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Aluminum & Copper Alloys

ERCuSn-A

ERCuSn-A is copper-tin phosphor bronze solid welding wire. Contains 4.0~6.0% tin and phosphorus as deoxidizer. Suitable for GMAW(MIG/MAG) & GTAW(TIG).

ERCuSn-A is copper-tin phosphor bronze solid welding wire. Contains 4.0~6.0% tin and phosphorus as deoxidizer. Suitable for GMAW(MIG/MAG) & GTAW(TIG).
Mechanical Properties of Deposited Metal
Tensile strength: 260~340 MPa
Elongation: 20~25 %
Brinell Hardness: 75~90 HB

Features

· Tin alloy improves weld wear resistance & corrosion resistance; phosphorus acts as deoxidizer for cleaner weld.
· Good fluidity, excellent wetting, easy operation for bronze casting repair.
· Color matching well with tin bronze / phosphor bronze base material. ⚠️ Wider crystallization temperature range brings slight hot cracking tendency; keep small weld pool & shorten welding time.
Application
Welding tin bronze, phosphor bronze, brass castings
Welding brass to steel, copper alloy casting repair
Surfacing low-load wear parts: bushings, bearings, valve components
Can weld pure copper (acceptable tin content in weld metal)

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