Abstract
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Article Information:
Mechanical Properties of Cold-Drawn Low Carbon Steel for Nail Manufacture: Experimental Observation
N.A. Raji and O.O. Oluwole
Corresponding Author: N.A. Raji
Submitted: April 10, 2012
Accepted: April 30, 2012
Published: January 01, 2013 |
Abstract:
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The objective of this study is to investigate the influence of service situation on the mechanical properties of
plain nails manufactured from low carbon steel. The influence of the degree of cold drawing on the mechanical properties
and strain hardening of the material is investigated by tensile test experimentation. The stress-strain relationships of the
cold-drawn low carbon steel were investigated over the 20, 25, 40 and 55% degree of drawn deformation for the
manufacture of 4, 3, 2½ and 2 inches nails, respectively. The true stress-strain curves were analyzed to obtain the yield
strength and tensile strength of the cold drawn steel. It is shown that the yield strength, tensile strength, hardness and
toughness of the low carbon steel reduce with increasing degree of cold-drawn deformation. The micrographs of the
deformed samples obtained using optical microscope shows that the grain structure elongates in the direction of the
drawing operation and misorientation of the grains set in at 40 and 55% degree of deformation. The difference in yield
strength was attributed to the strain hardening, resulting from the different degrees of drawn deformation.
Key words: Cold-drawing, hardness, tensile strength, tensile test, toughness, yield strength,
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Cite this Reference:
N.A. Raji and O.O. Oluwole, . Mechanical Properties of Cold-Drawn Low Carbon Steel for Nail Manufacture: Experimental Observation. Research Journal of Applied Sciences, Engineering and Technology, (01): 118-122.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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