Cov hlau tsis-alloy (carbonanese steel) cov qib qis ntawm cov qauv siv tshuaj yeeb no
Paib lub zog thiab tensile lub zog
| Qib hlau | Yield zog (mpa) | Tensile lub zog (mpa) | Cov Kev Siv Raug Raug |
| S235jrh | Ntau dua los yog sib npaug rau 235 | 360-510 | Lub Hnav Tsho Hnav, Ru Tsev Txhawb |
| S275joh | Ntau dua los yog sib npaug rau 275 | 410-560 | Txheej Txheem Tsev, conveying pipeline |
| S275J2H | Ntau dua los yog sib npaug rau 275 | 410-560 | Cov qauv dav dav hauv qhov chaw tsawg-qhov kub |
| S355J0H | Ntau dua los yog sib npaug rau 355 | 470-630 | Txuas hniav, nruab nrab load-cov kabmob qauv |
| S355J2H | Ntau dua los yog sib npaug rau 355 | 470-630 | Cov qauv hnyav hauv cov chaw tsawg-qhov kub |
| S355K2H | Ntau dua los yog sib npaug rau 355 | 470-630 | Cov ntawv thov nrog cov kev cuam tshuam loj cov kev xav tau |
Qhov sib txawv tseem ceeb:
- S235 muaj lub zog qis tshaj plaws thiab yog qhov haum rau lub teeb-load txheej. S355 muaj lub zog siab tshaj plaws thiab siv nyob rau hauv load-bearing scenarios.
- Lub tensile lub zog ntau ntawm s355k2h yog tib yam li s355j {3}} h \/ j2h, tab sis nws yuav tsum muaj dua rau tej yam nyuaj.
Qhov sib txawv ntawm cov tshuaj lom neeg
| Qib hlau | Carbon (c) Tsawg dua lossis sib npaug | Manganese (mn) tsawg dua lossis sib npaug | Carbon sib npaug (CEV) tsawg dua lossis sib npaug | Lwm yam kev xav tau |
| S235jrh | 0.17% | 1.40% | 0.30% | Silicon (SI) tsawg dua lossis sib npaug rau 0. 35% |
| S275joh \/ j2h | 0.18% | 1.50 | 0.32% | Phosphorus (p) tsawg dua lossis sib npaug rau {{{0}}}. 025%, sulfur (s) tsawg dua lossis sib npaug rau 0.020% |
| S355J0H/J2H | 0.20% | 1.60% | 0.40% | Chromium (CR) tsawg dua lossis sib npaug rau {{0}}}}. 30%, npib tsib sib npaug nrog 0.30% |
| S355K2H | 0.20% | 1.60% | 0.40% | Xav paub ntau ntxiv phosphorus thiab cov tub ntxhais cov ncauj lus (tsawg dua los yog sib npaug rau 0. 015%) |
Qhov sib txawv tseem ceeb:
- Cov ntsiab lus carbon: Cov ntsiab lus carbon ntawm s235 yog qhov qis tshaj (0}. 20%), • Qhia tias yuav tsis muaj Weldability.
- Carbon sib npaug (CEV): Lub tsev (CEV
- Txawv tswj hwm tswj: S355k2H muaj cov kev txwv tsis pub dhau ntawm kev siv hluav taws xob xws li phosphorus (p) thiab Sulfur (s) los txhim kho kev nruj.
