1 / 5

Railway Accessories Rail Iron Shoulder

Still deciding? Get samples of $ !

Request Sample

Send Inquiry

Product Description

Basic Specifications

Model NO.

Shoulder

Type

Shoulder

Transport Package

Cartons, Woven-Bags or Gunny-Bags in Wooden Cases

Origin

China

HS Code

7318150000

Capacity

20,000 PCS/Day

Product Description

Rail shoulder is cast in the concrete rail ties to fix the elastic rail clips. There are two types of rail shoulders available, the cast-in shoulder and the weld-on shoulder, both of which are used for the fixing of elastic rail clips.

The casting shoulders as the embedded part of the rail way fastening system are pressed in concrete sleeper and work together with the E clip to fasten the rail. The cast in shoulder is made by casting from iron, following international standards such as GB/T 1348-1988, NF EN 1563, ISO1038, DIN 1693, JIS G5502, KS D 4302, GOST 7293, or BS EN 1563.

Application	Material (Grade)	Standard	Compatibility
UIC54	QT500-7	GB 1348-88	115RE, 50kg rail, 60kg rail
UIC60	QT450-10	GB 1348-88	BS80lbs, BS100lbs, etc.
Heavy Haul	QT400-15	GB 1348-89	Custom Rail Profiles

Common Types of Rail Shoulder

The Rail shoulder is a semi-embedded part cast in the concrete rail ties to fix the elastic rail clip to the base plate. There are two common types available:

Cast-in Shoulder: Used in pre-stressed concrete ties (Single Stem) or Bi-Block/Twin Block ties (Twin Stem).
Weld-on Shoulder: Forged according to AREA standards, used where the shoulder is welded on flat steel plates rather than standard tie plates.

Mechanical Property (Cast-in)

Material	Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation (%)
QT400-15 (GGG40)	≥400	≥250	≥15
QT450-10 (GGG45)	≥450	≥310	≥10
QT500-7 (GGG50)	≥500	≥320	≥7

Chemical Composition

Material	C (%)	Si (%)	Mn (%)	P (%)	S (%)
QT400-15	3.50-3.60	3.0-3.2	≤0.5	≤0.07	≤0.02
QT450-10	3.40-3.90	2.70-3.00	0.2-0.5	≤0.07	≤0.03
QT500-7	3.60-3.80	2.50-2.90	0.3-0.6	≤0.08	≤0.025

Weld-on Rail Shoulder Details

The weld-on shoulder is produced via hot forging using low or medium carbon steel. These are particularly useful for switch and crossing layouts where vertical rail geometry is employed. Their ability to be welded in specific positions as dictated by layout designs makes them a cost-effective solution for custom rail fabrications.

Frequently Asked Questions

1. What is the primary function of a rail shoulder?

The primary function of a rail shoulder is to be cast or welded into the rail ties or base plates to provide a secure fixing point for elastic rail clips, ensuring the rail stays firmly attached to the sleeper.

2. What are the main materials used for cast-in shoulders?

Cast-in shoulders are typically manufactured from high-quality ductile iron, including grades like QT400-15, QT450-10, and QT500-7, which provide excellent tensile strength and durability.

3. What is the difference between cast-in and weld-on shoulders?

Cast-in shoulders are embedded directly into concrete sleepers during the manufacturing of the tie. Weld-on shoulders are hot-forged and then welded onto steel plates or sleepers, offering more flexibility for custom layouts.

4. Which rail types are compatible with these shoulders?

These shoulders are compatible with a wide range of international rail standards, including UIC54, UIC60, 115RE, 50kg, 60kg, BS80lbs, and BS100lbs rail profiles.

5. What international standards do the shoulders follow?

The production follows multiple global standards including GB/T 1348, ISO1038, DIN 1693, JIS G5502, and BS EN 1563, ensuring high reliability for railway infrastructure.

6. Why are weld-on shoulders preferred for switch and crossing layouts?

They are preferred because they can be welded in very specific, customized positions dictated by complex layout designs, making them highly cost-effective and versatile for non-standard rail geometry.