Dab tsi yog qib S355 steel?
S355 yog qhov siab - lub zog, qis- alloy cov qauv hlau paub txog nws qhov siab tshaj tawm lub zog ntawm 355MPa, zoo weldability, thiab durability. Nws yog cov hlau ntau yam ua tau raws li European cov qauv, siv dav hauv kev tsim kho, tshuab hnyav, txuas hniav, thiab cov qauv sab nrauv. Ntau qib, xws li S355JR, S355J0, thiab S355J2, muaj, sib txawv ntawm lawv cov kev xav tau ntawm lub zog ntawm qhov kub thiab txias.
S355 yog tus qauv European rau siab - lub zog, qis- alloy cov qauv hlau, paub txog nws qhov zoo weldability thiab siab yield zog tsawg kawg
355 MPa rau. Nws yog dav siv nyob rau hauv kev tsim kho, choj engineering, hnyav machinery, offshore qauv, thiab lub zog sector vim nws lub zog thiab versatility. Cov qib zoo, xws li S355JR lossis S355J2, qhia txog cov khoom sib txawv xws li kev cuam tshuam lub zog ntawm qhov kub thiab txias.
Cov yam ntxwv tseem ceeb
Siab zog:
Lub "355" nyob rau hauv lub npe qhia qhov tsawg kawg nkaus yield zog ntawm 355 MPa.
Weldability zoo heev:
S355 steel yog ib qho yooj yim rau welding siv cov txheej txheem pa.
Siab toughness:
Nws tuav cov kev cuam tshuam zoo, tshwj xeeb tshaj yog nyob rau hauv qis qis nyob ntawm cov qib tshwj xeeb.
Ntau yam:
Nws tuaj yeem siv rau hauv ntau yam kev siv thiab tsim nyog rau kev tsim khoom.
Cov qhab nia
S355 JR: Ua tau raws li qhov cuam tshuam tsawg kawg nkaus ntawm 27J ntawm +20℃.
S355J0: Raws li qhov tsawg kawg nkaus cuam tshuam lub zog ntawm
27j0 qib.
S355J2: Raws li qhov cuam tshuam tsawg kawg nkaus ntawm 27J ntawm -20℃.
S355K2: Ua tau raws li qhov tsawg kawg nkaus lub zog ntawm 40J ntawm -20℃.
Sib npaug
ASTM: ASTM A572 Qib 50 feem ntau suav hais tias yog qhov sib npaug, vim ob qho tib si yog siab - zog, qis- alloy steels nrog cov khoom zoo sib xws.
Tuam Tshoj: Q355B yog Suav sib npaug.
Qhov twg zoo dua, S275 lossis S355?
S275 muab lub zog qis dua (tshaj li S355)tab sis muaj zoo machinability thiab yuav welded. Qhov nruab nrab qhov tsawg kawg nkaus tawm los rau S275 steel yog 275 N / mm² muab nws lub npe: S275. BS EN 10025 S355, S355JR, S355J2 thiab S355J2+N supercedes BS4360 50A, 50B, 50C 50D. S275 daim ntawv / phaj kuj tuaj yeem raug nplaim taws txiav rau qhov profile ntawm kev thov.
Dab tsi yog qhov sib npaug ntawm S355 steel?
| Qib | Txuj | Lub teb chaws / Cheeb Tsam |
|---|---|---|
| A572 Qib 50 | ASTM | Teb chaws USA |
| Q355B | GB | Tuam Tshoj |
| TSI 52-3 | DIN | Lub teb chaws Yelemees |
Dab tsi yog Asmeskas sib npaug ntawm S355?
S355 Sib npaug Phaj Qib
Ua tau raws li European qauv steel qauv EN 10025: 2004.
Zoo ib yam li ASTM A572 thiab ASTM A709 steel qib.
Cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv tshuab ntawm S355 yog tswj hwm los ntawm EN Standards Txawm li cas los xij, qee qhov haujlwm yuav xav tau cov khoom siv raws li ASTM cov qauv. ASTM tau txheeb xyuasA572-50raws li kev hloov pauv tau txais S355.
Qhov txawv ntawm A36 thiab S355 yog dab tsi?
A36 muaj zog tawm los qis (~ 250 MPa), thaum S355 pib ntawm 355 MPa. S355 muaj zog dua thiab ua raws li European qauv.
