How to weld SS 316 to Copper

[ishtechmech]

Please suggest how to weld SS 316 to Copper

 

[weldstan]

Is this pure copper or an alloy?

 

[weldstan]

What's the thickness and shape of the copper/copper alloy and is the copper a grounding wire?

 

[gtaw]

Copper and ferrous alloys don't play together nicely. Copper has very low solubility in iron and tends to crack during solidification or when subjected to bending. You may be able to braze that combination, but a fusion weld, not likely to pass a standard guided bend test as required by ASME Section IX or AWS B2.1 or NAVSEA TP248.

At least that's been my experience.

Best regards - Al

 

[weldstan]

ishtechmech,
Since you have not bothered to reply, take gtaw's advice. Brazing can be done or use mechanical connection. A fusion weld could be made with extreme difficulty; however, based on your question, you would no way be able to qualify such a weld.