SA517 Qib Eyog lub siab -lub zog alloy steel phaj raug quenching thiab tempering kho. Nws yog siv feem ntau hauv kev tsim cov hlab ntsha siab thiab cov boilers, khav theeb zoo heev toughness thiab weldability, thiab yog zoo - haum rau qis - kub thiab siab - kev pab cuam siab.
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SA517 qib ETshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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C |
Si |
Mn |
P |
S |
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SA517 qib E |
0.10-0.22 |
0.08-0.45 |
0.35-0.78 |
0.035 |
0.035 |
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Cr |
Mo |
B |
Ti |
V |
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1.34-2.06 |
0.36-0.64 |
0.001-0.005 |
0.005-0.11 |
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Qib |
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SA517 qib EMechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SA517 qib E |
mm |
Min Mpa |
Mpa |
Tsawg% |
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6-65 |
690 |
795-930 |
16% |
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65-150 |
620 |
725-930 |
14% |
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Daim ntawv thov
Kev lag luam Petrochemical: Hydrocracking reactors, catalytic hloov kho reactors, desulfurization yees, kub exchangers, thiab hydrocarbon cia tanks.
Natural Gas Kev Lag Luam: Cov roj dehydration yees, compression system siab hlab ntsha, lub taub hau manifolds, LNG auxiliary heat exchangers, thiab roj cia tanks.
Fais fab Generation Sector: Boiler nruas, header kav, superheater / reheater raj, khib nyiab rov qab boiler siab qhov chaw, thiab hnub ci thermal hwj chim cia tank plhaub.
Offshore Engineering: Subsea wellhead Christmas ntoo, offshore platform topside siab hlab ntsha, riser txhawb, thiab offshore pipeline npua launchers / txais.
Nuclear & Aerospace Fields: Nuclear power coolant cia tso tsheb hlau luam, lub nkoj tsis muaj siab, aerospace hauv av siab - cov roj cia tank siab, thiab foob pob hluav taws roj ntim cov nkoj.
Hnyav Kev Lag Luam & Kev Nyab Xeeb Kev Nyab Xeeb: Cov khoom siv hlau khib nyiab kub boiler siab qhov chaw, cov tshuab hnyav hydraulic kheej kheej, accumulator plhaub, thiab cov hluav taws kub tua hluav taws kub (CO₂, siab - dej siab).
Cov Cai Thov
Petrochemical Kev Lag Luam: Ua haujlwm kub -20℃txog 550 degree, ua haujlwm siab txog li 15MPa; resistant rau hydrogen embrittlement, hydrocarbon corrosion, thiab cyclic siab fluctuations; haum rau crude roj refining thiab tshuaj intermediate synthesis txheej txheem.
Kev lag luam roj av: Ua haujlwm siab 8MPa txog 20MPa, kub ntau -40℃txog 400 degree; zoo heev tiv thaiv rau marine atmospheric corrosion thiab natural gas impurities; adaptable rau onshore thiab subsea gas kis thiab purification.
Lub Hwj Chim Loj Loj: Siab - qhov chaw siab zog (txog 25MPa), kub txog 580℃; resistant rau cyclic thermal stress thiab siab - kub yaig; haum rau thermal, ua ke lub voj voog, thiab hnub ci thermal fais fab nroj tsuag.
Offshore Engineering: Ua haujlwm siab 10MPa txog 25MPa, kub -30℃txog 450℃; withstanding ntsev tsuag corrosion, high humidity, thiab yoj cuam tshuam loads; ua raws li offshore industrial anti-corrosion thiab cov qauv muaj zog.
Nuclear & Aerospace Fields: Kub -50℃txog 500 degree, ua haujlwm siab txog li 30MPa; nruj structural kev ncaj ncees thiab kev nyab xeeb cov qauv; resistant rau radioactive nruab nrab corrosion (nuclear teb) thiab high-purity media compatibility (aerospace teb).
Hnyav Kev Lag Luam & Kev Nyab Xeeb Kev Nyab Xeeb: Siab- qhov kub thiab txias ib puag ncig (txog 600 degree), ua haujlwm siab 5MPa txog 12MPa; resistant rau txhua yam cuam tshuam thiab cyclic load; haum rau hnyav industrial thiab xwm txheej ceev kev nyab xeeb.
Cov txheej txheem siv rau SA517 Qib E
Steelmaking: Smelting & Refining: Txais hluav taws xob arc rauv (EAF) smelting ua ke nrog ladle refining (LF) thiab nqus degassing (VD) txheej txheem. nruj me ntsis tswj cov tshuaj muaj pes tsawg leeg, txo cov teeb meem impurities (S, P Tsawg dua los yog sib npaug rau 0.015%), thiab xyuas kom meej cov khoom purity thiab microstructure.
Kub Rolling: Tswj kev tsim: Siv cov cuab yeej tswj dov ntawm 1100-1200 degree, nrog ntau- dhau dov thiab tswj qhov kub thiab txias. Optimizes grain refinement, txhim kho cov khoom tensile zog thiab toughness, thiab ua kom zoo ib yam thickness thiab nto zoo ntawm steel daim hlau.
