ASTM A516 Qib 65yog cov pa roj carbon steel phaj qib tshwj xeeb tsim rau kev siv lub nkoj siab, tsim los muab kev txhim khu kev qha hauv nruab nrab mus rau qis dua - qhov kub thiab txias kev pabcuam. Nws yog ib feem ntawm ASTM A516 specification, uas npog ob peb qib ntawm carbon steel daim hlau npaj rau siv nyob rau hauv welded siab hlab ntsha uas txhim kho toughness thiab kuj rau brittle puas yog qhov tseem ceeb. Qib 65 yog tus cwj pwm los ntawm qhov tsawg kawg nkaus tawm lub zog ntawm 65 ksi (450 MPa) thiab tswj cov tshuaj muaj pes tsawg leeg uas txhim kho weldability, ductility, thiab tag nrho cov qauv kev ncaj ncees. Cov qib no feem ntau yog tsim los nrog kev kho cua sov zoo ib yam kom ntseeg tau tias cov khoom siv kho tau zoo ib yam thoob plaws cov thicknesses sib txawv, ua rau nws haum rau ntau yam ntawm siab - muaj cov khoom. Nws qhov sib xyaw ua ke ntawm lub zog, tawv, thiab tus nqi{10}}kev ua tau zoo ua rau ASTM A516 Qib 65 yog cov khoom siv hauv kev lag luam xws li roj thiab roj, kev ua tshuaj lom neeg, thiab lub zog tsim hluav taws xob, uas cov cuab yeej yuav tsum ua haujlwm zoo nyob rau hauv qhov sib txawv ntawm qhov siab thiab qhov kub thiab txias.
Mechanical Properties ntawm ASTM A516 Qib 65
| Kev piav qhia | Qib 65 |
|---|---|
| Tensile zog (ksi) | 65-85 |
| Tensile zog (MPa) | 450-585 |
| Yield zog (ksi) | 35 |
| Yield zog (MPa) | 240 |
| Elongation hauv 200mm (min) (%) | 19 |
| Elongation hauv 50mm (min) (%) | 21 |
| Thickness (max) (hli) | 205 |
Chemical Composition ntawm ASTM A516 Qib 65
| Cov pa roj carbon (C) | % |
| 12.5mm los yog tsawg dua 12.5 - 50 hli 50 - 100 hli 100 - 200 hli >200 hli |
0.24 0.26 0.28 0.29 0.29 |
Manganese (Mn) |
% |
| 12.5mm los yog tsawg dua • Kev Ntsuas Kub: • Kev Ntsuam Xyuas Khoom Muag: Tshaj 12.5mm • Kev Ntsuas Kub: • Kev Ntsuam Xyuas Khoom Muag: |
0.85-1.20 0.79-1.30 0.85-1.20 0.79-1.30 |
Phosphorus (P) |
% |
| (max) | 0.035 |
Sulfur (S) |
% |
| (max) | 0.035 |
Silicon (Si) |
% |
| • Kev Ntsuas Kub: • Kev Ntsuam Xyuas Khoom Muag: |
0.15-0.40 0.13-0.45 |
Cov ntawv thov tseem ceeb
Roj refineries thiab roj ua cov chaw ua haujlwm: Nws yog siv los tsim cov boilers, cov hlab ntsha siab, thiab cov tso tsheb hlau luam. Cov khoom siv no yog cov cuab yeej tseem ceeb hauv kev ua cov roj thiab roj, feem ntau yog siv rau kev tuav cov roj av, cov khoom siv roj ua kom zoo (xws li roj av, diesel, thiab roj lubricating), thiab cov roj liquefied (xws li LPG thiab LNG). Txawm tias nyob rau hauv qhov hloov pauv siab thiab qhov kub thiab txias thaum lub sijhawm ua haujlwm, cov khoom siv no tuaj yeem tswj cov qauv kev ruaj ntseg thiab tsis txhob tawg tawg, ua kom muaj kev nyab xeeb thiab tsis tu ncua ntawm kev ua haujlwm.
Kev lag luam tshuaj: Siv nyob rau hauv kev tsim cov tshuaj tiv thaiv hlab ntsha, distillation yees, thiab txheej txheem piping Cheebtsam. Cov cuab yeej no feem ntau siv rau hauv kev ua thiab khaws cov tshuaj lom neeg me me, xws li cov kuab tshuaj organic, cov kua qaub tsis muaj zog, thiab alkalis, thiab tuaj yeem hloov mus rau qhov nruab nrab corrosion thiab siab xav tau ntawm cov txheej txheem tshuaj lom neeg.
