On April 7，HYST’s P91 and P92 seamless tube for high pressure boiler use and X65QO submarine line pipe were both awarded Golden Cup Quality Product on the list of Products for Brand Development of Physical Quality of Metallurgical Product of 2021 released by China Iron and Steel Association.

P91 and P92 seamless tube used for high pressure boiler, honored with several invention patents and awards, has the features of short production process, high rate of finished products, good isotropy and high quality stability, and has been applied in supercritical and ultra-supercritical boiler and the four big pipelines.

X65QO submarine line pipe has been applied in China’s first self-operated 1542-meter deep water gas field--Lingshui 17-2 gas field, and hence, China’s maritime oil and gas exploitation industry could usher in the era of development in the ultra-deep water.