BS EN 15689:2009 Railway applications — Track — Switches and crossings — Crossing components made of cast austenitic manganese steel
The scope of BS EN 15689 is:
- To establish material requirements for cast austenitic manganese steel for fixed crossings and cradles forcrossings with moveable parts designed to be welded or bolted to rails
- To formulate codes of practice for inspection, testing of un-machined and machined heat-treated castings;
- To list the methods by which crossings should be identified and traced
- To define limits of weld rectification by the supplier;
Special requirements for pre-hardened crossings.
Geometrical aspects, as machining tolerances and inspection of finished crossings are covered in BS EN 13232-6 and BS EN 13232-7 and therefore not in BS EN 15689.
BS EN 15689 specifies the minimum requirements for cast manganese crossing components. Special applications (for instance tram systems) can require different demands in certain paragraphs and need to be agreed between customer and supplier.
Contents of BS EN 15689:
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Quality systems
5 Sample approval
6 General requirements
7 Acceptance tests
8 Additional requirements for pre-hardened crossings
9 Weld rectification of surface discontinuities
10 Identification and marking
11 Documentation
12 Non-common cast manganese crossings
Bibliography
