115RE TR57 Steel Rail
Product: 115re rail
Type: Heavy rail
Standard:AREMA, ASTM
Grade: 900A/1100
Packing:according to requirements
Length: 12m~25m or other lengths according to customer requirements
As a direct manufacturer, GNEE RAIL provide premium AREMA-standard TR57 (115RE) steel rails designed for both national railway networks and heavy-load industrial/factory lines. Available in high-performance steel grades-with custom metallurgy available upon request-our rails are supplied in standard lengths from 12 to 36 meters and can be fully customized to meet your precise project requirements. Please contact our engineering team today to review technical data sheets, chemical compositions, and customized solutions for your track infrastructure.
115RE (TR57) Rail Dimensional Specifications
To ensure track safety and optimal wheel-rail interaction, the 115RE rail is produced to precise dimensional tolerances. Below are the standard geometric properties of the profile:
| Parameter | Imperial Value | Metric Value (Standard) |
|---|---|---|
| Nominal Weight | 114.7 lbs/yd | 56.90 kg/m |
| Rail Height (H) | 6-5/8 inches | 168.28 mm (approx. 168.3 mm) |
| Base Width (B) | 5-1/2 inches | 139.70 mm (approx. 139.7 mm) |
| Head Width (C) | 2-11/16 inches | 69.06 mm (approx. 69.1 mm) |
| Web Thickness (D) | 5/8 inches | 15.88 mm (approx. 15.9 mm) |
| Sectional Area | 11.25 sq inches | 72.58 cm² |
Steel Grades and Metallurgical Classes
To withstand varying axle loads and complex environmental conditions, 115RE steel rails are produced under two primary chemical categories defined by AREMA standards: Carbon Steel Chemistry and Low Alloy Steel Chemistry. Within these categories, the rails are classified into Standard Strength, Intermediate Strength, and High Strength / Head Hardened grades to match specific track demands.
1. Mechanical Properties of AREMA 115RE Rail
The mechanical integrity of the 115RE rail is determined by its hardness, tensile strength, yield strength, and elongation qualities. Below are the verified values for each grade:
| Specification Category | Steel Grade (Grade shown on web) | Hardness (HB) | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation (%) |
|---|---|---|---|---|---|
| AREMA (with Carbon Steel chemistry) | Standard Strength (SS) | ≥ 310 | ≥ 142.5 | ≥ 74.0 | ≥ 10 |
| Intermediate Strength (IS) | ≥ 350 | ≥ 155.0 | ≥ 105.0 | ≥ 10 | |
| High Strength / Head Hardened (HH) | ≥ 370 | ≥ 171.0 | ≥ 120.0 | ≥ 10 | |
| AREMA (with Low Alloy Steel chemistry) | Standard Strength (LA) | ≥ 310 | ≥ 142.5 | ≥ 74.0 | ≥ 10 |
| Intermediate Strength (IH) | ≥ 325 | ≥ 147.0 | ≥ 80.0 | ≥ 8 | |
| High Strength / Head Hardened (LH) | ≥ 370 | ≥ 171.0 | ≥ 120.0 | ≥ 10 |
2. Chemical Composition of TR57 / 115RE Steel Rail
The elemental distribution is carefully controlled under AREMA 2019 parameters to optimize wear resistance, toughness, and microstructural uniformity. The precise chemical composition breakdown is detailed below:
| AREMA 2019 Chemistry Class | C% | Mn% | P% (max) | S% (max) | Si% | Ni% (max) | Cr% | Mo% (max) | V% (max) | Al% (max) |
|---|---|---|---|---|---|---|---|---|---|---|
| Carbon Steel | 0.74 - 0.86 | 0.75 - 1.25 | ≤ 0.020 | ≤ 0.020 | 0.10 - 0.60 | ≤ 0.25 | ≤ 0.30 | ≤ 0.060 | ≤ 0.010 | ≤ 0.010 |
| Low Alloy Steel (for Std Strength) | 0.72 - 0.82 | 0.80 - 1.10 | ≤ 0.020 | ≤ 0.020 | 0.10 - 0.50 | ≤ 0.15 | 0.25 - 0.40 | ≤ 0.050 | ≤ 0.010 | ≤ 0.005 |
| Low Alloy Steel (for Int. & High Strength) | 0.72 - 0.82 | 0.70 - 1.25 | ≤ 0.020 | ≤ 0.020 | 0.10 - 1.00 | ≤ 0.15 | 0.40 - 0.70 | ≤ 0.050 | ≤ 0.010 | ≤ 0.005 |
Key Structural Advantages of 115RE Rail
The engineering design of the 115RE profile offers several practical benefits for modern railway infrastructure:
Balanced Stress Distribution: The transition radii between the head, web, and base are designed to minimize stress concentrations, reducing the probability of fatigue cracks.
