75KG Heavy Duty Rail
Steel rail, also called rail track, steel track, is the main component of railway track. Its function is to guide the wheels of the locomotive, bear the great pressure of the wheel, and keep the stability of railway transportation. The rail must provide continuous, smooth and minimum rolling surfaces for the wheels.
GB 75KG Rail for Heavy Freight Rail
75KG heavy duty rail (75kg/m) is the heaviest and strongest profile in the Chinese GB standard railway rail series, specifically engineered as a 75kg Rail for Heavy Freight Rail for the most demanding heavy-haul applications in the world.
Specifications of the 75KG Heavy Rail:
| Height: 192 mm | Base Width: 150 mm |
| Head Width: 72 mm | Web Thickness: 20 mm |
| Length: 6m-12.5m | Material: U71Mn |
| Weight: 74.414 kg/m | Standard: GB2585-2007 |
If you have special requirements for length or higher strength materials, please contact GNEE for special custom production.
GNEE RAIL's 75kg heavy rail is engineered to the highest standards of GB/T 2585-2017, delivering unparalleled performance for ultra-heavy haulage, high-speed freight corridors, and extreme industrial applications. With a robust cross-section (192mm height, 150mm base width) and theoretical weight of 74.41kg/m, making it ideal for mining, port logistics, and national mainline railways.
75KG Rail Material Grade
Manufactured from premium steel grades including U71Mn (≥880MPa), U75V (≥980MPa), and U78CrV (PG4) (≥1080MPa) with head hardening options reaching 370-420HB hardness, 75KG rails deliver exceptional resistance to wear, contact fatigue, and plastic deformation under extreme conditions . These rails have been proven on the Datong-Qinhuangdao (Da-Qin) Railway, the world's busiest heavy-haul line .
| Heavy Rail Steel | U77MnCr | 0.72-0.82 | 0.10-0.50 | 0.80-1.10 | - | 0.025 | 0.025 | TB/T2344-2020 |
| U71Mn | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | - | 0.03 | 0.03 | GB/T2585-2021 | |
| U75V | 0.71-0.80 | 0.50-0.80 | 0.70-1.05 | 0.04-0.12 | 0.03 | 0.03 | - | |
| 900A | 0.60-0.80 | 0.08-0.60 | 0.80-1.30 | - | 0.04 | 0.04 | UIC860-O | |
| R260 | 0.60-0.80 | 0.13-0.60 | 0.65-1.25 | - | 0.03 | 0.03 | EN13671-1:2011+A1:2017 |
GB Heavy rail vs GB light rail
GB Heavy Rail (typically >30 kg/m, e.g., 50kg/m, 60kg/m) is designed for high-speed, heavy-load, long-term national railway lines and main transport. GB Light Rail (5–30 kg/m) is used for industrial, mining, forest, or temporary, lower-volume, and slower transportation. Heavy rails offer higher strength, durability, and better wear resistance.
Key Differences:
- Weight & Dimension: Heavy rails are heavier and have larger section heights and base widths than light rails.
- Application: Heavy rails are for main/heavy-haul lines, while light rails are for temporary or light-duty industrial use.
- Cost: Light rails are 30%–60% cheaper to procure and 25%–40% cheaper to install than heavy rails.
GNEE RAIL can provide the following types of rails:
FAQ About 75KG Heavy Duty Rails
Q: What standard are 75kg rails manufactured to?
A: 75kg rails are manufactured to GB/T 2585 and TB/T 2344, the Chinese national standards for railway rails .
Q: What lengths are available for 75kg rails?
A: Standard lengths: 12.5m and 25m. Custom lengths up to 100m are available for long welded rail (LWR) projects .
Q: What is the closest international equivalent to 75kg rail?
A: AREMA 155RE (76.9kg/m) is the closest in weight and application profile. Both are used for ultra-heavy-haul applications .
Q: Has 75kg rail been proven in actual heavy-haul service?
A: Yes. 75kg rails have been used on the Datong-Qinhuangdao Railway since 2007, the world's busiest heavy-haul line, achieving 2.7 billion tonnes total passed tonnage .
Q: Do you provide matching fasteners for 75kg rails?
A: Yes. We supply complete track systems including heavy-haul rail clips, fish plates, bolts, rubber pads, and rail anchors .
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 specializes in the international trade of GB standard rails, with its product portfolio covering heavy rails of 38kg/m - 75kg/m, light rails of 15kg/m and 22kg/m, as well as QU crane rail series, among others. Leveraging stable supply sources and an efficient logistics system, we are capable of providing customers with competitive procurement solutions.
GNEE adheres to integrity-based operations and is committed to meeting the needs of different markets with reliable quality and premium services. Whether you require standard GB rail products or have special customization requirements for rails, GNEE can offer you suitable rail products. Please contact GNEE to obtain a detailed quotation.
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