S235JR hlau, tseem hu ua EN 1.0037, yog ib qho qis - carbon structural steel dav siv hauv kev tsim kho, tsim khoom, thiab kev lag luam tsheb. GNEE Steel yog cov chaw tsim khoom thiab cov chaw muag khoom ntawm S235JR daim hlau, cov ntawv txheeb, thiab cov khoom siv, muab kev xa khoom sai, daim ntawv pov thawj zoo, thiab kev txhawb nqa.
S235JR hlau
Cov txiaj ntsig tseem ceeb ntawm S235JR steel los ntawm GNEE:
Yam tsawg kawg yield zog: 235 MPa
Tensile zog: 360-510 MPa
Weldability zoo heev thiab txias - tsim cov khoom
Fully tua steel ntau lawm kom zoo ib yam
Tshuaj muaj pes tsawg leeg ntawm S235JR Steel
| Element | Cim | Qhov feem pua (%) |
|---|---|---|
| Cov pa roj carbon | C | 0.12 – 0.20 |
| Manganese | Mn | 0.30 – 0.60 |
| Silicon | Si | 0.10 – 0.40 |
| Phosphorus | P | Tsawg dua lossis sib npaug li 0.045 |
| Sulfur | S | Tsawg dua lossis sib npaug li 0.045 |
Txheej txheem cej luam:
Carbon txhim kho lub zog thiab hardness. Manganese txhim khu lub zog tensile thiab hardenability. Silicon txhawb deoxidation thiab ntxiv zog. Tsawg phosphorus thiab sulfur kom ductility thiab weldability.
Mechanical Properties ntawm S235JR Steel
| Khoom | Qhov xwm txheej | Test Temp | Tus nqi (Metric) | Daim ntawv pov thawj |
|---|---|---|---|---|
| Yield zog (0.2% offset) | Kub Rolled | Chav Temp | 235 MPa rau | TS EN 10002-1 |
| Tensile zog | Kub Rolled | Chav Temp | 360-510 MPa | TS EN 10002-1 |
| Elongation | Kub Rolled | Chav Temp | Ntau dua lossis sib npaug li 20% | TS EN 10002-1 |
| Kev txo qis ntawm cheeb tsam | Kub Rolled | Chav Temp | Ntau dua lossis sib npaug li 40% | TS EN 10002-1 |
| Hardness (Brinell) | Kub Rolled | Chav Temp | Tsawg dua lossis sib npaug li 160 HB | TS EN 10003-1 |
| Impact Strength (Charpy V-notch) | Kub Rolled | -20 degree | Ntau dua lossis sib npaug li 27 J | TS EN 10045-1 |
S235JR steel yog qhov zoo tagnrho rau kev siv cov qauv vim nws qhov sib xyaw ua ke ntawm lub zog, ductility, thiab cuam tshuam toughness.
Lub cev muaj zog ntawm S235JR
| Khoom | Tus nqi (Metric) | Tus nqi (Imperial) |
|---|---|---|
| Qhov ntom | 7.85 g / cm³ | 0.284 lb/in³ |
| Melting Point | 1420-1540 degree | 2590-2810℃F |
| Thermal conductivity | 50 W/m·K | 34.5 BTU·in/h·ft²·° F |
| Tshwj xeeb kub muaj peev xwm | 0.49 kJ/kg · K | 0.12 BTU/lb ·℃F |
| Hluav taws xob Resistivity | 0.0000175 Ω·m | 0.000011 Ω·in |
| Coefficient ntawm Thermal Expansion | 11.0 x10⁻⁶/K | 6.1 x10⁻⁶ /℃F |
Cov khoom no ua rau S235JR haum rau kev thauj khoom -cov kabmob thiab cov chaw nruab nrab thermal.
Fabrication thiab Vuam Properties
- Weldability: Zoo heev, haum rau MIG, TIG, thiab SMAW. Preheating feem ntau tsis tas yuav tsum tau.
- Machinability: Zoo; txheeb ze machinability Performance index ~ 70% piv rau AISI 1212. Qhov zoo tshaj plaws txiav ceev ~ 80 m / min rau tig.
- Formability: Siab; tuaj yeem khoov, dov, lossis zoo li lub vojvoog khoov 2-3 × thickness.
- Kev kho cua sov: Annealing (600-700 degree) txhim kho ductility; normalizing (850-900 degree) refines grain qauv.
