【Major Chemical Equipment】418 – 318 kilometers of X70M straight-seam submerged arc welded pipes exported for the AKK project in Nigeria from 2021
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This post was last edited by Desert Fish on 2022-7-9 at 10:37. The AKK project in Nigeria is the country’s only major natural gas pipeline that will connect its gas sources in the south with consumers in the north; the required diameter of the steel pipes is 1016 millimeters, with wall thicknesses of 17.3, 20.2, and 23.8 millimeters respectively, using X70M grade steel. Baoji Steel Pipe, in collaboration with China National Petroleum Pipeline Bureau, undertook the task of producing and supplying 318 kilometers of straight-seam submerged arc welded pipes for this project. The AKK project is the largest order that China National Petroleum Corporation’s Baoji Steel Pipe Company has secured in the international market in 2020. With the acquisition of this order, the company’s international market orders in 2020 increased by 40% on a year-on-year basis, accounting for 16% of the total orders, thus showing growth despite a difficult market environment.
It’s tough in the scorching summer heat! Keep up with heat prevention and cooling! Clarify the key tasks! Safety analysis must not be neglected! ----------------------------------------------The past decade has been a period of rapid development in China’s chemical industry, with the emergence of many new processes, products, and equipment. China’s chemical processing equipment has also seen significant progress, which has contributed to the swift advancement 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 increased use of domestic equipment. We invite everyone to share their insights and engage in discussions; let’s cheer for Made in China and support the development of chemical processing equipment! ------------------------------------------------------ 【Major Chemical Equipment in a Major Country】Series Summary Post – Being Updated: https://bbs.hcbbs.com/thread-3366481-1-1.html (Source: Huahai Chuanliu – Haichuan Network)
The AKK project is the largest order that China National Petroleum Corporation’s Baoji Steel Pipe Company has secured in the international market in 2020. ‘’ Primarily exported in 2021
Longitudinal submerged arc welded steel pipes (LSAW) are made by folding wide steel plates together; their cost is higher than that of spiral-welded double-submerged arc welded pipes, by about 40%. Since the welds in LSAW pipes are shorter than those in spiral-welded pipes, and since the entire length of these pipes is expanded to eliminate residual stresses from the rolling process, whereas spiral-welded submerged arc welded pipes only have their ends expanded, leaving residual stresses in the pipe body. Straight-seam submerged arc welded pipes have better quality than spiral-seam submerged arc welded pipes, and are generally used in critical sections of gas and oil pipelines with a diameter D≥508mm and a wall thickness greater than 22mm. 4.2 Pipe manufacturing standards and strength grades of common steels