Qhov ntsuas kub npaum li cas rau ASME SA553 HOM 1 yog dab tsi?
ASME SA553 Hom 1(9% Nickel) yog tsim los rau cov ntawv thov cryogenic, nrog rau qhov kev pab cuam qhov kub thiab txias feem ntaunqes rau−320∘F ( −195∘C ). Nws feem ntau yog siv los khaws cov roj liquefied xws li LNG, nitrogen, thiab oxygen, yuav tsum tau kuaj xyuas qhov ntsuas kub ntawm qhov ntsuas kub no.
ASME SA553 Hom 1 yog npib tsib xee- alloyed steel phaj uas txhais tau tias "lub xeev ntawm daim duab" rau cov roj liquefied. Qhov 9% npib tsib xee ntxiv tiv thaiv cov hlau los ntawm kev nkag mus rau tus qauv lub cev -centered cubic (BCC) kom ntsib -centered cubic (FCC) cov teeb meem kev hloov pauv uas ua rau brittleness. Cov khoom no yog tsim los ua kom zoo-kev xyaum nplej thiab yog kua-quenched los ntawm qhov kub thiab txias kom khov nws cov qauv siab{10}} lub zog, ces tempered kom rov ua kom tawv. Nws yog 9% npib tsib xee hlau feem ntau tau teev tseg hauv cov haujlwm LNG thoob ntiaj teb vim nws cov ntaub ntawv pov thawj hauv kev tiv thaiv pob txha.
Cov yam ntxwv tseem ceeb
Phase Stability:Nyob twj ywm metallurgically ruaj khov ntawm -196C.
Nthuav Toughness:Ua pov thawj zoo tshaj Charpy V-notch zog qhov tseem ceeb ntawm qhov kub thiab txias.
Nto Zoo:Ua rau PVQ (Pressure Vessel Quality) cov qauv rau qhov tsis xws luag.
Corrosion Resistance:Muab kev ua haujlwm nruab nrab rau atmospheric corrosion piv rau carbon steel.
Qib Qib
"SA":"S" sawv cev rau Tshooj II (Cov Khoom Siv) ntawm ASME Code. "A" qhia tias nws yog cov khoom siv Ferrous (hlau-raws li).
"553":Qhov no yog cov khoom siv tshwj xeeb rau "Pressure Vessel Plate, Alloy Steel, Quenched and Tempered, 8 thiab 9% Nickel."
"Type 1":Qhov no qhia txog 9% Nickel tshuaj muaj pes tsawg leeg (8.50--9.50%).
Kev sib piv (vs. SA353)
Kev kho cua sov:SA553 yogQuenched thiab Tempered; SA353 yogOb chav Normalized thiab Tempered.
Khoom Thickness:SA553 feem ntau nyiam rau cov phaj tuab dua 2 ".
Yield zog:SA553 Hom 1 muaj cov txiaj ntsig zoo dua me ntsis hauv feem ntau cov ntawv pov thawj zeb.
Txias tus nqi:SA553 yuav tsum tau ua kua quenching kom ncav cuag nws 100 ksi tensile yam tsawg kawg nkaus.
Cov ntawv thov siv
LPG thiab LNG Carriers:Thawj cov tank ntim hauv dej hiav txwv - mus.
Air Separation Units (ASU):Cov hlab ntsha sab hauv kom tshem tawm cov ntshiab Nitrogen thiab Oxygen.
Cryogenic Valve Lub cev:Heavy-walled cam khwb cia lossis forged- phaj sib npaug.
Scientific Superconductors:Txhawb cov qauv rau cov hlau nplaum txias los ntawm cov kua nitrogen.
Lub zog tensile ntawm ASME SA553 Hom 1 yog dab tsi?
Lub zog tensile ntawm ASME SA553 Hom 1 feem ntau yog nyob ntawm 70 ksi (485 MPa) txog 90 ksi (620 MPa). Lub zog tensile siab no tso cai rau cov khoom siv los tiv thaiv kev ntxhov siab tseem ceeb yam tsis muaj kev ua haujlwm, ua rau nws haum rau cov hlab ntsha siab thiab lwm yam kev siv tseem ceeb. Nws lub peev xwm los tiv thaiv deformation ua kom muaj kev ntseeg ruaj khov txawm tias nyob rau hauv cov xwm txheej hnyav, uas yog qhov tseem ceeb rau kev nyab xeeb hauv kev lag luam xws li nuclear thiab petrochemical.
