AREMA 136LB 136RE TR68 Rail
Product:136RE Rail
Standard: AREMA
Steel Grade: 900A/1100
Length: 12m-25m (customizable)
Weight: 67.41 kg/m
Bottom width: 152.4 mm
Mesh thickness: 17.46 mm
Head width: 74.61 mm
Guide rail height: 185.74 mm
What Does 136RE Rail Mean?
136RE rail is a heavy-duty, AREMA-standard steel rail weighing approximately 136 pounds per yard (67.5 kg/m), designed for high-load mainlines, freight routes, and industrial crane applications.
- 136: Indicates the nominal weight of the rail. It weighs approximately 136 lbs per yard.
- RE: Stands for the rail section defined by the American Railway Engineering Association (now AREMA).
- TR68: This is an alternative designation used in some international markets for the exact same AREMA standard steel rail profile.
Whether your project tender calls for 136 pound rail, rail 136 lbs, or 136RE heavy rail, they all refer to this robust, heavy-duty profile designed to withstand extreme axle loads.
GNEE RAIL is a trusted manufacturer and exporter of heavy-duty railway products. We supply premium AREMA 136RE rail (also widely referred to as 136 lb rail or TR68 in certain regions) that strictly conforms to the American Railway Engineering and Maintenance-of-Way Association (AREMA) standards.Designed for heavy-haul freight networks and Class I railroads, our 136 RE steel rail offers exceptional wear resistance, structural integrity, and long service life for the most demanding track conditions.
136RE Rails Specification
Accurate matching of the 136re rail profile with existing track infrastructure and fasteners is critical. Below is the exact geometric and mass data for the 136re rail section.
Geometric Dimensions (136 lb rail dimensions):
| Parameter | Imperial Measurement | Metric Measurement |
| 136re Rail Height | 7-5/16" | 185.74 mm |
| Head Width (Top) | 2-15/16" | 74.61 mm |
| Base Width | 6" | 152.40 mm |
| Web Thickness | 1-3/16" | 30.16 mm |
| Cross-Sectional Area | 13.35 sq. in. | 86.13 cm² |
How much does a 136 rail weigh?
A 136 lb rail (also known as 136RE or TR68) has a nominal weight of 136 lbs per yard (approximately 67.5 kg/m or 67.41 kg/m depending on the supplier). It is a heavy-duty, AREMA-standard profile typically used in high-speed, heavy-haul freight, and industrial lines. Standard lengths are usually 39 or 80 feet.
Chemical Composition & Steel Grades for 136lb Rail
136lb (136RE) rail is a high-strength American Railway Engineering and Maintenance-of-Way Association (AREMA) standard rail, typically manufactured from carbon steel (700/900A/1100) or high-strength head-hardened (HH) steel. It weighs (67.41kg/m) and is commonly used for heavy-haul, high-speed, and high-axle load, featuring a chemical composition of C (0.72–0.86%), Si (0.10–1.00%), and Mn (0.75–1.25%).
Chemical Composition of AREMA Rail Steel:
| AERMA 2019 | Strength Grade | C | Si | Mn | P | S | Ni | Cr | V |
|---|---|---|---|---|---|---|---|---|---|
| Carbon Steel | 0.74–0.86 | 0.10–0.60 | 0.75–1.25 | ≤0.020 | ≤0.020 | ≤0.25 | ≤0.30 | ≤0.010 | |
| Low Alloy Steel | Standard Strength (SS) | 0.72–0.82 | 0.10–0.50 | 0.80–1.10 | ≤0.020 | ≤0.020 | ≤0.15 | 0.25–0.40 | ≤0.010 |
| Intermediate Strength (IS) | 0.72–0.82 | 0.10–1.00 | 0.70–1.25 | ≤0.020 | ≤0.020 | ≤0.15 | 0.40–0.70 | ≤0.010 | |
| High Strength / Head Hardened (HH) | 0.72–0.82 | 0.10–1.00 | 0.70–1.25 | ≤0.020 | ≤0.020 | ≤0.15 | 0.40–0.70 | ≤0.010 |
Mechanical Properties of AREMA Rail Steel:
| AREMA 2019 | Strength Grade | Yield Strength N/mm2 |
Tension Strength N/mm2 |
Elongation % |
Brinell Hardness HBW |
|---|---|---|---|---|---|
| Carbon Steel | Standard Strength (SS) | 511MIN | 983MIN | 10MIN | 310MIN |
| Intermediate Strength (IS) | 724MIN | 1069MIN | 10MIN | 350MIN | |
| High Strength / Head Hardened (HH) | 828MIN | 1179MIN | 10MIN | 370MIN | |
| Low Alloy Steel | Standard Strength (SS) | 511MIN | 983MIN | 10MIN | 310MIN |
| Intermediate Strength (IS) | 552MIN | 1014MIN | 8MIN | 325MIN | |
| High Strength / Head Hardened (HH) | 828MIN | 1179MIN | 10MIN | 370MIN |
Key characteristics of 136RE rails
The engineering design of the 136RE rail prioritizes high load-bearing capacity, minimal deflection, and fatigue resistance for Class I and heavy-haul freight operations. Below are the defining technical characteristics of this profile:
1. Massive Cross-Section for High Axle Loads
Classified primarily as a 136RE heavy rail, this product is engineered to support extreme dynamic forces and axle loads exceeding 30 tons. The nominal 136re rail weight of 136.0 lbs/yd (equivalent to 67.46 kg/m) provides the necessary mass to absorb severe impact loads.
