Dr. Jai Dev Chandel, Dr. Nand Lal Singh. Optimization of submerged arc welding heat affected zone toughness in X-120M line pipe steel. GJRE [Internet]. 2012 Mar. 15 [cited 2024 May 4];12(A4):47-54. Available from: https://engineeringresearch.org/index.php/GJRE/article/view/405