S235JR yog cov khoom siv dav dav, qis -carbon, tsis yog- alloy structural steel (EN 10025-}2 tus qauv) paub txog nws qhov zoo weldability, 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 li kev tsim kho, kev tsim kho thiab kev tsim kho. daim hlau, thiab kis tau tus yees, txawm hais tias nws yuav tsum muaj cov txheej txheem tiv thaiv nyob rau hauv ib puag ncig corrosive.
Cov khoom tseem ceeb
Kev faib tawm:Tsis yog - alloy structural steel.
Yield Strength (yam tsawg kawg nkaus):235 MPa (rau cov ntu 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 cov 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.
Puas yog S235JR sib npaug rau A36?
Tsis yog, S235JR tsis yog qhov sib npaug ntawm A36 steel, tab sis lawv zoo sib xws thiab feem ntau siv sib hloov raws li dav dav - lub hom phiaj steel structural. Qhov sib txawv tseem ceeb nyob hauv lawv cov qauv kev tswj hwm, tshwj xeeb cov tshuaj muaj pes tsawg leeg, thiab cov kev ntsuas ntsuas.
1.Standards: S235JR yog txhais los ntawm European tus qauv EN 10025-2. A36 yog txhais los ntawm Asmeskas tus qauv ASTM A36 / A36M.
Yield Strength: Ob leeg muaj qhov tsawg kawg nkaus yield zog ntawm 235 MPa (≈ 36 ksi), uas yog vim li cas lawv feem ntau muab piv.
2.Tensile Strength: A36 muaj qhov tshwj xeeb tensile lub zog ntau yam (400-550 MPa), thaum S235JR tsuas muaj qhov tsawg kawg nkaus yuav tsum tau (360-510 MPa, nyob ntawm thickness).
3.Chemical Composition: S235JR muaj kev txwv nruj dua ntawm phosphorus thiab sulfur (impurities), ua rau nws "ntxhiab". A36 muaj ntau dua tso cai manganese cov ntsiab lus.
4.mpact Testing: Lub "JR" hauv S235JR txhais tau tias nws tau ntawv pov thawj rau Charpy cuam tshuam toughness ntawm +20℃. Standard A36 tsis tas yuav muaj kev cuam tshuam kev sim tshwj tsis yog hais los ntawm tus neeg yuav khoom.
Nyob rau hauv cov nqe lus tswv yim:
Rau ntau daim ntawv thov kev tsim kho thiab fabrication, lawv suav hais tias yog kev lag luam sib npaug. Txawm li cas los xij, rau cov lej-cov haujlwm tshwj xeeb (xws li, tom qab Eurocodes vs. ASME / AISC cov lej) lossis qhov tshwj xeeb cuam tshuam cov khoom yuav tsum tau ua, cov qauv yuav hloov tsis tau yam tsis muaj kev pom zoo los ntawm tus kws ua haujlwm lub luag haujlwm.
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 qhov 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 txheej txheem xws li SMAW, MIG, thiab MAG yam tsis tas yuav tsum tau ua ntej- cua sov raws li ib txwm muaj.
S235JR siv rau dab tsi?
Nws yog feem ntau siv 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.
