Dab tsi yog qhov txawv ntawm S355JR steel thiab S355MC steel
S355JR ntog hauv qabTS EN 10025-2tus qauv, uas tswj cov kub -rolled structural steels. Nws yog ib qho uas tsis yog- alloy steel qhov twg cov tshuaj muaj pes tsawg leeg tso cai rau kev txwv ntau dua ntawm sulfur thiab phosphorus piv rau MC qib. Lub npe "JR" tshwj xeeb qhia tau hais tias cov khoom raug kuaj rau qhov cuam tshuam lub zog ntawm chav tsev kub (20 degree).
Hauv kev sib piv, S355MC yog tsim nyob rau hauvTS EN 10149-2rau thermomechanically dov steels haum rau txias txoj kev. Qhov "M" sawv rauThermomechanical Control Txheej Txheem (TMCP), ib tug sophisticated dov txoj kev uas refines lub grain qauv. S355MC muaj cov tshuaj nruj me ntsis nrog cov ntsiab lus tsis tshua muaj leej faj thiab ntxiv cov micro- alloys (xws li Niobium, Titanium, lossis Vanadium) kom muaj zog thiab tsim tau.
Read More>>>Yuav ua li cas paub qhov txawv S355JR los ntawm S355MC: Phau Ntawv Qhia Txog Kev Nyeem Ntawv Mill Test Certificate (MTC)
S355JR steel thiab S355MC steel yog ob yam khoom siv hlau sib txawv. Lawv muaj qhov sib txawv hauv qab no:
1. Kev siv cov khoom siv: S355JR steel feem ntau yog siv rau hauv cov qauv kev tsim vaj tsev thiab kev tsim khoom, xws li txuas hniav, vaj tse thiab cov cuab yeej siv tshuab. S355MC steel yog lub siab -lub zog txias- ua kub- dov steel uas tau siv dav hauv kev lag luam tsheb thiab kev tsim cov khoom txias- tsim cov khoom.
2. Lub zog muaj zog: S355JR steel feem ntau muaj qhov tsawg kawg nkaus lub zog ntawm 355MPa, thiab nws lub zog tensile yog 470-630MPa thaum lub thickness tsawg dua 16 hli. Hauv kev sib piv, S355MC steel muaj lub zog ntau dua, feem ntau 355-510MPa, thiab lub zog tensile ntawm 430-550MPa.
3. Kev sib xyaw thiab kev ua haujlwm: Cov tshuaj muaj pes tsawg leeg ntawm ob lub hlau no txawv me ntsis. S355JR steel muaj cov ntsiab lus xws li carbon, silicon, manganese, sulfur thiab phosphorus, thaum S355MC steel kuj muaj cov kab sib txuas xws li niobium, vanadium thiab titanium. Tsis tas li ntawd, S355JR steel feem ntau yog muab rau hauv kub- dov los yog kub- kho daim ntawv, thaum S355MC steel yog nkag rau hauv kub- dov daim ntawv thiab muaj cov khoom txias zoo.
4. Cov xwm txheej ntawm kev siv: Txij li S355MC steel muaj lub zog siab thiab cov khoom txias txias zoo, nws yog qhov tsim nyog rau kev tsim cov khoom uas xav tau lub zog siab thiab cov duab nyuaj. S355JR steel yog qhov tsim nyog rau kev tsim qauv engineering thiab cov cuab yeej siv tshuab.
