The Influence of Heat Input to Mechanical Properties and Microstructures of API 5L-X65 Steel Using Submerged Arc Welding ProcessSuryana, Agus Pramono, Iskandar Muda and Ade SetiawanMATEC Web Conf., 269 (2019) 01009DOI: https://doi.org/10.1051/matecconf/201926901009