In this paper

two different drawing processes (reduction of area /% :process No1

34. 45

31. 67

19

00 and 20.08;process No2

20. 10

19. 28

34. 64

31.41) are designed. The effects of pass reduction of area on martensitic transformation

magnetic properties and mechanical properties of 304H stainless steel in wire drawing are studied. The results show that when the total strain of the steel wire is the same

the large reduction ratio at first and second pass is more favorable for martensite transformation

and the saturation magnetization Ms is larger. Otherwise

the martensite transformation is less

and the saturation magnetization is smaller. The strength o£ the steel wire is linearly related to the true strain of the drawing

and the value is related only to the total strain of the drawing. In the test

as the first two pass reduction ratios are 20.10% and 19.28%

and the latter two pass reduction ratios are 34.64% and 31.41%

the martensite transformation is less and the saturation magnetization of the steel wire is weak.