railroad construction Cast Iron railway shoulders railway parts weld on
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:
Technical Specifications
| Brand | ZhongYue |
| Product | Railway iron shoulder |
| Application | UIC54 | UIC60 | 115RE,ect |
| Material |
| Name | QT500-7 | QT450-10 | QT400-15 |
| Standard | GB 1348-88 | GB 1348-88 | GB 1348-89 |
| Chemical composition(%) | C:3.60-3.80 | C:3.40-3.90 | C:3.50-3.60 |
| Mn:≤0.6 | Mn:0.2-0.5 | Mn:≤0.5 |
| Si:2.50-2.90 | Si:2.70-3.00 | Si:3.0-3.2 |
| P:≤0.08 | P:≤0.07 | P:≤0.07 |
| S:≤0.025 | S:≤0.03 | S:≤0.02 |
| Tensile Strength | ≥500 Mpa | ≥450 Mpa | ≥400 Mpa |
| Yield Strength | ≥320 Mpa | ≥310 Mpa | ≥250 Mpa |
| Elongation(%) | ≥7 | ≥10 | ≥15 |
| Hardnrss | 170~230HB | 160~210HB | 130~180HB |
| Metallographic organization | ferrite + pearlite | graphite + ferrite + pearlite | ferrite |
| Surface | plain (oiled)
|
Comparing Chart For Material:
| | GB | DIN | NF |
| 1 | QT400-15 | GGG-40 | EN-GJS-400-15 |
| 2 | QT400-18 | | EN-GJS-400-18 |
| 3 | QT450-10 | | EN-GJS-450-10 |
| 4 | QT500-7 | GGG-50 | EN-GJS-500-7 |
Samples Show:
