Txheem thiab cov khoom siv tshwj xeeb
- Lub hom phiajEn 10210
Lub European tus qauv qhia kom paub cov txheej txheem kev mob rau kub -} - nplej steels.
- Teem nqi: S355J2H
S355: Qhia tias tsawg kawg cov paib lub zog muaj zog ntawm355 MPanyob rau hauv chav tsev kub.
J2: Charpy v - cov neeg tsis yooj yim cov kev xav tau ntawm-20 degree(27 joules yam tsawg kawg nkaus).
H: Txhais taukub -} ua tiavkev tsim khoom (raws li txwv kom txias - tsim).
Tshuaj Tshuaj Muaj Zog
| Qib hlau | ||||||
| CNtau tshaj plaws | MnNtau tshaj plaws | SiNtau tshaj plaws | PNtau tshaj plaws | SNtau tshaj plaws | NNtau tshaj plaws | |
| S235jrh | 0.17 | 1.40 | – | 0.040 | 0.040 | 0.009 |
| S355J0H | 0.22 | 1.60 | 0.55 | 0.035 | 0.035 | 0.009 |
| S275J2H | 0.20 | 1.50 | – | 0.030 | 0.030 | – |
| S355J2H | 0.22 | 1.60 | 0.55 | 0.030 | 0.030 | – |
| S275J0H | 0.20 | 1.50 | – | 0.035 | 0.035 | 0.009 |
| S355K2H | 0.22 | 1.60 | 0.55 | 0.030 | 0.030 | – |
Carbon (c)- Txhim kho cov tawv tawv thiab lub zog tab sis txo kev nce qib thiab weldability (tswj tau tsawg dua lossis sib npaug rau 0.22% rau kev tshuav nyiaj li cas).
Silicon (si)- Txhim kho lub zog thiab deoxidation thaum lub sij hawm steelmaking (txwv tsawg dua lossis sib npaug rau 0.55% kom tsis txhob brittleness).
Manganese (mn)- Ua kom muaj zog ntxiv thiab ua kom muaj zog thaum txhim kho lub zog kub (tsawg dua lossis sib npaug rau 1.6%).
Phosphorus (p) & leej faj (s)- Cov immful impurities (tsawg dua los yog sib npaug rau 0.030% txhua); Txo kev txo thiab txhawb kev tawg.
Qhov Tseem Ceeb: Cov ntsiab lus yog sib npaug kom ua tiav cov khoom siv tau zoo (lub zog, weldability, kev cuam tshuam tsis kam) rau cov ntawv thov txheej txheem.
Cov Khoom Siv Neeg Kho Tshuab
|
En 10210 |
Neeg Kho Tshuab Muaj Zog | Kev Cuam Tshuam Lub Zog | ||||
|
Paib lub zog (Wt tsawg dua los yog sib npaug rau 16 hli) |
Elongation (%) (Wt tsawg dua los yog sib npaug rau 40mm) |
Lub zog tensile (Wt tsawg dua los yog sib npaug rau 3 hli) |
Sim ntsuas kub hauv Celsius | |||
| -20 | 0 | 20 | ||||
| S355J2H | 355 | 22 | 510-680 | 27 | – | – |
| S275J0H | 275 | 23 | 430-580 | – | 27 | – |
| S275J2H | 275 | 23 | 430-580 | 27 | – | – |
| S235jrh | 235 | 26 | 360-510 | – | – | 27 |
| S355J0H | 355 | 22 | 510-680 | – | 27 | – |
| S355K2H | 355 | 22 | 510-680 | 40 | – | – |
Yield zog (ntau dua los yog sib npaug rau 355 mpa)- Qhia txog kev ntxhov siab ntawm uas muaj kev cuam tshuam mus tas li; paub meej cov qauv kev ruaj ntseg hauv kev thauj khoom.
Tensile Lub Zog (510-680 MPA)- ntsuas qhov siab tshaj plaws kev ntxhov siab ua ntej tsis ua tiav; Tuaj yeem tiv thaiv kom tawg nyob rau hauv nro.
Elongation (ntau dua los yog sib npaug rau 22%)- xav txog kev sib tw; Siab dua txhais tau tias zoo dua formability thiab tawg tsis kam.
Charpy cuam tshuam (ntau dua lossis sib npaug rau 27 J ntawm -20 degree)- Txheeb xyuas kev nruj nyob hauv ib puag ncig txias; tseem ceeb rau kev poob siab / fracture tsis kam.
Qhov Tseem Ceeb: Cov khoom no ua kom cov yeeb nkab tuaj yeem tiv taus cov khoom siv hnyav, cov rog sib luag, thiab cov kub tsawg yam tsis muaj kev ua tsis tiav.
Cov txheej txheem tsim khoom
Cov Khoom Siv Khoom Raw:Siab -} Zoo steel slabs lossis billets nrog cov tshuaj lom neeg muaj pes tsawg leeg rau S355J2H tau xaiv.
Cua Sov:Cov hlau yog rhuab mus rau ib puag ncig 1100-1200℃kom nws ductile rau kev ua si.
Dov:Lub rhuab hlau yog dov los ntawm cov mills tshwj xeeb los ua cov ntu hollow, kom meej meej phab ntsa tuab thiab hnav khaub ncaws zoo nkauj.
Cua txias thiab ncaj:Cov yeeb nkab txias maj mam kom tsis txhob muaj kev ntxhov siab sab hauv thiab ces ncaj yog tias tsim nyog.
Kev kuaj xyuas thiab kuaj:Cov yeeb nkab tiav lawm undergoes chanksitensal tshev, tsis- cov cuab yeej sim (piv txwv li cov cuab yeej siv tshuab kom ua raws li EN 10210 tus qauv.
Deg Kho (Yeem):Cov yeeb nkab yuav pleev xim los yog galvanized los txhim kho corrosion tsis kam.
Ntim thiab cia:Cov kav dej tau ntim thiab khaws cia rau kev xa khoom.
Cov Ntawv Thov
Kev tsim qauv kev lag luam: Lub tuam tsev tsim, txuas hniav, thiab cov platform ntug dej.
Cheebtsam lwm yam: Cov tshuab hnyav, thauj khoom - bearing seem.
Cuab Yeej Siv Hluav Taws Xob: Pipelines, cov kab ntawv txhawb nqa, thiab crane booms.
Qhov Zoo
Lub zog siab - rau - qhov hnyav} qhov hnyav. Piv: Haum rau hnyav - thauj khoom siv.
Zoo Weldability: Preheating tej zaum yuav tsum muaj rau cov ntu tuab.
Kev Cuam Tshuam: Txhim khu kev qha ua tau zoo nyob rau hauv qis - qhov chaw ib puag ncig.
Hauv cov ntsiab lus, En 10210 s355j2h yog lub siab- lub zog carbon hlau yeeb muab kev siv cov khoom siv zoo thiab cuam tshuam. Nws kub - tiav kev ua tiav ntau zog ua kom zoo dua qub rau cov ntawv thov kev tsim kho hauv kev tsim kho, tshuab, thiab cov vaj tse. Nrog kev lees paub ua tau zoo thiab tus nqi ua tau zoo, nws yog qhov kev xaiv txhim khu kev qha rau cov phiaj xwm engineering.
Cim npe nrov: EN 10210 S355J2H Cov Yeeb Nkab Roj Carbon Hlau, Tuam Tshoj, Tuam Tshoj Chaw Tsim Khoom, Chaw Tsim Tshuaj, Hoobkas, Nqe
