S275JR yog ib qho uas tsis yog- alloy, qis- carbon structural steel qib txhais raws li European tus qauv EN 10025-2. Nws yog ib qho ntawm cov qib steel siv dav tshaj plaws hauv kev tsim kho thiab engineering vim nws cov khoom sib npaug thiab kev ua haujlwm zoo.
Ntsiab Specifications
Lub npe "S275JR" muab cov ntsiab lus ntawm cov khoom siv:
S: Qhia tias nws yog Cov Khoom Siv Hluav Taws Xob.
275: Qhia tawm qhov tsawg kawg nkaus lub zog ntawm 275 MPa (rau thicknesses tsawg dua los yog sib npaug rau 16 hli).
JR: Qhia txog Charpy V-qhov ntsuas qhov ntsuas qhov yuav tsum tau muaj tsawg kawg yog 27 Joules ntawm chav tsev kub (+20℃).
Daim ntawv thov
S275JR feem ntau yog siv rau kev tsim khoom ntev thiab tiaj tus rau welded lossis riveted qauv. Common siv muaj xws li:
Kev tsim kho:Beams, kab, thiab daim hlau rau cov tsev thiab txuas hniav.
Engineering:Tsawg-load tshuab qhov chaw xws li bushings, shafts, thiab axles.
Kev lag luam:Cia tanks, roj thiab roj platforms, thiab rail kev lag luam Cheebtsam.
Qhov Zoo Tshaj Plaws
Weldability:Nws cov ntsiab lus carbon tsawg ua rau nws yooj yim heev rau vuam siv cov txheej txheem txheem.
Machineability:Muab kev ua haujlwm zoo ua haujlwm zoo ib yam li lwm cov hlau me me.
Formability:Yuav ua tau yooj yim nkhaus, folded, los yog txias - tsim rau ntau yam qauv duab.
S275JR feem ntau yog siv rau hauv cov qauv siv dav dav uas yuav tsum muaj lub zog siab dua S235 qib, yam tsis tas yuav tsum muaj qhov qis - qhov kub thiab txias cuam tshuam toughness. Nws cov khoom sib npaug ua rau nws muaj ntau yam thiab siv dav hlau qib.
Cov ntawv thov raug suav nrog:
Kev tsim vaj tsev: Cov kab ke, kab, kab, thiab lub ru tsev trusses rau cov tsev lag luam, cov tsev lag luam, thiab ntau yam - zaj dab neeg.
Txuas hniav & Infrastructure: Cheebtsam rau txoj kev txuas hniav, cov neeg taug kev txuas hniav, thiab kev txhawb nqa cov qauv uas lub zog thiab weldability yog qhov tseem ceeb.
Heavy Machinery & Khoom siv: Bases, thav duab, booms, thiab cov khoom txhawb nqa rau cranes, kev ua liaj ua teb machinery, thiab cov khoom siv mining.
Kev Thauj Mus Los: Chassis Cheebtsam rau cov tsheb thauj khoom, tsheb thauj khoom, thiab tsheb ciav hlau hauv qab.
General Fabrication & Engineering: Platforms, walkways, staircases, guardrails, storage racks, and a wide variety of custom{0}}fabricated parts.
Vim li cas thiaj xaiv S275JR dua lwm qib?
Lub zog siab dua S235JR: Nws 275 MPa qhov tsawg kawg nkaus lub zog muaj zog muaj kwv yees li 17% siab dua load-cov kabmob muaj peev xwm tshaj S235JR, tso cai rau kev txuag qhov hnyav lossis nce kev nyab xeeb.
Zoo Weldability & Formability: Zoo li lwm cov qauv hlau, nws yooj yim welded, txiav, thiab tsim siv cov txheej txheem.
Tus nqi- Ua tau zoo: Nws muab qhov sib npaug zoo ntawm qhov muaj zog ntxiv thiab cov nqi khoom siv, ua rau nws xaiv kev lag luam rau ntau qhov haujlwm.
