang le mokelikeli. LNG) lisebelisoa.
Ka nako e ts'oanang, taolo e nepahetseng ea litekanyo e netefatsa bophara ba liphaephe tse tsitsitseng le botenya ba marako bakeng sa ts'epo e ntlafalitsoeng ea khokahano le thibelo ea ho lutla lits'ebetsong tsa liphaephe.
Iketsetse tloaelo ka ho futhumatsa mochesong o lekanang oa 1550 ° F [845 °C] 'me u pholile moeeng kapa ka kamoreng e pholileng ea sebōpi se laoloang ke sepakapaka.
Haeba ho hlokahala, ho nosetsa, ho tla hlokahala ho buisana.
Sebopeho sa lik'hemik'hale sa phala ea tšepe ea ASTM A334 Grade 6 se etselitsoe ho netefatsa thepa e ntle ea mochine ka mocheso o tlase le boima bo lekaneng bakeng sa tšebeletso e ka tšeptjoang tlas'a maemo a feteletseng.
| Kereiti | C (Khabone) | Mn (Manganese) | P (Phosphorus) | S (Sebabole) | Si (Silikone) |
| Sehlopha sa 6 | boholo 0.30 | 0.29-1.06 | boholo ba 0.025 | boholo ba 0.025 | mets 0.10 |
| Bakeng sa phokotso e 'ngoe le e 'ngoe ea 0.01% ea carbon ka tlase ho 0.30%, keketseho ea 0.05 % manganese ka holimo ho 1.06 % e tla lumelloa ho fihla ho 1.35% ea manganese. | |||||
Bakeng sa litšepe tsa Kereiti ea 1 kapa Kereiti ea 6, ha ho lumelloe ho fana ka limaraka tsa alloying bakeng sa likarolo tse ling ntle le tse hlokoang ka mokhoa o hlakileng.Leha ho le joalo, e lumelloa ho eketsa lintlha tse hlokahalang bakeng sa deoxidation ea tšepe.
Liteko tsa tšusumetso holim'a phaephe ea tšepe ea Kereiti ea 6 li etsoa ho -45°C [-50°F] e le mokhoa oa ho netefatsa ho tiea le ho hanyetsa ha thepa libakeng tsa mocheso o tlase haholo.
Teko e ile ea etsoa ka ho khetha matla a ts'usumetso a loketseng ho latela botenya ba lerako la phala ea tšepe.
Lipalo tse baliloeng tsa bonyane ba bolelele ba 1/32 in.[0.80 mm] phokotseho ea botenya ba lebota.
| Kereiti | Rockwell | Brinell |
| ASTM A334 Sehlopha sa 6 | B90 | 190 |
Peipi e 'ngoe le e' ngoe e tla lekoa ka mokhoa o sa senyeheng ka motlakase kapa ka metsi ho latela Specification A1016/A1016M.
Ntle le ha ho boletsoe ka tsela e 'ngoe taelong ea theko, mofuta oa teko e tla sebelisoa e tla ba khetho ea moetsi.
Teko e bataletseng
Tlhahlobo ea Flare (Li-Tubes tse Seamless)
Teko ea Flange (Li-Welded Tubes)
Reverse Flattening Test
1. Mehaho ea Liquefied Natural Gas (LNG).: Ka lebaka la thepa ea eona e babatsehang ea mocheso o tlaase, pipe ea tšepe ea Sehlopha sa 6 e sebelisoa haholo ho hlahisa LNG, polokelo le lisebelisoa tsa lipalangoang.Mehaho ena e hloka lisebelisoa tse bolokang matla a phahameng le boima bo botle ka mocheso o tlase haholo.
2. Litsamaiso tsa lipalangoang tsa oli le khase: e sebelisetsoang ho tsamaisa li-hydrocarbon tse metsi kapa tsa gaseous, tse kang liquefied petroleum gas (LPG) le maro a mang a mocheso o tlase sebakeng sa mocheso o tlase.
