S235 JRyog qib tsis yog- alloy structural steel qib nrog qhov tsawg kawg nkaus lub zog ntawm 235 MPa, tsim rau kev siv dav siv. Nws yog qhov cuam tshuam- kuaj ntawm +20°C (chav kub) kom ntseeg tau tias qhov hnyav tsawg kawg nkaus ntawm 27 Joules, ua rau nws tsim nyog rau cov ntawv thov hauv huab cua nruab nrab lossis ib puag ncig sab hauv tsev uas qis - qhov kub thiab txias tsis muaj kev txhawj xeeb.
S235J0yog ib qho zoo sib xws uas tsis yog- alloy structural steel nrog tib yam tsawg kawg nkaus yield zog ntawm 235 MPa tab sis yog cuam tshuam - kuaj ntawm 0 ° C. Qhov no ua kom ntseeg tau tias muaj kev ruaj ntseg hauv cov huab cua txias, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov qauv sab nraum zoov, txuas hniav, lossis ib daim ntawv thov raug nyob ze - huab cua khov lossis huab cua sov, muab kev nyab xeeb ntxiv rau kev puas tsuaj.
Qhov sib txawv tseem ceeb ntawm S235JR thiab S235J0 yog lawv qhov kev lav phib xaub ntawm qhov sib txawv ntawm qhov kub thiab txias. Ob leeg tsis yog - alloy structural steels nrog tib yam tsawg kawg nkaus yield zog (235 MPa), tab sis lub ntsiab lus qhia txog lawv cov kev sim rau kev tiv thaiv rau brittle puas.
Nov yog qhov sib piv ncaj qha:
| Feature | S235 JR | S235J0 |
|---|---|---|
| Qhov txawv tseem ceeb | Kev ntsuas cuam tshuam ntawm qhov kub siab dua | Kev ntsuas cuam tshuam ntawm qhov kub thiab txias |
| Kev ntsuas kub | +20°C (Chaw Kub) | 0 ° C |
| Yam tsawg kawg nkaus zog | 27 jul | 27 jul |
| Hom Siv Case | Cov qauv dav dav hauv cov huab cua nruab nrab / sov (sab hauv tsev lossis ambient kub). | Cov qauv raug rau cov huab cua txias, qhov twg qhov kub tuaj yeem ncav cuag lossis ncav cuag qhov khov. |
| Kev nyab xeeb cuam tshuam | Haum rau ib puag ncig uas cov khoom siv kub yuav tsis poob ze rau qhov khov hauv kev pabcuam. | Muab cov npoo kev nyab xeeb tiv thaiv kev puas tsuaj rau cov ntawv thov uas muaj chillier. |
Vim li cas qhov no tseem ceeb:
Hlau tuaj yeem ua nkig ntau dua li qhov kub thiab txias. Qib "J0" tau ntawv pov thawj los tswj nws qhov hnyav ntawm 0 ° C, ua rau nws muaj kev nyab xeeb thiab kev xaiv ntau dua rau:
Cov qauv sab nraum zoov nyob rau hauv qhov chaw sov lossis txias (xws li, txuas hniav, pylons, balconies).
Txhua daim ntawv thov qhov twg steel qhov kev pabcuam kub yuav poob mus rau khov lossis qis dua.
Hauv cov ntsiab lus:
Yog tias koj qhov project yog rau ib puag ncig sov tsis tu ncua lossis daim ntawv thov sab hauv, S235JR feem ntau txaus. Yog tias cov qauv yuav raug rau qhov txias dua, S235J0 (los yog qib siab dua li S235J2 rau -20 ° C) yuav tsum tau teev los xyuas kom meej cov qauv kev ruaj ntseg thiab kev nyab xeeb. Qhov kev xaiv feem ntau yog sau los ntawm cov lej tsim kho thiab qhov project qhov chaw nyob.
S235JR yog dab tsi?
S235JR yog ib qho tsis yog - alloy structural steel qib raws li European tus qauv EN 10025-2, paub txog nws qhov tsawg kawg nkaus tawm los ntawm 235 MPa.
Cov tshuaj muaj pes tsawg leeg ntawm S235JR steel yog dab tsi?
Nws cov khoom muaj xws li max 0.17% Carbon, max 1.40% Manganese, thiab tswj qib ntawm phosphorus thiab sulfur.
Lub zog tawm los ntawm S235JR yog dab tsi?
Qhov tsawg kawg nkaus lub zog ntawm S235JR steel yog 235 Megapascals (MPa).
Qhov txawv ntawm S235JR thiab S235J0 yog dab tsi?
Qhov sib txawv tseem ceeb yog nyob rau hauv kev cuam tshuam toughness ntawm qis kub; S235JR raug kuaj ntawm +20°C, thaum S235J0 raug kuaj ntawm 0°C.
Puas yog S235JR sib npaug rau A36?
S235JR yog ib qho zoo sib xws - lub hom phiaj steel qauv rau ASTM A36, tab sis lawv yog los ntawm cov qauv sib txawv thiab muaj qhov sib txawv me me ntawm cov khoom.
Dab tsi yog qhov ceev ntawm S235JR steel?
Qhov ceev ntawm S235JR yog kwv yees li 7.85 grams ib cubic centimeter (g / cm³), tib yam li feem ntau carbon steels.
S235JR puas tuaj yeem welded?
Yog lawm, S235JR muaj qhov zoo weldability siv cov qauv zoo li SMAW, MIG, thiab MAG yam tsis tas yuav tsum tau ua ntej- cua sov hauv ib txwm muaj.
S235JR siv rau dab tsi?
Nws yog dav siv nyob rau hauv kev tsim kho, steel ncej, machinery Cheebtsam, thiab ntau yam kev siv.
Lub 'JR' txhais li cas hauv S235JR?
Lub 'JR' qhia txog Charpy V-qhov cuam tshuam rau lub zog xav tau ntawm chav tsev kub (+20°C), uas yog 27 Joules yam tsawg kawg nkaus.
Puas yog S235JR corrosion resistant?
Tsis yog, S235JR tsis yog corrosion{1}} qib resistant. Nws yog ib qho uas tsis yog- alloy carbon hlau thiab yuav tsum muaj cov txheej txheem tiv thaiv xws li xim lossis galvanization rau kev siv sab nraum zoov.
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.
