In the pipeline, in addition to the requirements has a high compressive strength, but also requires a high and low temperature toughness and excellent welding performance.Oil and gas transmission pipeline steel plate:(X42 L290NB, X46 , X52 L360NB, X56 , X60 L415NB, X65 L450MB , X70 L485MB, X80 L556MB). X70 used for West-East gas pipeline project pipeline steel compared to the yield strength of the steel X80 which corresponds to, but the tensile strength than steel X70.
