Chithunzi cha ASTM A335 P5, yomwe imadziwikanso kuti ASME SA335 P5, ndi chitoliro chochepa chachitsulo chopanda phokoso chopangidwira ntchito yotentha kwambiri.
P5 ili ndi 4.00 ~ 6.00 % chromium ndi 0.45 ~ 0.65% molybdenum, yopereka mphamvu zabwino kwambiri ndikugwira ntchito pansi pa kutentha kwakukulu ndi zipsinjo. Amagwiritsidwa ntchito kwambiri pazida monga ma boilers, superheaters, ndi zosinthira kutentha.
Dzina lake la UNS ndi K41545.
Wopanga ndi Mkhalidwe
Mapaipi achitsulo a ASTM A335 P5 adzapangidwa ndi njira yopanda msoko ndipo azikhala otentha kapena ozizira kukokedwa, monga tafotokozera.
Mapaipi otsirizidwa ndi chitsulo chosasunthika opangidwa kuchokera ku mabanki kupyolera mu kutentha ndi kugudubuza njira, pamene mapaipi ozizira ndi mapaipi achitsulo osasunthika opangidwa ndi kujambula mapaipi otentha kutentha kutentha.
Ngati mukufuna kudziwa zambiri za njira zopangira mitundu iwiri ya mapaipi achitsulo opanda msoko, mutha kudina“Kodi Seamless Steel Pipe ndi chiyani?”kuti mumve zambiri.
Kutentha Chithandizo
Mapaipi a ASTM A335 P5 adzatenthedwanso kuti azitha kutentha ndi kutenthaannealing kwathunthu kapena isothermal or normalizing ndi kutentha.
Zofunikira zenizeni zikuwonetsedwa mu tebulo ili m'munsimu:
| Gulu | Kutentha azichitira mtundu | Subcritical Annealing kapena Kutentha |
| Chithunzi cha ASTM A335 P5 | chodzaza kapena isothermal | - |
| normalize ndi kupsa mtima | 1250 ℉ [675 ℃] min |
Ntchito zomwe zimaphatikizapo kutentha mapaipi achitsulo pamwamba pa kutentha kwakukulu, monga kuwotcherera, kuwotcherera, ndi kupindika kotentha, ziyenera kutsatiridwa ndi kutentha koyenera.
Njira zoyesera za kapangidwe ka mankhwala ndi makina a mapaipi achitsulo a P5 azitsatira zomwe ASTM A999 ikupereka.
| Gulu | Kupanga,% | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P5 | 0.15 max | 0.30 ~ 0.60 | 0.025 kukula | 0.025 kukula | 0.50 max | 4.00 ~ 6.00 | 0.45 ~ 0.65 |
Tensile Properties
| Gulu | Kulimba kwamakokedwe | Zokolola Mphamvu | Elongation mu 2 in. kapena 50 mm |
| P5 | 60 ksi [415 MPa] min | 30 ksi [205 MPa] min | 30% mphindi |
Kuuma Properties
Muyezo wa ASTM A335 sunatchule zofunikira zilizonse za kuuma kwa mapaipi achitsulo a P5.
Mayeso a Flattening
Mayeso a Flattening adzachitidwa ndikuyesedwa molingana ndi zofunikira za ASTM A999, ndipo mapeto a mapaipi odulidwa angagwiritsidwe ntchito ngati zitsanzo.
Bend Test
Kwa chitoliro chomwe m'mimba mwake chimaposa NPS 25 ndipo m'mimba mwake mpaka chiŵerengero cha makulidwe a khoma ndi 7.0 kapena kucheperapo chidzayesedwa kupindika m'malo mwa kuyesa kwa flattening.
Mayesero a bend ayenera kupindika kutentha kwa 180 ° popanda kusweka kunja kwa gawo lopindika. M'kati mwake m'kati mwake mumakhala 1 in. [25 mm].
Maonekedwe
Pamwamba pa chitoliro chachitsulo chizikhala chosalala komanso chosalala, chopanda nkhanambo, misozi, mikwingwirima, misozi, kapena slivers.
