ASTM A537 Class 3 mechanical zog yog dab tsi?
ASTM A537 Qib 3yog quenched thiab tempered carbon -manganese- silicon steel phaj rau siab hlab ntsha, featuring siab zog (55 ksi min yield) thiab superior toughness. Nws muaj 75–95 ksi (515–655 MPa) tensile lub zog thiab yog tsim los rau hnyav-lub luag hauj lwm boiler thiab siab hlab ntsha daim ntaub ntawv uas yuav tsum tau txhim kho toughness.
ASTM A537 Chav Kawm 3 yog siab -lub zog, tshav kub- kho carbon-manganese-silicon steel phaj tshwj xeeb tsim los siv rau hauv fusion-welded siab hlab ntsha, tshwj xeeb tshaj yog qhov yuav tsum tau muaj cov phab ntsa hnyav. Zoo ib yam li Chav Kawm 2, qib no tau kawm nruj heevQuench thiab Temper (Q&T)Kev kho cua sov txheej txheem. Txawm li cas los xij, Chav Kawm 3 yog qhov tshwj xeeb vim tias nws tau tsim kho kom muaj qhov siab tshaj qhov tawm los thiab tensile lub zog yuav tsum tau nyob rau hauv cov phaj tuab (tshaj li 2.5 ntiv tes) piv rau Chav Kawm 2. Los ntawm cua sov cov hlau thiab ua kom txias sai rau hauv cov kua nruab nrab ua raws li tempering, Chav Kawm 3 ua tiav cov txheej txheem ua kom zoo dua qub uas ua kom muaj kev ncaj ncees thiab kev nyab xeeb hauv cov txheej txheem loj -.
Cov yam ntxwv tseem ceeb
Thick -Section Performance:Khaws lub zog tawm los ntau dua (55ksi) hauv daim hlau tshaj 2.5 ntiv tes piv rau lwm chav kawm.
Deep Hardenability:Cov tshuaj muaj pes tsawg leeg yog sib npaug los xyuas kom meej cov nyhuv Q&T nkag mus tob rau hauv cov tub ntxhais ntawm cov phaj hnyav.
Exceptional Toughness:Muab kev tiv thaiv siab ntawm sub- xoom kub, tseem ceeb heev rau kev nyab xeeb hauv cov nkoj tuab - phab ntsa.
Weld Joint Efficiency:Tsim los tswj cov khoom siv dag zog muaj zog thoob plaws lub tshav kub- thaj tsam cuam tshuam tom qab vuam.
Qib Qib
ASTM A537 Cov Lus Qhia:Tus qauv rau cua sov-kho C-Mn-Si siab hlab ntsha steel.
Chav Kawm 3:Denotes lubQuenched thiab Temperedmob tshwj xeeb optimized rau hnyav thicknesses.
Chav Kawm 1:Denotes lubLi qubmob.
Chav Kawm 2:Denotes tus qauvQuenched thiab Temperedmob.
Kev sib piv nrog ASTM A537 Chav Kawm 2
Lub zog tuav:Nyob rau hauv daim hlau 2.5 mus rau 4 ntiv tes hick, Chav Kawm 3 tuav ib tug yield ntawm 55ksi, whereas Class 2 poob rau 50 ksi.
Tsim Lub Hom Phiaj:Chav Kawm 2 yog qhov dav - qib Q&T hom phiaj; Chav Kawm 3 yog qhov kev xaiv tshwj xeeb rau lub zog siab tshaj plaws hauv cov ntu tuab heev.
Tensile Pem Teb:Chav Kawm 3 muaj qhov tsawg kawg nkaus tensile zog yuav tsum tau rau hnyav gauges piv rau nws cov chav kawm 2 counterpart.
Cov ntawv thov siv
Thick -Walled Pressure Vessels:Siv nyob rau hauv siab -siab reactors thiab separators.
Nuclear fais fab kev lag luam:Cov khoom tseem ceeb hauv kev ntim khoom thiab cua txias.
Roj & Roj Refining:Heavy -cov dej distillation kab thiab cia spheres.
Offshore Engineering:Cov qauv tsim rau qhov sib sib zog nqus- dej platforms hauv huab cua txias.
ASTM A537 Chav Kawm 3 puas tuaj yeem ua kom sov- kho?