Dab tsi yog manganese cov ntsiab lus hauv ASME SA553 Hom 1?
Cov ntsiab lus manganese hauv ASME SA553 Hom 1 feem ntau yog li ntawm 0.60% txog 1.30%. Manganese yog ib qho tseem ceeb ntawm cov hlau alloying uas ua rau cov hlau muaj zog thiab toughness. Nws txhim kho cov khoom muaj peev xwm tiv taus hnav, tawg, thiab deformation, ua rau nws zoo tagnrho rau kev siv siab - xws li cov hlab ntsha thiab cov reactors. Tsis tas li ntawd, manganese pab hauv deoxidizing cov hlau thaum lub sij hawm tsim khoom, ua rau kom zoo tag nrho cov khoom zoo thiab kev ua tau zoo.
Dab tsi yog cov ntsiab lus phosphorus hauv ASME SA553 Hom 1?
Cov ntsiab lus phosphorus hauv ASME SA553 Hom 1 feem ntau txwv rau 0.035%. Phosphorus tuaj yeem txhawb nqa brittleness, tshwj xeeb tshaj yog nyob rau hauv qis- qhov kub thiab txias, txo cov khoom toughness, uas tuaj yeem ua rau tsis ua hauj lwm hauv cov ntawv thov tseem ceeb. Los ntawm kev txwv phosphorus, ASME SA553 Hom 1 tswj qhov tsim nyog toughness thiab resilience uas yuav tsum tau siv nyob rau hauv siab -siab, qis- kub daim ntawv thov, xws li reactors thiab siab hlab ntsha.
| TSEEM CEEB NTAWM ASTM A553 HOM 1 | |
| Cov pa roj carbon (C) | 0.13% |
| Manganese (Mn) | 0.9% |
| Phosphorus (P) | 0.035% |
| Sulfur (S) | 0.040% |
| Silicon (Si) | 0.15-0.30% |
| Nickel (Ni) | 8.50-9.50% |
| Hlau (Fe) | Base Hlau |
ASME SA553 Hom I Mechanical Properties:
|
Qib |
Tensile zog |
Yield zog |
Elongation hauv 2 hauv, 50 mm, min, (%) |
|
SIB 553 |
100-120 (690-825) |
85 (585) |
20 |
1. Dab tsi yog qhov elongation ntawm ASME SA553 Hom 1?
Qhov elongation ntawm ASME SA553 Hom 1 yog tsawg kawg yog 20% hauv 8 ntiv tes (200 hli). Cov cuab yeej no qhia txog cov khoom muaj peev xwm ua rau cov yas deformation yam tsis muaj kev tawg, uas yog ib qho tseem ceeb hauv kev siv cov ntaub ntawv uas raug kev nyuaj siab. Lub elongation siab dua tso cai rau cov hlau nqus ntau lub zog ua ntej tsis ua haujlwm, txhim kho nws cov kev ua tau zoo hauv kev lag luam uas yuav tsum tau muaj kev cuam tshuam, xws li hauv cov hlab ntsha siab thiab cov reactors raug kev ntxhov siab los yog cov khoom siv thauj khoom.
2. Dab tsi yog qhov weldability ntawm ASME SA553 Hom 1?
ASME SA553 Hom 1 muaj qhov zoo weldability, txawm tias yuav tsum tau saib xyuas thaum vuam. Preheating cov khoom ua ntej welding thiab post-weld heat treatment (PWHT) feem ntau yuav tsum tau tiv thaiv kom txhob tawg thiab txo qhov seem seem. Cov khoom siv cov ntsiab lus tsis tshua muaj cov pa roj carbon monoxide txhim kho nws lub peev xwm los welded yam tsis muaj kev pheej hmoo ntawm kev tawg, kom ntseeg tau tias nws tseem tsim nyog rau cov ntawv thov tseem ceeb uas vuam yuav tsum tau tsim los yog kho.
