What is the tensile strength of Rail Rubber Pads?
The tensile strength of rail rubber pads typically ranges from 12.5 MPa to 19 MPa, depending on the specific material and manufacturing standards. For example, some EVA (ethylene-vinyl acetate) pads show a tensile strength of 16 MPa, while others specify a minimum of 19 MPa. Other types, like certain composite pads, may have a minimum of 13 N/mm² (13 MPa).
| Rubber Rail Pad | ||
| Technical Parameter | Unit | Value |
| Stiffness | KN | 90-130 |
| Hardness Shore A | ℃ | 72-80 degree |
| Electronic Resistance | Ω | ≥ 106 |
| Tensile Strength before Aging | Mpa | ≥12.5 |
| Elongation before Aging | % | ≥250 |
- Common range: Between 12.5 MPa and 19 MPa.
- EVA pads: Often listed at around 16 MPa, but can be specified as a minimum of 19 MPa.
- Composite pads: May have a minimum tensile strength of over 13 MPa.
- After aging: Some materials may have slightly different tensile strength values after aging tests.
The rail pad function is to reduce fatigue cracking of the concrete ties, which is believed to be driven by impact and vibration from the passing train. When the wheel is running over the rubber pad, the latter's rigidity shall be enough to prevent larger movements which can result in the loose of rail clip. Such a load-deflection feature can be obtained by grooves in the rubber pad. Rubber rail pads are normally designed to a specified load-deflection characteristic.
A rail pad plays an important role in reducing shock and vibration, the detailed functions lie in the following:
- Distribute the load that the trains pressed on the rails with a larger elastic surface.
- Reduce the noise that trains hitting on the rails and improve the comfort of the passengers.
- The use of rail pad can decrease the abrasion of rails and prolong the service life of rail track.
- The elasticity of rail pad can decrease the vibration
As a professional rubber rail pad manufacturer GNEE RAIL can produce various standards of rubber rail pads and other rail fasteners. If you want to build a railway line, do not hesitate to contact us, we can supply all types of rubber rail pads with different materials. If necessary, we can make customized rubber rail pad production.
