ASTM A335 P5, yomwe imadziwikanso kuti ASME SA335 P5, ndi chitoliro chachitsulo chopanda msoko chopangidwa kuti chigwiritsidwe ntchito kutentha kwambiri.
P5 ili ndi 4.00 ~ 6.00% chromium ndi 0.45 ~ 0.65% molybdenum, zomwe zimapangitsa kuti ikhale yamphamvu komanso yogwira ntchito bwino kwambiri pa kutentha ndi kupsinjika kwakukulu. Imagwiritsidwa ntchito kwambiri muzipangizo monga ma boiler, ma superheater, ndi ma heat exchanger.
Dzina lake la UNS ndi K41545.
Wopanga ndi Mkhalidwe
Mapaipi achitsulo a ASTM A335 P5 ayenera kupangidwa ndi njira yopanda msoko ndipo ayenera kukhala otentha kapena ozizira, monga momwe zafotokozedwera.
Mapaipi omalizidwa ndi otentha ndi mapaipi achitsulo opanda msoko omwe amapangidwa kuchokera ku ma billets kudzera mu njira zotenthetsera ndi kuzunguliza, pomwe mapaipi okokedwa ozizira ndi mapaipi achitsulo opanda msoko omwe amapangidwa pokoka mapaipi otentha kutentha kwa chipinda.
Ngati mukufuna kudziwa zambiri zokhudza njira zopangira mitundu iwiri ya mapaipi achitsulo opanda msoko, mutha kudina“Kodi Chitoliro Chopanda Msoko cha Chitsulo ndi Chiyani?"kuti mudziwe zambiri.
Kutentha Chithandizo
Mapaipi a ASTM A335 P5 ayenera kutenthedwanso kuti azitha kutentha komanso kutenthedwa ndikudzaza kapena kusatentha kwa madzi or kusinthasintha ndi kutenthetsa.
Zofunikira zenizeni zikuwonetsedwa mu tebulo ili m'munsimu:
| Giredi | Mtundu wa chithandizo cha kutentha | Kuzizira kapena Kutentha Kosafunikira |
| ASTM A335 P5 | anneal yodzaza kapena yosiyana ndi kutentha | — |
| kusinthasintha ndi kusinthasintha | 1250 ℉ [675 ℃] mphindi |
Ntchito zomwe zimaphatikizapo kutentha mapaipi achitsulo pamwamba pa kutentha kwawo kofunikira, monga kuwotcherera, kupalasa, ndi kupindika kutentha, ziyenera kutsatiridwa ndi kutentha koyenera.
Njira zoyesera kapangidwe ka mankhwala ndi mphamvu za makina a mapaipi achitsulo a P5 ziyenera kutsatira malamulo oyenera a ASTM A999.
| Giredi | Kapangidwe, % | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | 0.15 pasadakhale | 0.30 ~ 0.60 | 0.025 pasadakhale | 0.025 pasadakhale | 0.50 pasadakhale | 4.00 ~ 6.00 | 0.45 ~ 0.65 |
Katundu Wokoka
| Giredi | Kulimba kwamakokedwe | Mphamvu Yopereka | Kutalikitsa mu mainchesi awiri kapena 50 mm |
| P5 | 60 ksi [415 MPa] mphindi | 30 ksi [205 MPa] mphindi | Mphindi 30% |
Katundu Wolimba
Muyezo wa ASTM A335 sutchula zofunikira zilizonse zolimba pa mapaipi achitsulo a P5.
Mayeso Ophwanyika
Kuyesa kosalala kuyenera kuchitika ndikuyesedwa motsatira zofunikira za ASTM A999, ndipo malekezero a mapaipi odulidwa angagwiritsidwe ntchito ngati zitsanzo.
Mayeso Opindika
Pa chitoliro chomwe mainchesi ake ndi oposa NPS 25 ndipo chiŵerengero chake cha mainchesi ndi makulidwe a khoma ndi 7.0 kapena kuchepera, chiyenera kuyesedwa kupindika m'malo mwa mayeso ophwanyika.
Zitsanzo zoyeserera kupindika ziyenera kupindika kutentha kwa chipinda mpaka madigiri 180 popanda kusweka kunja kwa gawo lopindika. M'mimba mwake mwa kupindika uyenera kukhala mainchesi 25.
Maonekedwe
Pamwamba pa chitoliro chachitsulo payenera kukhala posalala komanso mofanana, popanda zipsera, mipata, mipata, kung'ambika, kapena zidutswa.
