【Major Chemical Equipment Components】Steel supplied by HBIS for low-temperature fittings of the Sino-Russian X80 gas pipeline from 2018 to 385

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Comply with the Work Safety Law! Take on the role of the primary responsible person! ---------------------------------------------- The past decade has been a period of rapid development for China’s chemical industry, marked by the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which in turn has contributed to the swift development of the petrochemical sector. Here, we have compiled some of the achievements and breakthroughs made by Chinese equipment manufacturers in terms of larger-scale production and greater use of domestic equipment. We welcome everyone to share their insights and discuss these topics together; let’s cheer for Made in China and support the development of chemical processing equipment! ------------------------------------------------------ The China-Russia East Route natural gas pipeline serves as an energy artery connecting the two countries; it starts in Eastern Siberia, Russia, and enters China at Heihe in Heilongjiang Province. Passing through nine provinces, autonomous regions, and municipalities, it is connected to China’s existing regional gas transmission networks, ensuring a stable supply of natural gas to the areas along its route. For this significant project, HBIS supplied over 3,000 tons of X80 (D1422mm×57mm) pipe steel – the type of steel with the greatest thickness, largest diameter, and highest technical complexity currently used in domestic engineering projects. This batch of steel is used in the Heihe-Changling section of the China-Russia East Route natural gas pipeline project, where the environmental conditions are extremely harsh: it is located in a cold-temperate continental monsoon climate zone, with temperatures dropping as low as minus 40 degrees Celsius, which imposes strict requirements on the quality of the steel used for the pipe fittings. To cope with low-temperature environments, the impact test temperature specified in the technical requirements for the X80 pipe fitting steel developed by Hebei Iron and Steel has been reduced from minus 30 degrees Celsius to minus 45 degrees Celsius. Meanwhile, the impact energy value has increased from a maximum of 70 joules to 135 joules, which is 95 joules higher than the maximum requirement specified in the standards – a situation that is unprecedented both domestically and internationally. 　　Moreover, this batch of steel materials sets new industry standards worldwide: a diameter of 1422 mm, a wall thickness of 57 mm, and a minimum operating temperature of minus 40 degrees Celsius – all of which are the best figures currently available for X80 long-distance pipelines in the global pipeline industry.