Rail Tie Plate 7-1/2" x 11"

The 7-1/2" x 11" tie plate is a standard size typically used for medium-duty rail sections, such as 90 lb (90RA) or 100 lb (100RE) rails, rather than the heavier 115RE section which usually requires 13-inch or 14-inch plates.

The 7-1/2" x 11" (often technically listed as 7-3/4" x 11") is a standard AREMA Plan 4 tie plate. It is primarily designed for 115RE rail and other sections with a 5-1/2" rail base width.

Technical Specifications

Dimensions: 7-1/2" (width) x 11" (length).

Weight: Approximately 14.09 lbs (6.4 kg) per plate.

Rail Compatibility: Optimized for 115RE, 119RE, and 100RE rail sections with a 5-1/2" or 5-3/8" base.

Inclination (Cant): Standard 1:40 cant, which tilts the rail head toward the track centerline to improve wheel bearing and stability.

Shoulder Type: Typically a single shoulder design. Single shoulder plates are often used for rail weights between 56 lbs and 100 lbs to prevent the rail from expanding outward. 

Key Features

Hole Patterns: Usually features 4 line holes (punched to align with the rail base edge) but can be customized with up to 8 holes for specific anchoring needs.

Materials: Manufactured from hot-rolled high-carbon steel or forged low-carbon steel (such as Q235 or S275JR).

Thickness: Approximately 0.6" thick, with shoulders raised an additional 0.4" to secure the rail. 

Common Applications

Standard Gauge Maintenance: Used in the US market for medium-density freight and transit lines.

Backyard/Scale Railroads: Frequently cited in 7.5" gauge backyard railroad projects (often scaled-down versions or repurposed "relay" plates) for bridge work and switches. 

Signum specializes in AREMA tie plates, specifically for 115RE or 136RE rail sections. We currently support North American infrastructure projects by providing forged,rolled and cast plates that meet Plan 8 and Plan 12 specifications.We’d love to send over our latest technical data sheets and lead times for your maintenance cycle if you need.