3. Dab tsi yog cov ntsiab lus phosphorus hauv ASME SA553 Hom 1?
Cov ntsiab lus phosphorus hauv ASME SA553 Hom 1 feem ntau txwv rau 0.035%. Phosphorus tuaj yeem txhawb nqa brittleness, tshwj xeeb tshaj yog nyob rau hauv qis - qhov kub thiab txias ib puag ncig, txo cov khoom toughness thiab ua rau nws yooj yim rau tawg. Los ntawm kev txwv cov phosphorus, ASME SA553 Hom 1 khaws cov khoom tsim nyog ductility thiab toughness rau cov ntawv thov xws li cov hlab ntsha siab, kom ntseeg tau tias nws ua tau zoo txawm tias nyob rau hauv huab cua thiab thermal stresses.
4. Cov kev lag luam twg siv ASME SA553 Hom 1?
ASME SA553 Hom 1 feem ntau siv hauv kev lag luam xws li kev tsim hluav taws xob, petrochemical, nuclear zog, thiab cryogenics. Nws yog dav siv rau kev tsim cov hlab ntsha siab, reactors, kub exchangers, thiab lwm yam tseem ceeb Cheebtsam raug rau siab -siab thiab qis- kub ib puag ncig. Nws lub zog siab, toughness, thiab tsis kam ua rau tawg tawg ua rau nws zoo tagnrho rau cov ntawv thov uas cov khoom tsis ua haujlwm tuaj yeem ua rau muaj kev puas tsuaj loj.
5. Dab tsi yog cov ntsiab lus sulfur hauv ASME SA553 Hom 1?
Cov ntsiab lus sulfur hauv ASME SA553 Hom 1 yog txwv rau 0.035%. Sulfur tuaj yeem txo cov khoom siv tawv, tshwj xeeb tshaj yog nyob rau qhov kub thiab txias, thiab ua rau tawg tawg. Los ntawm kev tswj hwm cov qib sulfur, ASME SA553 Hom 1 tswj nws lub zog thiab tiv thaiv kev tawg tawg, uas yog qhov tseem ceeb rau kev siv tseem ceeb hauv kev lag luam xws li petrochemical thiab lub zog tsim hluav taws xob, qhov chaw uas cov khoom ntsib kev nyuaj siab thiab tsis kub.
6. Dab tsi yog txheej txheem kev kho cua sov rau ASME SA553 Hom 1?
ASME SA553 Hom 1 tau dhau los ua cov txheej txheem quenching thiab tempering cua sov. Cov hlau yog rhuab mus rau qhov kub siab, tom qab ntawd txias txias (quenched), tom qab ntawd los ntawm tempering ntawm qhov kub thiab txias kom txo cov kev ntxhov siab sab hauv. Cov txheej txheem no txhim kho cov hlau lub zog thiab lub zog, ua kom nws ruaj khov nyob rau hauv siab - siab thiab qis - qhov kub thiab txias, ua rau nws tsim nyog rau kev siv tseem ceeb hauv cov hlab ntsha thiab cov reactors.
7. Cov ntsiab lus carbon hauv ASME SA553 Hom 1 yog dab tsi?
Cov ntsiab lus carbon hauv ASME SA553 Hom 1 feem ntau yog li ntawm 0.12% txog 0.18%. Cov ntsiab lus qis carbon no pab txhim kho cov khoom siv weldability, txo qhov kev pheej hmoo ntawm kev tawg thaum lub sij hawm vuam txheej txheem. Txawm hais tias cov ntsiab lus tsis tshua muaj carbon tsawg, cov hlau tseem khaws lub zog txaus thiab tawv, ua rau nws tsim nyog rau kev siv hauv siab - siab thiab qis - qhov kub thiab txias ib puag ncig xws li cov hlab ntsha thiab cov khoom siv hluav taws xob.
Thov kev tshaj lij rau ASME SA553 Hom 1 los ntawm GNEE Steel.
