S355JR yog qhov qis- alloy siab- lub zog cov qauv hlau ua raws li European tus qauv EN10025. Nws belongs rau European tus qauv kub- dov cov qauv hlau thiab feem ntau yog xa hauv qhov kub- dov, tab sis qhov kev xa khoom tuaj yeem raug teev raws li kev xav tau. Ntawm lawv, "S" qhia tias cov hlau phaj yog European tus qauv qauv hlau, "355" sawv cev tias lub zog ntawm cov hlau phaj tsis tsawg dua 355MPa, thiab "JR" qhia txog kev xa khoom ntawm cov hlau phaj. JR Ameslikas tsis tau kuaj qhov cuam tshuam thiab cuam tshuam rau lub teb chaws tus qauv B qib. Tom qab ntawd, qib B tau hloov pauv mus rau chav ntsuas kub (20 degrees) qhov ntsuas qhov cuam tshuam.
Tshuaj muaj pes tsawg leeg
Carbon (C): Tsawg dua lossis sib npaug li 0.22%.
Silicon (Si): Tsawg dua lossis sib npaug li 0.55%.
Manganese (Mn): Tsawg dua lossis sib npaug li 1.60%.
Phosphorus (P): Tsawg dua lossis sib npaug li 0.025%.
Sulfur (S): Tsawg dua lossis sib npaug li 0.025%.
Mechanical Properties
Tawm Zog: 355 MPa.
Tensile zog: 470-630 MPa.
Elongation: Ntau dua lossis sib npaug li 22%.
Impact Toughness: 27 Joules ntawm 20 degree.
Yam ntxwv ntawm S355JR Standard Square Tube
Qhov zoo ntawm cov khoom siv no feem ntau yog tshwm sim hauv cov hauv qab no:
- Qhov sib npaug ntawm lub zog thiab lub zog: S355JR muaj lub zog tawm los siab thaum muaj cov tawv tawv zoo, ua rau nws tsim nyog rau kev thauj khoom hnyav lossis ib puag ncig.
- Weldability zoo: Vim nws qhov sib npaug ntawm cov pa roj carbon tsawg, nws tsis tshua muaj kev tawg thaum vuam, ua rau nws tsim nyog rau cov ntawv thov uas xav tau vuam.
- Huab cua tsis kam: Piv nrog cov pa roj carbon zoo tib yam, nws qhov kev tiv thaiv rau atmospheric corrosion yog me ntsis zoo dua, ua rau nws haum rau siv sab nraum zoov.
Txawm li cas los xij, nws tsis yog cov khoom siv siab - zoo. Nyob rau hauv qhov tsis tshua muaj - qhov kub thiab txias ib puag ncig, yuav tsum tau siab dua - qib steel lossis kev tiv thaiv ntxiv.
Cov ntawv thov siv
S355JR tus qauv square raj tau dav siv hauv cov teb hauv qab no:
- Cov qauv hauv tsev: Xws li lub Hoobkas txhawb nqa, ntaiv ntaiv, cov ncej ntoo, thiab lwm yam, nyiam rau lawv cov load-cov kabmob muaj peev xwm thiab ruaj khov.
- Machinery manufacturing: Siv rau cov khoom siv thav duab, conveyor siv kev txhawb nqa cov qauv, thiab lwm yam, ntsuas qhov hnyav thiab lub zog yuav tsum tau ua.
- Infrastructure: Qee cov txuas hniav, yees, thiab lwm yam, kuj siv hom raj no, tab sis kev xaiv yuav tsum yog raws li cov qauv tsim tshwj xeeb. Nws yuav tsum raug sau tseg tias qhov yuav tsum tau ua rau cov yeeb nkab loj thiab cov phab ntsa thickness sib txawv heev nyob ntawm cov ntawv thov tshwj xeeb, thiab yog li yuav tsum tau kho raws li qhov yuav tsum tau ua.
S355JR Tube Hoobkas
