The steel rail is the main component of the train tracks. It directly bears the repeated impact loads of the wheels of the rolling stock. It is also the basis for ensuring the safe, stable, and fast transportation of the train.
How many types of steel railing are there?
A steel rail is a rolled steel profile installed on sleepers (ties) to form a continuous running surface that guides train or crane wheels and transfers vertical, lateral, and longitudinal loads into the track structure. Depending on application, cross-section geometry, weight per meter, and applicable standards, steel rails are not limited to a single form. In modern railway and industrial systems, steel rails are generally classified into three major types, while each major type further includes multiple profiles under different international standards such as GB, UIC, EN, AREMA, JIS, BS, and DIN.
From an engineering perspective, steel rails are primarily divided into light rail, heavy rail, and crane rail, according to wheel load and operating conditions. Light rails are used where axle loads and speeds are relatively low, heavy rails are used for mainline and high-capacity freight lines, and crane rails are specially designed to resist concentrated wheel loads and strong lateral forces from overhead cranes.
| Rail Category | Typical Weight Range (kg/m) | Typical Profiles | Main Applications |
|---|---|---|---|
| Light Rail | 8–30 | GB 8kg–30kg, JIS 15kg–30kg, ASCE 25–60 | Mining, factories, workshops, temporary tracks |
| Heavy Rail | 38–75+ | UIC54, UIC60, GB 43kg–75kg, 115RE, 136RE | Mainline railway, metro, heavy freight |
| Crane Rail | 52–118 | QU70–QU120, DIN A55–A120 | Ports, steel mills, gantry and bridge cranes |
How Do Different International Standards Create More Rail Types?
Within each application category, rail profiles are further differentiated by national and international standards, which define head width, web thickness, foot width, and tolerances. Even when weight per meter is similar, cross-sectional geometry may differ, which affects fastening compatibility and wear behavior.
| Standard System | Typical Rail Types | Regions of Use |
|---|---|---|
| GB (China) | 22kg, 30kg, 50kg, 60kg, QU80, QU100 | Asia, Africa, Middle East, mining and industrial exports |
| UIC (International Union of Railways) | UIC54, UIC60 | Europe, international mainline railways |
| EN 13674 | 49E1, 54E1, 60E1 | High-speed and freight lines in Europe |
| AREMA / ASTM | 115RE, 136RE, ASCE60 | North America, heavy haul |
| JIS | JIS 22kg, 37A, 50N | Japan and overseas metro projects |
| DIN 536 | A55–A120 | Crane and port rail systems |
As a result, even within the same "heavy rail" category, there are multiple structural rail types optimized for different fastening systems, wheel profiles, and maintenance strategies. For international procurement, profile matching is often more critical than weight alone, which is why GNEE RAIL supports drawing-based verification and cross-standard equivalence checks before shipment.
Are There Structural Differences Between Rail Types Besides Weight?
Yes, rail types also differ significantly in head geometry, web thickness, and foot width, which directly affect fatigue resistance, lateral stability, and fastening strength. Crane rails, for example, typically have a wider and thicker head to withstand high contact stress from crane wheels, while heavy railway rails focus on long-term rolling contact fatigue resistance and stability at high speed.
| Feature | Light Rail | Heavy Rail | Crane Rail |
|---|---|---|---|
| Head Width | Narrow to medium | Medium | Very wide |
| Web Thickness | Thin | Medium | Thick |
| Foot Width | Narrow | Wide | Very wide |
| Lateral Load Capacity | Low | Medium | Very high |
As a professional rail fastener supplier, GNEE RAIL can provide different standard steel rail such as GB,American, BS, UIC, DIN, JIS, Australian and South Africa which used in railway lines, cranes and coal mining.