Yog lawm, ASTM A537 Chav Kawm 3 yog tsim los rauKev kho cua sov. Nws undergoes aquenching thiab temperingtxheej txheem los txhim kho nws cov khoom siv kho tshuab. Qhov kev kho cua sov no nce cov khoom sivyield zog, tensile zog, thiabtawv, ua rau nws haum rau siab -siab thiab siab - qhov kub thiab txias. Cov txheej txheem quenching sai txias cov hlau, thaum tempering ntxiv refines nws cov khoom, kom cov hlau tuav lub zog siab yam tsis ua nkig.
Lub zog tensile ntawm ASTM A537 Chav Kawm 3 yog dab tsi?
Covtensile zogASTM A537 Chav Kawm 3 feem ntau yog los ntawm70 ksi rau 90 ksi (480 MPa rau 620 MPa)rau daim hlau mus txog2.5 ntihauv thickness. Rau cov phaj tuab dua 2.5 ntiv tes, lub zog tensile yuav raug txo me ntsis. Lub zog tensile siab no ua kom ntseeg tau tias cov khoom siv tuaj yeem tiv taus cov kev ntxhov siab thiab cov xwm txheej hnyav, ua rau nws muaj kev ntseeg siab raucov hlab ntsha siab, boilers, thiab lwm yam kev siv siab -siab.
Cov ntsiab lus carbon ntawm ASTM A537 Class 3 yog dab tsi?
Covcov ntsiab lus carbonASTM A537 Chav Kawm 3 feem ntau yog nyob nruab nrab ntawm0.15% rau 0.22%. Qhov no cov ntsiab lus uas tsis tshua muaj carbon yuav pab txhim khu lubweldabilitythiabtawvntawm cov khoom. Cov ntsiab lus carbon yog ua tib zoo tswj xyuas kom ntseeg tau tias cov hlau muaj qhov sib npaug zoo ntawm lub zog, ductility, thiab tiv thaiv kev tawg, tshwj xeeb tshaj yog nyob rau hauvsiab -siabthiabsiab -kubtej yam kev mob, qhov twg cov khoom siv yog qhov tseem ceeb.
|
Element |
Kev sib xyaw (%) |
|---|---|
|
Cov pa roj carbon (C) |
0.24 max |
|
Manganese (Mn) |
0.70-1.35 (≤40mm thickness) 1.00-1.60 (>40 hli thickness) |
|
Phosphorus (P) |
0.035 max |
|
Sulfur (S) |
0.035 max |
|
Silicon (Si) |
0.15-0.50 |
|
Copper (Cu) |
0.35 max (yog tias muaj) |
|
Nickel (Ni) |
0.25 max (yog tias muaj) |
|
Chromium (Cr) |
0.25 max (yog tias muaj) |
|
Molybdenum (hli) |
0.08 max (yog tias muaj) |
Mechanical Properties ntawm ASTM A537 Chav Kawm 3
|
Khoom |
Tus nqi |
|---|---|
|
Tensile zog |
75-95 ksi (515-655 MPa) (≤65mm) 70-90 ksi (485-620 MPa) (>65-100mm) 65-85 ksi (450-585 MPa) (>100-150 hli) |
|
Yield zog |
55 ksi (380 MPa) min (≤65mm) 50 ksi (345 MPa) min (>65-100mm) 40 ksi (275 MPa) min (>100-150 hli) |
|
Elongation (hauv 50mm) |
22% min (≤100mm) 20% min (>100 hli) |
|
Kev txo qis hauv cheeb tsam |
Tsis tau teev tseg, feem ntau siab |
ASTM A537 Chav Kawm 3 yog dab tsi?
ASTM A537 Chav Kawm 3 yog lub siab -lub zog, quenched thiab tempered steel phaj tsim los siv rau hauv cov hlab ntsha siab, boilers, thiab kub exchangers. Cov hlau no yog cua sov- kho los txhim kho nws cov khoom siv kho tshuab, xws li lub zog tawm los, lub zog tensile, thiab toughness. Nws yog siv nyob rau hauv siab - siab thiab siab - kub ib puag ncig xws litshuaj nroj tsuag, roj refineries, thiabtsim hluav taws xobqhov twg txhim khu kev qha kev ua tau zoo thiab durability yog ib qho tseem ceeb los xyuas kom meej kev nyab xeeb thiab kev ua hauj lwm efficiency.
Cov kev lag luam twg siv ASTM A537 Class 3?
