Comparison of the data of the physical properties of Jilin alloy tube and carbon steel precision tube, Jilin alloy tube density slightly higher than the ferritic and martensitic stainless steel precision tube, the Jilin and slightly lower than the austenitic alloy tube; resistivity carbon steel , ferritic, martensitic and austenitic Jilin alloy pipe Sort Ascending; sort of the size of the coefficient of linear expansion is similar to austenitic stainless steel precision tubes maximum and minimum carbon steel; carbon steel, ferritic and Markov Body Jilin alloy pipe magnetic and non-magnetic, austenitic stainless steel precision tubes, but the its work hardening generation into the austenitic phase transition will generate a magnetic heat treatment method available to eliminate this martensite restored to its non-magnetic.