RAIL CAST IRON SHOULDER The rail cast iron shoulder or shoulder is a semi-embedded part into the sleeper to fasten the clip to the base plate, and protect the clip from being stolen. We could supply different types of shoulders satisfying clients' needs. Rail shoulder material technical parameter There are various kinds of Rail Elastic clips material could be chose according to customer's requirements. Normally TEDRAIL could offer following materials:
| Rail shoulder material technical parameter |
| Material |
Material Chemical Composition% |
Tensile Strength(Mpa) |
Yield Strength(Mpa) |
Elongation(%) |
| C |
Si |
Mn |
P |
S |
| QT400-15(GGG40) |
3.6-.36 |
3.0-3.2 |
0.5 |
0.07 |
0.02 |
400 |
250 |
15 |
| QT450-10(GGG45) |
3.4-3.9 |
3.7-3.0 |
0.5 |
0.07 |
0.03 |
450 |
310 |
10 |
| QT500-7 (GGG50) |
3.4-3.8 |
2.5-2.9 |
0.6 |
0.08 |
0.025 |
500 |
320 |
7 |
Casting shoulders are pressed in concrete sleeper and assembled with E clip in order to fasten the rail. The material we use is cast iron and the mechanical property and chemical composition of the rail cast iron shoulder are shown 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 |
Hot forging shoulder, 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.
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