Análisis de soldabilidad de las varillas de acero corrugado ASTM A706 para uso estructural bajo la norma NTE INEN-2167

Abstract

The purpose of this research is to study the weldability of ASTM A706 [1] corrugated steel rods, taking into consideration the NTE-INEN 2167 [2] standard, which details the requirements that must be met when welding smooth and corrugated carbon steel rods, thermo-treated or micro-alloyed. The following study will use corrugated steel rods from three different manufacturers Adelca, Andec and Novacero, this choice was made to obtain a comparison of what happens before and after applying a welding process on the materials, since their manufacturing process differs from each other, the companies Adelca and Andec use a heat treatment process to obtain their final product, while Novacero rods are made in a hot rolling process and then left to cool to room temperature. Through the application of an electric arc welding process SMAW, specimens will be obtained for the analysis of the tests dictated by the NTE-INEN 2167 standard [2] and subsequently analyze the mechanical properties such as tensile strength, tensile strength, hardness, among others. Finally, a comparison will be made by studying the values obtained during the application of the tests in order to know how the mentioned materials behave after the welding process when correctly applying the tasks dictated by the NTE-INEN 2167 [2] standard and the codes linked to it.