ASTM A533 Qib D piv rau ASTM A516 Qib 70 li cas?
ASTM A533 Qib D yog manganese-molybdenum-nickel alloy steel tsim rau siab- lub zog, tuab- ntu cov hlab ntsha (nuclear reactor hlab ntsha), whereas ASTM A516 Qib 70 yog cov pa roj carbon-manganese{9}} qhov kub thiab txias A533 muab zoo dua toughness, muaj zog dua nyob rau hauv tuab seem, thiab yog quenched / tempered, thaum A516 yog optimized rau weldability thiab notch toughness.
ASTM A533 Qib D yog dab tsi?yog lub siab tshaj plaws lub nkoj steel uas ua raws li cov kev cai nruj ntawm ASME Boiler thiab Pressure Vessel Code. Nws yog siv thaum cov npoo kev nyab xeeb yuav tsum siab heev, xws li nyob rau hauv cov hlab ntsha uas muaj kev phom sij lossis siab - cov kua dej kub.
Cov yam ntxwv tseem ceeb:
Kev Ntsuas Toughness:Cov phaj feem ntau raug rau Charpy V-kev ntsuas ntsuas kom ntseeg tau tias lawv yuav tsis tawg thaum muaj kev cuam tshuam tam sim lossis qhov kub thiab txias.
High Yield-rau-Tensile Ratio:Muab tus qauv deformation uas tuaj yeem kwv yees ua ntej tsis ua haujlwm, uas yog qhov tseem ceeb ntawm kev nyab xeeb rau lub tshuab siab.
Uniformity:Lub tshuab nqus tsev degassing feem ntau yog siv rau hauv cov txheej txheem melting kom ntseeg tau tias cov hlau tsis huv thiab tsis sib xws.
Qib Qib:
ASTM A533 Cov Lus Qhia:Txheem rau Mn-Mo-Ni alloy nkoj phaj.
Qib D:Ni-Cr-Mo alloy variant.
Kev sib piv (ASTM A533 Qib D vs A516 Qib 60)
Lub zog: A533 Qib D muaj siab duayield zog(690 MPa) dua A516 Qib 60 (205-275 MPa).
Toughness: A533 Qib D zoo tshaj hauvqis -kubtoughness, whereas A516 Qib 60 feem ntau siv nyob rau hauvnruab nrab-kubdaim ntawv thov.
Daim ntawv thov: A533 Qib D yog tsim raunuclear reactorsthiabcryogenic cia, thaum A516 Qib 60 yog siv raugeneral - lub hom phiaj cov hlab ntsha.
Daim Ntawv Thov Kev Sib Tham
Cov hlab ntsha siabraunuclear reactors
Cryogenic tanks
Heavy-lub luag haujlwm machineryhauvroj thiab rojsectors
Cov kav dejhauvchemical uanroj tsuag
High-siab boilers
Kub exchangersrau kev siv tshuab
Industrial reactorsua haujlwm ntawm kev ntxhov siab
ASTM A533 Qib D puas tuaj yeem siv rau hauv cov ntawv thov cryogenic?
Yog lawm, ASTM A533 Qib D yog qhov zoo rauDaim ntawv thov cryogenicxws liLNG (liquefied natural gas) ciathiabcryogenic tanks. Nwstiv thaiv brittle puasntawm qhov kub thiab txias, ua ke nrog nwszog, xyuas kom meej tias nws tuaj yeem tiv taus txias txias yam tsis poob nwsstructural kev ncaj ncees, uas yog qhov tseem ceeb raukev ua haujlwm nyab xeebnyob rau hauv cov cheeb tsam no.
Dab tsi yog qhov txawv ntawm ASTM A533 Qib D thiab ASTM A516 Qib 70?
ASTM A533 Qib D muaj asiab zog tawm losthiab yog ntau haum rauqis -kubib puag ncig piv rau ASTM A516 Qib 70. Thaum ob qho tib si siv raucov hlab ntsha siab, A516 Qib 70 feem ntau yog ua haujlwm rau ntau dua - lub hom phiaj kev siv ntawm qhov kub nruab nrab, qhov A533 Qib D yog qhov nyiam raucryogenic thiab siab -kev siv siabqhov twgtawvyog qhov tseem ceeb.
Dab tsi yog qhov cuam tshuam toughness ntawm ASTM A533 Qib D?
