ASTM A387 Qib 5 Chav Kawm 2yog ib lub siab -zoo chromium-molybdenum alloy steel phaj tshwj xeeb tsim los siv rau hauv cov hlab ntsha uas muaj zog thiab cov boilers muaj kev ua haujlwm ntawm qhov kub siab.
Specifications ASTM A387 Qib 5 Alloy Steel Phaj
| Lub npe | Nominal Chromium Cov ntsiab lus (%) |
Nominal Molybdenum Cov ntsiab lus (%) |
| A387 Qib 5 | 5.00% | 0.50% |
Tensile Requirements rau ASTM A387 Qib 5 Alloy Steel Phaj Class 2 Phaj
| Lub npe: | Yuav tsum tau: | Qib 5 |
|
A387 Qib 5 |
Tensile zog, ksi [MPA] | 75 txog 100 [515 rau 690] |
| Yield zog, min, ksi [MPa] / (0.2% offset) | 45 [310] | |
| Elongation hauv 8 nti. [200mm], min % | ... | |
| Elongation hauv 2 nti. [50mm], min, % | 18 | |
| Txo thaj tsam, min% | 45 ( ntsuas ntawm cov qauv puag ncig) 40 ( ntsuas ntawm cov qauv tiaj tus) |
Cov Khoom Siv Tshuaj Rau ASTM A387 Qib 5 Alloy Steel Phaj
| Element | Chemical Composition (%) | |
| A387 Qib 5 | ||
| Cov pa roj carbon: | Kev Ntsuas Kub: | 0.15 max |
| Product Analysis: | 0.15 max | |
| Manganese: | Kev Ntsuas Kub: | 0.30 - 0.60 |
| Product Analysis: | 0.25 - 0.66 | |
| Phosphorus: | Kev Ntsuas Kub: | 0.035 |
| Product Analysis: | 0.035 | |
| Sulfur (max): | Kev Ntsuas Kub: | 0.030 |
| Product Analysis: | 0.030 | |
| Silicon: | Kev Ntsuas Kub: | 0.50 max |
| Product Analysis: | 0.55 max | |
| Chromium: | Kev Ntsuas Kub: | 4.00 - 6.00 |
| Product Analysis: | 3.90 - 6.10 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.45 - 0.65 |
| Product Analysis: | 0.40 - 0.70 |
Cov ntawv thov tseem ceeb los ntawm Kev Lag Luam
Roj & Roj: Ua cov khoom tseem ceeb rau cov tuam tsev refinery, catalytic crackers, tso tsheb hlau luam, thiab cov khoom siv roj ua haujlwm, ua haujlwm siab -kub, siab - siab, thiab corrosive tej yam kev mob nyob rau hauv upstream thiab downstream ua hauj lwm.
Petrochemical: Fabricates siab - cov hlab ntsha siab, cov khoom sib cais, thiab cov khoom siv hluav taws xob los tswj cov tshuaj lom neeg thiab cov khoom siv hluav taws xob hnyav thaum lub sij hawm ua kom zoo dua thiab cov txheej txheem sib txuas.
Lub zog tiam: Tsim cov boilers, chav turbines, thiab cov cua sov rov qab cov tshuab hluav taws xob (HRSG) uas tuav tau ntev - lub sij hawm siab - qhov kub thiab txias raug rau kev tsim hluav taws xob.
Cov chiv: Tsim cov ammonia thiab urea synthesis towers, withstanding cov tshuaj tiv thaiv huab cua.
Kev Siv Tshuaj & Pulp & Ntawv: Tsim ntau yam khoom siv tshuaj, chaw cia khoom, thiab cov ntaub so ntswg -paper ntau lawm iav, ua tau raws li kev lag luam ruaj khov.
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.
Cov kev lag luam dab tsi tseem ceeb rau kev siv ASTM A387 Qib 5 Chav Kawm 2?
Kev lag luam uas xav tau cov cuab yeej siv los tiv thaiv kev kub ntxhov siab - kub, siab - siab, thiab corrosive tej yam kev mob tseem ceeb rau qib steel no, suav nrog kev tshawb nrhiav roj thiab roj, kev tsim hluav taws xob, kev tsim hluav taws xob thermal, thiab kev tsim cov chiv. Cov haujlwm no vam khom rau nws qhov kev ua tau zoo los xyuas kom ntev - lub sijhawm, kev nyab xeeb ntawm cov khoom siv tseem ceeb.
ASTM A387 Qib 5 Chav Kawm 2 yog dab tsi thiab nws txawv ntawm Chav Kawm 1 li cas?
ASTM A387 Qib 5 Chav Kawm 2 yog chromium-molybdenum alloy steel phaj rau siab- kub thiab siab- kev pabcuam siab, nrog kev ua haujlwm nruj dua + kev kho cua sov dua li Chav Kawm 1, ua rau muaj zog tensile ntau dua, lub zog muaj zog thiab cuam tshuam lub zog kom haum rau kev ua haujlwm hnyav dua.