Standardized & Readily Available: Raws li ib qho tseem ceeb EN 10025-2 qib, nws yog dav tsim thiab stocked thoob ntiaj teb.
Kev txwv tseem ceeb:S275JR yog qhov cuam tshuam - kuaj tsuas yog ntawm +20℃. Yog li ntawd, nws tsis pom zoo rau cov txheej txheem tseem ceeb uas raug ntsuas kub qis dua 0 degree, qhov twg qib zoo li S275J0 lossis S275J2 yuav tsum tau teev tseg. Rau kev siv sab nraum zoov, kev tiv thaiv corrosion (thawj xim, galvanizing) yog yuav tsum tau.
1. S275JR steel yog dab tsi?
S275JR yog ib qho uas tsis yog - alloy structural steel qib ib EN 10025-2, nrog rau qhov tsawg kawg nkaus lub zog ntawm 275 MPa thiab lav qhov cuam tshuam toughness ntawm chav tsev kub (+20℃).
2. Lub zog tawm ntawm S275JR yog dab tsi?
Qhov tsawg kawg nkaus yield zog ntawm S275JR yog 275 MPa rau cov khoom thickness mus txog 16 hli, txo me ntsis rau thicker seem raws li tus qauv.
3. Qhov txawv ntawm S235JR thiab S275JR yog dab tsi?
S275JR muaj lub zog qis dua qhov qis dua (275 MPa vs . 235 MPa), muab kev thauj khoom ntau dua -cov kabmob muaj peev xwm rau qhov ntev thiab kev siv zoo sib xws.
4. Qhov 'JR' txhais li cas hauv S275JR?
Lub 'JR' qhia tau hais tias cov hlau yog Charpy V-qhov cuam tshuam ntawm qhov ntsuas ntawm +20℃nrog qhov tsawg kawg nkaus absorbed zog ntawm 27 Joules, ua kom chav tsev kub toughness.
5. Puas yog S275JR sib npaug rau ASTM A36?
Thaum nyob ze ntawm lub zog, S275JR (275 MPa yield) muaj zog me ntsis dua li tus qauv A36 (250 MPa yield) thiab suav nrog qhov yuav tsum tau muaj kev cuam tshuam, yog li lawv tsis sib npaug ncaj qha.
6. S275JR siv rau dab tsi?
Nws yog dav siv nyob rau hauv kev tsim kho, qauv thav duab, machinery Cheebtsam, txuas hniav, thiab kev lag luam daim ntawv thov uas yuav tsum tau muaj zog ntau dua S235 qib.
7. S275JR puas tuaj yeem welded?
Yog lawm, S275JR muaj qhov zoo weldability siv cov kev sib txawv xws li SMAW, MAG, lossis TIG, tsis tas yuav tsum tau ua ntej- cua sov nyob rau hauv ib txwm muaj thiab cov tuab tuab.
8. Cov tshuaj muaj pes tsawg leeg ntawm S275JR yog dab tsi?
Nws muaj pes tsawg leeg feem ntau suav nrog max 0.21% C, max 1.50% Mn, thiab tswj kev txwv rau phosphorus thiab sulfur (piv txwv li, P Tsawg dua lossis sib npaug rau 0.035%, S Tsawg dua lossis sib npaug 0.035%).
9. Puas yog S275JR corrosion resistant?
Tsis yog, S275JR tsis yog corrosion{1}}resistant. Zoo li lwm yam carbon steels, nws yuav tsum tau tiv thaiv txheej xws li pleev xim los yog galvanizing rau sab nraum zoov siv.
10. Dab tsi yog cov khoom siv kho tshuab ntawm S275JR?
Cov khoom tseem ceeb suav nrog lub zog tawm los Ntau dua lossis sib npaug ntawm 275 MPa (rau t Tsawg dua lossis sib npaug li 16 hli), tensile lub zog ntawm 410-560 MPa, thiab elongation yam tsawg kawg nkaus ntawm 22-23% nyob ntawm thickness.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