Yuav tsum muaj rau tej yam kev cuam tshuam tawv
| Qib hlau | Kev Cuam Tshuam Sim Kub | Yam tsawg kawg nkaus cuam tshuam lub zog (j) | Muaj ib puag ncig |
| S235jrh | Qhov kub thiab txias (+20 degree) | Tsis yog yuav tsum tau ua | Tsis-qhov chaw kub-ib puag ncig |
| S275joh | Qhov kub thiab txias (+20 degree) | Ntau dua los yog sib npaug rau 27J | Ib puag ncig ib txwm |
| S275J2H | -20 degree | Ntau dua los yog sib npaug rau 27J | Tsawg-kub ib puag ncig (xws li cheeb tsam txias) |
| S355J0H | 0 degree | Ntau dua los yog sib npaug rau 27J | General Tsawg-Kub Ib puag ncig |
| S355J2H | -20 degree | Ntau dua los yog sib npaug rau 27J | Ib puag ncig txias |
| S355K2H | -20 degree | Ntau dua los yog sib npaug rau 40j | Kev cuam tshuam loj thauj khoom lossis ib puag ncig txias |
Qhov sib txawv tseem ceeb:
• Kev cuam tshuam kub: Cov suffix "j {{{0"} "}}}}" degree, thiab "K" qhia txog lub zog siab dua.
Lub zog hluav taws xob xav tau ntawm s355k2h (ntau dua los yog sib npaug rau 40j) yog siab dua li ntawm lwm qhov kev cuam tshuam lossis tsawg-kub ib puag ncig.
Kev tsim khoom thiab xa khoom plig
| Qib hlau | Kev Xa Tawm | Cov txheej txheem yuav tsum tau ua |
| S235jrh | Txias tsim muaj xeev | Tsis muaj kev kho cua sov |
| S275joh \/ j2h | Txias los yog li qub | Xaiv raws li yuav tsum tau ua |
| S355J0H/J2H | Kev Kho Mob Li Qub | Normalizing yog qhov tsim nyog los ua kom zoo qoob loo |
| S355K2H | Ib txwm los yog tswj dov thiab tswj txias | Cov tawv tawv yuav tsum tau lees tias |
Qhov sib txawv tseem ceeb:
- S355 Series Feem ntau yuav tsum tau kho qhov kev kho mob txhawm rau txhim kho cov kev sib txuam thiab kev nyuaj, thaum S235 \/ S275 tuaj yeem ua kom txias thiab xa ncaj qha.
- S355K2h tuaj yeem txais cov tshuaj tswj tswj thiab tswj txias (TMCP) ua kom nws ua tau zoo ntxiv.
Xaiv Kev Xaiv
1.Txoj teeb tsim (tus nqi muaj nuj nqis):
Xaiv s235jrh (lub teeb thauj) lossis S275Joh (nruab nrab load).
2. Qhov tsawg-kub ib puag ncig:
Xaiv S275J2H ({-20 degree) lossis s355j2h (hnyav txias thiab hnyav hnyav).
3. Kev cuam tshuam loj (xws li txuas hniav thiab khoom siv hluav taws xob):
• Muab feem tseem ceeb rau s355k2h (cuam tshuam rau lub zog loj dua los yog sib npaug rau 40j).
4. Cov kev xav tau siab welding)
Zam kev siv cov roj carbon ntau cov roj carbon qib (xws li S355), lossis xaiv cov kev coj ua kom zoo dua los txhim kho weldability.
Lub ntsiab
1.Qhov kev sib txawv ntawm cov tsis-alloy steel qib lus dag nyob rau hauv:
Lub zog nce ntxiv: S235 → S275 → S355.
2. Nce tsawg-qhov kub kub tawv: JRH (Chav ({} → degree) → degree) → kev cuam tshuam lub zog).
3. Txo Weldability: Ntau dua cov pa roj carbon ntau dua (CEV), tus Stricter lub preheating kom muaj rau vuam.
Thaum ua kev xaiv, kev ua lag luam tawm ua haujlwm-tawm raws li kev thauj khoom muaj zog, qhov ntsuas kub, cuam tshuam cov kev xav tau thiab ua cov thev naus laus zis. Yog tias tsim nyog, xa mus rau cov thawj cov ntawv ntawm EN 10219 tus qauv lossis sab laj tswv yim txhawb nqa ntawm cov nroj tsuag steel.
Cim npe nrov: en 10219 yeeb nkab steel, Suav teb, cov chaw muag khoom, chaw tsim khoom, Hoobkas, tus nqi
