Welding between stainless steel and copper
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The built-in booster in low-temperature insulated gas cylinders is made of TP2 copper tubes, while its outlet pipes are made of stainless steel. What method can be used to weld them together so that they can withstand certain pressure? Thank you, friend!
Just use copper powder and copper welding wire for copper brazing
Using silver brazing wire containing 25% silver for brazing will suffice; it can withstand a pressure of around 50-60 kilograms without any problems.
We have done it using TIG welding with pure Ni wire, and we have also tried the silver brazing mentioned above
Flame brazing using silver solder. . . It can withstand pressure.
Copper and nickel are infinitely miscible, and the welding quality between nickel and stainless steel is guaranteed; therefore, it is recommended to use pure nickel welding wire.
Thank you so much to my friends for their help! Thank you!
Nickel can be tried; silver is suitable for brazing