1. Cov yam ntxwv tseem ceeb thiab daim ntawv thov tseem ceeb
Daim Ntawv Thov Tseem Ceeb: Tsawg-Kev Pabcuam Kub. Qhov no yog lub ntsiab lus txhais ntawm A333 Gr. 6. Nws yog tsim los khaws nws cov ductility thiab tiv thaiv nkig tawg ntawm sub- xoom kub.
Cov yam ntxwv tseem ceeb: Zoo heev Impact Toughness. Cov yeeb nkab yuav tsum dhau qhov kev ntsuam xyuas Charpy Impact ntawm qhov ntsuas kub qis kom ntseeg tau tias nws tuaj yeem tiv thaiv kev ua haujlwm tsis zoo yam tsis ua rau lub nkig.
Khoom siv:Carbon Steel (ib cov hlau tua, feem ntau zoo -grain xyaum).
2. Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg (los ntawm kev tsom xam thaum tshav kub kub) yog nruj me ntsis tswj kom ntseeg tau tias weldability thiab qis - kub ua haujlwm.
| Lub ntsiab | Kev sib xyaw (%) |
|---|---|
| Cov pa roj carbon (C) | 0.30 max |
| Manganese (Mn) | 0.29 - 1.06 |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.025 max |
| Silicon (Si) | 0.10 min (Note: Lubyam tsawg kawg nkaussilicon yuav tsum tau) |
Cov lus qhia ntawm Silicon:Qhov tsawg kawg nkaus 0.10% Si yog teev kom ntseeg tau tias cov hlau "tua," txhais tau hais tias nws tau deoxidized los tiv thaiv cov roj porosity thaum lub sij hawm solidification, uas ua rau muaj ntau homogeneous thiab suab khoom.
3. Mechanical Properties
Cov no yog cov khoom tseem ceeb uas txhais cov yeeb nkab lub zog thiab toughness.
| Khoom | Tus nqi |
|---|---|
| Tensile zog | 60 ksi (415 MPa) min |
| Yield zog | 35 ksi (240 MPa) min |
| Elongation | Nws txawv nrog phab ntsa thickness, raws li tus qauv qauv. |
| Impact Test Temperature | -45 ° F (-50 ° F) |
| Yam tsawg kawg nkaus Avg. Impact Zog | 13 ft -lbf (18 J)rau cov qauv qauv. |
Cov ntsiab lus tseem ceeb ntawm Kev Ntsuas Kev Ntsuas:Txhua lub yeeb nkab yuav tsum dhau mus thiab dhau Charpy V-Kev ntsuas qhov cuam tshuam. Qhov ntsuas yog ua nrog cov qauv txias rau-50 ° F (-45 ° F). Qhov nruab nrab lub zog nqus los ntawm peb tus qauv yuav tsum ua kom tau raws li qhov xav tau.
4. Tsawg-Kev Pabcuam Kub Kub
Thaum qhov kev ntsuam xyuas cuam tshuam raug yuam ntawm-50 ° F (-45 ° F), A333 Gr. 6 yeeb nkab feem ntau yog siv rau hauv cov ntawv thov uas tsim qhov kub thiab txias li qis-50 ° F txog -75 ° F (-45 ° txog -60 ° F). Qhov kev nyab xeeb ntawm kev ua haujlwm kub yog nyob ntawm yam xws li kev tsim kev ntxhov siab, phab ntsa tuab, thiab cov kev pabcuam tshwj xeeb, tab sis nws yog qhov kev xaiv tus qauv rau cov ntsuas kub no.
5. Kev siv ntau
A333 Gr. 6 cov kav dej yog siv nyob qhov twg cov txheej txheem cov kua dej los yog ib puag ncig ncav cuag qhov kub thiab txias. Tej kev lag luam thiab kev siv xws li:
Liquefied Natural Gas (LNG) Facilities:Rau cov txheej txheem kab thiab hloov cov kav dej.
Tub yees thiab Cryogenic Nroj Tsuag:Tuav ammonia, propane, lossis lwm yam tub yees.
Chemical thiab Petrochemical Plants:Rau cov khoom ua haujlwm uas ua haujlwm ntawm qhov kub thiab txias.
Offshore Roj & Roj Platforms:Rau cov txheej txheem kev pabcuam txias thiab cov khoom siv hluav taws xob.
Skid Mounted Units:Zoo li kev ua pa roj thiab compression skids.
6. Hom kev tsim khoom
ASTM A333 Gr. 6 yeeb nkab muaj nyob rau hauv ob daim ntawv tseem ceeb:
Seamless (SMLS):Tsim los ntawm kev tho ib lub pob zeb, ua rau cov yeeb nkab tsis muaj vuam seam. Txaus siab rau kev siv siab -siab.
Welded:Tsim los ntawm phaj lossis coil thiab ces welded (feem ntau yog los ntawm Electric Resistance Vuam - ERW los yog Submerged Arc Vuam - SAW). Lub vuam seam yuav tsum tau txais kev kho cua sov tib yam thiab dhau qhov kev ntsuam xyuas tib yam li cov yeeb nkab lub cev.
7. Kev kho cua sov
Txhawm rau ua tiav qhov xav tau qis -kub toughness, A333 Gr. 6 kav yogLi qublos yogNormalized thiab Tempered. Qhov kev kho cua sov no ua kom zoo dua cov qauv nplej, uas yog qhov tseem ceeb rau kev cuam tshuam zoo.
8. Kev sib txuas lus tshwj xeeb
Tube Fittings:ASTM A420 WPL6 (lub taub qab- vuam fittings rau qis- kev pabcuam kub).
Flanges & Valves:ASTM A350 LF2 (forging rau qis-kev pabcuam kub).
Qhov Loj:Cov yeeb nkab qhov ntev lawv tus kheej yog tswj los ntawmASTM A530 Cov Lus Qhia Tshwj Xeeb, uas hais txog tus qauv yeeb nkab qhov ntau thiab tsawg los ntawm specifications nyiamASTM A53(piv txwv li, NPS, Teem sijhawm 40, 80, thiab lwm yam).
Cov ntsiab lus
ASTM A333 Qib 6yog qhov mus - rau specification raucarbon steel yeeb nkab uas yuav tsum muaj kev ntseeg siab nyob rau hauv qis -kub ib puag ncig. Nws guaranteed cuam tshuam toughness ntawm-50 degreeua rau nws muaj kev nyab xeeb thiab txhim khu kev qha rau cryogenic thiab qis - cov txheej txheem kub hauv cov roj, roj, thiab tshuaj lom neeg kev lag luam. Thaum koj pom qhov kev qhia tshwj xeeb no, lub koom haum tam sim ntawd yuav tsum yog"low{0}}kub carbon steel yeeb nkab."
Tsis lees paub:Cov ntaub ntawv no tsuas yog siv rau kev siv dav dav xwb. Rau kev tsim thiab kev yuav khoom, nco ntsoov sab laj qhov tseeb version ntawm ASTM A333 / A333M tus qauv.
