Copper alloy and brass wires and brazing alloy and Ag-brass alloy 1) Type ... Usage:HS210: Suited For gas welding, oxy-acetylene brazing and /or welding as well as argon arc welding ... about 890 degree centigrade. Suited for welding and /or brazing copper, steel , nickel copper alloy , grey cast iron ... : Suited for gas flame and / or high frequency brazing copper, steel, nickel copper alloy, grey cast iron ...