GNEE Group tau txais cov neeg tuaj xyuas
Yog tias koj muaj kev xav tau ntau ntxiv thiab cov lus nug txog steel, thov hu rau peb!
| Feature | S355 JR(Structural) | S355MC(High Yield / Cold forming) |
| Txuj | TS EN 10025-2 | TS EN 10149-2 |
| Kev tsim khoom | Kub Rolled / Normalized | Thermomechanically Rolled (TMCP) |
| Zoo tshaj rau | Beams, Kem, General Fabrication | Bent Profiles, Automotive Chassis, Rims |
| Khoov | Limited (Risk ntawm cracking) | Zoo heev(Tight radius ua tau) |
| Weldability | Zoo | Zoo heev(Low Carbon sib npaug) |
| Impact Test | 20 degree | feem ntau -20℃rau -40℃kev ua haujlwm |
Kev xaiv ntawm S355JR thiab S355MC nyob ntawm koj qhov project qhov yuav tsum tau ua rau fabrication, mechanical zog, thiab ib puag ncig tej yam kev mob. Nov yog kev sib piv cov qauv los qhia koj qhov kev txiav txim siab:
1. Cov qauv thiab cov khoom sib xyaw
Vim Li Cas Nws Tseem Ceeb:
S355JR: Ib qho dav dav - lub hom phiaj steel qauv nrog zoo weldability thiab nruab nrab lub zog.
S355MC: Txhim kho nrog micro- alloys rau kev txhim kho formability thiab lub zog yam tsis muaj kev kho cua sov.
2. Mechanical Properties
Cov ntsiab lus tseem ceeb:
S355JR: Tsim nyog rau chav-kev siv kub; txaus toughness rau feem ntau cov qauv siv.
S355MC: Zoo dua ductility thiab txias - tsim muaj peev xwm; ua tau zoo nyob rau hauv qis- qhov kub thiab txias ib puag ncig.
3. Fabrication thiab ua
Vim Li Cas Nws Tseem Ceeb:
S355JR: Zoo tagnrho rau cov tsoos kub- dov ntu (piv txwv li, kuv- kab teeb) thiab cov qauv welded.
S355MC: Optimized rau txias- txheej txheem tsim (xws li, nias-braking, dov), txo cov kev tsim khoom thiab cov nqi.
4. Nqi thiab Sustainability
Kev pauv - tawm:
S355JR: Tus nqi qis dua tab sis tsis tshua muaj txiaj ntsig rau cov duab nyuaj.
S355MC: Cov khoom siv ntau dua tus nqi offset los ntawm kev txo cov khoom pov tseg thiab lub zog.
5. Kev xav txog ib puag ncig
Corrosion Resistance: Ob leeg yuav tsum tau coatings (xws li, galvanizing) rau ib puag ncig hnyav.
Kev Ua Haujlwm Kub: S355JR: Tsis txhob siv qis dua 0℃(tshuaj tiv thaiv toughness poob).
S355MC: Khaws cov tawv tawv mus rau -20 degree, zoo tagnrho rau cov huab cua txias.
6. Thaum Xaiv Txhua Qib
Xaiv S355JR Yog tias:
Koj qhov project muaj qhov kub -khoov seem (piv txwv li, vaj tse, txuas hniav).
Koj xav tau tus nqi -kev daws teeb meem zoo rau nruab nrab- kev siv zog.
Kev ua haujlwm kub nyob siab tshaj 0 degree.
Xaiv S355MC Yog tias:
Koj yuav tsum tau ua kom txias txias- cov duab tsim (piv txwv li, tsheb chassis, tso tsheb hlau luam).
Tus qauv yuav ntsib sub-zero kub lossis dynamic loads.
Kev txo cov khoom hnyav thiab cov khoom pov tseg yog qhov tseem ceeb.
Xaus
S355JR yog qhov mus rau- rau cov qauv kev ua haujlwm ib txwm muaj nrog kev tsim ncaj qha.
S355MC ci ntsa iab nyob rau hauv niaj hnub, lub teeb yuag tsim yuav tsum tau txias - tsim, superior qis - kub ua hauj lwm, thiab sustainability.
Cov Lus Qhia Kawg: Muab cov hlau rau koj txoj kev tsim khoom thiab kev xav tau ib puag ncig. Rau qhov txias txias - tsim lossis hnyav huab cua, S355MC cov khoom siab heev ua pov thawj nws tus nqi. Rau kev tsim qauv, S355JR muaj kev ntseeg siab thiab pheej yig.