Forging flange connection is to put two pipes, pipe fittings or equipment, and forging flange connection is an important way of pipeline construction.
The forging flange connection is convenient to use, can withstand the bigger pressure. In the industrial pipeline, the use of forging flange connection is very widespread. In the home, the pipe diameter is small, and is low pressure, can not see the connection flange stamping elbow. If you're in a boiler room or a production site, there are flanged pipes and equipment everywhere. Chromium content 0.1% ~ 0.5% (forging flange generally does not contain chromium) , carbon content is less than 1.0% and forging flange is made by high temperature forging, although the surface hardness (HRC) of some forged flanges can reach more than 56(the hardened layer is only about 15 mm) , the hardness of the core of forged flanges is usually only more than 30 degrees because of poor hardenability, under normal conditions, the forging flange is often treated by water quenching.
