S235 JRyog siv dav, qis-carbon, tsis yog- alloy structural steel (EN 10025-}2 tus qauv) paub txog nws cov weldability zoo, ductility, thiab lub zog, tsim los ntawm qhov tsawg kawg nkaus tawm lub zog ntawm 235 MPa thiab ib tug +20℃cuam tshuam kuaj (J), ua rau nws zoo tagnrho rau cov khoom siv dav dav, kev tsim kho thiab kev tsim kho, kev tsim kho vaj tse, thiab kev tsim vaj tsev. towers, txawm hais tias nws yuav tsum tau tiv thaiv coatings nyob rau hauv corrosive ib puag ncig.
Cov khoom tseem ceeb
Kev faib tawm:Tsis yog - alloy structural steel.
Yield Strength (yam tsawg kawg nkaus):235 MPa (rau cov seem tuab).
Tensile zog:360-510 MPa (nws txawv nrog tuab).
Impact Zog:27 Joules ntawm 20℃(qhia los ntawm 'JR').
Weldability:Zoo heev; tuaj yeem welded yam tsis muaj ua ntej- cua sov lossis tom qab- kev kho cua sov rau feem ntau daim ntawv thov.
Kev sib xyaw:Cov ntsiab lus qis carbon tsawg (max ~ 0.17%), nrog tswj cov nyiaj Manganese, Phosphorus, Sulfur, thiab tooj liab.
Daim ntawv thov
Kev tsim kho:Cov tsev, txuas hniav, cov khoom siv.
Engineering:Machinery qhov chaw, lub zog xa hluav taws xob yees, cov khoom siv dav dav.
Fabrication:Kuv-beams, channels, angle bars, phaj, thiab kev cai CNC qhov chaw.
Qhov zoo thiab qhov tsis zoo
Pros:Tus nqi -zoo, muaj nyob rau hauv, zoo mechanical zog, weldability zoo heev.
Cons:Kev tiv thaiv corrosion qis dua li cov hlau alloy siab dua, xav tau cov txheej txheem tiv thaiv.
Chemical Composition Ntawm Steel S235JR
|
C |
Mn |
P |
S |
N |
Cu |
|
Tsawg dua lossis sib npaug li 0.17 |
Tsawg dua lossis sib npaug li 1.40 |
Tsawg dua lossis sib npaug li 0.035 |
Tsawg dua lossis sib npaug li 0.035 |
Tsawg dua lossis sib npaug li 0.12 |
Tsawg dua los yog sib npaug li 0.55 |
Lub zog tawm los ntawm S235JR yog dab tsi?
Qhov tsawg kawg nkaus tawm lub zog (ReH) ntawm S235JR yog 235 Megapascals (MPa).
Qhov no yog tus yam ntxwv ntawm qib, raws li qhia los ntawm "235" hauv nws lub npe. Raws li EN 10025-2 tus qauv, qhov no yog qhov kev ntxhov siab uas cov khoom pib deform plastically.
Tseem ceeb Technical Note:
Qhov tsawg kawg nkaus tus nqi ntawm 235 MPa no siv tshwj xeeb rau cov hlau nrog lub nominal thickness Tsawg dua los yog sib npaug rau 16 hli. Rau cov seem thicker, qhov tsawg kawg nkaus yield zog yuav txo tau raws li tus qauv:
>16mm txog 40mm: 235 MPa rau(Ceeb Toom: Qee cov lus qub sau npe 225 MPa rau qhov no; tam sim no EN 10025-2: 2004 npe 235 MPa)
>40mm txog 63mm: 225 MPa
>63mm txog 80mm: 215 MPa
>80mm-100 hli: 215 MPa
Hauv cov ntsiab lus:Rau feem ntau daim ntawv, phaj, thiab seem qhov ntau thiab tsawg (tsawg dua los yog sib npaug li 16 hli tuab), qhov lav qhov ua tau zoo tshaj plaws yog 235 MPa (kwv yees li 34,000 psi). Rau cov khoom tuab, cov nqi tsawg kawg nkaus yuav tsum raug kuaj xyuas raws li tus qauv cov khoom thickness rooj.
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 degree, thaum S235J0 raug kuaj ntawm 0℃.
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-notch cuam tshuam lub zog xav tau ntawm chav tsev kub (+20 degree), 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.
