ASTM A333 Qib 6 Seamless thiab Welded Yeeb Nkab
Dec 04, 2025
Dab tsi yog A333 Gr.6 Steel
A333 Gr.6 steel yog npib tsib xee- dawb hlau, tshwj xeeb yog aluminium -deoxidized zoo-grained steel nrog zoo heev qis- kub toughness, kuj hu ua txhuas-tua hlau. Ua raws li ASTM / ASME SA333 cryogenic steel qauv, nws yog tsim los rau kev pab cuam ntawm qhov tsawg kawg nkaus qhov kub ntawm qhov kub ntawm txog 46 deg C. Nws ua hauj lwm kub ntau yam thiab puas toughness qhov tseem ceeb yog piv rau Tuam Tshoj lub domestic 16Mn steel, uas muaj ib tug tsawg kawg nkaus kev pab cuam kub ntawm txog minus 40 deg C. Cov yeeb nkab yuav tsum tau furnace los ntawm seamless formwork. welding los yog hluav taws xob kuj welding raws li specification.
Chemical Composition (Max)
| Element | Qib 6 |
|---|---|
| Carbon, max | 0.30 |
| Manganese | 0.29-1.06 |
| Phosphorus, max | 0.025 |
| Sulfur, max | 0.025 |
| Silicon | 0.10 min |
| Nickel | Tsis xav tau |
Mechanical Properties
Yam tsawg kawg nkaus yield zog 35,000 psi (240 MPa); Tsawg tensile zog 60,000 psi (415 MPa). Charpy V-qhov ntsuas qhov cuam tshuam yuav tsum muaj nyob ntawm qhov ntsuas qhov ntsuas qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas qhov ntsuas ntawm qhov ntsuas ntawm 45 ° C rau A333 lub rooj.
Phab ntsa Thickness Tolerances
| Sab nraud txoj kab uas hla, nti | Ua siab ntev |
|---|---|
| 1/8 - 2-1/2 | +20.0% / -12.5% |
| 3 - 18, WT/OD txog li 5% | +22.5% / -12.5% |
| 3 - 18, WT/OD saum 5% | +15.0% / -12.5% |
| 20 thiab loj dua, WT / OD txog li 5% | +22.5% / -12.5% |
| 20 thiab loj dua, WT / OD saum toj 5% | +15.0% / -12.5% |
Daim ntawv thov
SA333 Gr.6 cov kav dej cryogenic feem ntau yog siv rau hauv cov hlab ntsha siab thiab cov kav dej uas xav tau lub zog siab thiab tawv ntawm qhov kub thiab txias. Cov ntawv thov tshwj xeeb suav nrog: cov khoom siv hauv kev lag luam petrochemical xws li reactors, hluav taws xob sib hloov, thiab cov khoom sib cais rau LNG cia thiab cov tshuaj tiv thaiv cryogenic; natural gas processing thiab cryogenic khoom; cryogenic cia thiab liquefied gas thauj chaw; thiab txhuam, ntxuav, thiab desulfurization cov cuab yeej hauv ethylene, propylene, urea, thiab hluavtaws ammonia ntau lawm, nrog rau cov khoom siv cryogenic hauv kev tsim tshuaj.
Cov lus nug nquag
Q: A333 Gr.6 yog dab tsi? A>Ib qho txhuas-tua raug nplua- nplej npib tsib xee- cov yeeb nkab steel dawb rau qis- kev pabcuam kub txog li 46 deg C.
Q: Gr.6 puas tuaj yeem muab tau raws li cov yeeb nkab welded? A>Yog lawm, A333 specification npog ob leeg seamless thiab welded yeeb nkab.
Q: Lub zog tawm los yog dab tsi? A>35,000 psi (240 MPa) yam tsawg kawg nkaus.
Q: Lub zog tensile yog dab tsi? A>60,000 psi (415 MPa) yam tsawg kawg nkaus.
Q: Dab tsi yog phab ntsa kam rau ua? A>Los ntawm +20/-12.5 feem pua rau qhov loj me rau +22.5/-12.5 lossis +15/-12.5 feem pua rau qhov loj dua nyob ntawm qhov piv ntawm WT / OD.
Q: Gr.6 siv qhov twg? A>LNG, petrochemical, natural gas processing, thiab qis -kub siab lub nkoj thiab cua kub exchanger piping.
Xav tau SA333 Gr.6 yeeb nkab, seamless lossis welded, rau koj qhov qis -kub? Tiv tauj peb nrog koj qhov loj me thiab qhov ntau rau kev hais lus.
