Railway Casting Rail shoulder
1. Casting shoulders are pressed in concrete sleeper and assembly with E clip in order to fasten the rail ,
the normal material we use is casting iron, the mechanical property and chemical composition are below :
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 |
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 |
2. Rail shoulders are produced by hot forging, which used together with clip bolt and special rail clip to
fix the rail , the material can be low carbon steel and mid carbon steel according to our customers' requirement .
3. Weldon shoulder is used for the typical position of rail , it is welded on flat steel plate instead of the standard
tie plate , which produced according to AREA standard .
