115RE R10 (TR57) Rail
115RE R10 Rail is the R10 profile variant of the AREMA/TR57 115 lb/yd family, with a nominal mass of 56.90 kg/m. Designed for heavy haul, port and industrial tracks, it balances fatigue resistance with installation-friendly geometry.
115RE Rail Specifications and Dimensions
| Specification | Value |
|---|---|
| Rail profile | 115RE R10 |
| Nominal weight | 56.90 kg/m (114.7 lb/yd) |
| Rail height | 168.28 mm (6 5/8 in) |
| Head width | 69.06 mm (2 23/32 in) |
| Base width | 139.70 mm (5 1/2 in) |
| Web thickness | 15.88 mm (5/8 in) |
| Standard | AREMA; confirm the required edition for your project |
| Supply length | 12–25 m; cut-to-length options on request |
| Processing | Cutting, drilling and other specified processing, subject to confirmation |
Click the drawing to enlarge.
Steel Grades, Hardness and Material Requirements
| AREMA 2019 | Strength grade | C | Si | Mn | P | S | Ni | Cr | V |
|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition(%) | |||||||||
| 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 | |
| AREMA 2019 | Strength grade | Yield Strength | Tensile Strength | Elongation | Brinell Hardness |
|---|---|---|---|---|---|
| N/mm2 | N/mm2 | % | HBW | ||
| Mechanical Properties | |||||
| Carbon Steel | Standard Strength (SS) | 511 MIN | 983 MIN | 10 MIN | 310 MIN |
| Intermediate Strength (IS) | 724 MIN | 1069 MIN | 10 MIN | 350 MIN | |
| High Strength/Head Hardened(HH) | 828 MIN | 1179 MIN | 10 MIN | 370 MIN | |
| Low Alloy Steel | Standard Strength (SS) | 511 MIN | 983 MIN | 10 MIN | 310 MIN |
| Intermediate Strength (IS) | 552 MIN | 1014 MIN | 8 MIN | 325 MIN | |
| High Strength/Head Hardened(HH) | 828 MIN | 1179 MIN | 10 MIN | 370 MIN | |
Typical Applications
Mainline heavy haul
Port/terminal tracks
Mining/industrial haulage
In-plant crane rails (specify heat treatment where required).
Compatibility & Engineering Notes
Although part of the 115RE/TR57 family, R10 is a profile variant. Local parameters (head width, arc radii, straight segments) affect wheel-rail contact, clip fit and turnout/frog compatibility. Perform CAD overlay checks and confirm hole/clip dimensions before substitution.
Engineering recommendations
Submit existing profile → we perform overlay comparison and compatibility report.
Use the same profile for precision components (turnouts, frogs).
Use milling or short welded transition if required to ensure smooth transition.
FAQs
Q: What is 115RE R10?
A: 115RE R10 is an R10-profile variant of the AREMA/TR57 (115 lb/yd) heavy-rail section.
Q: Can you provide HT/hardening?
A: Yes — Available on request; quote includes process and inspection requirements.
Q:What differs between 115RE and 115RE R10?
A: Both belong to TR57 family; the difference is in head/local profile details (head-center width, arc radii, straight segment lengths), producing small differences in contact geometry and mass distribution (hence 56.80 vs 56.90 kg/m reported).