Qhov txawv tseem ceeb yog qhov ntawd
S355 muaj zog ntau dua, nrog qhov tsawg kawg nkaus tawm lub zog ntawm355MPa, piv rauA36 qhov tsawg kawg nkaus tawm lub zog ntawm250MPa. Qhov no ua rau S355 haum rau hnyav dua - cov ntawv siv lub luag haujlwm uas xav tau cov qauv sib dua, thaum A36 yog qhov dav dav dua, qis dua - tus nqi cov qauv hlau rau qhov xav tau tsawg dua. S355 yog tus qauv European, thiab A36 yog tus qauv Asmeskas.
Qhov txawv ntawm A36 thiab s355j2h yog dab tsi?
Thawj qhov sib txawv ntawmASTM A36thiabEN S355J2Hsteel yog nyob rau hauv lawvzogthiabtawv: S355J2H muaj qhov ua tau zoo dua qhov tsawg kawg nkaus lub zog thiab zoo dua qis dua - qhov kub thiab txias cuam tshuam rau qhov sib piv rau A36.
Mechanical PropertiesS355J2WP muaj zog yield ntau dua (355 MPa) thiab tensile zog piv rau A36, uas muaj lub zog tawm los ntawm 250 MPa. Qhov no ua rau S355J2WP tsim nyog rau kev thauj khoom -cov kabmob thiab cov ntawv thov uas xav tau lub zog ntau dua.
Cov ntsiab lus
Lub zog:S355J2H yog cov hlau muaj zog heev, nrog qhov tsawg kawg nkaus tawm los ntawm 355 MPa piv rau A36's 250 MPa. Qhov no tso cai rau siv cov khoom sib zog rau tib lub load-cov kev cai bearing.
Toughness:S355J2H raug kuaj tshwj xeeb thiab lav kom muaj kev cuam tshuam zoo ntawm qhov kub thiab txias qis li -20 degree, uas yog qhov tseem ceeb rau kev siv huab cua txias. A36 tsis muaj qhov yuav tsum tau ua kom muaj kev kub ntxhov tsawg.
Weldability:Ob leeg raug suav hais tias yog welded heev; Txawm li cas los xij, kev tswj hwm tshuaj muaj pes tsawg leeg ntawm S355J2H (tshwj xeeb qis carbon thiab siab dua manganese) tuaj yeem txhim kho nws cov weldability thiab tsis kam tawg hauv qee qhov xwm txheej.
Daim ntawv thov & Muaj:A36 yog dav siv thiab siv rau kev tsim qauv hauv North America qhov twg muaj zog txaus txaus. S355J2H yog EN tus qauv siv nyob rau hauv Tebchaws Europe thiab lwm qhov rau cov haujlwm uas xav tau lub zog ntau dua thiab lav qhov ua tau zoo ntawm qhov kub thiab txias, xws li txuas hniav, cranes, thiab cov khoom hnyav.
Dab tsi yog steel S355J2 sib npaug rau?
ASTM A572 Qib 50
ASTM A572 Qib 50(Tebchaws USA): Siv dav hauv kev tsim kho thiab kev siv qauv. Sib piv lub zog thiab tshuaj muaj pes tsawg leeg rau S355J2+N. DIN St52-3 (Lub teb chaws Yelemees): Paub txog nws cov weldability zoo heev thiab zoo txias-forming zog.
Dab tsi yog cov khoom siv S355J2H?
EN10210 S355J2H yog aEuropean txheem kub tiav cov qauv hollow seem ua los ntawm tsis yog- alloy zoo steel. Nws yog feem ntau siv rau cov qauv thiab cov khoom siv hauv ntau qhov kev lag luam vim nws lub zog siab thiab zoo heev toughness.
Dab tsi yog S355J2 cov khoom sib npaug hauv Suav teb?
Q345D
EN10025 S355J2 yog cov hlau tsis tshua muaj hlau feem ntau siv hauv Tebchaws Europe. EN10025 S355J2 qib sib npaug hauv Suav teb yogQ345D. Lawv cov tshuaj muaj pes tsawg leeg sib txawv me ntsis thiab cov khoom siv kho tshuab zoo sib xws.
H txhais tau li cas hauv S355J2H?
Rolled, seamless los yog welded steel kav nyob rau hauv daim ntawv ntawm hollow seem raws li DIN EN 10210 los yog DIN EN 10219, nyob rau hauv round lossis square dimension. "H" nyob rau hauv cov khoom sivqhia qib raws li ib tug hollow profile.
Puas yog S355J2 me me hlau?
S355J2 yog qhov nruab nrab tensile, qis carbon manganese hlau uas yog yooj yim weldable thiab muaj kev cuam tshuam zoo (tseem nyob rau hauv sub-zero kub). Cov khoom siv no feem ntau muab nkag rau hauv qhov tsis kho lossis tsis zoo.Machinability ntawm cov khoom no zoo ib yam li cov hlau me me.
