S355JR tsawg alloy siab zog steel phaj
cov khoom siv thev naus laus zis
S355JR tsis tshua muaj alloy siab zog steel phaj nthuav dav qhia
S355JR yog cov khoom siv hlau feem ntau siv, thiab nws cov qauv siv yog EN10025-2. Cov qauv no suav nrog cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, cov khoom siv lub cev, cov khoom ua haujlwm thiab lwm yam ntawm cov kev cai steel. Ntawm lawv, cov tshuaj muaj pes tsawg leeg xav kom cov hlau muaj ib feem ntawm cov pa roj carbon, silicon, manganese, phosphorus thiab sulfur thiab lwm yam ntsiab lus, qhov kev faib ua feem thiab cov ntsiab lus ntawm cov ntsiab lus muaj feem cuam tshuam rau kev ua haujlwm ntawm cov hlau.
S355JR Mechanical Properties
Cov khoom siv kho tshuab xav tau S355JR steel kom muaj qee lub zog, toughness thiab tensile zog, uas yog cov cim tseem ceeb thaum siv cov hlau. Lub cev lub cev xav tau cov hlau kom muaj qee qhov kev tiv thaiv corrosion thiab hnav tsis kam, thiab cov ntsuas kev ua haujlwm no txiav txim siab lub neej kev pabcuam ntawm cov hlau. Machinability yuav tsum tau cov hlau yog yooj yim machined rau hauv ntau yam duab thiab ntau thiab tsawg, uas yog ib qho tseem ceeb qhia txog kev ua tau zoo nyob rau hauv steel manufacturing, ua thiab daim ntawv thov. Yog li ntawd, cov kev cai rau S355JR steel hauv EN10025-2 tus qauv yog nruj heev, uas tseem ua kom ntseeg tau tias S355JR steel tuaj yeem ua tau raws li qhov xav tau ntawm ntau yam kev siv.
S355JR yog cov qauv hlau uas tsis tshua muaj carbon, nws cov yam ntxwv tseem ceeb yog raws li hauv qab no
1. Lub zog siab: Lub zog tawm los ntawm S355JR nce mus txog 355MPa, nrog lub zog tensile siab thiab yield piv, uas tuaj yeem ua tau raws li qhov xav tau ntawm ntau yam kev ua haujlwm siab.
2. Zoo weldability: S355JR muaj weldability zoo thiab yog ib qho yooj yim mus nqa tawm ntau yam vuam txheej txheem, xws li phau ntawv arc vuam, submerged arc vuam, roj shielded vuam, thiab lwm yam.
3. Kev ua tau zoo: S355JR muaj kev ua haujlwm txias thiab kub ua haujlwm, yooj yim txiav, khoov, sib sau thiab lwm yam kev ua haujlwm.
4. Zoo corrosion kuj: S355JR muaj corrosion kuj zoo nyob rau hauv ib puag ncig atmospheric, thiab muaj peev xwm ua tau raws li qhov yuav tsum tau siv ntawm feem ntau cov qauv.
