Basic Information
Model NO.
QT450-10 QT500-7 Embedded Rail Shoulder
Certification
ISO14001, ISO9001
Transport Package
Cartons, Woven-Bags or Gunny-Bags in Wooden Cases
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.
| Application |
UIC54 |
UIC60 |
115RE, 50kg rail, 60kg rail, BS80lbs, BS100lbs, ect. |
| 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 |
Types of Rail Shoulder
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 of rail shoulders available: 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 |
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, it is fabricated according to AREA standard. The steel material type for weld-on shoulders production can be low or medium carbon steel.
Frequently Asked Questions (FAQ)
Q1: What are the primary functions of a rail shoulder?
Rail shoulders are embedded in concrete ties to provide a secure anchoring point for elastic rail clips, which in turn fasten the rail to the sleepers.
Q2: What materials are typically used in the production of cast-in rail shoulders?
They are generally made from high-quality ductile iron, specifically grades like QT400-15 (GGG40), QT450-10 (GGG45), and QT500-7 (GGG50), adhering to international standards such as ISO1038 and DIN 1693.
Q3: How does a weld-on shoulder differ from a cast-in shoulder?
A cast-in shoulder is embedded directly into concrete sleepers during casting, whereas a weld-on shoulder is welded onto flat steel plates or sections, offering flexibility for custom layouts like switches and crossings.
Q4: What standards do these rail shoulders comply with?
Our products are manufactured to meet various global standards including GB/T 1348, NF EN 1563, ISO1038, DIN 1693, and BS EN 1563, ensuring high reliability and performance.
Q5: What is the production capacity for rail shoulders?
The current production capacity is approximately 20,000 pieces per day, allowing for the fulfillment of both large-scale infrastructure projects and smaller custom orders.
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