Kev kho cua sov: Normalizing & Tempering: Siv cov txheej txheem normalizing + tempering kub kho. Normalizing ntawm 890-920℃rau uniform austenitization, ua raws li cua txias; tempering ntawm 620-680℃kom tshem tawm cov kev ntxhov siab seem, kho hardness (22-28 HRC), thiab sib npaug cov khoom siv kho tshuab.
Vuam: Tswj kub & Annealing: Haum rau cov roj hlau arc vuam (GMAW), tiv thaiv hlau arc vuam (SMAW) thiab submerged arc vuam (SAW). Yuav tsum tau preheating ntawm 100-150 degree, interpass kub tswj Tsawg dua los yog sib npaug rau 300℃, thiab post-weld stress relief annealing kom ntseeg tau siab -weld pob qij txha.
Txiav & Ua: Tsawg-Deformation Processing: Tau tshaj oxy- roj txiav, plasma txiav thiab laser txiav. Txhawb txias / kub sib sau ua ke (khoov, dov) ntawm chav tsev kub rau 300 degree, nrog tsawg deformation thiab tsis pom tseeb cov khoom embrittlement tom qab ua.
Kev Kho Hniav: Los tiv thaiv -Kev Npaj Kev Tiv Thaiv Corrosion: Siv cov txheej txheem tua blasting thiab pickling kom tshem tawm cov nplais oxide thiab xeb. Ua kom zoo adhesion rau tom ntej los tiv thaiv -corrosion txheej, txhim khu kev tiv thaiv rau industrial thiab marine corrosion.
Yog xav paub ntxiv txog GNEE cov khoom steel, tiv tauj peb ntawm beam@gneesteelgroup.com. Peb tos ntsoov yuav ua haujlwm nrog koj.
Cov txheej txheem machining zoo li cas rau SA517 Qib E?
Nws tuaj yeem ua tiav los ntawm kev xa, milling, drilling, thiab sib tsoo. Kev siv siab - ceev steel lossis carbide cov cuab yeej nrog cov kua txiav kom zoo yog pom zoo los xyuas kom meej machining efficiency thiab nto zoo.
Dab tsi yog qhov kev xa khoom ntawm SA517 Qib E?
Nws raug xa mus rau hauv quenched thiab tempered (Q&T) mob. Qhov no ua kom lub zog zoo ib yam, suav nrog lub zog siab thiab toughness, ua tau raws li qhov yuav tsum tau ua ntawm kev siv lub nkoj siab.
Dab tsi yuav tsum tau ua raws li SA517 Qib E vuam?
Vuam yuav tsum ua raws li ASME Section IX (Welding Qualifications) thiab AWS D1.1 (Structural Welding Code - Steel). Kev xaiv electrode kom raug (xws li E11018-G) thiab kev tswj cov txheej txheem yog qhov tseem ceeb rau kev vuam zoo.
Qhov siab tshaj plaws ua haujlwm kub rau SA517 Qib E yog dab tsi?
Nws qhov siab tshaj plaws kev khiav hauj lwm kub yog nyob ib ncig ntawm 450℃(842℃F). Tshaj qhov kub no tuaj yeem ua rau txo qis zog thiab toughness nyob rau lub sijhawm.
Puas yog SA517 Qib E yog carbon steel lossis hlau alloy?
Nws yog qis- hlau alloy. Tsis zoo li cov pa roj carbon steel, nws muaj cov ntsiab lus alloying (Cr, Mo, Ni) uas txhim kho nws lub zog, toughness, thiab kub tsis kam rau siab - kev siv siab.
Dab tsi yog qhov yuav tsum tau elongation ntawm SA517 Qib E?
Qhov tsawg kawg nkaus elongation thaum so yog 16% (hauv 50 hli ntsuas qhov ntev). Qhov ductility no ua kom cov khoom tuaj yeem deform plastically ua ntej tawg, txhim kho cov qauv kev nyab xeeb.
Lub thermal conductivity ntawm SA517 Qib E yog dab tsi?
Nyob rau hauv chav tsev kub, nws thermal conductivity yog hais txog 45 W / (m·K) (26 Btu / (ft·h·℃F)). Cov cuab yeej no yog qhov tseem ceeb rau kev hloov pauv hluav taws xob hauv boiler thiab cov khoom siv hluav taws xob hloov hluav taws xob.
Dab tsi yog qhov coefficient ntawm thermal expansion ntawm SA517 Qib E?
Lub linear thermal expansion coefficient yog kwv yees li 11.5 × 10⁻⁶ /℃(6.4 × 10⁻⁶ /℃F) ntawm 20℃thiab 600 degree. Nws pab kwv yees thermal deformation hauv siab -kev siv kub.
Qhov txo qis ntawm cheeb tsam xav tau rau SA517 Qib E yog dab tsi?
Qhov tsawg kawg nkaus ntawm cheeb tsam yog 40%. Qhov kev ntsuas no qhia txog cov khoom siv lub peev xwm los ua kom tsis sib xws hauv qhov nro, qhia qhov zoo ductility thiab toughness.