GB 60kg Heavy Rail
In the field of rail infrastructure, rail heavy duty products play a critical role in supporting large-scale transportation and industrial operations. As a core component of these key systems, GB Steel Rail stands out for its strict adherence to GB standards.
GB Standard 60KG Heavy Rail
The 60kg steel rail, widely used on Chinese 350 km/h state express railway lines, conforms to Chinese national standard GB2585-2007 and is manufactured under the TB/T 2344 technical specification. With a unit weight of 60.64 kg/m, this heavy-haul railway track material is made of high-carbon manganese steel (such as 50Mn or U71Mn), offering both high strength and excellent anti-fatigue properties.
| Specification | Head Width (b₁) (mm) | Base Width (b₂) (mm) | Rail Height (h) (mm) | Web Thickness (w) (mm) | Cross-sectional Area (mm²) | Unit Weight (kg/m) |
|---|---|---|---|---|---|---|
| 43 | 70 | 114 | 140 | 14.5 | 5700 | 44.75 |
| 50 | 70 | 132 | 152 | 15.5 | 6580 | 51.65 |
| 60 | 70.8 | 150 | 176 | 16.5 | 7745 | 60.80 |
| 75 | 72 | 150 | 192 | 20 | 9504 | 74.60 |
| 60N | 70.8 | 150 | 176 | 16.5 | 7705 | 60.49 |
| 75N | 72 | 150 | 192 | 20 | 9456 | 74.23 |
If you have special requirements for length or higher strength materials, please contact us for special custom production.
It is specially designed to withstand dynamic load impacts from locomotives and high-frequency rolling, making it suitable for national railway trunk lines, subways, and industrial transportation lines. The upgraded version, designated 60N, features a head width reduced by 2.2 mm. Its profile more closely matches the train wheel, effectively reducing running wear.
GNEE RAIL's 60KG heavy rail stands out as a top choice for heavy-haul and high-speed railways. Manufactured to GB/T 2585 standards, it features premium steel grades like U71Mn and 50Mn, delivering exceptional strength, wear resistance, and fatigue endurance to withstand extreme loads and long-term operation.With precise dimensional accuracy and stable mechanical properties, our 60KG rail ensures seamless track alignment and reliable performance.
Chemical composition and mechanical properties of 60KG heavy rail
U71Mn and 50Mn are the primary Chinese standard (GB2585-2007) materials used to manufacture 60KG/m heavy rails, offering high strength, wear resistance, and anti-fatigue properties. These materials are designed for heavy-haul railways, subways, and, in the case of U71Mn, often used for industrial crane rails.
- U71Mn: Known for excellent wear resistance and toughness, ideal for heavy-load, high-frequency, and industrial crane applications.
- 50Mn: Provides high-strength performance suitable for railway infrastructure and industrial mining, offering cost-effective durability.
Core Advantages of Using 60kg Heavy Rail in High-Speed Railways
60kg/m heavy rail is the standard for high-speed railways (350km/h+) due to its superior structural strength, high stability, and exceptional fatigue resistance. It optimizes load distribution to reduce maintenance, provides greater safety against high-frequency vibration, and offers excellent compatibility with modern international infrastructure standards.
1. Exceptional Bending Stiffness (Stability)
With high-speed trains operating at 300-350km/h, the vertical loads and lateral forces generated are substantial. The 60kg heavy rail features a larger cross-sectional moment of inertia, which effectively minimizes deflection under wheel-rail interaction. This ensures excellent track alignment consistency, delivering superior riding stability for high-speed trains.
2. High-Cycle Load Resistance & Fatigue Mitigation
High-speed rail networks operate with high density and consistent axle loads, subjecting rails to long-term dynamic cyclic stresses. By increasing the cross-sectional dimensions, the 60kg rail reduces stress levels significantly, thereby extending its fatigue life. This substantially mitigates the risk of crack initiation and fracture induced by metal fatigue.
3. Compatibility with Continuously Welded Rail (CWR) Technology
High-speed railways exclusively adopt ultra-long continuously welded rail (CRTS track slab system). The robust stability of the 60kg rail enables it to effectively resist massive longitudinal thermal forces induced by temperature variations within the constrained rail temperature range, preventing track buckling or expansion.
