Abstract: Summarized here in the article are relevant data concerning the X80 Φ1 219 mm LSAW pipe as made as per the technical specifications of the Sino-Russia East Route Natural Gas Pipeline Project,including the tensile property,the impact energy and the finished product dimensions,etc. Also analyzed are the chemical composition and the microstructure morphology of the steel plate and the said weld pipe. It is regarded via the analysis that the structure of the X80 Φ1 219 mm×22 mm LSAW pipe is composed with acicular ferrite + granular bainite + quasi-polygonal ferrite,and the key alloy chemical element are well controlled with a narrow range;moreover all the properties of the said SAWL pipe are in compliance with the above mentioned technical specifications including excellent strength and toughness,well-mated weld strength and the pipe body strength as well good finished pipe dimensions.