The P43 rail is a 43kg heavy steel rail under the Chinese GB standard, widely used in conventional railway lines and main transport corridors, capable of supporting medium-speed passenger trains and heavy freight trains.
This rail is made of high-quality U71Mn or 50Mn steel, offering high strength, good toughness, and wear resistance, ensuring long-term safe railway operation.
| 50Mn | Mechanical property | Chemical Composition(%) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yield Strength |
Tensile Strength |
Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
| ≥390 | ≥40 | ≥645 | ≥66 | ≥13% | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | 0.025 | 0.025 | 0.025 | ||
| U71Mn | Mechanical property | Chemical Composition(%) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yield Strength |
Tensile Strength |
Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
| ≥880 | 9% | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.030 | 0.030 | 0.025 | 0.025 | 0.025 | |||||
The P43 rail features an optimized cross-section with balanced metal distribution in the rail head, web, and base, effectively bearing train loads and minimizing track deformation.
| Size | Rail Height(mm) A |
Base Width(mm) B |
Head Width(mm) C |
Web Thickness(mm) t |
Weight(kg/m) |
|---|---|---|---|---|---|
| 38kg | 134 | 114 | 68 | 13 | 38.73 |
| 43kg | 140 | 114 | 70 | 14.5 | 44.65 |
| 50kg | 152 | 132 | 70 | 15.5 | 51.51 |
| 60kg | 176 | 150 | 73 | 16.5 | 60.64 |
| 75kg | 192 | 150 | 75 | 20 | 74.41 |
GNEE RAIL can supply steel rails compliant with GB, DIN, UIC, and other international standards, offering customizable lengths, surface treatments, and special cross-section designs to meet diverse customer and track requirements.
GNEE RAIL provides comprehensive after-sales service and installation guidance, including track laying plans, welding recommendations, and track maintenance solutions, ensuring rail longevity and operational safety.
