ASTM A335 P9, izwi kandi nka ASME SA335 P9, ni umuyoboro wa ferritic alloy ibyuma bitagira umuyaga hamwe na serivisi yubushyuhe bwo hejuru hamweUNS No K90941.
Ibintu bivangavanze ni chromium na molybdenum.Chromium iboneka kuva 8.00 - 10.00%, mugihe molybdenum iri murwego rwa 0.90% - 1.10%.
P9Ifite imbaraga nziza kandi irwanya ruswa ahantu h'ubushyuhe bwo hejuru kandi ikoreshwa cyane mu byotsa, ibikoresho bya peteroli, hamwe na sitasiyo z'amashanyarazi aho hakenewe ubushyuhe bwinshi hamwe n’umuvuduko mwinshi.
⇒ Ibikoresho: ASTM A335 P9 / ASME SA335 P9 imiyoboro idafite ibyuma.
⇒Hanze ya diameter: 1/8 "- 24".
⇒Ubunini bw'urukuta: ASME B36.10 ibisabwa.
⇒Gahunda: SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH140 na SCH160.
⇒Kumenyekanisha: STD (isanzwe), XS (birenze-bikomeye), cyangwa XXS (inshuro ebyiri-zikomeye).
⇒Uburebure: Uburebure bwihariye cyangwa budasanzwe.
⇒Guhitamo: Diameter idasanzwe yo hanze, uburebure bwurukuta, uburebure, nibindi ukurikije ibisabwa.
⇒Ibikoresho: Turashobora gutanga ibintu bimwe byunamye, kashe ya flanges, nibindi bicuruzwa bifasha imiyoboro.
⇒Icyemezo cya IBR: Icyemezo cya IBR kirashobora gutangwa mugihe bikenewe.
⇒Iherezo: Impera yikibaya, impera ya beveled, cyangwa umuyoboro wanyuma.
⇒Gupakira: ikibaho cyibiti, umukandara wibyuma cyangwa ibyuma bipakira ibyuma, plastike cyangwa ibyuma birangiza kurinda.
⇒Ubwikorezi: ninyanja cyangwa indege.
Umuyoboro w'icyuma ASTM A335 ugomba kuba udafite ikidodo.
Umuyoboro w'icyuma utagira ikizinga ni umuyoboro w'icyuma udafite gusudira hose.
Kubera ko umuyoboro w'icyuma udafite ikidodo udafite ubudodo mu miterere yacyo, birinda ingaruka zishobora guhungabanya umutekano zishobora kuba zifitanye isano n’ibibazo by’ubuziranenge.Iyi mikorere ituma umuyoboro udafite uburinganire ushobora guhangana n’umuvuduko mwinshi, kandi imiterere yimbere yimbere ikomeza kurinda ubusugire numutekano byumuyoboro ahantu h’umuvuduko mwinshi.
Mubyongeyeho, ubwizerwe bwa ASTM A335 tubing bwongerwaho hiyongereyeho ibintu byihariye bivanga kubushyuhe bwo hejuru hamwe nubushyuhe bukabije.
Ubwoko bwo kuvura ubushyuhe buboneka kubikoresho bya P9 birimo annealing yuzuye cyangwa isothermal annealing, kimwe nibisanzwe hamwe nubushyuhe.Igikorwa gisanzwe kandi gishyuha gifite ubushyuhe bwa 1250 ° F [675 ° C].
Ibyingenzi byingenzi bivanga P9 niCrnaMo, arizo chromium-molybdenum.
Cr (Chromium): Nkibintu byingenzi bigize amavuta, Cr itanga imbaraga zubushyuhe bwo hejuru cyane hamwe no kurwanya okiside.Ikora firime ya chromium oxyde yuzuye hejuru yicyuma, ikongerera ituze no kwangirika kwumuyoboro mubushyuhe bwinshi.
Mo (Molybdenum): Kwiyongera kwa Mo bitezimbere cyane imbaraga nubukomezi bwa alloys, cyane cyane mubushyuhe bwo hejuru.Mo ifasha kandi kunoza imbaraga zo gukurura ibikoresho, ni ukuvuga ubushobozi bwo kurwanya ihindagurika mugihe ubushyuhe bumaze igihe.
Ibintu byiza
P5, P5b, P5c, P9,P11, P15, P21, na P22: Imbaraga zingana kandi zitanga umusaruro ni zimwe.
P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, na P22: Kurambura kimwe.
A.Imbonerahamwe 5 itanga agaciro ntarengwa kabaruwe.
Aho uburebure bwurukuta buri hagati yagaciro kombi hejuru, agaciro ntarengwa kuramba kugenwa na formula ikurikira:
Longitudinal, P9: E = 48t + 15.00 [E = 1.87t + 15.00]
Guhindura, P9: E = 32t + 15.00 [E = 1.25t + 15.00]
aho:
E = kurambura muri 2 muri. Cyangwa 50 mm,%,
t = ubunini nyabwo bwikigereranyo, muri. [mm].
Gukomera
P9 ntisaba kwipimisha gukomera.
P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, P22, na P921: Nta kizamini gikomeye gisabwa.
Iyo diameter yo hanze> 10 muri. [250 mm] n'ubugari bw'urukuta ≤ 0,75 muri.
Umuvuduko wikigereranyo urashobora kubarwa ukoresheje ikigereranyo gikurikira.
P = 2St / D.
