Muri ASTM A213, usibye ibisabwa kumitungo iremereye no gukomera, harakenewe kandi ibizamini bikurikira: Ikizamini cya Flattening na Bend Test.
ASTM A335 P22(ASME SA335 P22) ni serivisi yubushyuhe bwo hejuru idafite chromium-molybdenum alloy ibyuma, ikoreshwa cyaneamashyiga, superheater, nubushyuheabahana.
Irimo 1.90%kugeza kuri 2,60% chromium na 0.87% kugeza kuri 1,13% molybdenum, ifite imbaraga zo guhangana nubushyuhe, kandi irakwiriye no kunama, guhindagurika, cyangwa ibikorwa bisa.
UNS nimero: K21590.
ASTM A335 nuburyo busanzwe bwerekana imiyoboro ya ferritic alloy-ibyuma bigenewe serivisi yubushyuhe bwo hejuru. Irakoreshwa cyane mubyuma, superheater, guhanahana ubushyuhe, nibindi bikorwa bikora munsi yubushyuhe bwinshi nubushyuhe bukabije. Usibye Icyiciro cya P22, andi masomo asanzwe avanze arimoP5 (UNS K41545), P9 (UNS K90941), P11 (UNS K11597), naP91 (UNS P90901).
Ihinguriro n'imiterere
ASTM A335 P22 imiyoboro yicyuma igomba gukorwa nuburyo butagira ikizinga kandi igomba kuba ishyushye cyangwa ikonje ikonje hamwe no kuvura birangiye.
Imiyoboro y'icyuma idafite icyerekezoni imiyoboro idafite gusudira, itanga imiyoboro ya P22 ifite umutekano muke kandi wizewe mubushyuhe bwo hejuru hamwe n’umuvuduko mwinshi.
Kuvura Ubushuhe
Imiyoboro y'icyuma ya P22 igomba gushyuha no gushyukwa nubushyuhe bwuzuye bwuzuye, isothermal annealing, cyangwa nibisanzwe hamwe nubushyuhe.
| Icyiciro | Ubwoko bwo kuvura ubushyuhe | Subcritical Annealing cyangwa Ubushyuhe |
| ASTM A335 P22 | byuzuye cyangwa isothermal anneal | - |
| gusanzwe no kurakara | 1250 ℉ [675 ℃] min |
Chromium (Cr) na molybdenum (Mo) ni ibintu by'ingenzi bivanga mu byuma bya P22, bizamura imbaraga z'ubushyuhe bwo hejuru, birwanya okiside, kandi biramba. Imiterere yihariye yimiti irerekanwa hepfo:
| Icyiciro | Ibigize,% | ||||||
| C | Mn | P | S | Si | Cr | Mo | |
| P22 | 0.05 ~ 0.15 | 0.30 ~ 0.60 | 0.025 max | 0.025 max | 0,50 max | 1.90 ~ 2.60 | 0.87 ~ 1.13 |
Ibizamini byumutungo wa P22 bizakorwa hubahirijwe ibisabwa ASTM A999.
Ibintu byiza
| Icyiciro | ASTM A335 P22 | |
| Imbaraga zingana, min | 60 ksi [415 MPa] | |
| Tanga imbaraga, min | 30 ksi [205 MPa] | |
| Kurambura muri 2 muri. Cyangwa mm 50 (cyangwa 4D), min | Birebire | Guhindura |
| Kurambura byibuze kurukuta 5/16 muri [8 mm] no hejuru yubugari, ibizamini bya strip, no kubunini buto bwageragejwe mubice byuzuye | 30% | 20% |
| Iyo uruziga rusanzwe rwa 2 muri cyangwa 50 mm z'uburebure bwa gage cyangwa ugereranije ubunini buto ugereranije n'uburebure bwa gage bungana na 4D (inshuro 4 z'umurambararo) | 22% | 14% |
| Kugirango ibizamini bya strip bigabanuke kuri buri 1/32 muri [0.8 mm] kugabanuka kwubukuta bwurukuta munsi ya 1/32 muri. | 1.50% | 1.00% |
Ibyiza byo gukomera
Igipimo cya ASTM A335 ntigaragaza neza ibikenewe bikenerwa kumiyoboro ya P22.
Ibindi Bizamini
Ubworoherane bwa Diameter
Ku muyoboro watumijwe na NPS [DN] cyangwa diameter yo hanze, itandukaniro rya diameter yo hanze ntirishobora gusabwa mu mbonerahamwe ikurikira:
| NPS [DN] Ibishushanyo | Impinduka zemewe | |
| in. | mm | |
| 1/8 kugeza 1/2 [6 kugeza 40], santimetero. | ± 1/64 [0.015] | ± 0.40 |
| Kurenga 1/2 kugeza 4 [40 kugeza 100], santimetero. | ± 32 [0.031] | ± 0.79 |
| Kurenga 4 kugeza 8 [100 kugeza 200], santimetero. | -1/32 - +1/16 [-0.031 - +0.062] | -0.79 - +1.59 |
| Kurenga 8 kugeza 12 [200 kugeza 300], santimetero. | -1/32 - +3/32 [-0.031 - 0.093] | -0.79 - +2.38 |
| Kurenga 12 [300] | ± 1% byerekanwe hanze ya diameter | |
Ku muyoboro wateganijwe imbere ya diameter, imbere imbere ntishobora gutandukana kurenza 1% uhereye kumurambararo wimbere.
Ubworoherane bw'Urukuta
Usibye kugarukira ku buryo butaziguye uburebure bw'urukuta ku muyoboro washyizweho no kugabanya uburemere muri ASTM A999, uburebure bw'urukuta rw'umuyoboro aho ariho hose bugomba kuba mu kwihanganira kugaragara ku mbonerahamwe ikurikira:
| NPS [DN] Ibishushanyo | Ubworoherane |
| 1/8 kugeza 2 1/2 [6 kugeza 65] incl. ibipimo byose t / D. | -12.5% ~ +20.0% |
| Hejuru ya 2 1/2 [65], t / D ≤ 5% | -12.5% ~ +22.5% |
| Hejuru ya 2 1/2, t / D ＞ 5% | -12.5% ~ +15.0% |
| ASME | ASTM | EN | DIN | JIS |
| ASME SA335 P22 | ASTM A213 T22 | DIN 10216-2 10CrMo9-10 | DIN 17175 10CrMo9-10 | JIS G 3458 STPA25 |
Ibikoresho:ASTM A335 P22 imiyoboro idafite ibyuma hamwe nibikoresho;
Ingano:1/8 "kugeza 24", cyangwa byashizweho ukurikije ibyo usabwa;
Uburebure:Uburebure busanzwe cyangwa gukata gutumiza;
Gupakira:Ipitingi yumukara, impera zometseho, kurinda imiyoboro ya nyuma, ibisanduku byimbaho, nibindi.
Inkunga:Icyemezo cya IBR, ubugenzuzi bwa TPI, MTC, gukata, gutunganya, no kubitunganya;
MOQ:M 1;
Amasezerano yo kwishyura:T / T cyangwa L / C;
Igiciro:Twandikire kubiciro bya T11 bigezweho;
