Vim li cas thiaj siv Q235B los tsim Lub Teeb Rail?
Jan 20, 2026
Hlau railsyog ib qho tseem ceeb heev lub luag hauj lwm ntawm industrial. Los ntawm kev tsheb ciav hlau mus rau kev nqa thiab tuav, cov tsheb ciav hlau yog lub hauv paus rau cov khoom siv ua haujlwm. Nrog rau txoj kev loj hlob ntawm kev lag luam niaj hnub, kev lag luam hauv zej zog muaj ntau thiab ntau xav tau ntawm cov hom steel rail lem. Cov tsheb ciav hlau dav dav, cov tsheb hnyav hnyav, nqa cov tsheb ciav hlau, thiab cov tsheb tshwj xeeb - zoo li tus ntsia hlau rau cov xwm txheej tshwj xeeb.
Vim li cas thiaj siv Q235B los tsim Lub Teeb Rail?
CovQ235B steel hlaufeem ntau yog siv los tsimlub teeb railvim nws muab aKev sib xyaw ua ke ntawm lub zog, ductility, thiab weldability, uas aligns zoo nrog rau cov kev cai ntawm nroog tsheb thauj mus los, tramways, thiab lub teeb industrial rail systems. Lub teeb tsheb ciav hlau feem ntau tsis muaj qhov hnyav hnyav ntawm kev thauj khoom lossis siab - tsheb ciav hlau ceev, yog li cov hlau tsis xav tau cov pa roj carbon ntau lossis manganese cov ntsiab lus ntawm cov hlau hnyav hnyav xws li U71Mn lossis R350HT.
Cov laj thawj tseem ceeb rau kev siv Q235B rau kev tsheb ciav hlau muaj xws li:
- Zoo Mechanical Properties- Q235B muaj ibyield zog ntau dua los yog sib npaug rau 235 MPathiabtensile zog ntawm 375-500 MPa, muab cov qauv kev ncaj ncees txaus los txhawb lub teeb tsheb yam tsis muaj kev hnav lossis deformation ntau dhau. Nws cov hardness nruab nrab ua kom muaj qhov sib npaug ntawm lub zog thiab yooj yim ntawm machining lossis sib sau.
- Weldability zoo heev- Lub nroog thiab kev lag luam teeb pom kev zoo feem ntau xav taunquag sib koom vuam lossis kho. Q235B cov ntsiab lus qis qis tso cai rau kev vuam yooj yim yam tsis muaj kev tshwj xeeb preheating, txo kev tsim kho thiab kho cov nqi.
- Nqi Efficiency- Muab piv nrog cov qib siab dua - qib rail steels, Q235B yog kev lag luam ntau dua los tsim thiab yuav khoom, ua rau nws zoo tagnrho rau cov kab tsheb ciav hlau uas tus nqi - kev ua tau zoo yog qhov tseem ceeb.
- Tsim nyog hnav tsis kam rau lub teeb Loads- Thaum Q235B tsis nyuaj li U71Mn lossis R350HT, nws hnav tsis kam yog txaus raulow-ceev, low- thauj tramways lossis industrial light rail, tshwj xeeb tshaj yog thaum siv nrog cov fasteners kom zoo, sleepers, thiab rail pads.
- Kev Muaj Peev Xwm Thoob Ntiaj Teb thiab Kev Ua Raws Cai- Q235B ua raws liGB/T 700steel qauv, uas pab txhawb cov qauv tsim, kev ruaj ntseg zoo, thiab kev sib hloov rau lub teeb rail systems hauv Suav teb thiab thoob ntiaj teb kev lag luam.
Lwm Hom Rail Steel
| Qib | Standard / cheeb tsam | Kev sib xyaw ua ke (wt%) |
| R260 | TS EN 13674-1 (Tebchaws Europe) | C: 0.67–0.80, Mn: 0.90–1.20, Si: Tsawg dua lossis sib npaug rau 0.50 |
| R350 HT | TS EN 13674-1 (Tebchaws Europe) | C: 0.75–0.85, Mn: 0.80–1.20, Cr: 0.20–0.50 |
| Qib 260 | AREMA (North America) | C: ~0.77, Mn: ~1.0–1.2, Si: ~0.2 |
| Qib 350 | AREMA + Mill Specs (USA/Canada) | C: 0.78–0.83, Mn: 0.90–1.20, Cr: 0.2–0.6, + V/Nb (microalloyed) |
| BH Rail (Baitic) | JIS E 1101 (Nyiv), tau txais kev pom zoo hauv EU / Is Nrias teb | C: 0.65–0.80, Mn: 1.0–1.4, Cr/Mo/Ni (yeem, zeb- tshwj xeeb) |
| ua 71mn | GB / T 2585 (Tuam Tshoj) | C: 0.65–0.77, Mn: 1.10–1.40, Si: 0.15–0.35 |
| U75V | GB / T 2585 (Tuam Tshoj) | C: 0.67–0.77, Mn: 0.70–1.00, V: 0.04–0.12 |
Txij xyoo 2008,GNEE RAILtau muab steel rails ntawm cov qib sib txawv rau ntau tshaj 18 xyoo, steel rails los ntawm GNEE yog heev recommened nyob rau hauv Tuam Tshoj thiab txawv teb chaws.Wtih txiav ntug khoom, GNEE ua tau zoo steel rails uas tau raws li cov kev cai ntawm feem ntau lub teb chaws. Standard rail, lub taub hau hardened rail, hnyav rail, lub teeb rail, crane rail thiab lwm yam yog tag nrho cov muaj nyob ntawm no, raws li ib tug ntawm cov Tuam Tshoj lub ntsiab rail tsum, GNEE RAIL tau ua hauj lwm rau muab kev lag luam ntsuab railway khoom thoob plaws lub ntiaj teb no.
| Txuj | Sepc. | Khoom Qib Qib |
| UIC860 | UAS 54 | 700,900A,900B |
| UAS 60 | ||
| EN13674.1 | 5.00E+02 | R200, R350HT, R260Mn, R35LHT, R320Cr, R370CrHT |
| 5.40E+02 | ||
| 6.00E+02 | ||
| 6.00E+03 | ||
| IB 11-1985 | BS80A | 700,900A,900B |
| BS 90 A | ||
| BS100A | ||
| AREMA | 115 RA | SS, HH, LA, IH |
| 136 ROJ | ||
| UAS 60 | ua 71mn | |
| TIAB SA 85 | ua 71mn | |
| GB 2585-2007 | 50kg / m | ua 71mn |
| 60kg / m | U75V | |
| 75kg / m | ||
| TB/T2344-2012 | 50kg / m | U71Mn, U75V, U77MnCr |
| 60kg / m | ua 78crv | |
| 75kg / m | ||
| GB 11264-1989 | 8 kg/m | Q235 |
| 12kg / m | Q235 | |
| 15kg / m | 55Q, Q235 | |
| 18kg / m | 55Q, Q235 | |
| 22kg / m | 55Q, Q235 | |
| 24kg / m | 55Q, Q235 | |
| 30kg / m | 55Q, Q235 | |
| 38kg / m | 50mn, ua 71 | |
| 43kg / m | 50mn, ua 71 | |
| GB Crane Rail | qw 70 | ua 71mn |
| qw 80 | ua 71mn | |
| QU 100 | ua 71mn | |
| qw 120 | ua 71mn |