2. Optimized Geometric Stiffness
The specific 136re rail dimensions dictate a high moment of inertia (94.9 in⁴), which minimizes vertical track deflection under load. The tall 136re rail height of 7-5/16" combined with a broad 6" base ensures exceptional structural stiffness. Rely on the precise 136re rail profile to distribute train loads evenly into the crossties and ballast, maintaining track gauge and alignment over extended service cycles.
3. Strict AREMA Standardization & Interchangeability
As a certified AREMA standard steel rail, every geometric aspect of the 136re rail section is strictly governed by AREMA guidelines. This guarantees 100% interchangeability with existing North American track networks and standard rail fasteners. In international mining markets, this identical arema 136re rail is frequently procured under the alternative designation TR68.
4. Advanced Metallurgy for Wear Resistance
The 136 RE steel rail is produced using fully killed, vacuum-degassed carbon steel to eliminate internal impurities. For track environments subjected to severe rolling contact fatigue-such as sharp curves or steep mining gradients-the AREMA 136RE rail is supplied in Head Hardened (HH) grades. This thermal treatment increases the head hardness to over 370 HBW, significantly extending rail grinding intervals and overall service life.
136LB Fishplates - 136RE Rail
136LB fishplates (also known as 136RE rail joint bars) are heavy-duty, AREMA-standardized steel plates designed to connect 136RE rail sections. These high-strength fishplates are typically 4-hole or 6-hole, hot-forged, and used on major railroads, mining tracks, and heavy-haul industrial lines to ensure structural integrity and smooth transit.
Standard Specifications:
| Parameter | 132RE | 136RE | 141RE |
|---|---|---|---|
| Rail Weight (lb/yd) | 132 | 136 | 141 |
| Joint Bar Material | High-strength carbon steel (55# steel) | ||
| Tensile Strength | ≥ 80 ksi (approx. 550 MPa) | ||
| Yield Strength | ≥ 50 ksi (approx. 345 MPa) |
Approximate Joint Bar Dimensions (in inches):
| Dimension | 132RE | 136RE | 141RE |
|---|---|---|---|
| Length | ~24″ (609.6 mm) | ~24″ (609.6 mm) | ~24.5″ (622.3 mm) |
| Height (at Rail Seat) | ~3.25″ (82.6 mm) | ~3.35″ (85.1 mm) | ~3.5″ (88.9 mm) |
| Web Thickness | ~0.75″ (19.05 mm) | ~0.78″ (19.8 mm) | ~0.82″ (20.8 mm) |
| Number of Bolt Holes | 4 holes (2 per side) | ||
| Bolt Hole Diameter | ~0.875″ (22.2 mm) | ||
| Center-to-Center Bolt Spacing (Horizontal) | ~6″ (152.4 mm) | ||
| Center-to-Center Bolt Spacing (Vertical) | ~Varies based on rail profile |
Other AREMA Rail Profiles Supplied by GNEE RAIL
In addition to the 136RE profile, GNEE RAIL manufactures and supplies a comprehensive range of AREMA standard steel rails. Our production capabilities cover rail sections from 90 lbs/yd to 141 lbs/yd to accommodate varying axle loads and track conditions. All profiles strictly adhere to AREMA dimensional tolerances, physical properties, and metallurgical specifications.
- 90ARA-A (TR45): A 90 lbs/yd (approx. 44.6 kg/m ) rail section. Primarily utilized for light freight lines, industrial sidings, and low-speed switching yards.
- 100RE: A 100 lbs/yd (49.6 kg/m ) profile. Standard for medium-duty freight routes, transit systems, and branch lines requiring moderate load capacity.
