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                      Knowledge of stainless steel pump material

                       
                      Stainless steel pump material and characteristics: a: broadly speaking, stainless steel pump is divided into stainless steel pump and stainless steel pump, material is divided into ferritic stainless steel, austenitic stainless steel, deep hardening stainless steel (precipitation hardening semi Austenitic type, precipitation hardening Martensite type and precipitation hardening Austenitic type stainless steel. Included in China's national standard steel plate has 0Cr17Ni7A, 0Cr17Ni4Cu4Nb and 0Cr15Ni7M02Al three, is a precipitation hardening semi-Austenitic stainless steel. The microstructure of the steel is characterized by 5% ~20% ferritic austenite plus volume fraction during solution or annealing. After a series of heat treatment or mechanical deformation treatment, this steel is transformed from austenite to martensite, and then hardened by aging to achieve the required high strength. This steel has good formability and good weldability, can be used as a super high strength material in stainless steel is generally stainless steel and acid resistant steel. Stainless steel pump refers to atmospheric, steam and water and other weak medium corrosion of steel, and acid resistant steel refers to acid, alkali, salt and other chemical corrosion medium corrosion of steel. Stainless steel since the beginning of this century, to now has a history of more than 90 years. The invention of stainless steel is a major achievement in the history of world metallurgy. The development of stainless steel has laid an important material and technical foundation for the development of modern industry and scientific and technological progress. There are many kinds of stainless steel, different performance, it gradually formed several categories in the process of development. According to the structure, it is divided into martensitic stainless steel (including precipitate hardened stainless steel), ferritic stainless steel, austenitic stainless steel and austenitic ferrite duplex stainless steel and other four categories; According to the main chemical composition of steel or some characteristic elements in the steel to classify, divided into chromium stainless steel, chromium nickel stainless steel, chromium nickel molybdenum stainless steel and low carbon stainless steel, high molybdenum stainless steel, high purity stainless steel; According to the performance characteristics and use of steel classification, is divided into nitric acid resistance stainless steel, sulfuric acid resistance stainless steel, pitting corrosion resistance stainless steel, stress corrosion resistance stainless steel, high strength stainless steel; According to the functional characteristics of steel classification, it is divided into low temperature stainless steel, non-magnetic stainless steel, free cutting stainless steel, super plastic stainless steel. At present, the commonly used classification methods are based on the characteristics of steel structure and chemical composition and the combination of the two methods. Generally divided into martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, duplex stainless steel and precipitation hardening stainless steel, or divided into chromium stainless steel and nickel stainless steel two categories. Stainless steel is commonly used in corrosion-resistant environments, as well as medical devices and household items. And Martensite stainless steel;
                      Two: stainless steel pump according to the structure can be divided into stainless steel gear pump and stainless steel insulation pump two kinds, the former transport viscosity is lower, the latter can transport high viscosity materials; Botou City Haina Oil pump Co., Ltd. production stainless steel pump flow is mostly between 1-60 cubic/hour. You can call our company's technical personnel to assist in the selection.
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