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The Rail joint bars for 115RE rail is also know as 115RE rail fish plate or 115RE rail splice bar.Exactly. Whether you call it a joint bar, fish plate, or splice bar, they all refer to the same steel plates used to bolt rail ends together.
Rail joint bars for 115RE rail (a standard 115 lb/yd rail profile) are critical fasteners used to connect two rail sections while maintaining track alignment and structural integrity. They are most commonly available in 24-inch (4-hole) and 36-inch (6-hole) lengths to meet AREMA standards.
Standard Specifications
Standard Specifications
Compatibility: Designed specifically for the 115RE rail profile (also known as TR57).
Dimensions: 4-Hole Bar: 24" length, typically weighing approximately 68 lbs per pair；6-Hole Bar: 36" length, typically weighing approximately 102 lbs per pair.
Hole Pattern: Standard drilling is often 6" x 7-1/8" x 6" for 4-hole bars and 6" x 6" x 7-1/8" x 6" x 6" for 6-hole bars.
Fasteners: Usually requires 1" diameter oval neck track bolts (e.g., 1" x 6").
Material: High-strength quenched carbon steel or micro-alloy steel.
Weight per Pair
Weight per Pair
Mechanical Property Requirements
Mechanical Property Requirements
To handle the heavy dynamic loads of freight and transit, 115RE bars must meet high strength and ductility thresholds.
Tensile Strength: ≥100,000 psi ( ≈690 MPa).
Yield Point: ≥70,000 psi ( ≈480 MPa).
Elongation: ≥12% in 2 inches.
Reduction of Area: ≥25%.
Heat Treatment
Heat Treatment
Standard joint bars are quenched and tempered. This process involves heating the steel to a specific temperature and then rapidly cooling it in oil or water to refine the grain structure, significantly increasing its fatigue resistance and toughness compared to untreated "relay" or lower-grade bars.
Available Types
Available Types
Standard Joint Bars: Used for connecting identical 115RE rail sections.
Toeless Joint Bars: A modern design that eliminates the "toe" or flange at the bottom of the bar, allowing for easier installation and maintenance in certain track conditions.
Compromise Joint Bars: Specifically engineered to connect 115RE rail to other rail sizes, such as 132RE or 136RE, by accounting for differences in rail height and head width.
Insulated Joint Bars: Used in signalized territory to electrically isolate track sections, often featuring bonded or non-bonded fiberglass or composite materials.
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