Investigation on the Effect of Cold Drawing Process on Mechanical Properties and Structure of Seamless Steel (Ck60) Tube

16 Pages Posted: 9 Apr 2019

See all articles by Sorush Niknamian

Sorush Niknamian

University of Cambridge - School of Biological Sciences

Date Written: January 16, 2019

Abstract

The cold drawing process is one of the precise metal forming techniques which have attracted attention by many researchers with respect to the given properties such as potential for improvement of mechanical properties of the material, achieving of accurate dimensional tolerances and rise of quality at final surface so that different studies are conducted on properties of various materials in the course of analysis of its effect. Using cold drawing and also exertion of special heat treatment cycle in this investigation, initially the seamless steel tube Ck60 has been produced and then effect of cold drawing has been assessed on the mechanical properties and structure of steel. The production process of seamless steel tube includes two phases of cold drawing which was followed by surface reduction levels 15.1% and 13.7% respectively. In order to analyze mechanical properties, tensile test and hardness-testing was used and metallography test was also employed to observe the structure. The given results indicate that the seamless steel tube Ck60 produced by means of this production process has ultimate tensile strength (1021 MPa), yield strength (950 MPa) and elongation (9%). Moreover, the value of hardness mean was 312 for the final tube in Vickers Hardness Test. The images taken from optical microscopy also show that the final structure of tube is uniform and as perlite ferrite.

Keywords: Cold drawing, Seamless tube, Mechanical properties, Hardness, Structure, Heat treatment

Suggested Citation

Niknamian, Sorush, Investigation on the Effect of Cold Drawing Process on Mechanical Properties and Structure of Seamless Steel (Ck60) Tube (January 16, 2019). Available at SSRN: https://ssrn.com/abstract=3353593 or http://dx.doi.org/10.2139/ssrn.3353593

Sorush Niknamian (Contact Author)

University of Cambridge - School of Biological Sciences ( email )

Downing Street
Cambridge, CB2 3DY
United Kingdom

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