- 115RE (TR57): A 115 lbs/yd (approx. 56.9 kg/m ) rail. This is a standard mainline profile widely installed in Class II/III railroads, commuter lines, and general freight networks.
- 119RE: A 119 lbs/yd (59.0 kg/m ) rail section. Commonly specified for heavy transit networks and specific mainline freight applications requiring increased head wear allowance.
- 132RE: Weighing 132.1 lbs/yd (65.5 kg/m ), this is a traditional heavy-haul mainline profile, frequently utilized in existing Class I railroad maintenance and track renewals.
- 133RE: A 133.4 lbs/yd (66.2 kg/m ) profile. It features a deeper head design compared to the 132RE, optimized for extended wear life in heavy freight corridors.
- 141RE: Weighing 141 lbs/yd (69.9 kg/m ), this is the heaviest standard AREMA profile. Engineered exclusively for extreme axle loads, severe curves, and maximum tonnage mining lines.
| Type of Rails | Dimensions (mm) | Weight (kg/m) | Steel Grade | |||
|---|---|---|---|---|---|---|
| Rail height (A) | Bottom Width (F) | Head Width (C) | Web Thickness (t) | |||
| 90ARA-A (TR45) | 142.9 | 130.2 | 65.1 | 14.3 | 44.65 | Standard Strength (SS) Intermediate Strength (IS) High Strength / Head Hardened (HH) |
| 100RE | 152.4 | 136.5 | 68.3 | 14.3 | 50.34 | |
| 115RE (TR57) | 168.3 | 139.7 | 69.1 | 15.9 | 56.9 | |
| 119RE | 173.1 | 139.7 | 67.5 | 15.9 | 58.86 | |
| 132RE | 180.9 | 152.4 | 76.2 | 16.6 | 65.58 | |
| 133RE | 179.39 | 152.4 | 76.2 | 17.46 | 66.1 | |
| 136RE (TR68) | 185.7 | 152.4 | 74.6 | 17.5 | 67.5 | |
| 141RE | 188.91 | 152.4 | 77.79 | 17.46 | 69.94 | |
FAQ
Q1: What exactly does 136re rail means, and is it identical to TR68?
A: Yes, they are physically identical. The term 136RE denotes the AREMA profile standard (nominally 136 lbs/yd), while TR68 is the metric designation used in international markets for the exact same rail section.
Q2: What is the exact 136re rail weight when converting 136lbs to kg for metric project calculations?
A: The nominal weight is 136.0 lbs per yard. For metric calculations, this translates directly to 67.46 kg per meter. Standard manufacturing weight tolerances apply as per AREMA guidelines.
Q3: What is the standard 136re rail height and base width according to the 136 lb rail dimensions?
A: The standard height is 7-5/16 inches (185.74 mm), and the base width is 6 inches (152.40 mm). These precise 136 lb rail dimensions are critical for ensuring proper fitment with standard tie plates and rail clips.
Q4:What is the cross sectional area of 136 lb rail?
The cross-sectional area of a standard 136 lb RE (AREMA) rail is 13.32 in² (approximately 85.94cm²).
Q5: Do standard joint bars fit the 136re rail profile, or does the 136re rail section require specific fishplates?
A: You must use joint bars specifically manufactured for the 136re rail profile. The web thickness and fishing angles of this specific 136re rail section will not match properly with plates designed for 132RE or 141RE rails.
Q6: Does your 136 RE steel rail undergo ultrasonic testing to meet AREMA standard steel rail requirements?
A: Yes, 100% continuous inline Ultrasonic Testing (UT) is performed on the head, web, and base of every 136 RE steel rail. A Mill Test Certificate (MTC) is provided with every shipment to verify full standard compliance.
Q7: What steel grades are available for arema 136re rail used in 136RE heavy rail mining applications?
A: We supply standard carbon (SS) with a minimum hardness of 300 HBW, and Head Hardened (HH) grades exceeding 370 HBW. The HH grade is required for severe curves and maximum axle loads in 136RE heavy rail operations.
GNEE RAIL supplies 136RE rail manufactured with refined alloying elements and mature processes, delivering 700/900/1100 steel grades that ensure uniform internal structure, high tensile strength, and excellent hardness-so your tracks resist deformation and damage under long-term heavy-load operation. Every rail features good toughness and weldability, which speeds up on-site track laying and reduces joint failures, while strict AREMA/AREA quality control guarantees dimensional accuracy and mechanical properties fully compliant with U.S. railway standards. Contact GNEE RAIL today for project-based pricing, test certificates, or sample rails to secure reliable, high-performance 136RE rail for your heavy-haul lines.
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