ASTM A335 P91, inozivikanwawo seASME SA335 P91, isimbi isina musono ferritic alloy simbi pombi ye-high-temperature service, UNS No. K91560.
Hune hushomasimba rekusimba re585 MPa(85 ksi) uye zvishomagoho simba re415 MPa(60 ksi).
P91kunyanya ine alloying zvinhu senge chromium uye molybdenum, uye akasiyana ezvimwe zvinhu zvinosanganiswa zvinowedzerwa, zvehigh-alloy simbi, saka ine super simba uye yakanakisa corrosion resistance.
Mukuwedzera, P91 inowanikwa mumhando mbiri,Type 1uyeType 2, uye inowanzoshandiswa mumagetsi emagetsi, marefineries, makemikari zvivako zvakakosha midziyo, uye pombi munzvimbo yakakwirira-yekushisa uye yakakwirira-kudzvinyirira.
P91 simbi pombi yakakamurwa mumhando mbiri, Type 1 uye Type 2.
Mhando dzese dziri mbiri dzakafanana maererano nemishini yemagetsi uye zvimwe zvinodiwa senge kupisa kupisa,ine misiyano midiki mukuumbwa kwemakemikari uye chaiyo application inotarisa.
Kemikari yakagadzirwa: Kuenzaniswa neRudzi rwekutanga, chimiro chemakemikari cheRudzi rwechipiri chakanyanya kuomarara uye chine mamwe maalloying zvinhu kuti zvipe zvirinani kupisa uye kuomarara kuramba.
Applications: Nekuda kwekugadziriswa kwemakemikari, Type 2 inonyanya kukodzera kune tembiricha yakanyanya kana nzvimbo dzinoita ngura, kana mumashandisirwo anodiwa simba repamusoro uye kusimba.
ASTM A335 simbi pombi inofanira kuvaisina musono.
Iyo isina musono nzira yekugadzira yakakamurwa kuitakupisa kuperauyechando chinotorwa.
Pazasi pane dhizaini yekupisa kunopisa.
Kunyanya, P91, yakakwira-alloy simbi pombi, iyo inowanzoshandiswa munzvimbo dzakaomarara zvichienderana nekupisa kwakanyanya uye kumanikidzwa, seamless simbi pombi inosimbiswa zvakafanana uye inogona kugadzirwa mukobvu-madziro, nokudaro kuve nechokwadi chekuchengetedzwa kwepamusoro uye zvirinani mari-inoshanda. .
P91 Mapaipi ese anofanirwa kubatwa-kupisa kuti akwidzise microstructure yepombi, kunatsiridza mashandiro ayo emuchina, uye kuwedzera kupikisa kupisa kwakanyanya uye kudzvanywa.
P91 Type 1 Chemical Components
P91 Type 2 Chemical Components
Nemifananidzo miviri iri pamusoro, zviri nyore kuona mutsauko pakati peRudzi 1 neRudzi rwechipiri chemakemikari zvinhu uye zvirambidzo.
1. Tensile Property
Iyo tensile bvunzo inowanzoshandiswa kuyera iyobereka simba, tensile simba,uyeelongation yesimbi pombi yekuyedza chirongwa, uye inoshandiswa zvakanyanya muzvinhu zvezvinhu zvebvunzo.
ATafura 5 inopa huwandu hwakaverengerwa hudiki.
Ipo ukobvu hwemadziro huri pakati pehuviri huviri huri pamusoro, hudiki hwehurefu hwekurebesa hunotarwa neinotevera fomula:
Longitudinal, P91: E = 32t + 15.00 [E = 1.25t + 15.00]
kupi:
E = elongation mu2 in. kana 50 mm, %,
t = ukobvu chaihwo hwezvienzaniso, in. [mm].
2. Kuoma
Yakasiyana-siyana yekuomarara nzira dzekuyedza dzinogona kushandiswa, kusanganisira Vickers, Brinell, uye Rockwell.
Ukobvu hwemadziro <0.065 in. [1.7 mm]: Hapana bvunzo yekuomarara inodiwa;
0.065 in. [1.7 mm] ≤ rusvingo ukobvu <0.200 mukati. [5.1 mm]: Rockwell kuomarara bvunzo ichashandiswa;
Ukobvu hwemadziro ≥ 0.200 mukati [5.1 mm]: kushandisa sarudzo yeBrinell kuomarara bvunzo kana Rockwell kuomarara bvunzo.
