ASTM A533 Qib D puas tuaj yeem welded?
Yog lawm, ASTM A533 Qib D tuaj yeem txuas tau; nws yog tsim tshwj xeeb raws li manganese-molybdenum-nickel alloy steel phaj rau cov hlab ntsha siab. Thaum weldable, nws yuav tsum muaj cov txheej txheem vuam kom zoo, suav nrog preheat, tswj cov cua sov, thiab tom qab-weld heat treatment (PWHT) los tswj nws cov khoom quenched thiab tempered thiab xyuas kom muaj kev ncaj ncees.
ASTM A533 Qib D yog qhov siab - kawg, tshwj xeeb steel phaj siv thaum cov qauv carbon steels ncav cuag lawv lub cev txwv. Nws tso cai rau kev tsim cov nkoj loj thiab tuab heev uas tseem muaj kev nyab xeeb thiab weldable, txawm tias ntawm cov khoom siv ntau dua.
Cov yam ntxwv tseem ceeb:
Durability:Tsim los rau lub neej ua haujlwm ntev (30-50 xyoo) nyob rau hauv ib puag ncig hnyav.
Precision Manufacturing:Yuav tsum tau tshwj xeeb steel mills muaj peev xwm ntawm sophisticated quenching thiab tempering cycles.
Versatility:Haum rau ob qho tib si ambient thiab nruab nrab siab -cov kev pabcuam kub.
Qib Qib:
ASTM A533 Cov Lus Qhia:Siab- zog Q&T Mn-Mo-Ni specification.
Qib D:Chemical designation rau cov alloy mix.
Kev sib piv (ASTM A533 Qib D vs A533 Qib B)
Lub zogASTM A533 Qib D muaj siab duayield zogpiv rau A533 Qib B.
Toughness: A533 Qib D muajzoo dua qis -kub toughness, ua kom haum rau cov kev pabcuam cryogenic.
Daim ntawv thov: Ob leeg siv hauvsiab - cov hlab ntsha siab, tab sis Qib D yog nyiam rauntau heevkub tej yam kev mob.
Daim Ntawv Thov Kev Sib Tham
Nuclear reactors
Cryogenic ciaraukua roj gas
Cov hlab ntsha siabrau covpetrochemicalkev lag luam
Offshore platformshauvib puag ncig heev
Boilersrautsim hluav taws xob
Industrial tshav kub exchangers
Heavy-cov kav dej ua haujlwm
ASTM A533 Qib D yog dab tsi?
Qhov siab tshaj plaws ua haujlwm kub rau ASTM A533 Qib D yog kwv yees li400℃(752℃F). Tshaj qhov ntsuas kub no, cov khoom sivtawvthiabzogtej zaum yuav degrade, ua rau nws tsis haum rau siab -kub siv. Rau siab - qhov kub thiab txias, lwm yam ntaub ntawv xws liCr-Mo steelsyog tsim nyog.
Lub zog tensile ntawm ASTM A533 Qib D yog dab tsi?
ASTM A533 Qib D muaj atensile zogxws li los ntawm760 MPa rau 900 MPa. Qhov no muab cov khoom muaj peev xwm ua tausiab - ib puag ncig siabthiabhnyav mechanical loadstsis poob, ua kom haum raucov hlab ntsha siab, cryogenic cia, thiab lwm yam kev lag luam tseem ceeb.
Lub hardness ntawm ASTM A533 Qib D yog dab tsi?
Covtawvntawm ASTM A533 Qib D feem ntau poob ntawm200 thiab 250 HB. Qib no hardness muab cov khoomtiv taus abrasionthiab pab tswj nwstawvnyob rau hauv siab - kev nyuaj siab. Qhov no yog qhov tseem ceeb rau kev siv xws licov hlab ntsha siabthiabnuclear reactorsqhov twg cov khoom raug rau cov khoom siv tseem ceeb.
ASTM A533 Qib D steel tshuaj muaj pes tsawg leeg(%) :
|
Kev sib xyaw |
Qib D |
|
|
C Tsawg dua lossis sib npaug rau ① |
|
0.25 |
|
Mn |
Kev ntsuas kub |
1.15~1.50 |
|
Cov khoom tsom xam |
1.07~1.62 |
|
|
P Tsawg dua lossis sib npaug rau ① |
0.035 |
|
|
S Tsawg dua lossis sib npaug rau ① |
0.035 |
|
|
Si |
Kev ntsuas kub |
0.15~0.40 |
|
Cov khoom tsom xam |
0.13~0.45 |
|
|
Ni |
Kev ntsuas kub |
0.20~0.40 |
|
Cov khoom tsom xam |
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 txheej txheem vuam dab tsi pom zoo rau ASTM A533 Qib D?
