Puas yog S275JR Tube Stainless Hlau?
No. S275JR yog ib qho uas tsis yog - alloy structural carbon steel, tsis yog stainless hlau. JR lub npe nyob rau hauv EN 10025-2 hais txog qhov tsawg kawg nkaus Charpy cuam tshuam lub zog ntawm 27 J ntawm chav tsev kub, thaum 275 hais tias qhov tsawg kawg nkaus tawm lub zog hauv megapascals. S275JR structural tube yog siv rau kev tsim qauv thiab cov khoom siv kho tshuab thiab tsis muaj cov chromium qib uas txhais cov hlau tsis muaj steel, yog li nws tsis muaj qhov tsis muaj qhov tsis zoo ntawm corrosion thiab ib txwm yuav tsum muaj kev tiv thaiv txheej rau sab nraum zoov.
Tshuaj muaj pes tsawg leeg
Cov muaj pes tsawg leeg ntawm S275JR yog tswj los ntawm cov khoom tuab. Feem ntau tshaj tawm qhov tseem ceeb tshaj plaws rau cov khoom siv txog li 40 mm tuab yog qhia hauv qab no.
| Element | Cov ntsiab lus siab tshaj (%) |
|---|---|
| Cov pa roj carbon (C) | 0.21 |
| Manganese (Mn) | 1.50 |
| Phosphorus (P) | 0.035 |
| Sulfur (S) | 0.035 |
| Nitrogen (N) | 0.012 |
Mechanical Properties
Cov yam ntxwv tseem ceeb ntawm S275JR tau teev tseg hauv qab no.
| Khoom | Kev xav tau |
|---|---|
| Yam tsawg kawg yield zog | 275 MPa rau |
| Tensile zog | 410 - 560 MPa |
| Elongation, min | 21% |
| Charpy cuam tshuam lub zog, min | 27 J ntawm chav tsev kub |
Ntsiab nta
S275JR sib txuas lub zog nruab nrab nrog cov yas zoo deformation muaj peev xwm, yog li nws ua tau zoo nyob rau hauv kev cuam tshuam thiab dynamic loads yam tsis muaj nkig tawg ntawm qhov kub thiab txias. Nws welds ntseeg tau nrog cov txheej txheem txheej txheem thiab cov khoom siv, tsim cov pob qij txha nrog qhov kev pheej hmoo tsawg ntawm kev tawg, uas ua rau kev tsim khoom yooj yim thiab kev lag luam. Nws ductility tso cai rau txias dabtsi yog khoov, sib sau thiab lub qhov punching yam tsis muaj teeb meem, thiab structural hollow seem yog nkag tau nrog square, rectangular thiab ncig cross-sections.
Corrosion Cwj Pwm thiab Kev Tiv Thaiv
Zoo li lwm cov qauv carbon steels, S275JR tsuas yog txwv tsis pub muaj kev tiv thaiv atmospheric corrosion. Rau kev siv sab nrauv, kub-dip galvanizing, pleev xim lossis hmoov txheej yuav tsum tau teev raws li ib puag ncig thiab tsim lub neej. Nyob rau hauv ib puag ncig hnyav los yog ntub dej, huab cua steel lossis coated systems yuav tsum xav txog es tsis txhob cia siab rau cov khoom liab qab.
Tej kev siv
S275JR structural raj siv nyob rau hauv lub tsev thav duab, ru tsev trusses, txuas hniav, platforms, gantries, tsheb thiab trailer thav ntawv, ua liaj ua teb machinery, cia racking thiab dav hlau fabrications. Nws kuj yog ib qho khoom siv rau kev sib dhos welded qhov twg tus kws ua haujlwm yuav tsum muaj ntawv pov thawj, qib kev ua haujlwm tau zoo.
Cov lus nug nquag
Puas yog S275JR stainless hlau?
No. S275JR yog ib qho uas tsis yog- alloy structural carbon steel txhais hauv EN 10025-2. Nws tsis muaj chromium tseem ceeb thiab tsis muaj corrosion resistant zoo li stainless hlau.
JR txhais li cas hauv S275JR?
JR qhia qhov tsawg kawg nkaus Charpy cuam tshuam lub zog ntawm 27 J ntawm chav tsev kub, muab cov theem pib ntawm kev ruaj ntseg rau kev siv cov qauv.
Lub zog tawm los ntawm S275JR yog dab tsi?
Qhov tsawg kawg nkaus tawm lub zog yog 275 MPa rau thicknesses txog 16 hli, nrog me ntsis txo qhov tseem ceeb rau cov khoom tuab raws li tau hais tseg hauv EN 10025-2.
S275JR puas tuaj yeem galvanized?
Yog lawm. Kub-dip galvanizing yog ib txoj hauv kev tiv thaiv zoo rau S275JR cov raj siv sab nraum zoov.
Qhov txawv ntawm S275JR thiab S355JR yog dab tsi?
Ob leeg yog EN 10025-2 structural steels, tab sis S355JR muaj qhov siab tshaj qhov ua tau zoo ntawm 355 MPa, ua tiav los ntawm cov ntsiab lus ntawm cov manganese ntau dua, thiab siv qhov chaw muaj peev xwm ntau dua.