Iyo Vickers kuomarara bvunzo inoshanda kune ese emadziro makubvu echubhu.Iyo nzira yekuyedza inoitwa zvinoenderana nezvinodiwa zveE92.
3. Flattening Test
Miedzo ichaitwa zvinoenderana neChikamu 20 cheASTM A999 standard.
4. Bend Test
Bend 180 ° pakupisa kwekamuri, hapana kuputika kuchaonekwa kunze kwechikamu chakakombama.
Saizi> NPS25 kana D/t ≥ 7.0: Kubhenda bvunzo kunofanirwa kuitwa pasina kuyedza kuyedza.
5. P91 Optional Experimental Programs
Zvinhu zvinotevera zvekuedza hazvidiwi bvunzo zvinhu, kana zvichidikanwa zvinogona kutsanangurwa nekutaurirana.
S1: Product Analysis
S3: Flattening Muedzo
S4: Metal Structure uye Etching Miedzo
S5: Photomicrographs
S6: Photomicrographs yeZvimedu Zvega
S7: Alternative Heat Treatment-Giredhi P91 Rudzi 1 uye Rudzi rwechipiri
Iyo P91 hydro bvunzo ichaenderana nezvinotevera zvinodiwa.
Kunze dhayamita＞10in.[250mm] uye ukobvu hwemadziro ≤ 0.75in.[19mm]: iyi inofanira kunge iri hydrostatic test.
Mamwe saizi ekuongororwa kwemagetsi asingaparadze.
Kune ferritic alloy simbi uye Stainless simbi machubhu, madziro anoiswa pasi pekumanikidzwa kusiri pasi pe.60% yezvakatarwa zvishoma goho simba.
Iyo hydro test pressure ichachengetwa kweinenge 5spasina kuvuza kana kumwe kukanganisa.
Hydraulic pressureinogona kuverengerwa uchishandisa formula:
P = 2St/D
P = hydrostatic test pressure mu psi [MPa];
S = pombi madziro kushushikana mu psi kana [MPa];
t = kutsanangurwa kwemadziro ukobvu, zita remadziro ukobvu zvinoenderana neyakatsanangurwa ANSI hurongwa nhamba kana 1.143 nguva yakataurwa kushomeka kwemadziro ukobvu, mukati. [mm];
D = inotsanangurwa kunze kwedhayamita, kunze kwedhayamita inoenderana neyakatsanangurwa ANSI pombi saizi, kana dhayamita yekunze yakaverengerwa nekuwedzera 2t (sezvinotsanangurwa pamusoro) kune yakataurwa mukati dhayamita, in. [mm].
P91 pombi inoongororwa nenzira yeE213 bvunzo nzira.Iyo E213 yakajairwa inonyanya kunetseka nezve ultrasonic bvunzo (UT).
Kana yakanyatso kutsanangurwa muhurongwa, inogona zvakare kuongororwa zvinoenderana neE309 kana E570 bvunzo nzira.
Iyo E309 yakajairwa inowanzobata nemagetsi (eddy yazvino) yekuongorora, nepo E570 iri nzira yekuongorora inosanganisira eddy yazvino arrays.
Kusiyana Kunobvumirwa muDiameter
Yepombi yakarairwa kutimukati dhayamita, iyo dhayamita yemukati haifaniri kusiyana kupfuura ± 1% kubva kune yakatsanangurwa mukati dhayamita.
Tubing yakaodha mukatiNPS [DN] kana madhayamita ekunzehaifanire kusiyanisa madhayamita ekunze kupfuura anotsanangurwa mumatafura ari pasi apa.
Kusiyana Kunobvumirwa muKukobvu Kwemadziro
Kuyera kwemadziro kuyerwa kuchaitwa uchishandisa mechanic calipers kana yakanyatso calibrated nodestructive yekuyedza michina yekurongeka kwakaringana.Muchiitiko chekupokana, kuyerwa kwakatarwa uchishandisa mechanical calipers kuchakunda.