4. Enhanced Wheel-Rail Contact Performance
The rail head profile of 60kg rails (e.g., the 60N profile) undergoes precision grinding. This facilitates optimized conformal contact with EMU (Electric Multiple Unit) wheels, reducing contact stresses, minimizing wear and noise emissions, while improving the smoothness of vehicle negotiation through curved sections.
What are the differences between GB 60KG Rail and UIC60 Rail?
The GB 60kg rail (China Standard) and the UIC 60 rail (International Union of Railways standard) are very similar in appearance and application, and they are often confused because they share the same nominal weight category. However, there are subtle but important technical differences in their geometric profiles, mechanical properties, and specific manufacturing standards.
While both rails are designed to weigh approximately 60 kg per meter, their cross-sectional shapes (the "profile") differ in terms of head radius, web thickness, and transition curves.
- UIC 60: The profile is defined by the international standard (UIC 860). It features a specific head radius and slope designed to accommodate a wide range of international wheel profiles used across Europe and globally.
| Type of Rail | Standard | Dimensions (mm) | Section S | Mass m | ||||
| H | B | C | D | E | cm² | kg/m | ||
| 60E1 (UIC60) | EN 13674 - 1 | 172,00 | 150,00 | 72,00 | 51,00 | 16,50 | 76,70 | 60,21 |
- GB 60kg (China Standard): While China adopted the UIC 60 profile as a base for its national standard (GB/T 2585), it has undergone specific modifications, particularly in the "60N" profile.
- The 60N Profile: Modern Chinese high-speed railways use the 60N profile, which is an asymmetrical rail head design. The head is slightly tilted to better match the conical shape of high-speed train wheels. This optimization is specific to Chinese high-speed rail standards to ensure better "conformal contact" between the wheel and rail, reducing wear and improving ride stability at speeds of 300–350 km/h.
Related railway accessories provided by GNEE RAIL
GNEE RAIL also manufactures Rail E Clip and Rail Clamp, High Tensile Bolt with Nut and Washer, Rail Base(Tie) Plate, Rail Fish Plate, Rail Shoulder, Rail Screw and Spike, Fish Bolt with Nut and Washer, Rail Dowel, Rubber and EVA Pad Other spare parts.
FAQ About GB 60kg Heavy Rails
Q: What standard are GB 60kg rails manufactured to?
A: GB 60kg rails are manufactured to GB/T 2585 "Hot-rolled steel rails for railway" .
Q: What lengths are available for GB 60kg rails?
A: Standard lengths: 12.5m and 25m. Custom lengths up to 100m are available for long welded rail (LWR) projects .
Q: Can GB 60kg rail be used with UIC60 fastening systems?
A: GB 60kg and UIC60 are very close in dimensions (height 176mm vs 172mm, base width both 150mm). With appropriate fastening system adjustment, they are often considered functionally equivalent. Verify compatibility before substitution .
Q: What is the closest international equivalent to GB 60kg rail?
A: UIC60 (60.21kg/m) is the closest international equivalent. AREMA 115RE (56.9kg/m) is lighter and shorter .
Q: Do you provide matching fish plates and fasteners?
A: Yes. We supply complete track systems including matching fish plates, rail clips, bolts, rubber pads, and insulators .
Q: What documentation do you provide with shipments?
A: We provide mill test certificates showing chemical composition and mechanical properties, plus compliance certification to GB/T 2585 .
GNEE Rail is dedicated to offering global clients rail products that comply with GB standards. Our GB-standard rail portfolio includes multiple specifications such as QU70, QU80, QU100 crane rails and light rails of 8kg/m, 18kg/m, 24kg/m, which are suitable for various industrial scenarios.
GNEE places great emphasis on product quality and customer service. We ensure the reliability of each batch of goods through rigorous quality inspection procedures, while providing flexible trading methods to meet the procurement needs of different clients. Whether you require regular stock products or rails with special specifications, GNEE is capable of delivering professional solutions. Please feel free to contact GNEE for further assistance.
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