Dab tsi yogS355N?
S355Nyog asiab -lub zog, tsis yog- alloy structural steelqib standardized nyob rau hauvTS EN 10025-3.
"S"= Cov qauv hlau
"355"= Yam tsawg kawg nkausyield zog ntawm 355 MPa
"N"= Muab rau hauvnormalized mob, muabzoo seem stability, toughness, thiab weldability
Nws yog dav siv nyob rau hauvtxuas hniav, kev tsim vaj tsev, thiab kev siv engineering hnyav, muabsiab zog tshaj S275Nthaum tuav weldability zoo heev thiab qis -kub kev ua haujlwm.
1. Mechanical Properties
| Khoom | S355N Tus Nqi / Xav Tau | Txheem / Lus Cim |
|---|---|---|
| Yield zog (ReH) | Ntau dua lossis sib npaug li 355 MPa | TS EN 10025-3 |
| Tensile zog (Rm) | 470-630 MPa | TS EN 10025-3 |
| Elongation (A5) | Ntau dua lossis sib npaug li 20% | Hom rau structural steel |
| Impact Zog (Charpy V-notch) | Ntau tshaj lossis sib npaug rau 27 J ntawm 20 degree | Standard qib |
| Hardness (HB) | 140–190 IB | Brinell hardness |
| Qhov ntom | 7.85 g / cm³ | Txheem steel nqi |
| Modulus ntawm Elasticity | 210 GPa | Hom rau structural steel |
2. Chemical Composition (Hwm % los ntawm qhov hnyav)
| Lub ntsiab | C | Si | Mn | P | S | N |
|---|---|---|---|---|---|---|
| % | 0.22 | Tsawg dua los yog sib npaug li 0.55 | 1.60 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.012 |
S355N puas tuaj yeem siv rau hauv qhov chaw txias?
Cov Ntsiab Lus Tseem Ceeb Txog S355N hauv Cov Mob Txias
Cov xwm txheej zoo li qub
Cov "N" hauv S355N qhia tias cov hlau yognormalized, muab cov khoom zoo li qub, zoo toughness, thiabseem stability.
Impact Toughness
S355N feem ntau muajCharpy V-notch cuam tshuam lub zog ntawm Ntau dua lossis sib npaug rau 27 J ntawm 20 degree.
Raulow-kub siv, xyuas kom cov qib steel lossis qhov sib txawv ua tau raws li qhov xav tau kev cuam tshuam lub zog ntawm lub hom phiaj kub. Rau qhov chaw txias dua,S355 NLlossis S355J2 yuav nyiam, raws li cov no muajkuaj qhov toughness ntawm -20 degree.
Daim ntawv thov nyob rau hauv qhov chaw txias
Lub tsev lub moj khaum thiab lub ru tsev trusses nyob rau hauv cov huab cua txias
Cov choj los yog cov qauv steel ua haujlwm raug rau qhov txias txias
Heavy engineering qhov twg huab sub-zero kev ua tau zoo tsis tseem ceeb
S355N kuaj tau zoo thiab ua raws li cas?
1. Kev kuaj xyuas tshuab
| Hom kev xeem | Lub hom phiaj | Txheem / Lus Cim |
|---|---|---|
| Tensile Test | Kev ntsuasyield zog (ReH), tensile zog (Rm), thiabelongation (A5) | TS EN 10025-3 |
| Impact Test (Charpy V-notch) | Kev kuajtawv, tshwj xeebnormalized steel cwj pwmntawm qhov kub thiab txias | EN 10025-3; S355N feem ntau kuaj ntawm 20 degree |
| Hardness Test | lees paubnto thiab bulk hardness | Brinell (HB) los yog Rockwell |
2. Kev txheeb xyuas tshuaj lom neeg
| Txoj kev | Lub hom phiaj | Sau ntawv |
|---|---|---|
| Spectrometry / Optical Emission Spectroscopy (OES) | Measures Elements C, Si, Mn, P, S, N | Xyuas kom ua raws liTS EN 10025-3 Kev txwv tshuaj lom neeg |
| Carbon Equivalent (CE) xam | Kev ntsuasweldability | CE Tsawg dua los yog sib npaug rau 0.45% raug rau kev weldability zoo |
3. Dimensional thiab Visual Inspection
Thickness, dav, thiab flatnessraug soj ntsuam raws li kev txiav txim specifications.
Deg tsis xws luag(kev tawg, laminations, suav nrog) raug tshuaj xyuas qhov muag lossis nrogtsis yog -kev kuaj kev puas tsuaj (NDT)xws li kev kuaj ultrasonic.
GNEE Steel kuj muab ntau yam siab- lub zog steel phaj, xws li A514 Qib F, A572 Qib 50, A588 Qib A, S355JR, S690Q, SS400, S690QL, Q345B, Q345E, thiab lwm yam. Yog tias koj xav paub ntau ntxiv txog cov hlau phaj +8615824687445 lossis xa email rauinfo@gneesteels.com. Koj tuaj yeem sab laj nrog peb, thiab peb txaus siab los teb koj cov lus nug.
