Lub zog tawm los ntawm ASME SA662 Qib C yog dab tsi?

Lub zog tawm los ntawm ASME SA662 Qib C yog dab tsi?

Qhov tsawg kawg nkaus yield zog ntawmASME SA662 Qib Csiab nkoj steel phaj yog295 MPa (43 ksi). Nws yog cov pa roj carbon -manganese- silicon steel tsim los rau nruab nrab thiab qis kub kev pabcuam nrog lub zog tensile ntau ntawm 485-620 MPa.

ASME SA662 Qib C yog kev tsim- qib steel phaj tsim los rau siab - zoo fusion vuam hauv kev tsim khoom hnyav - lub luag haujlwm siab ciam teb. Ua raws li kev tswj hwm nruj ntawm ASME Tshooj II, nws yog tus cwj pwm los ntawm nws cov manganese siab - mus rau - carbon ratio uas txhim kho weldability thiab txo qhov kev pheej hmoo ntawm qhov txias txias hauv tshav kub - cuam tshuam cheeb tsam (HAZ). Vim hais tias nws yog ib tug tag nrho tua, nplua -cov hlau tsis muaj hlau, nws muab cov lus teb ruaj khov rau qhov kub siab ntawm arc vuam, kom ntseeg tau tias cov pob qij txha tiav ua tau raws li cov qauv nruj nruj raws li cov hlau hauv paus, txawm tias nyob hauv tuab- cov ntu phab ntsa.

Cov yam ntxwv tseem ceeb

Tsawg Carbon sib npaug:Tsim los txo qis kev pheej hmoo ntawm hydrogen-vim tawg thaum lub sij hawm vuam ntawm ciam teb siab.

Manganese Strengthening:Cov qib manganese siab dua (0.85--1.50%) txhim kho cov khoom siv hardenability yam tsis muaj qhov nkig ntawm cov pa roj carbon ntau.

Kev huv huv (Tuag Tag Nrho):Ua nrog tsawg impurities (P thiab S) los tiv thaiv kub - tawg thiab laminations thaum dov thiab fabrication.

PWHT stability:Khaws nws cov khoom siv kho tshuab thiab cuam tshuam qhov hnyav txawm tias tom qab ntau qhov Post-Weld Heat Treatment (PWHT) cycles.

Qib Qib

ASME:American Society of Mechanical Engineers.

SA:Prefix rau cov khoom siv Ferrous specifications.

662:Tus qauv rau C-Mn-Si steel rau qis- kev pabcuam kub.

Qib C:Lub siab - lub zog muaj zog nyob rau hauv SA662 specification.

Kev sib piv (vs. SA299 Qib A)

Lub Hom Phiaj Kub:SA299 yog rau siab - kub boiler kev pab cuam, whereas SA662 Qib C yog rau qis - mus rau - nruab nrab cov hlab ntsha.

Kev sib piv Ductility:SA662 Qib C yog nruj me ntsis zoo-grained rau toughness, thaum SA299 tsom rau carbon-raws li lub zog rau chav nruas.

Chemical Philosophy:SA662 Qib C siv manganese rau lub zog; SA299 siv cov pa roj carbon ntau dua uas tuaj yeem ua rau vuam nyuaj dua.

Impact Testing:SA662 Qib C feem ntau yuav dhau qhov yuav tsum tau kuaj xyuas rau sub-zero service dua SA299.

Daim Ntawv Thov Kev Sib Tham

Boiler Chav Separators:Cov hlab ntsha cylindrical siv los cais cov dej saturated los ntawm cov dej hauv nruab nrab -siab boilers.

Desalination Siab Chambers:Siab - lub plhaub siab siv nyob rau hauv lub flash evaporation theem ntawm dej desalination.

Nitrogen Storage Units:Pressurized tanks siv nyob rau hauv cov zaub mov preservation thiab electronics manufacturing chaw.

Thaum muaj xwm ceev Shutdown (ESD) Accumulators:Siab - lub tog raj kheej siab siv los khaws lub zog rau kev ua haujlwm kub ceev.

Chemical Reactor Plhaub:Thawj qhov siab- khaws cov plhaub rau cov reactors hauv cov nroj tsuag tshuaj synthesis.

Qhov cuam tshuam toughness ntawm ASME SA 662 Qib C yog dab tsi?
ASME SA 662 Qib Cmuab txauscuam ​​tshuam toughnessntawmnruab nrab kub, ua rau nws resistant rau nkig tawg nyob rau hauv ib txwm ua hauj lwm tej yam kev mob. Txawm li cas los xij, nws tsis yog tsim los siv rau hauvDaim ntawv thov cryogeniclos yog ib puag ncig uas kub heev tuaj yeem cuam tshuam nws qhov toughness. Rau qis-kev siv kub, cov ntaub ntawv zoo liTIAB SA 537los yogTIAB SA 516nrog txhim khu kev cuam tshuam kuj raug pom zoo.

Dab tsi yog qhov zoo ntawm kev siv ASME SA 662 Qib C hauv kev tsim cov hlab ntsha siab?
Lub ntsiab kom zoo dua ntawm kev sivASME SA 662 Qib Cnyob rau hauv siab hlab ntsha tsim yog nwsnqi -effectivenessua ke nrogzoo zog, ductility, thiabweldability. Cov khoom no ua rau nws zoo tagnrho raunruab nrab mus rau siab -siabib puag ncig, xws li hauvchemical uathiabtsim hluav taws xob. Nwstawvxyuas kom meej tias nws muaj peev xwm tiv taus txhua yam kev ntxhov siab, thaum cov khoom siv tau yooj yim tso cai rau nws los ua cov duab sib txawv rau cov khoom siv sib txawv.

