All modern rails now are made by hot rolled steel of specific cross-section (profile) which approximates to I-beam but is asymmetric about a horizontal axis---flat bottomed, so that can rest directly on the tie sleepers and bullhead rails well. A rail is composed by three parts of rail Head, Web and Foot, and overall cross-sectional dimensions are always made of rail height(A), Foot width (B) and Head width(C). Together with the Web thickness(t), the 4 sizes are overall dimensions for rail type classifications.
Most railway tracks nowadays are made from hot-rolled steel with a grade of 1084 or higher. This type of medium carbon steel is produced by rolling rail steel with natural iron ore.
The hardness of hot-rolled railway track metal
| Material | Tensile Strength / Mpa | Hardness / HB |
|---|---|---|
| U75V | ≥980 | 280~320 |
| U78CrV | ≥1080 | 310~360 |
| U76CrRE | ≥1080 | 310~360 |
| U77MnCr | ≥980 | 290~330 |
The hardness of heat-treatment railway track metal
| Material | Tensile Strength / Mpa | Hardness / HB |
|---|---|---|
| U75V | ≥1180 | 320~380 |
| U78CrV | ≥1280 | 370~420 |
As a professional rail fastener supplier, GNEE RAIL can provide different standard steel rail such as American, BS, UIC, DIN, JIS, Australian and South Africa which used in railway lines, cranes and coal mining.
| Classification | Height(mm) | Head (mm) | Bottom (mm) | Thick(mm) | Weight (kg/m) | |
| Light 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 | |
| Crance Rail | QU 70 | 120 | 70 | 120 | 28 | 52.8 |
| QU 80 | 130 | 80 | 130 | 32 | 63.69 | |
| QU 100 | 150 | 100 | 150 | 38 | 88.96 | |
| QU 120 | 170 | 120 | 170 | 44 | 118.1 | |
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