Comparison of Russia-used Standards for Gas/Oil Transportation Welded Pipes with Corresponding Standards as Currently Used in China

Compared here in the article are the Russia-used standards for gas/oil transportation welded pipes,i.e.,Specifications GOST R 52079-2003,CTT-08.00-60.30.00-KTN-013-1-05 and ТУ14-156-82-2009 with the corresponding standards as currently and commonly used in China to identify the differences.As a result,it is identified that there are obvious differences between the Russia-used standards and the China-used ones in such aspects as physiochemical properties and production inspections.Under the Russia-used standards,stricter mechanical property requirements for the specimens are specified,emphasizing rather low yield ratio,and rather high elongation as well as the plastic deformation ability of the pipe after yield deformation.Besides,more production inspection items are also specified under the standards.