Lub zog tsim kev lag luam: Siv los tsim cov khoom siv hluav taws xob sib txawv, cov condensers, thiab boiler nruas nyob rau hauv thermal fais fab nroj tsuag thiab nuclear fais fab auxiliary systems. Cov Cheebtsam no yuav tsum tau tiv taus qhov siab ntawm - qhov kub thiab txias ntawm cov dej txias, thiab cov khoom siv zoo thiab lub zog tuaj yeem ua kom muaj kev hloov pauv tau zoo thiab ua haujlwm ntev -.
Cov Cai Thov
Qhov kub thiab txias: Haum rau nruab nrab mus rau qis dua - qhov chaw ua haujlwm kub, feem ntau ua haujlwm ntawm -29℃txog 343℃. Nws muaj qhov zoo heev uas tsis tshua muaj- qhov kub thiab txias, uas tuaj yeem tiv thaiv kev ua haujlwm tsis zoo hauv cov cheeb tsam txias lossis qis - qhov kub thiab txias ua haujlwm, thiab tseem tuaj yeem tswj cov qauv kev ruaj ntseg hauv nruab nrab-kub siab loads.
Siab bearing muaj peev xwm: Tsim los rau kev siv lub nkoj siab, nws tuaj yeem tiv taus qhov nruab nrab mus rau qhov siab siab loads, nrog qhov tsawg kawg nkaus lub zog ntawm 450 MPa (65 ksi), uas yog txaus kom ua tau raws li qhov yuav tsum tau muaj siab ntawm feem ntau cov kev lag luam siab - muaj cov khoom, xws li boilers thiab cia tso tsheb hlau luam.
Nruab nrab compatibility: Tau tshaj cov xov xwm uas tsis yog -corrosive lossis corrosive me me, xws li cov khoom siv roj av, cov roj liquefied, dej, thiab cov tshuaj chemical me me. Nws tsis haum rau qhov chaw muaj zog corrosion (xws li muaj zog acids thiab alkalis) tshwj tsis yog tias muaj kev tiv thaiv ntxiv los tiv thaiv - kev kho corrosion.
Fabrication thiab vuam tej yam kev mob: Yuav tsum tau txheej txheem vuam txheej txheem (xws li arc vuam thiab roj vuam) thaum lub sij hawm tsim, nrog tsawg preheating (feem ntau yog 60-100 degree) thiab tom qab vuam cua sov yuav tsum. Cov khoom siv zoo weldability ua kom muaj kev ncaj ncees thiab lub zog ntawm cov pob qij txha hauv kev ua haujlwm.
Tiv tauj peb ntawm beam@gneesteelgroup.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.
Cov qauv dab tsi suav nrog kev tsim khoom ntawm A516 Qib 65?
A516 Qib 65 yog tsim raws li ASTM A516 / A516M, uas qhia txog cov pa roj carbon steel phaj rau cov hlab ntsha siab uas npaj rau kev pab cuam nruab nrab thiab qis dua. Tus txheej txheem txhais cov kev xav tau ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, kev kho cua sov, thiab cov txheej txheem kuaj. Cov phaj yuav tsum tau ua raws li cov kev cai ntxiv xws li ASME Boiler thiab Pressure Vessel Code Tshooj VIII rau siv hauv cov khoom siv siab.
Dab tsi yog qhov ntom ntawm A516 Qib 65 steel?
A516 Qib 65 muaj qhov ceev ntawm kwv yees li 7.85 g / cm³, zoo ib yam li lwm cov pa roj carbon thiab tsawg- alloy steels. Qhov ntom ntom no zoo ib yam ntawm cov thicknesses sib txawv thiab kev kho cua sov, ua rau nws yooj yim los xam qhov hnyav rau lub nkoj tsim thiab fabrication. The uniform density also ensures predictable material behavior during welding and forming processes, which is important for structural integrity in pressure applications.
A516 Qib 65 puas tuaj yeem siv rau hauv cov ntawv thov siab -?
Thaum A516 Qib 65 muaj lub zog zoo, nws feem ntau yog npaj rau nruab nrab - kev pabcuam siab. Rau siab- cov ntawv thov siab, cov kws tsim khoom feem ntau xaiv cov qib siab dua - cov qib zog lossis cov hlau alloy uas tuaj yeem tiv taus ntau dua sab hauv. Txawm li cas los xij, Qib 65 tseem tuaj yeem siv tau hauv qee qhov siab - cov hlab ntsha siab yog tsim los nrog cov phab ntsa tuab thiab tsim nyog rau kev nyab xeeb, yog tias nws ua tau raws li cov qauv cai thiab cov txheej txheem toughness.
Lub melting point ntawm A516 Qib 65 yog dab tsi?
A516 Qib 65 muaj cov ntsiab lus melting zoo ib yam li lwm cov pa roj carbon steel, feem ntau ntawm 1425℃thiab 1538 degree. Qhov tseeb melting point yog nyob ntawm seb cov tshuaj muaj pes tsawg leeg, tshwj xeeb tshaj yog cov ntsiab lus carbon thiab manganese. Qhov siab melting point no ua kom cov hlau tuav nws cov qauv kev ntseeg siab ntawm qhov kub siab uas tau ntsib hauv vuam thiab qee qhov kev pabcuam. Nws kuj tso cai rau ntau yam kub- ua haujlwm thaum lub sijhawm tsim khoom.
