Qt400-15 (GGG40) Qt450-10 (GGG45) Qt500-7 (GGG50) Embedded Rail Shoulder

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Product Description

📋 Basic Information
Model NO.
QT450-10 QT500-7 Embedded Rail Shoulder
Customized
Customized
Certification
ISO14001, ISO9001
Type
Shoulder
Transport Package
Cartons, Woven-Bags or Gunny-Bags in Wooden Cases
Origin
China
HS Code
8602900000
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).
Rail Shoulder Type 1
Rail Shoulder Type 2
Rail Shoulder Type 3
📊 Technical Specifications
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
C (%) 3.60-3.80 3.40-3.90 3.50-3.60
Mn (%) 0.2-0.5 ≤0.5 ≤0.5
Si (%) 2.50-2.90 2.70-3.00 3.0-3.2
Tensile Strength ≥500 Mpa ≥450 Mpa ≥400 Mpa
Hardness 170~230HB 160~210HB 130~180HB
⚙️ Types of Rail Shoulder
The Rail shoulder is a semi-embedded part cast in concrete rail ties to fix the elastic rail clip to the base plate. We produce two common types: Cast-in Shoulder and Weld-on Shoulder.
Cast-in Rail Shoulder: Pressed into concrete sleepers to work with E-clips. Made from high-grade casting iron according to international standards like ISO1038 and DIN 1693.
Weld-on Rail Shoulder: Used where the shoulder is welded onto flat steel plates. Produced via hot forging using low or medium carbon steel, according to AREA standards. This type is highly cost-effective for switch and crossing layouts.
Weld-on shoulder 1
Weld-on shoulder 2
Weld-on shoulder 3
Weld-on shoulder 4
Weld-on shoulder 5
Weld-on shoulder 6
Weld-on shoulder 7
Weld-on shoulder 8
Weld-on shoulder 9
💪 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
Frequently Asked Questions
1. What is the primary function of a rail shoulder? Rail shoulders are embedded in concrete ties to provide a secure anchoring point for elastic rail clips, ensuring the rail stays firmly attached to the sleeper.
2. What are the differences between Cast-in and Weld-on shoulders? Cast-in shoulders are integrated directly into concrete sleepers during casting, while Weld-on shoulders are welded onto steel plates or sleepers, often used for custom rail geometries.
3. Which materials are used for manufacturing these shoulders? We typically use Ductile Iron (such as QT400-15, QT450-10, QT500-7) for cast-in shoulders and low to medium carbon steel for weld-on types.
4. Can rail shoulders be customized? Yes, we provide customized rail shoulders based on specific drawing requirements and rail types like UIC54, UIC60, and 115RE.
5. What quality standards are followed during production? Our production adheres to international standards including ISO9001, GB/T 1348, DIN 1693, and BS EN 1563 to ensure mechanical integrity and durability.
6. What is the daily production capacity for rail shoulders? We have a robust production capacity of approximately 20,000 pieces per day to meet large-scale railway construction needs.

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