Stainless Steel + Copper

Weldability of the material and electrode material (guideline)

Weldability Very bad
Upper Electrode Cu-Cr-Zr (Equivalent to RWMA-2)
Lower Electrode W100% (Equivalent to RWMA-13)
Mo100%
Special Note Possible to weld under a special condition.
Not enough welding strength.
Generating a stick instead of a nugget.

Physical Property

SUS Stainless Steel
(Ni) Melting Point ≈1449℃
Electrical Resistivity 72×10-8Ω・m
Thermal Conductivity ≈16.7 W/(m・K)
Cu Copper
Melting Point 1084℃
Electrical Resistivity 1.7×10-8Ω・m
Thermal Conductivity 401 W/(m・K)