BS EN 16725:2016 PDF Download

BS EN 16725:2016 is a European Standard that specifies the requirements for the restoration and repair of manganese crossings used in railway tracks. It covers both fixed crossings and cradles for crossings with movable parts, which are designed to be flash butt welded or bolted to adjoining rails. The standard also applies to flash welded leg ends of austenitic manganese steel crossings and the associated tri-metal zone.

The standard outlines the approval systems for consumables and procedures used in manual metal arc and flux cored metal deposit repair welding. It includes the tasks and responsibilities related to quality and the qualifications required for personnel involved in electric arc repair welding of cast crossings.

BS EN 16725:2016 primarily focuses on two permitted welding processes: Electric Arc (EA), specifically Process No 111: MMA (Manual Metal Arc) and Process No 114: FCAW (Flux Cored Arc Welding), as defined in EN ISO 4063. The standard describes the applications of these processes.

This standard can be applied for repairs carried out in various settings, such as at the trackside, at out-of-track locations, or in situ. Its purpose is to establish a unified approach to the restoration of cast manganese crossings using electric arc welding techniques across Europe. The standard provides control systems for the approval and qualification of welding processes, welding procedure specifications (WPS), welding consumables, contractors, and welders to ensure successful welds on crossings in service.