Analysis of Bending Methods on BjTP 280 Roundbars on Hardness and Microstructure

Adzin Hanif Muttaqin; Mohammad Miftachul Munir; Imam Khoirul Rohmat

doi:10.30811/jowt.v5i2.4197

Analysis of Bending Methods on BjTP 280 Roundbars on Hardness and Microstructure

Adzin Hanif Muttaqin, Mohammad Miftachul Munir, Imam Khoirul Rohmat

Abstract

Reinforcing steel or commonly called roundbars is a material that is often used in industry, this is because the material is strong and easy to find anywhere. Deformation has a relationship to hardness. The higher the deformation value, the higher the material hardness value, but this is inversely proportional to the grain change, where the greater the deformation, the smaller the grain size. This research aims to determine the hardness and microstructure values of cold bending and hot bending treatments. Research by carrying out cold bending and hot bending which is connected to roundbars material without BjTP 280 bending treatment with the SMAW welding process. The highest hardness value is shown in the HAZ area of the hot bending specimen with a hardness value of 239.97 HV with a fine and small microstructure so it has the highest hardness value.

Keywords

Hot Bending, Cold Bending, Roundbars, BjTP 280, Embedded plate

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DOI: http://dx.doi.org/10.30811/jowt.v5i2.4197