Stainless steel clad plate is a kind of clad plate that is made of stainless steel as the cladding layer and ordinary low-alloy steel as the base layer, which is combined into one through the explosion, rolling, and other methods. The stainless steel clad plate has both the corrosion resistance, wear resistance, and antimagnetic properties of the stainless steel cladding, and also has the good mechanical properties and welding properties of the base material. Moreover, compared with clad stainless steel materials, most of the materials of stainless steel clad plates are lower-priced base-level low-alloy steels. When the thickness of the plates exceeds a certain range, stainless steel materials can be saved and economic benefits can be brought about. Therefore, stainless steel clad plates have been widely used in the field of pressure vessel manufacturing.
Steel plates with different thicknesses are different in terms of rolling process and mechanical properties, so the price will also be different. At present, 90 percent of stainless steel clad steel plates in my country are manufactured by the explosive cladding method. The production process is to overlap the stainless steel plates on the carbon steel substrate, space a certain distance between the stainless steel plate and the carbon steel substrate with a cushion, and spread explosives on the stainless steel plate. , The energy of the explosive explosion makes the stainless steel plate hit the carbon steel substrate at a high speed, producing high temperature and high pressure to realize the solid-phase welding of the interface of the two materials. The explosion composite process will cause vibration, noise, and smoke pollution to the environment, but the equipment investment is small, and there are hundreds of domestic explosion production plants.
The economic analysis results of the explosion stainless steel clad plate relative to the pure stainless steel plate:
(1) When the design temperature is less than 400 degree , the thickness critical point of pure stainless steel is not much different. When the temperature exceeds 400 degree , the thickness critical point will be greatly improved. The reason is that the allowable stress of carbon steel material decreases by nearly half when the temperature is from 400 to 450 degree , while the allowable stress of stainless steel material does not decrease significantly at this time.
(2) When the price of stainless steel is high, the critical point of thickness is lower than when the price of stainless steel is low. The reason is that the proportion of explosion cost in the cost of stainless steel material decreases, so the critical point of thickness is low.
(3) Different cladding thicknesses also have an influence on the curve. When the cladding thickness increases, the critical point of pure stainless steel thickness increases as a whole under the same conditions. The reason is that the cost of cladding materials increases, which increases the overall material cost of the composite board and reduces the economy of the composite board.
Baoji Taicheng Metal Co., Ltd is a metal clad plate manufacturer. We can provide all kinds of customized metal clad plates according to customer requirements, and provide you with the best stainless steel clad plates. This is our service tenet. Your consultation is welcome!