Ngati kuya kwa chilema chilichonse kupitirira 12.5% ya makulidwe a khoma kapena ngati makulidwe otsalawo ali pansi pa makulidwe ochepera omwe adatchulidwa, malowo adzaonedwa kuti ndi olakwika.
Ngati makulidwe otsala a khoma akadali mkati mwa malire omwe atchulidwa, cholakwikacho chingachotsedwe pochipera.
Ngati makulidwe a khoma otsala ali pansi pa zofunikira zochepa, cholakwikacho chiyenera kukonzedwa mwa kuwotcherera kapena kuchotsedwa mwa kudula.
Kulekerera kwa m'mimba mwake
Pa mapaipi olamulidwa ndi NPS [DN] kapena m'mimba mwake wakunja, kusintha kwa m'mimba mwake wakunja sikuyenera kupitirira zofunikira zomwe zawonetsedwa patebulo pansipa:
| Wopanga NPS [DN] | Zosiyanasiyana Zovomerezeka | |
| mu. | mm | |
| 1/8 mpaka 1 1/2 [6 mpaka 40], inchi. | ±1/64 [0.015] | ± 0.40 |
| Kupitirira 1 1/2 mpaka 4 [40 mpaka 100], inchi. | ±1/32 [0.031] | ± 0.79 |
| Kupitirira 4 mpaka 8 [100 mpaka 200], mainchesi. | -1/32 - +1/16 [-0.031 - +0.062] | -0.79 - +1.59 |
| Kupitirira 8 mpaka 12 [200 mpaka 300], mainchesi. | -1/32 - +3/32 [-0.031 - 0.093] | -0.79 - +2.38 |
| Oposa 12 [300] | ± 1% ya dayamita yakunja yotchulidwa | |
Pa chitoliro chokonzedwa kuti chikhale m'mimba mwake mkati, m'mimba mwake mkati mwake musasinthe kuposa 1% kuchokera m'mimba mwake mkati mwake.
Kulekerera kwa Makulidwe a Khoma
Kuwonjezera pa malire osabisika a makulidwe a khoma la chitoliro omwe amaperekedwa ndi malire a kulemera mu ASTM A999, makulidwe a khoma la chitoliro nthawi iliyonse ayenera kukhala mkati mwa zolekerera zomwe zafotokozedwa mu tebulo ili m'munsimu:
| Wopanga NPS [DN] | Kulekerera, % ya fomu Yofotokozedwa |
| 1/8 mpaka 2 1/2 [6 mpaka 65] kuphatikiza ma ratios onse a t/D | -12.5 - +20.0 |
| Pamwamba pa 2 1/2 [65], t/D ≤ 5% | -12.5 - +22.5 |
| Pamwamba pa 2 1/2, t/D ＞ 5% | -12.5 - +15.0 |
| t = Kukhuthala kwa Khoma Kodziwika; D = Kuchuluka kwa Kunja Kodziwika. | |
Mapaipi achitsulo a ASTM A335 P5 amagwiritsidwa ntchito makamaka m'machitidwe a mapaipi omwe amagwira ntchito pa kutentha kwambiri komanso kuthamanga kwambiri.
Chifukwa cha kukana kutentha kwambiri komanso mphamvu zake zamakanika, zimagwiritsidwa ntchito kwambiri m'mafakitale opanga mafuta, opanga magetsi, komanso mafakitale oyeretsera.
Ntchito zinazake zikuphatikizapo:
- Mapaipi a boiler
- Zosinthira kutentha
- Mizere ya njira ya Petrochemical
- Mapaipi a fakitale yamagetsi
- Ziwiya zopondereza boiler
| ASME | ASTM | EN | JIS |
| ASME SA335 P5 | ASTM A213 T5 | EN 10216-2 X11CrMo5+I | JIS G 3458 STPA25 |
Zipangizo:mapaipi ndi zolumikizira zachitsulo zopanda msoko za ASTM A335 P5;
Kukula:1/8" mpaka 24", kapena kusinthidwa malinga ndi zomwe mukufuna;
Utali:Kutalika kosasinthika kapena kudula motsatira dongosolo;
Kupaka:Zophimba zakuda, malekezero opindika, zoteteza malekezero a mapaipi, mabokosi amatabwa, ndi zina zotero.
Thandizo:Satifiketi ya IBR, kuyang'anira TPI, MTC, kudula, kukonza, ndi kusintha;
MOQ:1 m;
Malamulo Olipira:T/T kapena L/C;
Mtengo:Lumikizanani nafe kuti mudziwe mitengo yaposachedwa ya chitoliro chachitsulo cha T11.