Dab tsi yog qhov coefficient ntawm thermal expansion rau A516 Qib 65?
A516 Qib 65 muaj coefficient ntawm thermal expansion ntawm kwv yees li 11.5 × 10⁻⁶ ib℃ntawm 20℃thiab 100 degree. Tus nqi no nce me ntsis ntawm qhov kub siab dua. Cov yam ntxwv ntawm kev nthuav dav thermal yog qhov tseem ceeb rau kev tsim cov hlab ntsha uas muaj qhov kub thiab txias, vim lawv pab kwv yees qhov hloov pauv thiab muaj peev xwm thermal stresses. Kev txiav txim siab zoo ntawm kev nthuav dav yog qhov tseem ceeb los tiv thaiv buckling lossis qaug zog ua tsis tiav.
Lub thermal conductivity ntawm A516 Qib 65 yog dab tsi?
A516 Qib 65 muaj cov thermal conductivity txog li 48 W / m·K ntawm chav tsev kub, uas txo qis me ntsis ntawm qhov kub siab dua. Qhov no kuj muaj thermal conductivity ua rau nws haum rau cov tshav kub exchangers thiab cov hlab ntsha uas npaum li cas mus rau tshav kub yuav tsum tau. Cov khoom siv thermal kuj tseem cuam tshuam rau cov txheej txheem vuam, vim tias cov khoom siv hluav taws xob yuav tsum tau tswj kom tsis txhob muaj kev loj hlob ntau dhau ntawm cov nplej thiab txo cov tawv nqaij hauv cov cua sov- thaj tsam cuam tshuam.
Qhov modulus ntawm elasticity ntawm A516 Qib 65 yog dab tsi?
A516 Qib 65 muaj cov qauv ntawm elasticity ntawm kwv yees li 200 GPa ntawm chav tsev kub, zoo ib yam li cov pa roj carbon feem ntau thiab qis - alloy steels. Tus nqi no yog siv rau hauv kev suav cov qauv los txiav txim siab deflection, kev ntxhov siab, thiab kev hnyav hauv qab load. Lub modulus zoo sib xws nyob rau hauv cov thicknesses sib txawv ua kom paub tseeb tus cwj pwm hauv kev tsim lub nkoj siab, tso cai rau cov kws ua haujlwm siv cov qauv qauv thiab cov yam ntxwv kev nyab xeeb nrog kev ntseeg siab.
Poisson tus piv ntawm A516 Qib 65 yog dab tsi?
A516 Qib 65 muaj Poisson qhov piv ntawm kwv yees li 0.30, feem ntau ntawm carbon steels. Qhov sib piv no piav qhia txog cov lus teb rau sab nraud rau axial loading thiab yog siv hauv kev xam elasticity rau kev tsim cov hlab ntsha siab. Tus nqi pab engineers kwv yees li cas cov khoom yuav deform nyob rau hauv lub siab thiab sab nraud loads. Poisson qhov piv txwv ruaj khov ua kom muaj kev ua tau zoo sib xws thoob plaws ntau yam kev teeb tsa thiab kev ua haujlwm.
Qhov kev pabcuam siab tshaj plaws rau A516 Qib 65 yog dab tsi?
A516 Qib 65 feem ntau haum rau kev pabcuam kub txog li 427 degree, nyob ntawm daim ntawv thov thiab cov qauv tsim cov cai. Tshaj li qhov kub thiab txias, cov hlau lub zog thiab cov creep kuj yuav txo qis, ua rau nws tsis haum rau lub sijhawm ntev. Rau siab dua -kev siv kub, alloy steels nrog cov cua sov zoo dua feem ntau nyiam los xyuas kom meej ntev - lub sij hawm kev ruaj ntseg thiab kev ruaj ntseg.
Dab tsi yog qhov cuam tshuam toughness rau A516 Qib 65?
A516 Qib 65 yuav tsum ua kom tau raws li Charpy V-ntxhiab qhov yuav tsum tau ua kom tawv nqaij ntawm qhov kub thiab txias, feem ntau -30℃lossis qis dua. Tus qauv yuav tsum muaj qhov tsawg kawg nkaus qhov nruab nrab ntawm lub zog ntawm 27 J rau peb tus qauv, txawm hais tias qee qhov kev qhia tshwj xeeb yuav xav tau ntau dua rau cov ntawv thov tseem ceeb. Kev cuam tshuam zoo toughness ua kom muaj kev tiv thaiv rau cov pob txha tawg, tshwj xeeb tshaj yog nyob rau hauv daim hlau tuab thiab qhov chaw txias.