Ngati kuya kwa chilema chilichonse kupitilira 12.5% ya makulidwe a khoma kapena ngati makulidwe a khoma otsalawo ali pansi pa makulidwe ochepera omwe atchulidwa, malowo amaonedwa kuti alibe vuto.
Pamene makulidwe otsala a khoma akadali mkati mwa malire omwe atchulidwa, chilemacho chikhoza kuchotsedwa ndi kugaya.
Ngati makulidwe otsala a khoma ali pansi pa zofunikira zochepa, chilemacho chidzakonzedwa ndi kuwotcherera kapena kuchotsedwa ndi kudula.
Kulekerera kwa Diameter
Pa mapaipi olamulidwa ndi NPS [DN] kapena m'mimba mwake, kusiyanasiyana kwa m'mimba mwake sikudzapitirira zomwe zasonyezedwa patebulo ili pansipa:
| NPS [DN] Wopanga | Zovomerezeka Zosiyanasiyana | |
| mu. | mm | |
| 1/8 mpaka 1 1/2 [6 mpaka 40], inchi. | ±1/64 [0.015] | ± 0.40 |
| Kupitilira 1 1/2 mpaka 4 [40 mpaka 100], inchi. | ±1/32 [0.031] | ± 0.79 |
| Kupitilira 4 mpaka 8 [100 mpaka 200], inchi. | -1/32 - +1/16 [-0.031 - +0.062] | -0,79 - +1.59 |
| Opitilira 8 mpaka 12 [200 mpaka 300], inchi. | -1/32 - +3/32 [-0.031 - 0.093] | -0,79 - +2.38 |
| Opitilira 12 [300] | ± 1% ya m'mimba mwake yomwe yatchulidwa | |
Pakuti chitoliro analamula kuti m'mimba mwake, m'mimba mwake mkati sizidzasiyana kuposa 1% kuchokera m'mimba mwake.
Kulekerera kwa Makulidwe a Khoma
Kuphatikiza pa kuletsa kokwanira kwa makulidwe a khoma la chitoliro chokhazikitsidwa ndi kuchepetsa kulemera kwa ASTM A999, makulidwe a khoma la chitoliro pamalo aliwonse azikhala mkati mwa kulolera zomwe zafotokozedwa patebulo ili pansipa:
| NPS [DN] Wopanga | Kulolerana, % mawonekedwe Atchulidwa |
| 1/8 mpaka 2 1/2 [6 mpaka 65] kuphatikizapo. mitundu yonse ya 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 = Kunenepa kwa Khoma; D = Chodziwika Kunja Diameter. | |
Mapaipi achitsulo a ASTM A335 P5 amagwiritsidwa ntchito makamaka pamapaipi omwe amagwira ntchito pansi pa kutentha kwambiri komanso kupanikizika kwambiri.
Chifukwa cha kukana kwawo kutentha kwambiri komanso makina amakina, amagwiritsidwa ntchito kwambiri m'mafakitale a petrochemical, opanga magetsi, ndi mafakitale oyenga.
Mapulogalamu apadera ndi awa:
- Kutentha kwa boiler
- Zosintha kutentha
- Njira za petrochemical process
- Kuyika mapaipi amagetsi
- Zotengera za boiler
| ASME | Chithunzi cha ASTM | EN | JIS |
| Chithunzi cha ASME SA335 P5 | Chithunzi cha ASTM A213 T5 | EN 10216-2 X11CrMo5+I | Chithunzi cha JIS G3458 STPA25 |
Zofunika:ASTM A335 P5 mipope yachitsulo yopanda msoko ndi zozolowera;
Kukula:1/8" mpaka 24", kapena makonda malinga ndi zomwe mukufuna;
Utali:Kutalika kwachisawawa kapena kudula kuyitanitsa;
Kuyika:Kupaka kwakuda, malekezero opindika, oteteza chitoliro, mabokosi amatabwa, etc.
Thandizo:IBR certification, TPI anayendera, MTC, kudula, processing, ndi makonda;
MOQ:1 m;
Malipiro:T/T kapena L/C;
Mtengo:Lumikizanani nafe kuti mupeze mitengo yaposachedwa yapaipi yachitsulo ya T11.
