Precautions for welding of carbon steel elbow

Precautions for welding of carbon steel elbow

The production of carbon steel elbow mainly produces a variety of different types and materials of carbon steel elbow products, in the production of advanced technology and manufacturing process processing molding, generally used in the manufacturing process is stamping forming, stamping forming elbow pipe fittings in welding should pay attention to:

The national standard carbon steel elbow pipe fittings are the most used materials and standards in pipeline connection. The National standard carbon steel elbow pipe fittings have long service life, corrosion resistance and high temperature resistance in the process of use. The common connection of carbon steel elbow in pipe connection is usually direct welding, which is easy to operate and install in the welding process.

After stamping elbow welding hardening is larger, easy to crack. If the same type of stamping elbow welding is used, it is necessary to preheat more than 300℃ and slow cooling treatment about 700℃ after welding. If the weldment cannot be heat treated after welding. Stamping elbow electrode should be selected.

Carbon steel elbow In piping systems, a bend is a pipe fitting that changes the direction of the pipe. According to the Angle, there are 45° and 90°180° three commonly used, in addition, according to the needs of the project also includes 60° and other abnormal Angle elbow. Elbow materials include cast iron, stainless steel, alloy steel, calcined cast iron, carbon steel, non-ferrous metal and plastic, etc. The connection mode with the pipe includes: direct welding (common way) flange connection, hot melt connection, electric melt connection, thread connection and socket type connection. According to the production process, it can be divided into: welding elbow, punching elbow, hot pressing elbow, push elbow, casting elbow, forging elbow, clamping elbow, etc. Other names: 90° elbow, right Angle bend, love and bend, white steel bend, etc.