With the development of industrial technology, for the performance of the material put forward higher and more stringent requirements. In many cases, a single metal or alloy is very difficult to meet the requirements of industrial production of materials comprehensive performance. Stainless steel composite panels can integrated the advantages of each component in design and make up for their shortcomings, so it is a x70 line pipe single metal or alloy incomparable excellent comprehensive performance.
Stainless steel composite board is made up of stainless steel and carbon steel or low alloy steel bimetal. Corrosion resistance of stainless steel layer that strength is mainly composed of carbon steel or low alloy steel layer, can save a lot of stainless steel, with good economic value. Stainless steel composite board because of its good comprehensive performance and price advantage, is widely used in aerospace, petroleum, chemical, shipbuilding, electric power, metallurgy, machinery, nuclear energy and other fields.
Stainless steel composite panels composed of coating and base. The chemical and physical properties of their difference is very big, use performance is different also. In order to guarantee the comprehensive performance of composite plate welding after the original, grassroots, cladding layer and transition layer must be according to its material and the requirement for welding respectively. At the grass-roots level generally choose uns c68700 low carbon steel or low alloy steel, good weldability. When the welding at the grass-roots level, should be based on the principles of equal strength select welding material. Cladding material generally for austenitic stainless steel, has a good welding performance. The choice of welding material mainly meets the special performance requirements, the chemical composition of the principle of matching and meet the requirements of corrosion resistance.
Stainless steel composite panels at the grass-roots level and cladding layer transition joint welding of dissimilar metals welding. Differences in the physical properties of the two materials, welding metallurgy reaction process is complex, directly affect the success or failure of the welding process. During the transition layer during the welding process, in addition to solve the weld crystal crack and heat affected zone of liquefied defects such as cracks and the fusion zone embrittlement, more important is to reduce the mutual diffusion between cladding layer and the base and penetration. Transition layer type high cr-ni welding materials should be adopted, to supplement the grassroots dilution of the cladding layer and the welding process of alloy element loss, ensure the corrosion resistance of cladding layer.
Has the corrosion resistance of stainless steel, stainless steel clad plates and carbon steel good mechanical strength and processing performance. This is a new kind of industrial products. Stainless steel composite board has been widely used in uns c70600 petroleum, chemical industry, salt industry, water conservancy and electric power industry. Stainless steel composite panels, as a kind of resource saving, can reduce the dosage of the precious metal, reduce project cost.
Stainless steel composite board is made of stainless steel cladding and carbon steel matrix composite panels. Its main characteristic is metallurgical combination of carbon steel and stainless steel form strong. Can be used for hot pressing, cold bending, cutting, welding and other processing, has the good process performance.
For coal coking industry, due to long-term exposure to high temperature and pipeline and equipment corrosion environment, corrosion is serious, the service life of the equipment will be greatly reduced. Therefore, improve equipment corrosion resistance, extend the service life of equipment, reduce the production cost of enterprise, is an important means to enhance the competitiveness of enterprises. Stainless steel composite board is a kind of outer layer is pure stainless steel, inner lining for carbon steel metal composite material. This made of pure stainless steel and carbon steel metal composite material is made of stainless steel composite panels. The appearance of stainless steel clad plate for coking equipment manufacturing and upgrade provides material guarantee.