S235J2yog tus qauv European (EN 10025-2) tsis yog{2}} alloy structural steel, paub txog nws qhov zoo weldability, qis-kub toughness (kev cuam tshuam los ntawm -20 degree), thiab qhov tsawg kawg nkaus yield zog ntawm 235 N / mm², ua rau nws tsim nyog rau kev tsim kho, machinery, shipbuilding qhov tseem ceeb. Lub 'S' qhia txog cov qauv hlau, '235' nws qhov tsawg kawg nkaus tawm lub zog, thiab 'J2' qhia txog qhov ntsuas kub qis ntawm -20 degree.
Cov yam ntxwv tseem ceeb:
Hom: Tsis yog - alloy carbon structural steel.
TxujEN 10025-2 tus qauv
Lub zog: Yam tsawg kawg nkaus lub zog ntawm 235 MPa (N / mm²).
Toughness: Zoo cuam tshuam toughness ntawm -20℃(tsawg kawg 27 Joules).
Weldability: Zoo heev, vim muaj cov ntsiab lus carbon tsawg.
Daim ntawv thov: Kev tsim vaj tsev, txuas hniav, tsheb thauj khoom, tshuab, offshore platforms, thiab dav dav engineering.
Composition & Properties:
Cov pa roj carbon tsawg: Txhim kho weldability thiab toughness.
Mechanical Properties: Sib txawv nrog cov tuab thiab kev kho cua sov, tab sis muaj qhov txias txias zoo - tsim cov khoom.
Sib npaug: Muaj peev xwm suav tau tias sib npaug rau qib Suav Q235D.
Variations:
tuaj yeem ua tiav ntau yam xws li xim dub, galvanized, lossis PE coated.
Kuj pom li S235J2+N rau cov xwm txheej hauv cov kav dej.
Tshuaj muaj pes tsawg leeg
| Chemical Composition % (tsawg dua lossis sib npaug) | |||||||||
| Ib txwm | Hlau | Qib Qib (Steel Number) | C | Si | Mn | P | S | Cu | N |
| TS EN 10025-2 | S235 | S235J2 (1.0117) | 0.17 | – | 1.40 | 0.025 | 0.025 | 0.55 | – |
Mechanical Properties
| S235J2 Yield Strength (Ntau dua lossis sib npaug N / mm2); Dicke (d) mm | ||||||||
| Hlau | Qib Qib (Steel Number) | d Tsawg dua los yog sib npaug rau 16 | 16< d ≤40 | 40< d ≤60 | 60< d ≤100 | 100< d ≤150 | 150< d ≤200 | 200< d ≤250 |
| S235 | S235J2 (1.0117) | 235 | 225 | 215 | 215 | 195 | 185 | 175 |
| S235J2 Tensile Strength (Ntau dua lossis sib npaug N / mm2) | |||||
| Hlau | Qib Qib (Steel Number) | d<3 | 3 Tsawg dua lossis sib npaug d Tsawg dua lossis sib npaug rau 100 | 100 | 150 | |
| S235 | S235J2 (1.0117) | 360-510 | 360-510 | 350-500 | 340-490 |
| Elongation (Ntau dua lossis sib npaug li %); Thickness (d) hli | ||||||
| Hlau | Qib Qib (Steel Number) | d Tsawg dua lossis sib npaug li 40 | 40< d ≤63 | 63 | 100 | 150 | |
| S235 | S235J2 (1.0117) | 24 | 23 | 22 | 22 | 21 |
Qib sib npaug
| Carbon Steel S235J2 sib npaug qib | |||||||||||
| European Union | Teb Chaws Asmeskas | ISO | Nyiv | Tuam Tshoj | Khab | ||||||
| Txuj | Qib Steel (Steel Number) | Txuj | Qib | Txuj | Qib | Txuj | Qib | Txuj | Qib | Txuj | Qib |
| TS EN 10025-2 | S235J2 (1.0117); S235J2G3; S235J2G4 |
ASTM A36; ASTM A283M 1 |
A36; Qib D |
ISO 630-2 | S235D | JIS G3106 | Qauv: SM400A | GB/T 700 | Q235D | TIAB SA 2062 | E250 |
1. S235J2 steel yog dab tsi?
S235J2 yog ib qho tsis yog - alloy structural steel qib ib EN 10025-2, nrog rau qhov tsawg kawg nkaus lub zog ntawm 235 MPa thiab lav qhov cuam tshuam toughness ntawm -20℃.
2. Qhov 'J2' hauv S235J2 txhais li cas?
Lub 'J2' qhia tias Charpy V- ntsuas qhov cuam tshuam ntawm -20 degree, nrog rau qhov tsawg kawg nkaus absorbed zog ntawm 27 Joules, kom ntseeg tau tias tawv nyob rau hauv txias txias.
3. Qhov txawv ntawm S235JR thiab S235J2 yog dab tsi?
Qhov sib txawv tseem ceeb yog qhov ntsuas qhov kub thiab txias: S235JR raug kuaj ntawm +20 degree, thaum S235J2 raug kuaj ntawm -20 degree, ua J2 haum rau qhov chaw txias dua.
4. Dab tsi yog cov kev siv ntawm S235J2?
Nws yog siv nyob rau hauv cov qauv uas tsis tshua muaj kub, xws li sab nraum zoov txuas hniav, tso tsheb hlau luam, offshore platforms, thiab cov khoom muaj nyob rau hauv cov huab cua txias.
5. Cov tshuaj muaj pes tsawg leeg ntawm S235J2 yog dab tsi?
Nws feem ntau muaj max 0.17% C, 1.40% Mn, 0.035% P, 0.035% S, thiab raug tua / nplua- cov nplej kho kom zoo dua qub.
6. Puas yog S235J2 weldable?
Yog lawm, S235J2 muaj qhov zoo weldability siv ntau txoj hauv kev, tab sis preheating lossis tswj cov txheej txheem yuav xav tau rau cov ntu tuab lossis qhov chaw txias heev.
7. Lub zog tawm ntawm S235J2 yog dab tsi?
Qhov tsawg kawg nkaus tawm lub zog yog 235 MPa rau thicknesses tsawg dua los yog sib npaug rau 16 hli, txo me ntsis rau cov seem tuab raws li EN 10025-2.
8. Puas yog S235J2 sib npaug rau ASTM A36?
Tsis yog, thaum lub zog zoo sib xws, S235J2 suav nrog qhov yuav tsum tau qis - qhov ntsuas kub ntawm qhov yuav tsum tau muaj, tsis zoo li tus qauv A36, ua rau nws sib ze rau qib zoo li ASTM A709 Gr. 36.
9. S235J2 piv rau S355J2 li cas?
S355J2 muaj qhov siab tshaj qhov ua tau zoo tshaj plaws (355 MPa) tab sis zoo sib xws cuam tshuam toughness ntawm -20 degree, ua rau nws muaj zog rau kev siv huab cua txias.
10. Puas yog S235J2 corrosion resistant?
Tsis yog, nws tsis yog corrosion-resistant thiab yuav tsum tau tiv thaiv coatings (xws li, painting, galvanizing) rau sab nraum zoov los yog corrosive ib puag ncig.
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.
