Nyob rau hauv cov txheej txheem European EN 10025-5, S355 series weathering steels feem ntau yog siv nyob rau hauv txuas hniav, lub tsev facades, railway tsheb, ntim, thiab lwm yam qauv raug rau atmospheric corrosion.S355J2 wbthiabS355J0 wbyog ob qib uas muaj nyob rau hauv no series.
Lawv yuav luag zoo tib yam hauv cov tshuaj lom neeg muaj pes tsawg leeg thiab huab cua tsis kam, nrog qhov tseeb qhov sib txawv yog lawv cov qib toughness.
Kab lus no txheeb xyuas qhov sib txawv ntawm S355J2WP thiab S355J0WP.
1. J0 thiab J2 sawv cev li cas?
Nyob rau hauv European structural steel nomenclature:
S355: Yield zog 355 MPa qib
W: Weathering steel
P: Cov ntsiab lus phosphorus tshwj xeeb rau kev txhim kho corrosion kuj
J0 / J2: Tsawg- qhov kub thiab txias cuam tshuam kev nqus zog qib
| Kos npe | Impact Absorption Zog | Kev ntsuas kub |
| J0 | Ntau dua lossis sib npaug li 27 J | 0 degree |
| J2 | Ntau dua lossis sib npaug li 27 J | -20 degree |
| J2 muaj qhov zoo tshaj qhov qis- qhov kub thiab txias, lub ntsiab lus cov qauv tsis tshua muaj kev cuam tshuam rau qhov tawg hauv qhov chaw txias. | ||
2. Tshuaj muaj pes tsawg leeg
Cov ciam teb ntawm ob qib yog ze heev, ob qho tib si poob rau hauv alloy weathering structural steels. Cov ntsiab lus tseem ceeb yog raws li hauv qab no:
- C (Carbon):Tswj ntawm qib qis kom ntseeg tau tias weldability
- Cu (Copper), Cr (Chromium), Ni (Nickel):Tsim cov huab cua xeb txheej los txhim kho corrosion kuj
- P (phosphorus):S355J0WP / S355J2WP nta nruab nrab ntawm cov ntsiab lus phosphorus siab, uas pab tsim cov txheej txheem tiv thaiv ntom ntom tab sis kuj ua rau muaj kev cuam tshuam ntawm weld rhiab heev.
Nyob rau hauv lub compositional theem, ob qib yog zoo indistinguishable los ntawm tshuaj ntsuam xyuas. Qhov sib txawv tseem ceeb tseem cuam tshuam kev ua haujlwm, tsis yog huab cua tsis kam lossis lub zog.
3. Mechanical Properties Comparison
| Yam khoom | S355J0 wb | S355J2 wb |
|---|---|---|
| Yield zog | 355 MPa rau | 355 MPa rau |
| Tensile zog | 470-630 MPa | 470-630 MPa |
| Elongation | Zoo sib xws | Zoo sib xws |
| Weldability | Zoo | Zoo |
| Impact Toughness | Ntau dua lossis sib npaug rau 27 J ntawm 0 degree | Ntau dua lossis sib npaug li 27 J ntawm -20 degree |
4. Huab cua tsis kam
WP series weathering steels hauv EN 10025-5 muaj:
- Lub peev xwm los tsim ib qho ntom ntom, corrosion- tiv taus xeb txheej
- Tus nqi corrosion qis dua li cov pa roj carbon zoo tib yam hauv ntub - ib puag ncig qhuav
- Kev tsim nyog rau kev siv sijhawm ntev - nyob rau hauv qhov chaw raug pom
S355J0WP thiab S355J2WP pom zoo tib yam huab cua tsis kam, raws li cov ntsiab lus tseem ceeb (Cu, Cr, Ni, P) zoo ib yam hauv ob qho tib si.
5. Daim ntawv thov sib txawv
Cov ntawv thov S355J0WP
- Sab nraum cov qauv thiab cov tsev nyob rau hauv cov cheeb tsam uas muaj qhov kub thiab txias
- Lub tsev facades, toj roob hauv pes Cheebtsam
- Thawv, tsheb ciav hlau
- Cov yam ntxwv ntawm cov khoom tsis raug rau qis - qhov kub thiab txias
- Haum rau ib puag ncig siab tshaj 0 degree.
S355J2WP Application Scenarios
- Cov choj, cov pej thuam, thiab cov txheej txheem ua haujlwm hauv thaj chaw txias
- High - thaj chaw siab thiab sab qaum teb lub caij ntuj no nrog kub qis mus rau -20 degree
- Cov qauv raug cuam tshuam rau cov khoom thauj (piv txwv li, choj railings, cua turbine yees)
- S355J2WP tau txais kev pom zoo rau cov haujlwm uas muaj tsawg- qhov kub thiab txias ntawm cov pob txha tawg (xws li Northern Europe, Inner Mongolia, Northeast China winters).
6. Yuav xaiv li cas hauv tej yaam num?
Yog tias tus qauv ntev -lub sijhawm ua haujlwm kub> 0 degree
Xaiv S355J0WP kom tus nqi zoo dua -kev ua tau zoo.
Yog hais tias raug -20℃ib puag ncig, cua loads, los yog cuam tshuam loads
Yuav tsum xaiv S355J2WP.
Yog tias yuav tsum tau siv vuam ntau lossis cov qauv muaj kev nyab xeeb siab
Xaiv J2 kom muaj kev nyab xeeb zoo dua.
7. Cov kev xav tsis zoo hauv qhov tseeb engineering
Kev ntseeg yuam kev 1: J2 muaj kev tiv thaiv huab cua zoo dua
Qhov tseeb: Ob qib ua kom pom huab cua zoo ib yam.
Kev ntseeg yuam kev 2: Tus nqi sib txawv tseem ceeb ntawm ob
Cov nqi feem ntau sib piv, txawm hais tias J2 hais kom them nqi me ntsis vim yog nruj dua - qhov kub thiab txias yuav tsum tau ua.Nyem lub pob hauv qab no rau ib qho kev tsocai.
Kev ntseeg yuam kev 3: J2 yog qhov yuav tsum tau ua txawm tias nyob hauv sov- tej yaam num huab cua
J0 txaus tshwj tsis yog tias qhov kub tsis tshua muaj siab lossis muaj kev cuam tshuam tsis zoo.
Yuxin steel yog tus neeg sawv cev hlau. Lub lag luam tseem ceeb ntawm peb lub tuam txhab yog: nruab nrab thiab tuab daim hlau, ductile cam khwb cia hlau yeeb nkab, seamless kav, deformed tuav, thiab lwm yam ntawm Angang, Hangang, Wugang, Nangang, Shagang thiab lwm yam steel nroj tsuag, raws li zoo raws li ntau yam steel hais txog cov khoom. Peb tuaj yeem hloov kho ntau yam kev qhia tshwj xeeb, qhov ntau thiab tsawg, cov ntaub ntawv ntawm daim hlau thiab cov khoom siv hauv tsev rau cov neeg siv nrog lub sijhawm xa khoom sai, txhim khu kev qha zoo, thiab tus nqi zoo.Yog tias koj xav paub ntau ntxiv txog peb cov khoom, thov koj xav xa email tuaj rau peb!
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