ASTM A387 Qib 11 Chav Kawm 1yog chromium-molybdenum (Cr-Mo) alloy steel phaj tsim rau welded boilers thiab siab hlab ntsha nyob rau hauv siab- qhov kub thiab txias kev pab cuam, muab oxidation zoo heev thiab creep tsis kam vim nws 1.25% Cr thiab 0.5% Mo cov ntsiab lus, nrog 'Class 1' qhia ib tug qis tensile zog rau cov nroj tsuag, qib fin, thiab fins. petrochemicals.
Specifications rau ASTM A387 Qib 11 Alloy Steel Phaj
| Lub npe | Nominal Chromium Cov ntsiab lus (%) |
Nominal Molybdenum Cov ntsiab lus (%) |
| A387 Qib 11 | 1.25% | 0.50% |
Chemical Composition thiab Mechanical Property
| Qib | Chemical Composition (%) | ||||
| C | Mn | Si | P max | S max | |
| A387 Qib 11 Chav Kawm 1 (A387GR11CL1) | 0.04-0.17 | 0.35-0.73 | 0.44-0.86 | 0.035 | 0.035 |
| Qib | Mechanical Property | ||||
| Tensile zog (MPa) | Yield zog (MPa) min | % Elongation hauv 2 nti (50mm) min | Impacting Test Temperature (degree) | ||
| A387 Qib 11 Chav Kawm 1 (A387GR11CL1) | 415-585 | 240 | 22 | -20,40,-60 | |
Cov ntawv thov tseem ceeb
Roj & Roj Kev Lag Luam
Cov khoom siv no yog siv dav hauv cov cuab yeej siv hluav taws xob thiab cov kav dej, siv rau cov khoom siv hluav taws xob nyob rau hauv kev kub siab / corrosion, hydrotreating / hydrocracking units rau desulfurization thiab roj kho dua tshiab, siab - kub cia tank rau cov khoom siv roj, thiab cov txheej txheem piping thauj high -kub dej, kom ntseeg tau tias muaj kev nyab xeeb.
Kev lag luam Petrochemical
Nws yog ib qho kev xaiv rau siab - cov khoom siv petrochemical kub, siv nyob rau hauv cov tshuaj reactors rau polymerization thiab alkylation, cia nkoj tuav ethylene thiab propylene, thiab cov txheej txheem cov cuab yeej xws li tshav kub exchangers, withstanding kub, corrosion thiab siab fluctuations.
Kev lag luam tsim hluav taws xob
Rau cov thermal thiab ua ke- voj voog cov nroj tsuag, nws yog irreplaceable rau qhov tseem ceeb siab qhov chaw: boiler drums cais chav thiab dej nyob rau hauv 500℃/ 10 MPa, headers rau cov dej faib, thiab cov kav dej / reheater tubes tiv thaiv thermal qaug zog thiab nkag, kom ntseeg tau lub zog tsim efficiency.
General Pressure Vessels
Nws yog ib qho tseem ceeb rau cov hlab ntsha loj / cov khoom hauv siab - cov txheej txheem kub (tshuaj, khoom noj khoom haus, metallurgy), suav nrog flanges thiab reinforcing rings, ua tau raws li ASME VIII / EN 13445 tus qauv nrog ruaj khov thiab corrosion kuj.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
A387 Qib 11 CL 1 cov khoom sib npaug yog dab tsi?
ASTM A387 Qib 11 Chav Kawm 1 muaj cov khoom sib npaug sib npaug hauv cov qauv sib txawv hauv lub tebchaws thiab cov qauv kev lag luam thoob ntiaj teb, uas feem ntau siv sib hloov hauv siab - qhov kub siab ntawm lub nkoj.
A387 qib 11 yog dab tsi?
ASTM A387 specification yog tus qauv Specification rau Pressure Vessel Phaj, Alloy Steel, Chromium-Molybdenum npaj rau siv nyob rau hauv welded boilers thiab siab hlab ntsha tsim rau siab kub kev pab cuam. SSAB tuaj yeem muab A387 Qib 11 rau qhov kev xeem nruj rau Chav Kawm 1 thiab / lossis Chav Kawm 2.