Application of stamping elbow

There are many types of stainless steel stamping elbow; chrome stainless steel stamping elbow has certain corrosion resistance (oxidizing acid, organic acid, cavitation), heat resistance and wear resistance. Usually used for power station, chemical, petroleum and other equipment materials. The weldability of chrome stainless steel stamping elbow is poor. Pay attention to the welding process, heat treatment premise and select the appropriate welding electricity.

Chrome-nickel stainless steel stamping elbow has good corrosion resistance and oxidation resistance, and is widely used in chemical, fertilizer, petroleum, medical machinery manufacturing. When welding chromium-nickel stainless steel stamping elbow, carbides will precipitate due to repeated heating, so that Corrosion resistance and mechanical properties are reduced. The coating of chrome-nickel stainless steel stamping elbow is titanium calcium type and low hydrogen type.

Titanium-calcium type can be used for AC and DC, but the welding depth is shallow during AC welding, and it is easy to turn red. Therefore, use DC power source for stainless steel stamping elbow as much as possible. Chrome 13 stainless steel stamping elbow has higher hardenability after welding. And easy to crack. If the same type of chrome stainless steel stamping elbow is used for welding, it is preheated to above 300 ° C and slowly cooled to about 700 ° C after welding.