Covcuam tshuam toughnessntawm ASTM A533 Qib D yog qhov zoo heev, ua rau nws haum rauqis -kubib puag ncig. Nws raug soj ntsuam kom ua tau zoo ntawm qhov kub thiab txias li tsawg-196 degree. Qhov nolow -kub toughnessxyuas kom meej tias cov hlau tuaj yeem tiv taus qhov cuam tshuam los yog poob siab yam tsis tau ua nkig, uas yog qhov tseem ceeb hauv kev lag luam xws licryogenicsthiabnuclear reactors.
|
Qib |
Cov tshuaj tseem ceeb ntawm A533 Qib D CL3 |
||||||
|
C |
Si |
Mn |
P |
S |
Mo |
Ni |
|
|
A533GrDCl3 |
0.25 |
0.13/ 0.45 |
1.07/ 1.62 |
0.035 |
0.035 |
0.41/ 0.64 |
0.17/ 0.43 |
ASTM A533 Qib D txhua yam khoom;
|
Qib |
Tensile zog (MPa) ksi |
Yield zog (MPa) ksi MIN |
% Elongation 2 hauv. (50mm) MIN |
|
D |
(690-860) 80-100 |
(570) 83 |
16 |
1. Cov ntsiab lus ntawm ASTM A533 Qib D yog dab tsi?
ASTM A533 Qib D yog tsim los ntawm kev sib xyaw ua kecarbon, manganese, silicon, thiab alloying ntsiab xws linpib tsib xee, chromium, thiabmolybdenum. Qhov kev sib xyaw ua ke no txhim khozog, tawv, thiabtiv thaiv brittle puas. Cov ntsiab lus no kuj txhim kho nwscorrosion kujnyob rau hauv ib puag ncig hnyav, ua rau nws zoo tagnrho raucov hlab ntsha siab, nuclear reactors, thiabcryogenic cia tanks.
2. ASTM A533 Qib D ua haujlwm li cas hauv kev thauj khoom cyclic?
ASTM A533 Qib D ua tau zoo heev hauv qabcyclic loading. Nwssiab yield zogthiabtawvcia nws tiv taus duakev ntxhov siabthiabmobtsis muaj qhov tseem ceeb degradation. Cov yam ntxwv no ua rau nws zoo - haum raucov hlab ntsha siab, cov kav dej, thiab lwm yam khoom uas raug raufluctuating mechanical loadsdhau lub sij hawm ncua, xws li hauvoffshore platformslos yogfais fab nroj tsuag.
3. ASTM A533 Qib D puas tuaj yeem siv rau cov qauv sab nrauv?
Yog lawm, ASTM A533 Qib D yog tsim rau siv hauvcov qauv ntawm ntug dej hiav txwvxws liyog rigsthiaboffshore platforms. Txawm li cas los xij, cov hlau yuav tsum tau kho nrogcorrosion-cov tshuaj tiv thaivlos yogkev tiv thaiv cathodictiv taus qhov hnyavmarine ib puag ncig. Cov hlausiab zogthiabtiv thaiv brittle puasxyuas kom nws ua tau zoo nyob rau hauv lubsiab -kev nyuaj siabpom ntug hiav txwv.
4. Qhov kub siab tshaj plaws rau ASTM A533 Qib D yog dab tsi?
Qhov ntsuas kub siab tshaj plaws rau ASTM A533 Qib D yog nyob ib puag ncig400℃(752℃F). Thaum nws yog qhov zoo tshaj plaws raulow-kub siv, nws tsis yog tsim los siv rau hauvsiab -kub ib puag ncig. Ntawm qhov kub siab tshaj qhov no, cov khoom poob nwstawvthiabtsis kam mus tawg, ua rau nws tsis haum rau cov ntawv thov uas xav tau kev ua haujlwm ntawm qhov kub siab.
5. Dab tsi yog ASTM A533 Qib D siv rau hauv kev lag luam nuclear?
Hauvkev lag luam nuclear, ASTM A533 Qib D yog siv raucov hlab ntsha siab, reactor siab hlab ntsha, thiabnuclear reactor Cheebtsam. Nwssiab yield zogthiablow -kub toughnessua kom nws zoo meej raudaim ntawv thov tseem ceebnyob rau hauv nuclear reactors, qhov chaw muaj kev ruaj ntseg, durability, thiab tsis kam mus nkig tawg nyob rau hauvkev nyuaj siabthiabqhov kub thiab txiasyog qhov tseem ceeb.
6. Lub hardness ntawm ASTM A533 Qib D yog dab tsi?
Covtawvntawm ASTM A533 Qib D feem ntau ntog hauv qhov ntau ntawm200-250 HB(Brinell Hardness). Qib hardness no muab cov khoom siv zoo heevabrasion tsis kamthiab pab tswj nwszogthiabtawvtxawm nyob rau hauv ib puag ncig uas mechanical hnav tseem ceeb. Qhov no yog tshwj xeeb tshaj yog pab tau nyob rau hauvsiab - cov hlab ntsha siabthiabindustrial machinery.
7.Dab tsi yog lub zog ntawm ASTM A533 Qib D?
ASTM A533 Qib D muaj ayield zogntawm kwv yees690 MPa (100 ksi), uas yog ib qho ntawm cov laj thawj tseem ceeb uas nws siv hauvsiab -kev nyuaj siabib puag ncig. Qib ntawm lub zog no tso cai rau nws tiv taus siabsab hauv siabthiabmechanical loads, ua kom haum raucov hlab ntsha siab, nuclear reactors, thiab lwm yam kev thov kev lag luam.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom
