Class: ERCuSi-A

AWS: A5.7

Conforms to Certification: AWS – 5.7                         ASME SFA  A5.7

Silicon Bronze: Tig Welding Process (GTAW)

Application
Use for welding of Silicon Bronze Copper, or Aluminum Bronze of low aluminum content. It can also be used for brazing malleable iron and light gauge steel.

Deposited Chemical Composition % (Typical)
Dependent on weld process

(Nominal) All Weld Metal Properties Requirements
Tensile Strength                                          50,000psi

Preheat / Interpass Recommendations
When working with silicon bronze base metal keep the inter-pass temperature below 65° C to minimize hot cracking. Base metals of cast iron may need a preheat of 315° C while copper may need 200-400° C.