3. Theknoloji ea sehatsetsing le lisebelisoa tsa polokelo tse batang: Sena se sebetsa le libakeng tse ling tsa theknoloji ea lihatsetsi, joalo ka litsamaiso tsa polokelo ea serame le serame ha ho etsoa lijo le lits'ebetso tse ling tsa lik'hemik'hale tse hlokang ts'ebetso ea mocheso o tlase.
4. Polar engineering: Mererong ea boenjiniere libakeng tsa polar, joalo ka liteishene tsa lipatlisiso tsa mahlale Arctic kapa Antarctica, li sebelisetsoa ho aha lits'ebetso le meaho e tsitsitseng le e tšepahalang ea lipalangoang tse tlamehang ho mamella mocheso o batang o feteletseng le maemo a thata a tikoloho.
5. Mekhoa ea ho futhumatsa moea le lisebelisoa tsa mocheso: E boetse e sebelisoa ka tloaelo lits'ebetsong tse kholo tsa moea le lisebelisoa tsa mocheso, tse hlokang ho sebetsa hantle ka mocheso o tlase ho netefatsa ts'ebetso ea tsamaiso le polokeho.
6. Boenjiniere ba matla le liteishene tsa motlakase: Mererong e khethehileng ea boenjiniere ba matla, joalo ka mefuta e itseng ea liteishene tsa motlakase, li-tubes tsa tšepe tsa Kereiti ea 6 li ka sebelisoa ho sebetsana le maro kapa likhase ka mocheso o tlase ho netefatsa ts'ebetso e bolokehileng le e sebetsang ea sistimi.
EN 10216-4:P265NL: Haholo-holo e sebelisoa bakeng sa likepe tsa khatello ea cryogenic le lisebelisoa tsa liphaephe tsa cryogenic, li na le boima bo botle le matla 'me li loketse ho sebelisoa libakeng tsa cryogenic.
DIN 17173:TTSt41N: E etselitsoe lits'ebetso tsa mocheso o tlase, e fana ka ts'ebetso e ntle haholo ea mocheso o tlase 'me e sebelisoa hangata ho lisebelisoa le liphaephe tse hlokang maemo a ts'ebetso a tlase haholo.
JIS G3460:STPL46: E sebelisoa bakeng sa litsamaiso tsa liphaephe tsa liphaephe libakeng tsa mocheso o tlase, tse khonang ho mamella litlamorao tse itseng tsa mocheso o tlase le likhatello.
GB/T 18984:09Mn2V: Thepa ena e khethehile ha ho etsoa li-tubes tsa tšepe tse se nang seam bakeng sa ho sebelisoa libakeng tse nang le mocheso o tlase, tse nang le boima bo botle ba mocheso o tlase le ho hanyetsa crack.
Ha u khetha lisebelisoa tsena tse lekanang, ke habohlokoa ho etsa bonnete ba hore metsoako ea bona ea lik'hemik'hale le thepa ea mechine e finyella litekanyetso tse hlokahalang tsa kopo le litlhoko tsa ts'ebetso.
Litekanyetso tsena li lokela ho bapisoa ka botlalo mme lits'ebetso tse ling tsa tlhahlobo le setifikeiti li ka hlokoa ho netefatsa ho nepahala le ts'ebetso ea thepa.
Ho tloha ha e thehoa ka 2014, Botop Steel e se e le mofani ea ka sehloohong oaphala ea tšepe ea carbonChina Leboea, e tsebahalang ka litšebeletso tse ntle haholo, lihlahisoa tsa boleng bo holimo, le litharollo tse felletseng.Khampani e fana ka mefuta e sa tšoaneng ea liphaephe tsa tšepe ea carbon le lihlahisoa tse amanang le tsona, tse kenyelletsang seamless, ERW, LSAW, le phala ea tšepe ea SSAW, hammoho le lethathamo le feletseng la liphaephe le li-flanges.
Lihlahisoa tsa eona tse khethehileng li boetse li kenyelletsa li-alloys tsa boemo bo phahameng le litšepe tse sa hloekang tsa austenitic, tse etselitsoeng ho finyella litlhoko tsa merero e fapaneng ea liphaephe.
