ASTM A335 P5, e tsejoang hape e le ASME SA335 P5, ke phaephe ea tšepe e se nang mohele e entsoeng ka motsoako o tlase e etselitsoeng tšebeletso ea mocheso o phahameng.
P5 e na le chromium ea 4.00 ~ 6.00% le molybdenum ea 0.45 ~ 0.65%, e fanang ka matla le ts'ebetso e ntle haholo tlas'a mocheso le khatello e phahameng. E sebelisoa haholo lisebelisoa tse kang liboiler, li-superheater le li-heat exchanger.
Lebitso la eona la UNS ke K41545.
Moetsi le Boemo
Liphaephe tsa tšepe tsa ASTM A335 P5 li lokela ho etsoa ka mokhoa o se nang sekoli 'me li lokela ho phethoa ka mocheso kapa li huloe ka serame, joalo ka ha ho boletsoe.
Liphaephe tse phethiloeng ka mocheso ke liphaephe tsa tšepe tse se nang moedi tse entsoeng ka li-billet ka mekhoa ea ho futhumatsa le ho phutholla, ha liphaephe tse huloang ka mocheso o batang e le liphaephe tsa tšepe tse se nang moedi tse hlahisoang ka ho hula liphaephe tse phethiloeng ka mocheso o mofuthu oa kamore.
Haeba o ka rata ho ithuta haholoanyane ka mekhoa ea tlhahiso ea mefuta ena e 'meli ea liphaephe tsa tšepe tse se nang sekoli, o ka tobetsa“Pipe ea Tšepe e se nang Seamless ke eng?""bakeng sa lintlha tse ling.
Kalafo ea Mocheso
Liphaephe tsa ASTM A335 P5 li lokela ho futhumatsoa hape bakeng sa kalafo ea mocheso le phekolo ea mocheso keho annealing ka botlalo kapa ka isothermal or ho normalizing le ho temperatura.
Litlhoko tse tobileng li bontšitsoe tafoleng e ka tlase:
| Sehlopha | Mofuta oa phekolo ea mocheso | Ho Hlophisoa ha Mocheso kapa Mocheso o sa Bonahaleng |
| ASTM A335 P5 | anneal e felletseng kapa e sa fetoheng mochesong | — |
| tloaeleha le ho halefa | 1250 ℉ [675 ℃] mets |
Mesebetsi e kenyeletsang ho futhumatsa liphaephe tsa tšepe ka holim'a mocheso oa tsona o boima, joalo ka ho tjheseletsa, ho flanging le ho kobeha ka mocheso, e lokela ho lateloa ke kalafo e loketseng ea mocheso.
Mekhoa ea liteko bakeng sa sebopeho sa lik'hemik'hale le thepa ea mechini ea liphaephe tsa tšepe tsa P5 e tla latela lipehelo tse amehang tsa ASTM A999.
| Sehlopha | Sebopeho, % | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | 0.15 max | 0.30 ~ 0.60 | 0.025 max | 0.025 max | 0.50 max | 4.00 ~ 6.00 | 0.45 ~ 0.65 |
Matlo a ho Tenyetseha
| Sehlopha | Matla a tšepe | Matla a Tekanyo | Ho lelefatsa ka lisenthimithara tse 2 kapa 50 mm |
| P5 | 60 ksi [415 MPa] mets | 30 ksi [205 MPa] mets | 30% metsotso |
Matlotlo a ho tiea
Tekanyetso ea ASTM A335 ha e hlalose litlhoko life kapa life tsa ho thatafala bakeng sa liphaephe tsa tšepe tsa P5.
Teko ea ho Batalatsa
Teko ea ho batalla e tla etsoa le ho qoelisoa sampole ho latela litlhoko tse amehang tsa ASTM A999, 'me lipheletso tsa phaephe e khaotsoeng li ka sebelisoa e le mehlala.
Teko ea Kobeha
Bakeng sa phaephe eo bophara ba yona bo fetang NPS 25 mme karolelano ya yona ya bophara le botenya ba lebota e le 7.0 kapa ka tlase e tla etswa teko ya ho kobeha ho ena le teko ya ho batalatsa.
Disampole tsa teko ya ho kobeha di lokela ho kobeha mochesong wa kamore ho fihlela ho 180° ntle le ho petsoha ka ntle ho karolo e kobehileng. Bophara ba kahare ba ho kobeha e lokela ho ba 25 mm.
Ponahalo
Bokaholimo ba phaephe ea tšepe bo lokela ho ba bo boreleli le bo lekanang, bo se na makhopho, likhopo, mapheo, meokho, kapa li-sliver.
