Mig Welding Copper To Stainless Steel

Choose from various diameters of wire for different welders and welding projects.

Mig welding copper to stainless steel.

On its own stainless steel is not a problem to weld. He recommends a 75 25 argon helium mix. Solid stainless steel welding wire is well solid. It tends to stack and not flow out to the edges of the weld.

Properties of steel and copper during welding. The oxides burn away and the copper will wet to the metal. But it s an important point. The reason for more heat required on stainless steel is you have to remove the chromium oxides on the surface that give stainless it s corrosion resistance.

Spray arc short circuiting or pulsed arc transfer. A good weld bead. Not surprising considering that our mig s use 75 25 carbon dioxide for steel and aluminum welds best with straight argon. And to weld with stainless steel mig wire you ll need to use shielding gas.

Forums welding techniques tig welding tig brazing stainless steel. When mig welding on stainless you usually have three choices of transfer depending on your equipment. If the oxides do not burn away. Mig welding is useful because you can use it to weld many different types of metals.

Alternative gases that you can use are 98 argon and 2 co2 or 98 argon and 2 oxygen mix. Stainless steel mig welding wire. Stainless steel melts at around 1400 c while copper melts at 1085 c that s a difference of 315 c this makes forming a puddle of the two metals extremely difficult. There s just pure stainless steel in it.

It will weld with straight argon but not as well. Grainger carries a large stock of mig welding wire and flux core welding wire to meet your welding needs including aluminum carbon steel copper coated mild steel stainless steel and more. Here are some advantages to mig welding. The ability to join a wide range of metals and thicknesses.

That gas is typically tri mix. Here is the key to successful copper welding he said. Steel is also highly anti corrosive hence the title stainless. Spray arc transfer filler metals for gas metal arc welding stainless steel are specified in aws a5 9 93.

Then there s the metallurgical issues of. First up the two metals have substantially different melting points. Stainless steel is a popular metal in welding for many reasons it s very strong it s ductile and it s easy to weld especially in comparison to many other kinds of metal. Sounds obvious i know.

Plus some stuff to make it easy to weld with. There are two issues with welding copper and stainless steel. Click here to view full size acrobat pdf file.