Cov txheej txheem steel rail yog dab tsi?
Jan 21, 2026
Hlau rail(tseem hu ua railroad rails, railway rails, los yog crane rails) yog cov khoom tseem ceeb ntawm cov kab ke, pab coj lub log thiab faib cov khoom hnyav nrog qhov tseeb. Tsim nyob rau hauv qhov optimized I-beam cross-section uas suav nrog lub taub hau tsheb ciav hlau (sib cuag saum npoo), lub vev xaib (kev txhawb nqa ntsug), thiab puag (stabilizing flange), cov ntsia hlau no xa cov kev khoov zoo tshaj plaws thiab kev ruaj ntseg zoo.
Cov txheej txheem steel rail yog dab tsi?
Cov qauv kev tsheb nqaj hlau yog cov kev qhia tshwj xeeb uas txhais cov khoom siv, qhov ntev, geometry, thiab kev ua tau zoo (lub zog, hardness, hnav tsis kam) ntawm cov ntsia hlau, ua kom muaj kev nyab xeeb thiab kev sib cuam tshuam rau kev tsheb ciav hlau, nrog rau cov qauv hauv cheeb tsam loj xws li AREMA (US), EN / UIC (Tebchaws Europe), thiab JIS (Nyiv), qhia txog cov khoom xws li huab hwm coj ib ' meter ' (piv txwv li, 6 qhov sib txawv ntawm kev thauj khoom ib kg.
Qhov tseem ceeb ntawm Rail Standards:
- Cov khoom sib xyaw: txhais cov hlau alloy (xws li, carbon, manganese) rau cov khoom uas xav tau xws li hardness thiab qaug zog.
- Dimensions & Geometry: Qhia tus ntoo khaub lig-section (lub taub hau, web, ko taw) thiab profile (piv txwv li, 54E1, 60kg / m), ua kom muaj kev sib raug zoo nrog cov log thiab cov lem.
- Mechanical Properties: Teem kom muaj zog tensile, cuam tshuam toughness, hardness, thiab hnav tsis kam.
- Qib Kev Ua Haujlwm: Cov qib sib txawv (piv txwv li, R260, R350HT hauv EN cov qauv) yog tsim los rau qhov sib txawv ntawm cov peev txheej thiab qhov nrawm.
Common Rail Steel Qib Ntiaj Teb:
| Qib | Standard / cheeb tsam | Kev sib xyaw ua ke (wt%) | Ntsiab nta & Daim ntawv thov |
| 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 | Base-qib tsheb ciav hlau; txias- dov; dav siv nyob rau nruab nrab - cov kab tsheb. Zoo weldability thiab nqi efficiency. |
| R350 HT | TS EN 13674-1 (Tebchaws Europe) | C: 0.75–0.85, Mn: 0.80–1.20, Cr: 0.20–0.50 | Kub-kho (online/offline); UTS Ntau dua lossis sib npaug rau 1100 MPa; 30-50% lub neej ntev dua R260. Txheem rau siab-ceev (TGV, ICE) thiab hnyav- cov kab tsheb thauj mus los. |
| Qib 260 | AREMA (North America) | C: ~0.77, Mn: ~1.0–1.2, Si: ~0.2 | Sib npaug rau R260; siv nrog rail seem xws li 115RE, 136RE. Feem ntau ntawm Class I freight networks. |
| 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) | TMCP or heat-treated; UTS ~1180–1280 MPa. For demanding curves, heavy axle loads (>33 tuj), thiab siab -tonnage txoj kev. |
| BH Rail (Bainitic) | JIS E 1101 (Nyiv), tau txais hauv EU / Is Nrias teb | C: 0.65–0.80, Mn: 1.0–1.4, Cr/Mo/Ni (yeem, zeb- tshwj xeeb) | Bainitic microstructure; siab zog (UTS ~ 1250-1350 MPa) + superior puas toughness. Siv rau ntawm Shinkansen nkhaus thiab siab - hnav ntu. |
| ua 71mn | GB / T 2585 (Tuam Tshoj) | C: 0.65–0.77, Mn: 1.10–1.40, Si: 0.15–0.35 | Ua haujlwm-hardening carbon-manganese rail; Txheem rau 50kg / m, 60kg / m rails ntawm Suav mainlines. Piv rau R260 / R350 hauv kev ua haujlwm. |
| U75V | GB / T 2585 (Tuam Tshoj) | C: 0.67–0.77, Mn: 0.70–1.00, V: 0.04–0.12 | Vanadium{0}}microalloyed; siab zog & qaug zog tsis kam tshaj U71Mn. Rau siab -ceev (piv txwv li, Beijing-Shanghai HSR) thiab hnyav -cov kab. |
Main Hom Qauv & Daim Ntawv Thov:
- GB (Tuam Tshoj): Qhia rails los ntawm qhov hnyav ib 'meter' (piv txwv li, 60kg / m, 75kg / m) rau ntau hom kab.
