Can stainless steel be used as welding head?

Stainless steel is almost non-stick. It can't be tinned, and perhaps metal materials with poor heat transfer effect can't be used as soldering iron. The disadvantage of stainless steel is that it conducts heat slowly and does not stick tin even when it is hot. Can't weld. The reason why stainless steel is stainless steel is that its appearance is always in a passive state, and the flux will not activate it, so it will not stick to tin. Generally, stainless steel solder is plated with a solderable coating, such as copper, nickel or nickel-phosphorus alloy. Due to the characteristics of stainless steel, solder is generally not accepted. If welding must be done with solder, stainless steel must be treated before welding. 

Generally, the surface is eroded by acidic solution, which makes the smooth surface become uneven. Small pits (visible under the microscope), it is necessary to brush a layer of solder paste first, and then solder with tin wire. Stainless steel flux. When applying the flux, please pay attention to the application area as much as possible, because the flux is applied to the place where the solder will flow. Flux is highly corrosive, so it should be used safely. 

After human contact, rinse with water. After the stainless steel solder melts the tin wire through the melting point of the tin wire, the liquid tin flows into the concave-convex surface of the stainless steel after being eroded by the acidic solution, and is firmly adhered to, and the two are not combined.