P= igitutu cya hydrostatike muri psi [MPa];
S= imiyoboro y'urukuta muri psi cyangwa [MPa];
t= uburebure bwurukuta rwerekanwe, uburebure bwurukuta rwizina ukurikije umubare wateganijwe wa ANSI cyangwa inshuro 1.143 zuburebure bwurukuta ntarengwa, muri. [mm];
D= byerekanwe hanze ya diametre, hanze ya diameter ihuye nubunini bwa ANSI bwagenwe, cyangwa diameter yo hanze ibarwa wongeyeho 2t (nkuko byasobanuwe haruguru) kumurambararo wimbere, muri. [mm].
Igihe cyikigereranyo: komeza byibuze 5s, nta kumeneka.
Iyo umuyoboro utagomba gutwarwa na hydroteste, hagomba gukorwa ikizamini kidasenya kuri buri muyoboro kugirango umenye inenge.
Ikizamini kidasenya ibikoresho bya P9 kigomba gukorwa nuburyo bumweE213, E309 or E570.
E213: Imyitozo yo Kwipimisha Ultrasonic ya Metal Umuyoboro na Tubing;
E309: Imyitozo ya Eddy Ikizamini Cyibicuruzwa Byuma Byuma ukoresheje Magnetic Saturation;
E570: Imyitozo ya Flux Ikizamini cya Ferromagnetic Steel Tubular Products;
Impinduka zemewe muri Diameter
Gutandukana kwa Diameter birashobora gushyirwa mubice ukurikije 1. ukurikije diameter y'imbere cyangwa 2. ukurikije diameter nominal cyangwa hanze.
1. Diameter y'imbere: ± 1%.
2. NPS [DN] cyangwa diameter yo hanze: Ibi bihuye no gutandukana byemewe mumeza hepfo.
Impinduka zemewe muburyo bwurukuta
Ubunini bwurukuta rwumuyoboro umwanya uwariwo wose ntibushobora kurenga kwihanganira.
Uburebure bwurukuta ntarengwa na diameter yo hanze kugirango bigenzurwe kugirango hubahirizwe iki cyifuzo cyumuyoboro watumijwe na NPS [DN] numero yingengabihe irerekanwa muriASME B36.10M.
Ibiri mu kimenyetso: Izina ry'umukoresha cyangwa ikirango;umubare usanzwe;amanota;uburebure n'ikimenyetso cy'inyongera "S".
Ibimenyetso byumuvuduko wa hydrostatike hamwe nigeragezwa ridasenya mumeza hepfo nabyo bigomba kubamo.
Ikimenyetso: Ikimenyetso kigomba gutangira hafi santimetero 12 (300 mm) uhereye kumpera y'umuyoboro.
Ku miyoboro igera kuri NPS 2 cyangwa munsi ya metero 3 (1 m) z'uburebure, amakuru yerekana amakuru ashobora kuba yometse kumurongo.
Umuyoboro w'icyuma ASTM A335 P9 ukoreshwa cyane mubyuma, ibikoresho bya peteroli bikoresha ingufu za peteroli, nibindi, bigomba kwihanganira ubushyuhe bwinshi numuvuduko mwinshi kubera ubushyuhe bwabyo bwo hejuru hamwe n’umuvuduko mwinshi.
Amashanyarazi: Cyane cyane mumashanyarazi nyamukuru hamwe no gusubiramo ibyuma bya supercritical na ultra-supercritical boiler kubushyuhe bwinshi cyane nigitutu.
Ibikoresho bya peteroli: Nka miyoboro ya firimu hamwe nubushyuhe bwo hejuru, bukoresha imyuka yubushyuhe bwo hejuru hamwe nimiti, bisaba ibikoresho bifite ubushyuhe bwiza kandi birwanya ruswa.
Amashanyarazi: Kumashanyarazi nyamukuru hamwe nubushyuhe bwumuvuduko mwinshi, kimwe no kuvoma turbine imbere kugirango uhangane nigihe kirekire cyubushyuhe bwinshi nigitutu.
P9 Ibikoresho bifite amanota yabyo muri sisitemu zitandukanye zigihugu.
EN 10216-2: 10CrMo9-10;
GB / T 5310: 12Cr2Mo;
JIS G3462: STBA 26;
ISO 9329: 12CrMo195;
GOST 550: 12ChM;
Mbere yo guhitamo ikintu icyo aricyo cyose gihwanye, birasabwa ko hakorwa igereranya ryimikorere nigeragezwa kugirango harebwe niba ibindi bikoresho byujuje ibisabwa mubishushanyo mbonera.
Kuva yashingwa mu 2014,Botop Steelyabaye umuyobozi wambere utanga imiyoboro ya karubone mumajyaruguru yUbushinwa, izwiho serivisi nziza, ibicuruzwa byiza, nibisubizo byuzuye.
Isosiyete itanga imiyoboro inyuranye y’ibyuma bya karubone n’ibicuruzwa bifitanye isano na byo, birimo icyuma, ERW, LSAW, hamwe n’icyuma cya SSAW, ndetse n’umurongo wuzuye w’ibikoresho bya flanges na flanges.Ibicuruzwa byayo bidasanzwe birimo kandi amavuta yo mu rwego rwo hejuru hamwe na austenitis ibyuma bitagira umuyonga, bigenewe guhuza ibyifuzo byimishinga itandukanye.
Nyamuneka nyamuneka twandikire niba hari ibyo ukeneye cyangwa ibibazo bijyanye nicyuma.Dutegereje kwakira amakuru yawe kandi dutegereje kugufasha.