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| Lub Teeb Rail | 8 KG / M | 65 | 25 | 54 | 7 | 8.42 |
| 9 KG / M | 63.5 | 32.1 | 63.5 | 5.9 | 8.94 | |
| 12 KG / M | 69.85 | 38.1 | 69.85 | 7.54 | 12.2 | |
| 15 KG / M | 79.37 | 42.86 | 79.37 | 8.33 | 15.2 | |
| 18 KG / M | 80 | 40 | 80 | 10 | 18.06 | |
| 22 KG / M | 93.66 | 50.8 | 93.66 | 10.72 | 22.3 | |
| 24 KG / M | 107 | 51 | 90 | 10.9 | 24.46 | |
| 30 KG / M | 107.95 | 60.33 | 107.95 | 12.3 | 30.1 | |
| Heavy Rail | 38 KG / M | 134 | 68 | 114 | 13 | 38.733 |
| 43 KG / M | 140 | 70 | 114 | 14.5 | 44.653 | |
| 45 KG / M | 145 | 67 | 126 | 14.5 | 45.546 | |
| 50 KG / M | 152 | 70 | 132 | 15.5 | 51.514 | |
| 60 KG / M | 176 | 73 | 150 | 16.5 | 60.64 | |
| Crane Rail | qw 70 | 120 | 70 | 120 | 28 | 52.8 |
| qw 80 | 130 | 80 | 130 | 32 | 63.69 | |
| QU 100 | 150 | 100 | 150 | 38 | 88.96 | |
| qw 120 | 170 | 120 | 170 | 44 | 118.1 | |
- AREMA (USA):Feem ntau rau North American railways, nrog rau cov npe xws li AREMA 136.
| ASTM txuj, AREMA txuj | ||||||
|---|---|---|---|---|---|---|
| Loj | Qhov Loj (mm) | Qhov hnyav (kg / m) |
Ntev (m) | |||
| Lub taub hau | Qhov siab | Ko taw | Thickness | |||
| UAS 25 | 38.1 | 69.85 | 69.85 | 7.54 | 12.4 | 6-12 |
| UAS 30 | 42.86 | 79.38 | 79.38 | 8.33 | 14.88 | |
| UAS 40 | 47.62 | 88.9 | 88.9 | 9.92 | 19.84 | |
| UAS 60 | 60.32 | 107.95 | 107.95 | 12.3 | 29.76 | |
| TIAB SA 75 | 62.71 | 122.24 | 122.24 | 13.49 | 37.2 | 12-25 |
| TIAB SA 85 | 65.09 | 131.76 | 131.76 | 14.29 | 42.17 | |
| TIAB SA 90 | 69.09 | 130.18 | 142.88 | 14.29 | 44.65 | |
| TIAB SA 115 | 69.06 | 139.7 | 168.28 | 15.88 | 56.9 | |
| TIAB SA 136 | 74.61 | 152.4 | 185.74 | 17.46 | 67.41 | |
| TIAB SA 175 | 109.86 | 152.4 | 152.4 | 38.1 | 86.8 | |
- EN (Tebchaws Europe):Cov qauv zoo li EN 13674-4 rau European rails, siv qhov ntau thiab tsawg (xws li, 60E1).
