Railway Accessories Rail Iron Shoulder

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Basic Specifications

Model NO.

Shoulder

Type

Shoulder

Transport Package

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

Origin

China

HS Code

7318150000

Production Capacity

20000PCS/Day

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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).

Parameter	UIC54	UIC60	Others
Application	UIC54	UIC60	115RE, 50kg rail, 60kg rail, BS80lbs, BS100lbs, etc.
Material Grade	QT500-7	QT450-10	QT400-15
Standard	GB 1348-88	GB 1348-88	GB 1348-89

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Types of Rail Shoulder Produced

The Rail shoulder is semi-embedded part cast in the concrete rail ties to fix the elastic rail clip to the base plate. There are two common types: Cast-in Shoulder and Weld-on Shoulder. One is Single Stem Iron Shoulder used in pre-stressed concrete ties and the other is Twin Stem Iron Shoulder used in Bi-Block or Twin Block concrete ties.

Cast-in Rail Shoulder Mechanical Property

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

Cast-in Rail Shoulder Chemical Composition

Material	C	Si	Mn	P	S
QT400-15	3.6-3.6	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

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Weld-on Rail Shoulder

The weld-on shoulder is used at the typical position of rail where the rail shoulder is weld on flat steel plate rather than the standard tie plate. The weld-on shoulder production method is hot forging, fabricated according to AREA standard. The material used is low or medium carbon steel.

These shoulders can be welded onto longer length steel sleeper sections or bearers, making them particularly useful and cost-effective for switch and crossing layouts where vertical rail geometry is employed.

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Frequently Asked Questions

What is the primary function of a rail shoulder?

The rail shoulder serves as a semi-embedded or welded anchoring point designed to secure elastic rail clips, which in turn hold the rail firmly to the sleeper or base plate.

Which materials are commonly used for cast-in shoulders?

Cast-in shoulders are typically manufactured from high-quality ductile iron grades such as QT400-15, QT450-10, and QT500-7, complying with international standards like GB, DIN, and ISO.

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

Cast-in shoulders are embedded directly into concrete sleepers during the casting process. In contrast, weld-on shoulders are forged from carbon steel and are welded onto flat steel plates or sleepers.

Can these shoulders be used for custom rail layouts?

Yes, weld-on shoulders are especially versatile for custom fabrication, such as in switch and crossing layouts where they can be placed exactly according to the design requirements.

What production standards do your rail shoulders meet?

Our rail shoulders are manufactured to meet various global standards including GB/T 1348-1988, NF EN 1563, ISO1038, DIN 1693, JIS G5502, and AREA standards for forged components.

What is the daily production capacity for rail shoulders?

The current production facility has a capacity of approximately 20,000 pieces per day, ensuring reliable supply for large-scale railway projects.