BS 5892-7:2014
Railway rolling stock materials Specification for product and technical approval requirements for cast wheels
| Označení normy: | BS 5892-7:2014 |
| Počet stran: | 62 |
| Vydáno: | 2015-04-30 |
| ISBN: | 978 0 580 89910 2 |
| Status: | Standard |
BS 5892-7:2014
This standard BS 5892-7:2014 Railway rolling stock materials is classified in these ICS categories:
- 45.040 Materials and components for railway engineering
This British Standard specifies the characteristics of, and technical approval requirements for, cast railway wheels for conventional rail operation. It can be applied in conjunction with BS or BS EN standards for axles and wheelsets. This standard is not applicable to urban rail.
Three steel grades, C48, C56 and C64, are defined in this standard.
For the purpose of this British Standard, the steels referred to as C48, C56 and C64 are based on those defined as AAR Class L, A and B respectively.
This British Standard is applicable to cast wheels which are rim-chilled and have their wheel webs shot peened.
'Rim-chilled' is a heat treatment of the rim, the aim of which is to harden the rim and to create compressive residual stresses in the rim.
Cast wheels are shot peened to improve the web fatigue strength.
The wheels defined in this British Standard are for applications up to 120 km/h (i.e. 75 mph).
It only applies to wheels of new design or new application.
These requirements are intended to be used to assess the validity of the design choice for the proposed use and constitute the technical approval procedure.
This British Standard does not cover assessment of the hub nor of the static mechanical dimensioning of the wheel.