| Hom ntawm | Txuj | Dimensions mm | Qib Steel | Mas M | |||
| Rail | A | F | C | t | kg/m | ||
| 39E1 (BS80A) | TS EN 13674-4 | 133.4 | 117.5 | 63.5 | 13.1 | R200/R260/R260Mn/R300HT | 39.77 |
| 45E1 (BS90A) | TS EN 13674-4 | 142.88 | 127 | 66.67 | 13.89 | R200/R260/R260Mn/R300HT | 45.11 |
| 45E3 (RN45) | TS EN 13674-4 | 142 | 130 | 66 | 15 | R200/R260/R260Mn/R300HT | 44.79 |
| 46E2(U33) | TS EN 13674-4 | 145 | 134 | 62 | 15 | R200/R260/R260Mn/R300HT | 46.27 |
| 49E1(S49) | TS EN 13674-4 | 149 | 125 | 67 | 14 | R200/R260/R260Mn/R300HT | 49.39 |
| 49E2 | TS EN 13674-4 | 148 | 125 | 67 | 14 | R200/R260/R260Mn/R300HT | 49.1 |
| 49E5 | TS EN 13674-4 | 149 | 125 | 67 | 14 | R200/R260/R260Mn/R300HT | 49.13 |
| 50E1 | TS EN 13674-4 | 153 | 134 | 65 | 15.5 | R200/R260/R260Mn/R300HT | 50.37 |
| 50E2(50EB-T) | TS EN 13674-4 | 151 | 140 | 72 | 15 | R200/R260/R260Mn/R300HT | 49.97 |
| 50E4 | TS EN 13674-4 | 152 | 125 | 70 | 15 | R200/R260/R260Mn/R300HT | 50.46 |
| 50E5 | TS EN 13674-4 | 148 | 135 | 67 | 14 | R200/R260/R260Mn/R300HT | 49.9 |
| 50E6(U50) | TS EN 13674-4 | 153 | 140 | 65 | 15.5 | R200/R260/R260Mn/R300HT | 50.9 |
| 54E1 (UA 54) | TS EN 13674-4 | 159 | 140 | 70 | 16 | R200/R260/R260Mn/R300HT | 54.77 |
| 54E2 (UA 54E) | TS EN 13674-4 | 161 | 125 | 67 | 16 | R200/R260/R260Mn/R300HT | 53.82 |
| 54 E3 (DINS54) | TS EN 13674-4 | 154 | 125 | 67 | 16 | R200/R260/R260Mn/R300HT | 54.57 |
| 54E4 | TS EN 13674-4 | 154 | 125 | 67 | 16 | R200/R260/R260Mn/R300HT | 54.31 |
| 54E5 (54E1AHH) | TS EN 13674-4 | 159 | 140 | 70.2 | 16 | R200/R260/R260Mn/R300HT | 54.42 |
| 55E1 | TS EN 13674-4 | 155 | 134 | 62 | 19 | R200/R260/R260Mn/R300HT | 56.03 |
| 56E1 (BS113Lb) | TS EN 13674-4 | 158.75 | 140 | 69.85 | 20 | R200/R260/R260Mn/R300HT | 56.3 |
| 60E1 (UA 60) | TS EN 13674-4 | 172 | 150 | 72 | 16.5 | R200/R260/R260Mn/R300HT | 60.21 |
| 60E2 | TS EN 13674-4 | 172 | 150 | 72 | 16.5 | R200/R260/R260Mn/R300HT | 60.03 |
- JIS (Nyiv):Cov qauv xws li JIS E 1101 rau hnyav-cov kab thiab JIS E1103 rau cov ntawv siv sib zog xws li mines.
| Txheem: JIS E 1103/1101 | ||||||
|---|---|---|---|---|---|---|
| Loj | Qhov Loj (mm) | Qhov hnyav (kg / m) |
Ntev (m) | |||
| Lub taub hau | Qhov siab | Hauv qab | Thickness | |||
| JIS 15 KG | 42.86 | 79.37 | 79.37 | 8.33 | 15.2 | 9-10 |
| JIS 22 KG | 50.8 | 93.66 | 93.66 | 10.72 | 22.3 | 9-10 |
| JIS 30 A | 60.33 | 107.95 | 107.95 | 12.3 | 30.1 | 9-10 |
| SIB 37A | 62.71 | 122.24 | 122.24 | 13.49 | 37.2 | 10-25 |
| JIS 50 N | 65 | 153 | 127 | 15 | 50.4 | 10-25 |
| SIB 73 | 100 | 135 | 140 | 32 | 73.3 | 10-12 |
| CR 100 | 120 | 150 | 155 | 39 | 100.2 | 10-12 |
Cov qauv kev tsheb ciav hlau hlau yog qhov tseem ceeb rau kev lav qhov ruaj khov, kev nyab xeeb, thiab kev sib haum xeeb hauv kev tsheb ciav hlau thoob ntiaj teb.GNEE RAILmuaj ntau yam kev daws teeb meem kev tsheb nqaj hlau, suav nrog siab - lub zog steel rails, rail clips, fasteners, thiab rail pads, tag nrho ua raws li cov qauv thoob ntiaj teb xws li GB, UIC, EN, DIN, AREMA, BS, thiab JIS. Rau cov phiaj xwm kev tsheb ciav hlau uas xav tau cov kev tsheb ciav hlau tshwj xeeb lossis kev txhawb nqa engineering meej, GNEE RAIL muab cov kev pabcuam tsim nyog, kev taw qhia kev teeb tsa, thiab tom qab- kev pab muag khoom kom ntseeg tau ntev - haujlwm.