ASTM A537 Chav Kawm 3 feem ntau yog siv hauv kev lag luam uas xav tau cov ntaub ntawv los tiv thaiv qhov kub thiab txias. Cov no suav nrogroj & roj, chemical ua, tsim hluav taws xob, thiabpetrochemicalkev lag luam. Cov hlau yog qhov tseem ceeb rau kev tsim cov khoom tseem ceeb xws licov hlab ntsha siab, boilers, thiabkub exchangers, qhov twg cov khoom siv yuav tsum ua haujlwm siab -siab chav, corrosive tshuaj, thiab mechanical stress nyob rau lub sij hawm ntev.
ASTM A537 Chav Kawm 3 yog dab tsi?
Yam tsawg kawg nkausyield zogASTM A537 Chav Kawm 3 yog50 ksi (345 MPa)rau thicknesses mus txog2.5 nti (64 hli). Rau cov phaj tuab dua 2.5 nti (txog li4 ntiv), lub zog tawm los txo mus rau45 ksi (310 MPa). Qhov no tso cai rau cov khoom siv los tiv taus siab - cov kev mob siab thaum tuav nws cov qauv kev ncaj ncees. Nws yog qhov zoo tagnrho rau ib puag ncig uas cov khoom siv zog yog qhov tseem ceeb, xws li hauvcov hlab ntsha siabthiabboilers.
Cov tshuaj muaj pes tsawg leeg ntawm ASTM A537 Class 3 yog dab tsi?
Cov tshuaj muaj pes tsawg leeg ntawm ASTM A537 Chav Kawm 3 suav nrog cov ntsiab lus xws li carbon (0.15% - 0.22%), manganese (1.10% - 1.60%), thiab silicon (0.20% - 0.50%). Nws kuj yuav muaj me me ntawmchromium(Cr),molybdenum(Mo),phosphorus(P), thiableej faj(S). Cov ntsiab lus no txhawb nqa cov hlauzog, tawv, thiabtiv taus siab -kub oxidation, ua rau nws zoo tagnrho rau cov hlab ntsha siab thiab boilers uas ua haujlwm nyob rau hauv huab cua txias.
Puas yog ASTM A537 Class 3 weldable?
Yog lawm, ASTM A537 Class 3 yogweldablesiv cov txheej txheem vuam zoo liMIG, TIG, thiabnplaum welding. Vim nws lub zog siab, preheating thiab post-weld heat treatment (PWHT) raug pom zoo, tshwj xeeb tshaj yog rau cov seem tuab, kom tsis txhob tawg. PWHT pab txo qis kev ntxhov siab, ua kom cov khoom khaws nws cov khoom siv tom qab vuam. Qhov no weldability ua rau nws ntau yam rau complex fabrication nyob rau hauvcov hlab ntsha siab, boilers, thiabkub exchangers.
Lub hardness ntawm ASTM A537 Class 3 yog dab tsi?
CovBrinell hardnessntawm ASTM A537 Chav Kawm 3 feem ntau ntog hauv qhov ntau ntawm200-250 HB. Qib ntawm hardness no muab qhov zoo sib npaug ntawm lub zog thiab toughness, tso cai rau cov hlau los tiv thaiv txhua yam kev nyuaj siab, puas, thiab thermal cycling. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev siv hauvcov hlab ntsha siabthiabkub exchangers, qhov twg ob lub zog thiab tsis kam hnav yog qhov tseem ceeb rau kev ua haujlwm thiab kev ua haujlwm ntev.
Dab tsi yog qhov cuam tshuam ntawm qhov kub thiab txias ntawm ASTM A537 Chav Kawm 3?
ASTM A537 Chav Kawm 3 ua tau zoo ntawmkub kubthiab yog tsim los tiv thaiv thermal qaug zog thiab tswj nws lub zog nyob rau hauv huab cua kub heev. Txawm li cas los xij, qhov ntev ntev ntawm qhov kub thiab txias tshaj nws qhov kev pom zoo tuaj yeem ua rau txo qis hauv nws cov khoom siv tshuab. Hauv siab - kev siv siab xws liboilerslos yogkub exchangers, Nws yog ib qho tseem ceeb los saib xyuas qhov ntsuas kub kom tsis txhob thermal degradation ntawm cov khoom, uas tuaj yeem cuam tshuam rau nws cov kev ua tau zoo thiab kev nyab xeeb.
Tiv tauj peb ntawm info@gneesteels.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.
