What are railroad anchors made of?
Jan 04, 2026
Rail anchors made in one-piece construction from spring steel are designed to fasten the steel rail tight on the base of the rail to prevent the rail from longitudinal movements, i.e. the " creeping" of the rail, caused by changing temperature, grades, traffic patterns, and braking action of trains.
Rail anchors are applied to the rail base directly and lodge up against the tie. Rail anchors provide a large bearing surface against rail base and railroad tie, preventing cutting and wear, and eventually to prolong the working life of the railroad ties. Anchors are made for a specific rail weight and base width, which can be classified into two types: the Drive-on rail anchors and Spring type rail anchor.
What are railroad anchors made of?
Railroad anchors are primarily made from one-piece, heat-treated spring steel, chosen for its elasticity and strength to grip the rail base and prevent longitudinal movement (creep). Common spring steel alloys like 60Si2MnA are used, providing resilience to withstand track forces and allowing for re-use during track maintenance.
Key Material Properties:
- Spring Steel: Offers excellent mechanical properties, fatigue resistance, and toughness, allowing it to clamp firmly yet flex without breaking.
- Heat Treatment: Essential for achieving the desired hardness and elasticity.
- One-Piece Construction: Ensures a strong, continuous grip on the rail.
| Product Name | Rail Anchors |
| Material | 60Si2MnA;45#;QT500-7;QT450-10 |
| weight | 0.64kg-2.24kg |
| Production engineering | Forging, casting |
| Standard | BS,DIN,ISO,GB,JIS. |
| Surface treatment | Zinc-plated, sandblasting, plain |
| Certificate | ISO9001 |
| Size | customer's drawing |
What is the function of a railroad anchor?
A railroad anchor's main job is to prevent the steel rail from moving lengthwise (creeping) along the ties, which is caused by temperature changes, train braking, and traffic vibration, ensuring track stability, proper gauge, and preventing rail wear and tie damage by clamping onto the rail base and pressing against the crosstie. These spring-steel clips transfer longitudinal forces from the rail to the tie, maintaining the track's integrity.
GNEE RAIL manufactures different types of rail anchors from special T shaped spring steel, after the forging and heat treatment it has advantage of uniform strength and lasting service. The anchors are used where the fastenings system requires an extra creep resisting arrangement. There are various shapes of the anchor which is made of rolled bars of various sections. When wheel runs on the rail, the railway anchor grips the rail firmly and when set against sleepers, resists longitudinal movement of the rails caused by passing trains.