Dab tsi yog qhov ntsuas kub rau S355J2H?
Feem ntau, Txias Tsim EN 10219 S355J2H Rectangular Hollow Section yog siv nruab nrab ntawm qhov kub thiab txias.500 ° C rau 800 ° Cthiab hauv kev pabcuam txuas ntxiv, Nws tuaj yeem siv tau txog 899 Degree C. nws tuaj yeem siv tau zoo ntawm qhov kub siab.
Qhov txawv ntawm S355JRH thiab S355J2H yog dab tsi?
S355JRH vs S355J2H:S355JRH yog qhov tsim nyog rau chav-kev siv kub, thaum S355J2H muaj qhov zoo dua qis- qhov kub thiab txias (-20 degree).
Dab tsi yog qhov sib npaug ntawm S355J2 steel?
DH36 thiab EH36, ABS Qib DH36 thiab ABS Qib EH36 yog ob qho tib si rau kev hloov ntawm S355J2+N. Qhov thib ob peb tuaj yeem hais kom koj xaiv cov qauv hlau alloy ASTM A572Gr50 (tsawg kawg yield zog 345 MPa, Tensile saum 450 MPa).
Qhov txawv ntawm S355JR thiab S355J2H yog dab tsi?
Hauv S355JR thiab S355J2 steel, JR thiab J2 qhia tias cov hlau yuav tsum tau ua +20℃cuam tshuam kev xeem thiab -20℃cuam tshuam kev xeem feem. Covtxawv qhov kub thiab txiasyog qhov sib txawv tseem ceeb ntawm S355JR thiab S355J2 steel. S355J2 steel tuaj yeem hloov kho kom haum rau qhov ua haujlwm kub qis dua li S355JR steel.
Suav sib npaug ntawm S355JR yog dab tsi?
S355JR yog European tus qauv qib rau kub- dov cov qauv hlau nrog qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa. Nws qhov sib npaug hauv lwm cov qauv muab cov khoom zoo sib xws rau kev xa khoom thoob ntiaj teb. Cov sib npaug xws li ASTM A572 Qib 50 (USA), DIN ST52-3 (Lub Tebchaws Yelemees), JIS SM490A (Nyiv), thiabGB Q345B(Tuam Tshoj).
Lub zog ntawm S355J2 steel yog dab tsi?
355 MPa rau
Qib S355J2 muaj qhov tsawg kawg nkaus yield zog ntawm355 MPa rau.
Qhov txawv ntawm S355 J2 thiab S355 K2 yog dab tsi?
Txawm li cas los xij, qhov txawv ntawm S355J2 thiab S355K2 steel phaj yog dab tsi? Nws feem ntau yog nyob rau hauv lawv qhov kev ntsuam xyuas cuam tshuam:J2 cim Charpy V-Ntshuam Impact Tested Longitudinal 27 Joules ntawm -20 ˚C hauv qab 150mm thickness. K2 cim Charpy V-Ntshuam Impact Tested Longitudinal 40 Joules ntawm -20 ˚C max 100mm thickness.
S275JR sib npaug hauv Suav teb yog dab tsi?
q275 ua
S275JR EN 10025 steel yog cov qauv qib steel nrog qhov tsawg kawg nkaus lub zog ntawm 275 N / mm². S275JR EN 10025 sib npaug steel khoom hauv Suav teb yogq275 ua
Lub zog tawm los ntawm S355J2H yog dab tsi?
Nws yog feem ntau siv los tsim cov hlab ntsha siab, cov kav xa dej thiab ntau yam tshuab engineering. S355J2H steel yeeb nkab muaj cov cuab yeej zoo heev, nrog aYam tsawg kawg nkaus taw tes ntawm 355MPa, qhov tsawg kawg nkaus tensile lub zog ntawm 510-680MPa, qhov tsawg kawg nkaus elongation ntawm 22%, thiab qhov siab tshaj plaws strip shrinkage ntawm 30%.
Qhov txawv ntawm S355JR thiab S355J0 yog dab tsi?
S355JR: Qib no muaj qhov tsawg kawg nkaus lub zog ntawm 355 megapascals (MPa) thiab lub zog tensile yam tsawg kawg nkaus ntawm 470-630 MPa. Nws muaj qhov zoo weldability, machinability, thiab formability. S355J0: S355J0 kuj muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa, tab sis nws qhov tsawg kawg nkaus tensile lub zog yog me ntsis qis, xws li ntawm 470-630 MPa.