Optimized Wheel Contact: The 69.06 mm head width provides a reliable contact patch with standard wheel profiles, ensuring stable vehicle dynamics and low rolling resistance.
Weldability: Low-carbon equivalent options allow for efficient thermite welding and flash-butt welding, facilitating the installation of Continuous Welded Rail (CWR) systems.
Compatibility: The 115RE rail integrates with standard AREMA track hardware, including tie plates, joint bars (fishplates), elastic clips, and anchors.
Leading 115RE Rails Manufacturer- GNEE RAIL
GNEE RAIL manufactures the 115RE rail profile in strict accordance with ASTM A1 and AREMA specifications, supported by a rigorous testing protocol. Our comprehensive quality assurance measures include:
Ultrasonic Testing: Performed to identify internal micro-voids, inclusions, or laminations throughout the entire length of the rail.
Dimensional Inspections: Laser-guided systems monitor height, base width, and straightness to ensure compatibility with automatic fastening systems.
Hardness Verification: Regular testing of the rail head to ensure the heat treatment meets the target Brinell hardness values.
Tensile and Chemical Analysis: Conducted to verify mechanical properties and precise control of elements such as carbon, manganese, and silicon.
Frequently Asked Questions (FAQ)
- What is the difference between 115RE rail and TR57 rail?
Practically, 115RE and TR57 refer to the same physical rail profile. "115RE" is the standard American designation defined by AREMA, where 115 represents the nominal weight of 114.7 lbs/yard. "TR57" is the designation used by European/international manufacturers, representing a metric nominal weight of approximately 56.9 kg/m (rounded to 57 kg/m).
- What are the standard lengths available for 115RE rail?
Standard delivery lengths for 115RE rails generally range from 39 feet (11.9 m) to 80 feet (24.4 m) for stock sizes. Custom lengths, such as 12m, 12.5m, 18m, or 25m, are often provided based on project requirements and transport capabilities.
- When should Head Hardened (HH / LH) 115RE rail be specified?
Head Hardened rails (such as HH or LH grades with hardness ≥ 370 HB) are recommended for high-wear areas such as sharp curves, steep grades, and sections of the track that experience frequent braking or heavy-axle freight traffic. The heat treatment significantly increases wear resistance and extends the service life under abrasive conditions.
- Which joint bars (fishplates) are compatible with 115RE rail?
115RE rail is designed to be paired with standard AREMA 115RE joint bars, available in 4-hole (24-inch) or 6-hole (36-inch) configurations. These joint bars match the specific fishing angles of the 115RE rail web to ensure a secure mechanical joint.
- Is 115RE rail suitable for high-speed rail passenger lines?
While 115RE is widely used for heavy-haul, regional passenger, and transit systems, modern high-speed passenger lines (operating above 250 km/h) often prefer heavier profiles like 136RE (TR68) or European standard 60E1 (UIC60) to provide additional stiffness and dynamic stability. However, 115RE remains an efficient and reliable choice for medium-speed lines and urban subways.
Looking for Other Rail Standards?
GNEE RAIL offers a comprehensive range of railway rails and crane rails manufactured to major international standards, including AREMA, UIC860, EN 13674-1, BS11, JIS E1101, AS1085, GOST R51685, ASTM, ASTM A759-2000, TB/T2344-2012, TB/T3276-2011, TB/T3109-2013, YB/T5055-2014, and EN 14811:2006.
Whether you require standard rail sections or customized rail profiles, GNEE RAIL can provide complete rail solutions for heavy-haul railways, urban transit systems, mining operations, industrial sidings, and crane runway applications. Send us your rail specifications, drawings, or project requirements, and our engineers will recommend the most cost-effective solution for your needs.
Hot Tags: 115re tr57 steel rail, China 115re tr57 steel rail manufacturers, suppliers, factory, 50kg Heavy Rail, 75KG Heavy Duty Rail, GB2585 rail, track Heavy Rail, U71Mn 60kg Rail, U75V U71mn 60kg rail
Send Inquiry
