Welding Copper With Stainless Steel. I am very close to a full weld without cracking about a 90 percent arc without cracking. Ad Overhead Ambient or Portable.
Problems occur if the joint is designed where the weld energy comes through the copper first. Welding and Brazing Copper-Nickel to Austenitic Stainless Steel 1. Why you ask.
In comparison to stainless steel copper is an ancient metal with both a high level of thermal conductivity and a high coefficient of thermal expansion to match which means that this metal is prone to distortion and other defects under the welding torch.
The melting point C specific heat calgdegC and thermal conductivity calcmsecdegC of copper and stainless steel are 1084 009 20 C 094 20 C and 1400 0118 20 C 0035 20 C respectively. So can copper and stainless steel be welded together. Copper being a great conductor of heat tends to require a significant amount of welding energy before it melts. SES W14-F01 is a part of this standard.