Haeba botebo ba sekoli leha e le sefe bo feta 12.5% ea botenya ba lebota bo tloaelehileng kapa haeba botenya bo setseng ba lebota bo le ka tlase ho botenya bo bonyane bo boletsoeng, sebaka seo se tla nkoa se na le sekoli.
Ha botenya ba lebota bo setseng bo ntse bo le ka hare ho meeli e boletsoeng, sekoli se ka tlosoa ka ho sila.
Haeba botenya ba lebota le setseng bo le ka tlase ho tlhoko e tlase, sekoli se tla lokisoa ka ho tjheseletsa kapa ho tlosoa ka ho seha.
Mamello ea bophara
Bakeng sa liphaephe tse odarileng ka NPS [DN] kapa bophara ba kantle, diphetoho tsa bophara ba kantle di ke ke tsa feta ditlhoko tse bontshitsweng tafoleng e ka tlase:
| Moqapi oa NPS [DN] | Mefuta e Lumelloang | |
| ka hare. | mm | |
| 1/8 ho isa ho 1 1/2 [6 ho isa ho 40], lisenthimithara. | ±1/64 [0.015] | ± 0.40 |
| Ho feta 1 1/2 ho isa ho 4 [40 ho isa ho 100], lisenthimithara. | ±1/32 [0.031] | ± 0.79 |
| Ho feta 4 ho isa ho 8 [100 ho isa ho 200], lisenthimithara. | -1/32 - +1/16 [-0.031 - +0.062] | -0.79 - +1.59 |
| Ho feta 8 ho isa ho 12 [200 ho isa ho 300], lisenthimithara. | -1/32 - +3/32 [-0.031 - 0.093] | -0.79 - +2.38 |
| Ba fetang 12 [300] | ± 1% ea bophara bo boletsoeng ka ntle | |
Bakeng sa phaephe e laetsoeng ho ba bophara ba kahare, bophara ba kahare ha boa lokela ho fapana ho feta 1% ho tloha bophara bo boletsoeng ba kahare.
Mamello ea Botenya ba Lebota
Ntle le moedi o sa bonahaleng wa botenya ba lebota bakeng sa phaephe o behilweng ke moedi wa boima ho ASTM A999, botenya ba lebota bakeng sa phaephe neng kapa neng bo tla ba ka hara mamello e boletsweng tafoleng e ka tlase:
| Moqapi oa NPS [DN] | Mamello, % foromo E totobalitsoe |
| 1/8 ho isa ho 2 1/2 [6 ho isa ho 65] ho kenyeletsoa le dikarolelano tsohle tsa t/D | -12.5 - +20.0 |
| Kaholimo ho 2 1/2 [65], t/D ≤ 5% | -12.5 - +22.5 |
| Kaholimo ho 2 1/2, t/D ＞ 5% | -12.5 - +15.0 |
| t = Botenya ba Lebota bo Boletsweng; D = Bophara ba Kantle bo Boletsweng. | |
Liphaephe tsa tšepe tsa ASTM A335 P5 li sebelisoa haholo-holo lits'ebetsong tsa liphaephe tse sebetsang tlas'a maemo a mocheso o phahameng le khatello e phahameng.
Ka lebaka la ho hanyetsa mocheso o phahameng haholo le thepa ea mechini, li sebelisoa haholo indastering ea petrochemical, tlhahiso ea motlakase le ea ho hloekisa.
Lisebelisoa tse ikhethileng li kenyelletsa:
- Liphaephe tsa boiler
- Li-exchange tsa mocheso
- Methapo ea ts'ebetso ea Petrochemical
- Liphaephe tsa feme ea motlakase
- Metsi a khatello ea boiler
| ASME | ASTM | EN | JIS |
| ASME SA335 P5 | ASTM A213 T5 | EN 10216-2 X11CrMo5+I | JIS G 3458 STPA25 |
Boitsebiso:Liphaephe le lisebelisoa tsa tšepe tse se nang mohele tsa ASTM A335 P5;
Boholo:1/8" ho isa ho 24", kapa e etselitsoe ho latela litlhoko tsa hau;
Bolelele:Bolelele bo sa reroang kapa sehiloeng ho latela odara;
Sephutheloana:Sekoahelo se setšo, lipheletso tse betliloeng, litšireletso tsa pheletso ea liphaephe, mabokose a lehong, jj.
Tšehetso:Setifikeiti sa IBR, tlhahlobo ea TPI, MTC, ho seha, ho sebetsana le eona le ho e etsa ka tsela e ikhethileng;
MOQ:1 m;
Melao ea Tefo:T/T kapa L/C;
Theko:Ikopanye le rona bakeng sa litheko tsa morao-rao tsa liphaephe tsa tšepe tsa T11.
