Corrosion resistance of stainless steel flange

The stainless steel flange connection is to fix two pipes, pipe fittings or equipment on a flange plate respectively, add flange pads between the two flange plates, and fasten them together with bolts to complete the connection. The stainless steel flange connection is easy to use and can withstand greater pressure. In industrial pipelines, flange connections are widely used. In the family, the pipe diameter is small and low pressure, and the flange connection is not visible. The stainless steel flange piece is suitable to increase the corrosion resistance and weldability. Appropriate amount of stability elements Ti, Nb, Mo, etc. are added. The weldability is better than that of the chromium stainless steel flange. a little better. When using the same type of chromium stainless steel flange electrode (G302, G307), preheating above 200℃ and tempering treatment at about 800℃ after welding should be carried out. If the weldment cannot be heat treated, stainless steel flange pipe welding rods (A107, A207) should be used.