Kev siv ntawm S235JR Steel
- Kev tsim kho: Cov kab teeb, kab, thiab daim hlau
- Automotive: Chassis Cheebtsam thiab thav duab
- Manufacturing: Machinery thav duab thiab kev txhawb nqa qauv
- Shipbuilding: Hull cov qauv xav tau weldability
- Industrial: Lifting khoom, trailer, thiab cranes
S235JR yog qhov zoo dua rau cov haujlwm uas tus nqi -kev ua tau zoo, muaj, thiab cov khoom siv kho tshuab txhim khu kev qha yog qhov tseem ceeb.
Qib sib npaug thiab International Standards
| Txuj | Qib sib npaug | Lub teb chaws / Cheeb Tsam |
|---|---|---|
| ASTM | A36 | Teb chaws USA |
| DIN | Qhov 37-2 | Lub teb chaws Yelemees |
| JIS | TSI 400 | Nyiv |
| GB | Q235 | Tuam Tshoj |
| ISO | S235 JR | Thoob ntiaj teb |
Txawm hais tias cov qhab nia zoo sib xws, qhov sib txawv me me ntawm cov khoom sib xyaw lossis lub zog tawm los yuav tsum raug txiav txim siab hauv cov ntawv thov tseem ceeb.
GNEE Steel muaj hwm S235JR daim hlau nrog lav cov khoom siv kho tshuab, weldability, thiab formability. Zoo meej rau cov khoom siv, tsheb, thiab kev lag luam, S235JR ua kom lub zog, ductility, thiab nqi zog.
Tiv tauj peb tam sim no rau qhov tseeb S235JR steel phaj nqe daim ntawv teev npe
S235JR khoom yog dab tsi?
Steel qib S235JR yog ib qho kev siv dav dav thiab tshuab hlau uas tau ua raws li EN 10025-2 tus qauv. Kev faib tawm: Tsis yog - alloy structural steel. Cov khoom lag luam: Semi-cov khoom tiav, cov khoom siv ntev thiab cov ntawv kub dov, hlau pas nrig thiab forgings.
S235JR steel sib npaug yog dab tsi?
ASTM A36: ASTM A36 yog ib qho American standard carbon structural steel specification, uas yog feem ntau siv nyob rau hauv cov qauv siv. Nws yog ze tshaj rau S235JR hais txog cov tshuaj muaj pes tsawg leeg.
JR sawv cev rau dab tsi hauv S235JR?
S235JR: Tsab ntawv "S" sawv cev rau "Structural," qhia tias cov hlau yog cov hlau tsim. Tus lej "235" sawv cev rau qhov tsawg kawg nkaus yield zog, piv txwv li, 235 MPa (megapascals). Lub cim "JR" yog hais txog qhov toughness thiab cuam tshuam tsis kam ntawm cov hlau.
Lub zog tawm los ntawm S 235 Jr yog dab tsi?
Qib S235JR muaj qhov tsawg kawg nkaus tawm lub zog ntawm 235 MPa. Lub zog cuam tshuam ntawm chav tsev kub ntawm 20℃yog tsawg kawg yog 27 joules. Cov hlau ntawm qib S235JR yog qhov tsim nyog rau qis- qhov kev ntxhov siab hauv steel thiab mechanical engineering.
Puas yog S235JR yog cov hlau me me?
S235JR yog ib qib tshwj xeeb ntawm cov hlau me me uas tau teev tseg raws li EN 10025. Thaum nws zaum hauv cov hlau me me, nws tau tswj cov tshuaj thiab cov khoom siv kho tshuab uas ua rau nws kwv yees ntau dua li cov hlau tsis zoo lossis tsis zoo.
S235JR steel khoom yog dab tsi?
S235JR yog ib qho qis-carbon, tsis yog- alloy structural steel txhais los ntawm EN 10025-2 tus qauv. Tus "S" sawv cev rau "cov qauv," txhais tau hais tias nws yog tsim los siv rau hauv cov khoom siv thauj khoom ntawm cov tsev, tshuab, lossis kev tsim kho vaj tse.
Qhov txawv ntawm S235JR thiab S355JR yog dab tsi?
Yield Strength: S235JR muaj lub zog nominal yield ntawm 235 MPa, thaum S355JR muaj lub zog ntau dua ntawm 355 MPa. Qhov no 50% nce nyob rau hauv lub zog yield ua rau S355JR muaj peev xwm tiv taus ntau dua loads, ua rau nws tsim nyog rau siab - kev nyuaj siab structural applications.