The 100RE rail—also called 100lb rail or TR50 rail—meets AREMA standards for demanding track systems. Weighing 50.34 kg/m (100 lb/yd), it delivers a strong, flexible, and durable design. Made from high-strength carbon or alloy steel, the rail comes in HH, IS, and SS grades, offering excellent wear resistance, fatigue endurance, and reliable long-term performance.
The table below outlines the standard dimensions of the 100RE rail, including head width, base width, web thickness, and overall height, helping engineers and project teams confirm compatibility with their track systems.
| Type of Rail | Standard | Dimensions mm | Steel Grade | Mass M | |||
| Height | Base Width | Head Width | Web Thickness | kg/m | |||
| 100RE | AREMA | 152.4 | 136.5 | 68.3 | 14.3 | IS/SS | 50.34 |
The 100RE rail is available in IS (intermediate-strength) and SS (standard-strength) steel grades. Each grade offers different mechanical properties and chemical compositions, enabling engineers to select the appropriate option based on load conditions and track design requirements. Detailed specifications are listed in the tables below.
| IS | 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 | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
| 846 | 1271 | 11.50% | 0.78 | 0.52 | 0.95 | 0.03 | 0.03 | 0.25 | 0.25 | 0.25 | ||||
| SS | 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 | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
| 564 | 1054 | 10% | 0.82 | 0.53 | 1.17 | 0.03 | 0.03 | 0.3 | 0.25 | 0.25 | ||||
We supply 100RE rail in accordance with AREMA standards, with stable production capacity and reliable quality control. Standard lengths from 12 to 25 meters are available, with custom cutting and processing services to match specific project requirements.
With experienced export handling and strict inspection procedures, our 100RE rails are delivered ready for installation, helping reduce on-site adjustments and project downtime. Whether for port cranes, industrial railways, or heavy-duty service lines, we support both small-batch orders and bulk supply with consistent lead times.
Looking for a reliable 100RE rail supplier for your project? Share your required length, quantity, steel grade, and application. Our team will respond with a clear quotation and technical support.