What Is The Difference Between The Properties Of The X70 And X80 Steel Grades?

The yield strength of X80 pipeline steel is equivalent to X70, but the tensile strength is higher than X70. X80 offers higher strength levels, reduced wall thickness, reduced engineering costs, but higher weld process and toughness control requirements. At present, X80 has been widely used in major projects such as West-East Natural Gas Transmission Project in China.