ASTM A335 P5, eo hape e tsejoang e le ASME SA335 P5, ke phala ea tšepe e se nang motsoako e tlaase e etselitsoeng tšebeletso ea mocheso o phahameng.
P5 e na le 4.00 ~ 6.00 % chromium le 0.45 ~ 0.65% molybdenum, e fanang ka matla a babatsehang le ts'ebetso tlas'a mocheso o phahameng le likhatello. E sebelisoa haholo lisebelisoa tse kang li-boilers, li-superheaters le li-heaters tsa mocheso.
Lebitso la eona la UNS ke K41545.
Moetsi le Boemo
Liphaephe tsa tšepe tsa ASTM A335 P5 li tla etsoa ka mokhoa o se nang moeli 'me li tla be li chesa kapa li huleloa ka serame, joalo ka ha ho boletsoe.
Liphaephe tse feliloeng ka ho chesa ke lipeipi tsa tšepe tse se nang moroallo tse entsoeng ka liphaephe ka mekhoa ea ho futhumatsa le ho bilika, ha lipeipi tse huloang ke serame e le lipeipi tsa tšepe tse se nang moroko tse hlahisoang ka ho hula lipeipi tse felileng ho chesa mocheso oa kamore.
Haeba u ka rata ho ithuta ho eketsehileng ka mekhoa ea tlhahiso ea mefuta ena e 'meli ea liphaephe tsa tšepe tse se nang seamless, u ka tobetsa“Seamless Steel Pipe ke eng?”bakeng sa lintlha tse ling.
Kalafo ea Mocheso
Liphaephe tsa ASTM A335 P5 li tla futhumatsoa hape bakeng sa kalafo ea mocheso le ho phekoloa mocheso kaho tlala kapa ho sothermal or normalizing le tempering.
Litlhoko tse khethehileng li bontšitsoe tafoleng e ka tlase:
| Kereiti | Mofuta oa phekolo ea mocheso | Subcritical Annealing kapa Mocheso |
| ASTM A335 P5 | e tletseng kapa e isothermal | - |
| normalize le bohale | 1250 ℉ [675 ℃] mets |
Ts'ebetso e kenyelletsang ho futhumatsa lipeipi tsa tšepe ka holim'a mocheso oa tsona o boima, joalo ka welding, flanging, le ho kobeha ho chesang, li lokela ho lateloa ke kalafo e nepahetseng ea mocheso.
Mekhoa ea tlhahlobo ea sebopeho sa lik'hemik'hale le thepa ea mochini ea liphaephe tsa tšepe tsa P5 li tla lumellana le lipehelo tse nepahetseng tsa ASTM A999.
| Kereiti | Moetso, % | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | 0.15 max | 0,30 ~ 0,60 | 0.025 boholo | 0.025 boholo | 0.50 max | 4.00 ~ 6.00 | 0.45 ~ 0,65 |
Tensile Properties
| Kereiti | Matla a tšepe | Kotulo Matla | Elongation ho 2 in. kapa 50 mm |
| P5 | 60 ksi [415 MPa] mets | 30 ksi [205 MPa] mets | 30% mets |
Lintho tse thata
Tekanyetso ea ASTM A335 ha e hlakise litlhoko leha e le life tsa boima ba liphaephe tsa tšepe tsa P5.
Teko e bataletseng
Teko ea ho batalla e tla etsoa le ho nkuoa lisampole ho latela litlhoko tse amehang tsa ASTM A999, 'me liphaephe tse sehiloeng li ka sebelisoa e le mehlala.
Bend Test
Bakeng sa phaephe eo bophara ba eona bo fetang NPS 25 le eo bophara ba eona botenya ba lebota e leng 7.0 kapa ka tlase ho eona e tla etsoa teko ea ho kobeha ho fapana le teko ea ho batalla.
Mehlala ea teko ea bend e tla kobeha mocheso oa kamore ka 180 ° ntle le ho phunyeha ka ntle ho karolo e kobehileng. Bophara ba ka hare ba kobeha e tla ba 1 in. [25 mm].
Ponahalo
Bokaholimo ba phala ea tšepe bo tla ba boreleli, bo be boreleli, bo se na likhopo, seams, marako, meokho kapa likhoele.
Haeba botebo ba sekoli leha e le sefe bo feta 12.5% ea botenya ba lerako la lebitso kapa haeba botenya ba lebota bo setseng bo le ka tlase ho botenya bo fokolang bo boletsoeng, sebaka seo se tla nkoa se le sekoli.
