Mu ASTM A213, kuwonjezera pa zofunikira pazamphamvu komanso kuuma, mayeso otsatirawa amafunikiranso: Kuyesa kwa Flattening ndi Bend Test.
Chithunzi cha ASTM A335 P22(ASME SA335 P22) ndi ntchito yotentha kwambiri yopanda chitsulo cha chromium-molybdenum alloy, yomwe imagwiritsidwa ntchito kwambiriboilers, zotenthetsera zazikulu, ndi kutenthaosinthanitsa.
Ili ndi 1.90%mpaka 2.60% chromium ndi 0.87% mpaka 1.13% molybdenum, ili ndi kukana kwambiri kutentha, komanso ndiyoyenera kupindika, kuwomba, kapena kupanga maopaleshoni ofanana.
Nambala ya UNS: K21590.
ASTM A335 ndiye muyeso wokhazikika wamapaipi opanda chitsulo cha ferritic alloy-zitsulo opangira ntchito yotentha kwambiri. Amagwiritsidwa ntchito kwambiri mu boilers, superheaters, exchangers kutentha, ndi ntchito zina zomwe zimagwira ntchito pansi pa kutentha kwambiri komanso kupanikizika kwambiri. Kuphatikiza pa Gulu P22, magiredi ena wamba aloyi amaphatikizansoP5 (UNS K41545), P9 (UNS K90941), P11 (UNS K11597),ndiP91 (UNS P90901).
Wopanga ndi Mkhalidwe
Mapaipi achitsulo a ASTM A335 P22 adzapangidwa ndi njira yopanda msoko ndipo azikhala otentha kapena oziziritsa ndi kumaliza.
Mipope yachitsulo yopanda msokondi mapaipi opanda ma welds, omwe amapereka mapaipi achitsulo a P22 okhala ndi kukhazikika kwapamwamba komanso kudalirika m'malo otentha kwambiri komanso opanikizika kwambiri.
Kutentha Chithandizo
Mipope yachitsulo ya P22 iyenera kutenthedwanso ndikutenthedwa ndi kutentha kwathunthu, kutenthetsa kwamtundu wa isothermal, kapena normalizing ndi kutentha.
| Gulu | Kutentha azichitira mtundu | Subcritical Annealing kapena Kutentha |
| Chithunzi cha ASTM A335 P22 | chodzaza kapena isothermal | - |
| normalize ndi kupsa mtima | 1250 ℉ [675 ℃] min |
Chromium (Cr) ndi molybdenum (Mo) ndi zinthu zofunika kwambiri za alloying mu chitsulo cha P22, zomwe zimapangitsa kuti pakhale kutentha kwambiri, kukana kwa okosijeni, komanso kulimba. Kapangidwe kakemidwe kake kakuwonetsedwa pansipa:
| Gulu | Kupanga,% | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P22 | 0.05 ~ 0.15 | 0.30 ~ 0.60 | 0.025 kukula | 0.025 kukula | 0.50 max | 1.90 ~ 2.60 | 0.87 ~ 1.13 |
Mayeso a makina a P22 azichitika molingana ndi zofunikira za ASTM A999.
Tensile Properties
| Gulu | Chithunzi cha ASTM A335 P22 | |
| Mphamvu zolimba, min | 60 ksi [415 MPa] | |
| Mphamvu zokolola, min | 30 ksi [205 MPa] | |
| Elongation mu 2 in. kapena 50 mm (kapena 4D), min | Longitudinal | Chodutsa |
| Kutalikirako pang'ono kwa khoma 5/16 mu [8 mm] ndi kupitilira mu makulidwe, mayeso a mizere, ndi ma size ang'onoang'ono oyesedwa ndi gawo lonse. | 30% | 20% |
| Pamene muyezo wozungulira 2 mu kapena 50 mm gage kutalika kapena molingana ang'onoang'ono kukula chitsanzo ndi gage kutalika ofanana 4D (4 nthawi awiriwa) ntchito. | 22% | 14% |
| Pakuyesa kwa mizere, kuchotsera pa 1/32 iliyonse mu [0.8 mm] kuchepa kwa khoma pansi pa 1/32 in. | 1.50% | 1.00% |
Kuuma Properties
Muyezo wa ASTM A335 sunatchule zofunikira za kuuma kwa mapaipi achitsulo a P22.
Zinthu Zina Zoyesera
Kulekerera kwa Diameter
Kwa chitoliro cholamulidwa ndi NPS [DN] kapena m'mimba mwake yakunja, kusiyana kwa m'mimba mwake sikudzapitirira zofunikira 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 Wall Makulidwe
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 | Kulekerera |
| 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% |
| ASME | Chithunzi cha ASTM | EN | DIN | JIS |
| Chithunzi cha ASME SA335 P22 | Chithunzi cha ASTM A213 T22 | DIN 10216-2 10CrMo9-10 | Chithunzi cha DIN 17175 10CrMo9-10 | Chithunzi cha JIS G3458 STPA25 |
Zofunika:ASTM A335 P22 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 pamitengo yaposachedwa yachitsulo ya T11;
