Precautions for use of carbon steel flange：

First of all, we don't put the carbon steel flange in damp places, because of the carbon steel and water after a long time will rust, the surface will have change, a corresponding changes of mechanical properties, it will bring trouble to our use of, so we want to avoid as far as possible, then we don't use something hard collision carbon steel flange itself, make carbon steel flange surface scars, Serious injury to the sealing surface will make the later sealing is not too strong!

Carbon steel flange as it is a connecting piece, mainly by the carbon steel flange and the end of the flange is connected to a device, its connection function or has certain characteristics, it is just a device connecting the carbon steel flange and the end of the flange. Forged flange piece and forged flange piece compared to the forging is better, cast flange piece, blank shape and size is accurate, processing volume is relatively small, the cost is very low, but the forging flange piece defects (pores. Cracks. Inclusions); The internal organization of the casting is poorly streamlined (if it is a cutting part, the streamlining is worse); Forged flange is generally lower carbon than forged flange and is not easy to rust. The streamlining of the forging is very good, the organization is relatively dense, and the mechanical properties are better than forged flange. Forging process improper processing will also appear grain size or uneven, hardening crack phenomenon, forging cost is much higher than forging flange. Flanges are connected by thread (wire connection) flange, welding flange and clamp flange. Flanges are used in pairs, wire flanges can be used for low pressure pipes, welding flanges can be used for pressure over 4 kg. Add a sealing point between the two flanges and tighten with bolts. Flanges of different pressures have different thicknesses and use different bolts.