Rau vuam ASTM A533 Qib D, nws raug nquahu kom sivqis-hydrogen electrodesthiab ua rawspreheatingcov txheej txheem, tshwj xeeb tshaj yog rau cov ntu tuab. Tom qab vuam,post-weld kev kho cua sov (PWHT)yog qhia kom txo tauresidual stressesthiab txhim kho covtawvntawm thaj chaw weld, kom ntseeg tau tias cov khoom siv tswj nws cov khoom siv kho tshuab hauv qis - qhov kub thiab txias.
2. Dab tsi ncej-weld kho yog xav tau rau ASTM A533 Qib D?
Ncej -weld kev kho cua sov (PWHT)yog pom zoo raucov ntu tuabntawm ASTM A533 Qib D kom txo tau cov kev ntxhov siab uas seem thiab txo qhov kev pheej hmoo ntawmhydrogen tawg. PWHT pab txhim kho lubtawvthiabductilityntawm tshav kub- thaj tsam cuam tshuam, uas yog qhov tseem ceeb tshwj xeeb hauvcov hlab ntsha siabthiabsiab - cov ntawv thov kev nyuaj siabqhov twg cov khoom yuav tsum nyob twj ywm txhim khu kev qha nyob rau hauv huab mob.
3. Dab tsi yog qhov tuab ntawm ASTM A533 Qib D daim hlau?
ASTM A533 Qib D feem ntau muaj nyob rau hauvthicknesses li ntawm 20 hli mus rau 100+ hli. Cov phaj tuab no yog tsim los siv rau hauvsiab -kev siv siabxws licov hlab ntsha siab, nuclear reactors, thiabcryogenic tanks, qhov twgzogthiabtawvyog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb thiab kev ntseeg tau raws limob heev.
4. ASTM A533 Qib D tau kho li cas?
ASTM A533 Qib D yog cua sov- kho los ntawmquenchingthiabtempering. quenching yuav tsum ceev cov hlau los ntawm qhov kub thiab txias kom nws lub zog. Cov txheej txheem tempering yog siv los txo cov kev ntxhov siab sab hauv thiab txhim khotawv. Qhov kev sib xyaw ua ke ntawm kev kho cua sov no ua kom ntseeg tau tias cov hlau muaj cov khoom zoo rau kev siv hauvsiab-siab thiab qis-kub siv.
5. Cov tshuaj muaj pes tsawg leeg ntawm ASTM A533 Qib D yog dab tsi?
Cov tshuaj muaj pes tsawg leeg ntawm ASTM A533 Qib D suav nrogcarbon, manganese, silicon, npib tsib xee, chromium, thiabmolybdenum. Qhov kev sib xyaw ntawm cov khoom no muab cov hlau nrogsiab zog, tawv, thiabtiv thaiv brittle puas, uas yog qhov tseem ceeb rau kev siv hauvcov hlab ntsha siabthiabDaim ntawv thov cryogenicqhov twg cov ntaub ntawv yuav tsum ua kom ntseeg tau raws liheev mechanical stresses.
6. Dab tsi yog qhov tseem ceeb ntawm ASTM A533 Qib D?
ASTM A533 Qib D feem ntau siv hauvsiab - cov hlab ntsha siab, cryogenic tanks, nuclear reactors, thiabcov qauv ntawm ntug dej hiav txwv. Nwssiab yield zogthiablow -kub toughnessua kom nws zoo tagnrho rau kev lag luam uas xav tau cov ntaub ntawv uas tuaj yeem tiv tausmob heev, zoo linuclear zog, roj thiab roj, thiabhnyav manufacturing.
7. Cov kev lag luam twg siv ASTM A533 Qib D?
Kev lag luam xws linuclear zog, cryogenics, roj thiab roj, thiabcov qauv ntawm ntug dej hiav txwvfeem ntau siv ASTM A533 Qib D. Nws raug xaiv rausiab-kev nyuaj siab, qis-kev siv kub, zoo linuclear reactors, LNG cia tanks, thiabcov hlab ntsha siab, qhov twgzogthiabtawvnyob rau hauv huab cua tshuab loads tseem ceeb heev.
Tau txais nqe lus hais rauASTM A533 Qib D, Hu rau GNEE Steel
