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SUYU specialize in producing rail fastening , rail shoulders are our main products , they are produced both in casting and forging , below is some of our main products .
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. Weld-on 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 .
As a leading manufacturer of rail fastening in China , SUYU also can produce many other railway fasteners , such as track bolt . Sleeper screw . rail anchor .rail joint bar . tie plate .rail clips ,elastic rail clip .SKL tension clamp and so on .
Sticking to the “quality first” policy, SUYU pays great attention to quality control management. We have granted ISO9001-2000 certificates and have got the production license of China’s Railway Ministry on railway products. We have a full set of inspection instruments which makes sure all the products produced by us should be of high quality and up to customers’ requirements.
SGS Certificate
Audited Supplier Certificate
Factory
Inspection Centre
Heat Treatment Line
Casting rail shouder/Weld on shoulder
