Large diameter carbon steel flange market analysis
Release time:
2016-10-15
Stainless steel flanges are common in pipeline construction projects, with high strength, stable performance, not easy to corrode, and strong durability. Stainless steel bolts are not necessary for stainless steel flanges. Stainless steel bolts are selected for ease of disassembly (carbon steel is easy to rust), and can also be selected in some non-hot work or other special occasions. The material of bolts has nothing to do with the material of flanges. The European system is HG20614-97 in accordance with the HG20613-97 Fasteners for Steel Pipe Flanges (European System), and the American system is in accordance with the HG20634-97 Steel Pipe Flanges
Stainless steel flanges are common in pipeline construction projects, with high strength, stable performance, not easy to corrode, and strong durability.
Stainless steel bolts are not necessary for stainless steel flanges. Stainless steel bolts are selected for ease of disassembly (carbon steel is easy to rust), and can also be selected in some non-hot work or other special occasions. The material of bolts has nothing to do with the material of flanges. The European system follows the HG20613-97 Fasteners for Steel Pipe Flanges (European System) HG20614-97 the Selection of Gasket Fasteners for Steel Pipe Flanges (European System). The American system is selected in accordance with the HG20634-97 "Fasteners for Steel Pipe Flanges (American System)" HG20635-97 "Selection of Gasket Fasteners for Steel Pipe Flanges (American System)". Stainless steel flanges are usually selected with special grade 35CrMoA to meet the requirements.
Widely used in food, environmental protection, light industry, petroleum, paper, chemical industry, electric power and other industries in the industrial automatic control system.
Due to the insufficient specific pressure or holding time of the forged flange, the forged flange is under the condition of free crystallization, resulting in shrinkage cavity. At the same time, the gas content is high. In the forging process, the precipitated gas enters the shrinkage cavity, and cracks exist in the matrix around the shrinkage cavity. Therefore, to prevent the above situation of the flange, the key is to choose the right pressure and holding time.
Changzhou Wujin Second Flange Forging Co., Ltd. specializes in producing large diameter flanges
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Changzhou Wujin Second Flange Forging Co., Ltd
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