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Railway Accessories Rail Iron Shoulder

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Product Description

iBasic Specifications

Model NO.:shoulder

Type:Shoulder

Transport Package:Cartons, Woven-Bags or Gunny-Bags

Origin:China

HS Code:7318150000

Production Capacity:20000PCS/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, such as, GB/T 1348-1988, NF EN 1563(1997), ISO1038, DIN 1693, JIS G5502 (2001), KS D 4302, GOST 7293(1985) or BS EN 1563(1997).

Feature	Standard 1	Standard 2	Standard 3
Application	UIC54	UIC60	115RE, 50kg, 60kg, BS80lbs, BS100lbs
Material Name	QT500-7	QT450-10	QT400-15
Standard	GB 1348-88	GB 1348-88	GB 1348-89
Tensile Strength	≥500 Mpa	≥450 Mpa	≥400 Mpa
Hardness	170~230HB	160~210HB	130~180HB

✔Cast-in Rail Shoulder

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. These are available as Single Stem Iron Shoulders for pre-stressed concrete ties and Twin Stem Iron Shoulders for Bi-Block or Twin Block concrete ties.

Mechanical Properties

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	3.6-.36	3.0-3.2	0.5	0.07	0.02
Qt450-10	3.4-3.9	3.7-3.0	0.5	0.07	0.03
QT500-7	3.4-3.8	2.5-2.9	0.6	0.08	0.025

⚓Weld-on Rail Shoulder

The weld-on shoulder is used at the typical position of rail where the rail shoulder is welded on flat steel plates rather than the standard tie plate. Manufactured via hot forging and following AREA standards, these can be produced using low or medium carbon steel based on specific requirements.

They are particularly effective for longer steel sleeper sections or bearers, especially in switch and crossing layouts where vertical rail geometry is employed, offering a cost-effective fabrication solution.

?Frequently Asked Questions

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

A rail shoulder is a semi-embedded part used in railway fastening systems to secure elastic rail clips, which in turn hold the rail firmly to the concrete ties or base plates.

2. What are the differences between cast-in and weld-on shoulders?

Cast-in shoulders are embedded directly into concrete sleepers during the casting process. Weld-on shoulders are forged and then welded onto steel plates or sleepers, making them more flexible for custom layouts.

3. Which materials are used for manufacturing rail shoulders?

Casting shoulders are typically made from ductile iron (such as QT400-15, QT450-10, or QT500-7). Weld-on shoulders are usually hot-forged from low or medium carbon steel.

4. Can rail shoulders be used for different rail types?

Yes, they are compatible with various international standards including UIC54, UIC60, 115RE, and various BS (British Standard) rail profiles.

5. What is the production capacity for these rail accessories?

The current production capacity is approximately 20,000 pieces per day, ensuring a steady supply for large-scale railway construction projects.

6. Are there specific standards for the chemical composition of these shoulders?

Yes, production follows strict international standards such as GB/T 1348, ISO1038, and DIN 1693 to ensure the correct balance of Carbon, Silicon, Manganese, and other elements.