Ha lerako le setseng le ntse le le ka har'a meeli e boletsoeng, sekoli se ka tlosoa ka ho sila.
Haeba botenya bo setseng ba lerako bo ka tlase ho tlhokahalo e fokolang, sekoli se tla lokisoa ka welding kapa ho tlosoa ka ho itšeha.
Mamello ea Diameter
Bakeng sa liphaephe tse laetsoeng ke NPS [DN] kapa bophara bo ka ntle, liphapano tsa bophara ba kantle li ke ke tsa feta litlhoko tse bontšitsoeng tafoleng e ka tlase:
| NPS [DN] Moqapi | Liphetoho tse lumelletsoeng | |
| ho. | mm | |
| 1/8 ho isa ho 1 1/2 [6 ho isa ho 40], inch. | ±1/64 [0.015] | ±0.40 |
| Ho feta 1 1/2 ho isa ho 4 [40 ho ea ho 100], inch. | ±1/32 [0.031] | ±0.79 |
| Ho feta 4 ho isa ho 8 [100 ho isa ho 200], inch. | -1/32 - +1/16 [-0.031 - +0.062] | -0,79 - +1,59 |
| Ho feta 8 ho isa ho 12 [200 ho isa ho 300], inch. | -1/32 - +3/32 [-0.031 - 0.093] | -0,79 - +2,38 |
| Ka holimo ho 12 [300] | ± 1% ea bophara bo boletsoeng ka ntle | |
Bakeng sa phala e laetsoeng hore e kene ka hare ho bophara, bophara ba ka hare bo ke ke ba fapana ho feta 1% ho tloha bophara bo boletsoeng ka hare.
Mamello ea Botenya ba Lerako
Ntle le moeli o hlakileng oa botenya ba lebota bakeng sa phala e behiloeng ke moeli oa boima ba 'mele ho ASTM A999, botenya ba lebota la phaephe sebakeng sefe kapa sefe bo tla ba ka har'a mamello e boletsoeng tafoleng e ka tlase:
| NPS [DN] Moqapi | Mamello, % foromo e boletsoeng |
| 1/8 ho isa ho 2 1/2 [6 ho isa ho 65] incl. likarolo tsohle tsa t/D | -12,5 - +20.0 |
| Ka holimo ho 2 1/2 [65], t/D ≤ 5% | -12,5 - +22,5 |
| Ka holimo ho 2 1/2, t/D ＞ 5% | -12,5 - +15.0 |
| t = Botenya ba Lerako bo boletsoeng; D = Botebo ba Kantle bo Boletsoe. | |
Liphaephe tsa tšepe tsa ASTM A335 P5 li sebelisoa haholo-holo lits'ebetsong tsa liphaephe tse sebetsang tlas'a maemo a phahameng a mocheso le khatello e phahameng.
Ka lebaka la matla a bona a ho hanyetsa mocheso o phahameng le thepa ea mochini, li sebelisoa haholo indastering ea petrochemical, tlhahiso ea matla le ea ho hloekisa.
Lisebelisoa tse khethehileng li kenyelletsa:
- Pipe ea boiler
- Lisebelisoa tsa mocheso
- Petrochemical process line
- Liphaephe tsa motlakase
- Lijana tsa khatello ea boiler
| ASME | ASTM | EN | JIS |
| ASME SA335 P5 | ASTM A213 T5 | EN 10216-2 X11CrMo5+I | JIS G 3458 STPA25 |
Boitsebiso:ASTM A335 P5 liphaephe tsa tšepe tse se nang moeli le lisebelisoa;
Boholo:1/8" ho isa ho 24", kapa e hlophisitsoeng ho latela litlhoko tsa hau;
Bolelele:Bolelele bo sa reroang kapa sehiloeng ho laela;
Sephutheloana:Ho roala ho ntšo, lipheletso tse betliloeng, litšireletseho tsa liphaephe, mabokose a lehong, jj.
Tšehetso:Setifikeiti sa IBR, tlhahlobo ea TPI, MTC, ho itšeha, ho sebetsa le ho e etsa;
MOQ:1 m;
Melao ea Tefo:T/T kapa L/C;
Theko:Ikopanye le rona bakeng sa litheko tsa morao-rao tsa lipeipi tsa tšepe tsa T11.