Lub zog ntawm S355J2 khoom yog dab tsi?
470 txog 630 MPa
S355J2 steel paub txog nws cov khoom siv kho tshuab, ua rau nws zoo tagnrho rau kev siv cov qauv. Nwstensile lub zog ntawm 470 txog 630 MPa, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 355 MPa rau thicknesses hauv qab 16 hli.
Qhov txawv ntawm S355JR thiab S355J2 yog dab tsi?
Hauv S355JR thiab S355J2 steel, JR thiab J2 qhia tias cov hlau yuav tsum tau ua +20℃cuam tshuam kev xeem thiab -20℃cuam tshuam kev xeem feem. Covtxawv qhov kub thiab txiasyog qhov sib txawv tseem ceeb ntawm S355JR thiab S355J2 steel. S355J2 steel tuaj yeem hloov kho kom haum rau qhov ua haujlwm kub qis dua li S355JR steel.
Qhov sib txawv ntawm S355JR thiab S355J2+N steel
Qhov thib ob ntawm cov ntawv luv ntawm no tshwj xeeb ntawm cov qauv hlau qhia txog tus nqi resilience. Resilience qhia txog qhovkom muaj nuj nqis ntawm lub zog uas yog absorbed los ntawm alloyThaum lub sij hawm ib tug elastic deformation txheej txheem. Hauv lwm lo lus, cov khoom muaj peev xwm nqus tau lub zog thiab ua li ntawd tiv thaiv cov zog sab nraud uas hloov pauv cov hlau kom tawg.
S355JR hlaumuaj qhov cuam tshuam yam tsawg kawg nkaus ntawm 27 J nyob rau hauv 20-degree kub tej yam kev mob thaum lub thib ob hom hlau,S355J2+Nmuaj tib yam cuam tshuam lub zog tab sis nrog qhov kub ntawm -20 degrees. Hloov chaw N qhia tias cov hlau tau dhau los ua cov txheej txheem normalization, kev kho cua sov los ntawm cov khoom siv crystalline ntawm cov hlau ua kom zoo dua qub thiab ua kom zoo dua qub, ua kom lub zog ntawm cov khoom siv thiab txav mus rau qhov kev hloov pauv ntawm cov ductile-brittle.
Qhov zoo ntawm yog li-hu ua steels muaj xws li zoo heev toughness, ib tug zoo kev sib raug zoo ntawm weldability thiab machinability, hardness, tshav kub tsis kam thiab yog siv rau kev tsim kho ntawm machinery, motorway choj, lub tsev thiab nyob rau hauv lub naval sector, nrog rau cov ntsiab lus tseem ceeb ntawm kev siv qhov chaw raws li lawv tsis xav tau cov ntsiab lus txhawb, nyob rau hauv txhua rooj plaub guaranteeing kev ruaj ntseg siab tshaj plaws.
Qhov twg xaiv, S355JR lossis S355J2?
Impact Toughness (Charpy V-Ntch Test):
S355JR: Ntsuas ntawm 20℃nrog qhov tsawg kawg nkaus Charpy cuam tshuam lub zog ntawm 27 Joules.
S355J2: Kev sim ntawm -20℃nrog qhov tsawg kawg nkaus Charpy cuam tshuam lub zog ntawm 27 Joules, ua rau nws tsim nyog rau cov mob khaub thuas. Lub npe "J2" qhia tau hais tias nws muaj zog dua ntawm qhov kub thiab txias.
Application Suitability:
S355JR: Feem ntau siv nyob rau hauv cov qauv siv, kev tsim kho, thiab fabrication qhov twg qhov kub thiab txias yog nruab nrab.
S355J2: Txaus siab rau cov haujlwm uas muaj qhov kub thiab txias los yog xav tau kev cuam tshuam zoo dua hauv cov huab cua txias. Nws feem ntau raug xaiv rau cov qauv hauv ntug dej hiav txwv, txuas hniav, thiab hnyav-cov dej num hauv cheeb tsam txias dua.
Welding thiab Processing:
Ob qib yog zoo-tsim rau vuam thiab muab cov machinability zoo thiab formability. S355J2 tej zaum yuav yooj yim dua rau vuam vim nws cov tawv me ntsis txhim kho.
Xaiv qhov twg?
Rau cov ntawv thov hauv cov qauv lossis qhov kub me me, qhov twg tus nqi yog qhov tseem ceeb, S355JR feem ntau txaus.
Rau cov ntawv thov nyob rau hauv cov huab cua txias los yog qhov twg cuam tshuam toughness yog qhov tseem ceeb, S355J2 yog qhov zoo dua.
