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CENTRO MN13
Monoblock made of austenitic high-manganese steel (AMS) with welded-on legs
The complete central part of the crossing is cast in one high-manganese steel block. This part is similar to a monoblock crossing, with the exception of the fishing table lengths. At the four ends, closure rails (made from standard rail sections) are welded to the central block by the flash-butt welding process (intermediate piece welding) patented by VAE and proven worldwide. These weldings are subjected to ultrasonic tests. The supporting surfaces (plate bearings) as well as the complete running edges and surfaces are milled.
Advantages
- Can be thermit welded into the track
- Requires little maintenance because no bolts are used
- Excellent wear resistance due to work-hardening process of AMS
- Optimized wheel transfer conditions
- Guaranteed exchangeability
- Suitable for curved turnouts
- Built-up and repair welding possible without pre-heating
- Suitable for all types of rail fastenings
- Reduced maintenance, particularly for high axle loads because the running surface can be pre-hardened
Technical characteristics:
| Material grades: Crossing | High-manganese steel according to UIC 866 |
| Closure Rails | Either S900 according to UIC 860 and 260 as per CEN or S900A head-hardened (HSH) and 350HT as per CEN Special grades on request |
Example of use for manganese cast in rigid crossings
