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What are the general material options for the main shaft of a chemical centrifugal pump ？
ATACH Pump Industry supports the processing and production of shafts made of special materials, with high cost performance. The material selection for the main shaft of a chemical centrifugal pump should be determined based on the characteristics of the medium (such as corrosiveness, temperature, and pressure) and the requirements of the working conditions. Common materials include carbon steel, stainless steel, alloy steel, etc., as follows: Carbon steel High-quality carbon structural steel (such as 45 steel) : With moderate strength and toughness, it is suitable for conventional working conditions in non-corrosive media. Ordinary carbon steel: Insufficient strength, usually not used for spindles. Stainless steel 1Cr13, 2Cr13: martensitic stainless steel, with good corrosion resistance, suitable for slightly corrosive environments. 1Cr18Ni9Ti: austenitic stainless steel, with stronger corrosion resistance, suitable for corrosive media. Alloy steel 40Cr: medium carbon alloy steel, with good hardenability, suitable for high-pressure or high-load working conditions. 42CrMo: high-strength alloy steel, suitable for extreme working conditions (such as high temperature and high pressure). Other materials silicon carbide, YWN8: used in special corrosion-resistant scenarios (such as acid and alkali magnetic pumps), but mostly for bearings rather than spindles. Selection basis Non-corrosive media: 45 steel or 40Cr is preferred. Corrosive media: Stainless steel (such as 1Cr13, 1Cr18Ni9Ti) is selected. High pressure/high temperature: Select high-strength alloy steel such as 42CrMo. |
