LTCS SA333 Gr 3 Carbon Steel Pipes piav qhia
A333Gr3 cryogenic yeeb nkab yog seamless steel yeeb nkab ua raws li ASTM A333 thiab GB / T18984-2003 cov qauv rau kev siv cryogenic. Nws yog tsim tshwj xeeb rau cryogenic siab hlab ntsha piping thiab tshav kub exchanger piping systems ua hauj lwm ntawm kub ntawm -45℃rau -195 degree. Cov ntaub ntawv muaj xws li cov hlau tsis tshua muaj hlau xws li 16MnDG thiab 10MnDG, nrog rau cov hlau nickel alloy xws li 06Ni3MoDG. Sab nraud diameters li ntawm 8-1240mm, thiab phab ntsa thicknesses ntawm 1-200mm, ua rau nws tau tshaj ASTM cov qauv ntawm Gr1 rau Gr11.
Cov khoom no yog tsim los ntawm kev siv cov txhuas deoxidation zoo- cov txheej txheem nplej thiab xa tuaj rau hauv cov txheej txheem normalized lossis normalized thiab tempered. Cov tshuaj muaj pes tsawg leeg yuav tsum ua tau raws li qhov sib piv ntawm carbon, manganese, thiab phosphorus kom ntseeg tau tias muaj zog. Nws cov khoom siv kho tshuab yog tsim los kom sib npaug qis- qhov kub thiab txias tsis kam thiab siab ua haujlwm, thiab nws feem ntau yog siv rau hauv kev thauj mus los ntawm cov roj ntsha liquefied, cov khoom siv tub yees, thiab kev lag luam petrochemical, txhawb nqa roj cia thiab kev sib pauv cua sov xav tau nyob rau hauv ib puag ncig cryogenic.
SA-333 GR3 Seamless Steel Tubes Rau Cov Kev Pabcuam Kub Kub Tsawg
LTCS ASTM A333 Gr 3 Pipe Chemical Formula
| Kev sib xyaw,% | |||
| Element | Qib 1 | Qib 3 | Qib 6 |
| Carbon, max | 0.30 | 0.19 | 0.30 |
| Manganese | 0.40 – 1.06 | 0.31 – 0.64 | 0.29 – 1.06 |
| Phosphorus, max | 0.025 | 0.025 | 0.025 |
| Sulfur, max | 0.025 | 0.025 | 0.025 |
| Silicon | 0.18 -0.37 | 0.10 min | |
| Nickel | 3.18 – 3.82 | ||
ASTM A333 Qib 3 Seamless Yeeb Nkab Mechanical Strength
| Qib | Yield zog (Mpa) | Tensile zog (Mpa) | Elongation (%) |
| Qib.3 | Ntau dua lossis sib npaug li 450 | Ntau dua lossis sib npaug li 240 | 30% |
Daim ntawv thov:
1. Liquefied Natural Gas (LNG) Infrastructure
- Cov kav dej: Siv rau ntev - kev thauj mus los LNG deb ntawm -162℃, xws li cov kav dej los ntawm cov chaw liquefaction mus rau lub tank cia. Lawv cov tshuaj tiv thaiv cryogenic tiv thaiv kom tsis txhob muaj dej vim thermal contraction.
- Tank Support Structures: Cov kav hlau yuav tsum tiv taus cov kua nitrogen ib puag ncig mus rau -196℃(saib ASME B31.3). Lub toughness ntawm A333Gr3 ua tau raws li cov kev cai dynamic load.
2. Petrochemical Cryogenic Cov Khoom Siv Ua Haujlwm
- Ethylene Cracking Units: Nyob rau hauv cov theem sib cais cryogenic xws li -45℃mus rau -101 degree, steel kav yog siv los thauj cov kua ethylene, propylene, thiab lwm yam xov xwm.
- Cov Khoom Siv Hluav Taws Xob: Xws li cov kav dej ua kua cryogenic hauv cov nroj tsuag oxygen, ua haujlwm ntawm qhov kub thiab txias li -183℃(kua oxygen), yuav tsum tau ua raws li cov kev ntsuas cryogenic ntxiv tau teev tseg hauv ASTM A333 appendix.
3. Polar thiab Marine Cryogenic Engineering
- Arctic Roj thiab Gas Fields: Cov kav dej hauv qab dej hiav txwv yuav tsum tiv taus dej khov hauv ib puag ncig txias li -40℃. A333Gr3 yield zog Ntau dua lossis sib npaug rau 240MPa (ASTM A333 Table 1) yuav tsum tau ua kom muaj kev nyab xeeb ntawm cov qauv.
- Cryogenic Pressure Vessels: Xws li cov kav dej txuas rau LNG nkoj cia tso tsheb hlau luam, cov qauv tsim siab feem ntau tshaj 10MPa, yuav tsum tau ua raws li ASME VIII Div.1 cov qauv.
Kev kuaj thiab tshuaj xyuas
Ntim thiab shipping
