A steel rail is an engineered steel product whose metallurgical structure, grain refinement, and heat-treatment state directly determine its resistance to rolling contact fatigue and surface shelling. High-performance rails require controlled production processes to achieve uniform hardness gradients and minimize internal defects.
GNEE RAIL supplies rails in multiple material grades across all standards and supports project-specific performance requirements with metallurgical documentation, mill traceability, third-party inspection coordination, and technical consultation on service life optimization.
What is the material of rail?
Rails are manufactured from high-carbon, hot-rolled steel, designed for high strength, hardness, and wear resistance to withstand heavy, repetitive loads. Common grades include pearlitic steels (R260) and heat-treated, premium grades (R350HT). These steels are often alloyed with elements like manganese, silicon, and sometimes chromium or vanadium to improve toughness.
Key Details Regarding Rail Material:
- Composition: The material is primarily carbon-manganese steel, which provides the necessary durability and hardness.
- Manufacturing: Rails are hot-rolled and sometimes heat-treated for superior strength, with yield strengths often exceeding 60,000 PSI.
- Characteristics: The material must resist abrasion, fracture, and high-temperature deformation while maintaining structural integrity.
- Standards: Rails are produced according to specific international standards, such as EN 13674, which classifies various grades based on their mechanical properties.
Common Rail Steel Grades Worldwide:
| Grade | Standard / Region | Typical Composition (wt%) | Key Features & Applications |
| R260 | EN 13674-1 (Europe) | C: 0.67–0.80, Mn: 0.90–1.20, Si: ≤0.50 | Base-grade rail; cold-rolled; widely used on medium-traffic lines. Good weldability and cost efficiency. |
| R350HT | EN 13674-1 (Europe) | C: 0.75–0.85, Mn: 0.80–1.20, Cr: 0.20–0.50 | Heat-treated (online/offline); UTS ≥1100 MPa; 30–50% longer life than R260. Standard for high-speed (TGV, ICE) and heavy-haul lines. |
| Grade 260 | AREMA (North America) | C: ~0.77, Mn: ~1.0–1.2, Si: ~0.2 | Equivalent to R260; used with rail sections like 115RE, 136RE. Common on Class I freight networks. |
| Grade 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 ton), and high-tonnage corridors. |
| BH Rail (Bainitic) | JIS E 1101 (Japan), adopted in EU/India | C: 0.65–0.80, Mn: 1.0–1.4, Cr/Mo/Ni (optional, mill-specific) | Bainitic microstructure; high strength (UTS ~1250–1350 MPa) + superior fracture toughness. Used on Shinkansen curves and high-wear segments. |
| U71Mn | GB/T 2585 (China) | C: 0.65–0.77, Mn: 1.10–1.40, Si: 0.15–0.35 | Work-hardening carbon-manganese rail; standard for 50kg/m, 60kg/m rails on Chinese mainlines. Comparable to R260/R350 in performance. |
| U75V | GB/T 2585 (China) | C: 0.67–0.77, Mn: 0.70–1.00, V: 0.04–0.12 | Vanadium-microalloyed; higher strength & fatigue resistance than U71Mn. For high-speed (e.g., Beijing–Shanghai HSR) and heavy-haul lines. |
Why are rails made of steel?
Rails are made of steel because it offers the ideal combination of high strength, durability, and flexibility needed to withstand massive loads, high-speed impact, and extreme temperature variations. Steel rails provide a, low-friction, long-lasting surface that resists wear, ensuring safety and reducing maintenance costs for heavy rail traffic.
Key Reasons for Using Steel:
- Strength and Durability: Steel is exceptionally strong, capable of supporting the immense weight of, and stress from, heavy freight and passenger trains without fracturing.
- Wear Resistance: Rail steel is specifically formulated (often with manganese and silicon) to be highly resistant to abrasion and fatigue, extending the life of the track.
- Flexibility: While strong, steel is flexible enough to handle the dynamic loads of moving trains without snapping, unlike more brittle materials.
- Low Friction: Steel-on-steel contact minimizes resistance, allowing trains to move efficiently and reducing the energy required for transportation.
- Temperature Stability: Steel rails can withstand, with proper installation, extreme temperature fluctuations, preventing deformation.
- Cost-Effectiveness: Due to their longevity and minimal maintenance requirements, steel rails are the most economical long-term choice.
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.
| Standard | Sepc. | Material Typical Grade |
| UIC860 | UIC54 | 700,900A,900B |
| UIC60 | ||
| EN13674.1 | 5.00E+02 | R200,R350HT,R260Mn,R35LHT,R320Cr,R370CrHT |
| 5.40E+02 | ||
| 6.00E+02 | ||
| 6.00E+03 | ||
| BS-11-1985 | BS80A | 700,900A,900B |
| BS90A | ||
| BS100A | ||
| AREMA | 115RE | SS,HH,LA,IH |
| 136RE | ||
| ASCE60 | U71Mn | |
| ASCE85 | U71Mn | |
| GB 2585-2007 | 50kg/m | U71Mn |
| 60kg/m | U75V | |
| 75kg/m | ||
| TB/T2344-2012 | 50kg/m | U71Mn,U75V,U77MnCr |
| 60kg/m | U78CrV | |
| 75kg/m | ||
| GB 11264-1989 | 8kg/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, U71Mn | |
| 43kg/m | 50Mn, U71Mn | |
| GB Crane rails | QU70 | U71Mn |
| QU80 | U71Mn | |
| QU100 | U71Mn | |
| QU120 | U71Mn |
Since 2008, GNEE RAIL has been supplying steel rails of different grades for more than 18 years, steel rails from GNEE is highly recommened in China and abroad.Wtih cutting edge equipment, GNEE produces high quality steel rails that meet with requirements of most countries. Standard rail, head hardened rail, heavy rail,light rail,crane rail and other types are all available here, as one of the China main rail supplier, GNEE RAIL has been working on supplying economical green railway products all over the world.