Dab tsi yog qhov txwv ntawm ASME SA 662 Qib C?
ThaumASME SA 662 Qib Cyog qhov zoo tagnrho rau nruab nrab - kev siv siab, nws yogtsis haumrausiab heevlos yogsiab -kubib puag ncig. Rau cov ntawv thov xav tausiab -lub zogcov ntaub ntawv los yog cov uas tshaj800℃F (427 degree), cov ntaub ntawv zoo liTIAB SA 516los yogTIAB SA 537yuav tsum xav txog kev txhim khocreep kujthiabsiab -kub muaj zog.

SA662 Qib C siab hlab ntsha steel tshuaj muaj pes tsawg leeg%

SA662 Qib C siab hlab ntsha hlau Mechanical zog

1 Dab tsi kev lag luam feem ntau siv ASME SA 662 Qib C?
ASME SA 662 Qib Cyog siv feem ntau hauv kev lag luam uas xav tau cov hlab ntsha siab thiab boilers ua haujlwm ntawmnruab nrab mus rau qhov kub thiab txias. Nws yog feem ntau pom nyob rau hauv lubtshuaj, petrochemical, roj & roj, thiabtsim hluav taws xobindustries, qhov twg nws tshuav ntawmzogthiabductilityua rau nws zoo tagnrho rau fabrication ntawm cov khoom raug rau txhua yam thiab thermal stresses.

2 Cov tshuaj muaj pes tsawg leeg ntawm ASME SA 662 Qib C yog dab tsi?
Covtshuaj muaj pes tsawg leegntawmASME SA 662 Qib Cfeem ntau suav nrogCov pa roj carbon (0.18–0.23%), Manganese (0.60–0.90%), Silicon (0.15–0.40%), Phosphorus(tsawg dua lossis sib npaug li 0.035%), thiabSulfur(tsawg dua lossis sib npaug li 0.035%). Cov ntsiab lus no pab kom muaj kev sib npaug ntawmzog, ductility, thiabweldability, ua kom haum raunruab nrab mus rau siab -siabkev siv hauvboilersthiabcov hlab ntsha siab.

3 Dab tsi yog qhov zoo ntawm kev siv ASME SA 662 Qib C hauv kev tsim cov hlab ntsha siab?
Lub ntsiab kom zoo dua ntawm kev sivASME SA 662 Qib Cnyob rau hauv siab hlab ntsha tsim yog nwsnqi -effectivenessua ke nrogzoo zog, ductility, thiabweldability. Cov khoom no ua rau nws zoo tagnrho raunruab nrab mus rau siab -siabib puag ncig, xws li hauvchemical uathiabtsim hluav taws xob. Nwstawvxyuas kom meej tias nws muaj peev xwm tiv taus txhua yam kev ntxhov siab, thaum cov khoom siv tau yooj yim tso cai rau nws los ua cov duab sib txawv rau cov khoom siv sib txawv.

4 Dab tsi yog qhov weldability ntawm ASME SA 662 Qib C?
ASME SA 662 Qib Cmuaj zooweldability, ua rau nws tsim nyog rau kev koom nrog cov txheej txheem vuam xws liSMAW, GTAW, thiabSAW. Txawm li cas los xij, cov txheej txheem vuam kom raug thiabpreheatingyog qhov tseem ceeb, tshwj xeeb tshaj yog rau cov ntu tuab, txhawm rau tiv thaiv kev tawg thiab ua kom cov khoom ruaj khov tom qab vuam.

5 Dab tsi yog qhov ntsuas kub siab tshaj plaws rau ASME SA 662 Qib C?
Qhov siab tshaj plaws kub txwv rauASME SA 662 Qib Cfeem ntau yog nyob ib ncig ntawm800℃F (427 degree). Tshaj li qhov ntsuas kub no, cov khoom siv yuav pib poob nws lub zog thiab ua rau muaj kev cuam tshuam ntau duankag. Rau cov ntawv thov uas muaj qhov kub siab dua, alloys xws liTIAB SA 516los yogSIB 204yog tsim nyog, raws li lawv muab kev ua tau zoo dua nyob rau hauv huab cua kub tej yam kev mob.

6 Lub zog tensile ntawm ASME SA 662 Qib C yog dab tsi?
Covtensile zogntawmASME SA 662 Qib Cfeem ntau yog nyob ntawm70-90 ksi (485-620 MPa). Qib tensile lub zog no ua rau nws haum raunruab nrab mus rau siab -siabdaim ntawv thov. Cov khoom muaj peev xwm tiv taus txhua yam kev ntxhov siab thiab thermal loads muaj nyob rau hauv cov hlab ntsha siab, cov cua kub exchangers, thiab boilers thaum tuav nws lub zog yam tsis muaj deforming nyob rau hauv siab.

7 Dab tsi yog qhov yuav tsum tau ua tom qab-weld heat treatment (PWHT) rau ASME SA 662 Qib C?
Yog lawm,post-weld kev kho cua sov (PWHT)feem ntau yuav tsum tau rauASME SA 662 Qib C, tshwj xeeb tshaj yog rau cov seem tuab. PWHT pab tautxo cov kev ntxhov siab seemthiab txhim kho cov khoom sivweldabilitythiabtawv. Cov ntawv tshaj tawm -weld kub kho kub yog nyob ib ncig ntawm1100-1200 ° F (593-649 ° F), nyob ntawm qhov tuab ntawm cov khoom thiab cov kev thov tshwj xeeb.

Hu rau tam sim no

Yog tias koj xav paub ntxiv txog ASME SA 662 Qib C GNEE cov khoom, koj tuaj yeem xa email rau toinfo@gneesteels.com . Peb zoo siab tshaj los pab koj.