Ukobvu hwemadziro hudiki uye dhayamita yekunze kuti iongororwe kutevedzera zvinodiwa nepombi yakarairwa neNPS [DN] uye nhamba yehurongwa inoratidzwa mu.ASME B36.10M.
Kukanganisa
Kusakwana kwepamusoro kunoonekwa sekuremara kana kwakapfuura 12.5% yezita remadziro ukobvu kana kudarika hudiki hwemadziro ukobvu.
Kusakwana
Mechanical marks, mabrasions, uye makomba, chero ipi zvayo kusakwana kwakadzika kupfuura 1/16 in. [1,6 mm].
Mako uye mabrasions anotsanangurwa sematambo etambo, dinges, ekutungamira mamaki, roll mamaki, kukwenya kwebhora, zvibodzwa, kufa mamaki, nezvimwe.
Kugadzirisa
Kukanganisa kunogona kubviswa nekukuya, chero iyo yakasara yemadziro ukobvu haisi pasi peiyo shoma madziro ukobvu.
Kugadzirisa kunogonawo kuitwa newelding asi kunofanirwa kuenderana nezvinodiwa zveA999.
Zvose zvinogadzirisa welds muP91 zvichaitwa neimwe yezvinotevera zvekushongedza uye zvinoshandiswa: SMAW, A5.5 / A5.5M E90XX-B9: SAW, A5.23 / A5.23M EB9 + neutral flux;GTAW, A5.28/A5.28M ER90S-B9;uye FCAW A5.29/A5.29M E91TI-B9.Pamusoro pezvo, huwandu hweiyo Ni + Mn yemukati yezvese zvinodyiwa zvinoshandiswa kugadzira weld kugadzirisa P91 Type 1 uye Type 2 haipfuure 1.0%.
P91 pombi inofanira kurapwa kupisa pa1350-1470 °F [730-800°C] mushure mekugadzirisa weld.
Iyo yekunze pamusoro pepombi yesimbi yakaongororwa ichave ine zvinotevera zvinhu:
Zita remugadziri kana trademark;nhamba yakajairika;grade;kureba uye chiratidzo chekuwedzera"S".
Iyo mamaki ye hydrostatic pressure uye isiri-yekukuvadza kuyedzwa mutafura iri pazasi inofanirawo kuverengerwa.
Kana iyo pombi yakagadziriswa ne welding, ichaiswa chiratidzo "WR".
p91 Rudzi (Rudzi rwekutanga kana Rudzi rwechipiri) runofanira kuratidzwa.
EN 10216-2: X10CrMoVNb9-1 kana 1.4903;
JIS G 3462: STPA 28;
GB/T 5310: 10Cr9Mo1VNb;
Aya akaenzana ari padyo zvakanyanya mukugadzirwa kwemakemikari uye michina zvivakwa kune ASTM A335 P91.
Material: ASTM A335 P91 pombi yesimbi isina musono;
OD: 1/8"- 24";
WT: maereranoASME B36.10zvinodiwa;
Purogiramu: SCH10, SCH20, SCH30,SCH40, SCH60,SCH80, SCH100, SCH120, SCH140 uye SCH160;
Identification:STD (yakajairwa), XS (yakawedzera-yakasimba), kana XXS (yakapetwa kaviri-yakasimba);
Customization: Non-standard pombi saizi dziripowo, customized saizi anowanikwa pakukumbira;
Urefu: Yakananga uye yakasarudzika kureba;
IBR Certification: Tinogona kubata yechitatu-bato rekuongorora sangano kuti titore IBR certification zvinoenderana nezvaunoda, masangano edu ekuongorora ekubatana ari BV, SGS, TUV, nezvimwewo;
End: Flat kupera, beveled, kana composite pombi kupera;
Surface: Chiremba pombi, pendi, uye kumwe kudzivirira kwenguva pfupi, kubvisa ngura uye kukwenenzverwa, galvanized uye mapurasitiki akaputirwa, uye kumwe kuchengetedzwa kwenguva refu;
Packing: Wooden kesi, simbi bhandi kana simbi waya kurongedza, epurasitiki kana simbi pombi end dziviriro, nezvimwe.
