Sa543grbcl1 / sa543grbclr2 / sa43grbclCClCCCCCCCCCCCCCCCCCCCCCCCCCCCS Tsim rau Cov Hlab Hlab Siab thiab Lwm Yam Khoom Siv Siab. Nws yog feem ntau siv rau welded siab cov hlab ntsha thiab cov khoom siv hauv cov quenched thiab tempered (qt) mob. Cov txheej txheem alloy no feem ntau yog teev rau cov qauv hlau nrog ib daim phiaj hlau nrog lub tuab ntawm 50 hli lossis ntau dua, poob qis ntawm Asmeskas cov khoom siv nkoj.
Cov Nta Tseem Ceeb:
Lub zog siab tensile lub zog thiab tawv.
Haum rau high - h siab thiab siab -}} qhov chaw ib puag ncig.
Feem ntau siv nyob rau hauv cov khoom lag luam loj, xws li giab tshuab ntsuas, nuclear reactors, thiab petrochemical ua nroj tsuag.
Cov ntsiab lus tseem ceeb:
Khoom Hom: Quenched thiab tempered ni {- b - Kuv mo alloy steel phaj rau siab cov hlab thiab boilers.
Tus qauv: Ua raws liASTM A543 / A543m(Los yog asme sa-543 / sa-543m).
Tus me nyuam: Feem ntau muab rau hauvquenched thiab tempered (qt)Mob, tab sis kuj tseem yuav muaj nyob rau hauv normalized, normized + tempered, los yog tswj dov lub cev raws li kev thov.
Tshuaj Muaj Tshuaj:
Npib tsib caug (ni): 0.40–0.70%
Chromium (cr): 0.80–1.10%
Molybdenum (mo): 0.45–0.60%
Carbon (c): Tsawg dua los yog sib npaug rau 0.25%
Manganese (MN): 1.15–1.50%
Silicon (si): 0.15–0.50%
P & S: Tsawg dua los yog sib npaug rau 0.025% (p), tsawg dua lossis sib npaug rau 0.010% (s)
Cov Khoom Siv Neeg Kho Tshuab:
Lub zog tensile: 620-795 MPa (Chav Kawm 2)
Paib lub zog: Ntau dua los yog sib npaug rau 485 mpa
Elongation: Ntau dua los yog sib npaug rau 18%
Kev Cuam Tshuam: Charpy v - tsis tau sim ntawm -20℃lossis qis dua (txawv dua (txawv dua (kev sib txawv (sib txawv (sib txawv ntawm cov chav kawm).
Cov txheej txheem kev ua tau zoo:
Zoo tshajhwj txwvThiabmuaj meej.
Haum rauhigh - h siab thiab siab - kubCov ntawv thov (piv txwv li, nuclear reactors, petrochemical nroj tsuag).
Kev txiav txim yuav tsum tau ua: Qhia cov tuab, qhov loj me, kev kho cua sov, thiab kev ntsuam xyuas ntxiv (piv txwv li, ntaub ntawv tshuaj ntsuam ntxiv).
Cov Ntawv Thov:
Lub hwj chim nuclear: Reactor Siab Hlav, Chav Generators Chav.
Petrochemical: Reactors, kev hloov pauv cua sov, siab -} siab piping.
Fais fab nroj tsuag: Boiler drums, Cheebtsam ua haujlwm.
Sau ntawv:
Hoob 1 (CL1): Qis tensile lub zog (105 ksi / 725 mpa).
Hoob 2 (CL2): Nruab nrab lub zog (115 ksi / 795 mpa).
Hoob 3 (CL3): Lub zog siab (90 ksi / 620 mpa).
Kev xa khoom thiab kev kho cua sov ntawm sa543grbcl1 / sa43grbcl2 / sa543grbclcclcclcclcllc daim hlau
Quenching thiab tempering.Cov phiaj yuav tsum tau xa tawm hauv qhov kev xav thiab qhov kub nyhiab tshwj tsis yog muaj kev pom zoo ntawm cov hlau zeb thiab tus neeg yuav khoom lossis cov ntaub thaiv.
Txhua daim hlau yuav tsum tau kev kho cua sov. Cov phiaj yuav tsum tau rhaub kom muaj lub sijhawm txo qis uas tsim nyog los ua kom muaj kev sib txig tsis muaj zog, thiab tom qab ntawd kev tsim cov kua dej los ntawm cov txheej txheem sib xyaw lossis cov txheej txheem sib xyaw. Tom qab quenching, cov phiaj yuav tsum yog cua sov los ntawm cua sov kom kub tsis muaj qis dua 595℃kom ua tiav cov khoom uas xav tau. Lub sijhawm tuav lub sijhawm thaum lub sijhawm temperinging yuav tsum tsis pub tsawg tshaj li 1.2 feeb ib millimeter ntawm tuab, tab sis tsis tsawg tshaj 0.5 teev.
Rau cov phaj nrog cov tuab tshaj 100 hli, ua ntej-}}}}}}} {1010 10 Qib ua ntej kev kho mob cua sov.
Yog hais tias tus neeg yuav khoom tshwj xeeb rau kev kho cua sov saum toj no, tus neeg muag khoom yuav sim sim ua rau cov phiaj kub ntawm qhov kub tsis muaj qis dua 595℃ua ntej xa khoom.
Cov ntaub ntawv nruj me ntsis hauv kev ua raws li ASME Sec. Viii Div.2 Yuav Tsum Tau
Cov khoom yuav ua raws li cov lus qhia tshwj xeeb hauv qab no:
Kev cuam tshuam kev cuam tshuam ntawm -29℃(Tshooj 3.3.2 Kev Ntsuas Kev Cuam Tshuam):
Npaj cov ntawv ntsuas:Txhua yam hnoos qeev yuav tsum npaj los ntawm cov khoom siv kawg -}}}}}} }.7.2.
Tus naj npawb ntawm cov kev xeem thiab kuaj cov hnoos qeev:
Ib qho charpy v - cov neeg tsis tshua muaj kev cuam tshuam peb cov hnoos qeev.
Rau li - rolled daim hlau, ib qho kev sim los ntawm txhua phaj.
For heat-treated plates (normalized, normalized and tempered, quenched and tempered), one test from each plate in the heat-treated condition.
Rau cov tuav, yeeb nkab, tubing, cov ntu, forged seem lossis cov khoom siv, ib qho kev sim los ntawm txhua qhov kev kho cua sov.
Tus naj npawb ntawm cov kev xeem yuav tsis tsawg dua li cov cai ntawm cov ntaub ntawv tshwj xeeb.
Cov chaw nyob thiab kev taw qhia ntawm cov hnoos qeev:
Tib yam li 3.11.7.2 thiab 3.11.7.3.
Cov quav dev los ntawm cov phiaj yuav tsum tau hloov mus rau qhov kawg ntawm kev dov.
Rau kev zam txim thiab cov yeeb nkab, transverse rau cov kev taw qhia ntawm kev ua haujlwm loj (saib daim duab 3.14).
Qhov tsawg kawg nkaus rau kev nthuav dav tom ntej:As per 3.11.2.1 (b) (2).
Rov qab los:Yuav tsum raws li 3.11.7.6.
