Gangyan Gaona applies for patents related to high-temperature alloy processing, including heat treatment improvements for coated high-temperature alloys to enhance interface and overall performance

On March 28, reports from the National Intellectual Property Administration show that Beijing Steel Research High-Temperature Alloy Technology Co., Ltd. has applied for a patent titled “Heat Treatment Method for Coated High-Temperature Alloys.” The application publication number is CN121737603A, the application number is CN202511838038.0, the publication date is March 27, 2026, the application date is December 8, 2025, and the inventors are Yang Shanjie, Guo Hongbo, Yuan Xiaofei, and Zeng Qiang. The patent agency is Beijing Superlative Hongyu Intellectual Property Agency Co., Ltd., and the patent agent is Shao Huimin, with classification numbers C22F1/00, C22F1/02, C23C16/44, C23C4/12, C30B33/02.

The patent abstract indicates that the invention relates to the field of high-temperature alloy technology, specifically to a heat treatment method for coated high-temperature alloys. The method provided for heat treatment of coated high-temperature alloys includes the following steps: sequentially performing pre-heat treatment, coating preparation step I, coating preparation step II, subsequent heat treatment I, coating preparation step III, subsequent heat treatment II, and diffusion heat treatment; wherein the pre-heat treatment includes gradually increasing temperature pre-heat treatment steps I, II, III, IV, and V; and the temperature of subsequent heat treatment I is greater than the temperature of subsequent heat treatment II. The heat treatment method for coated high-temperature alloys effectively controls the inter-diffusion behavior of elements between the coating and the high-temperature alloy matrix, improving the interface bonding strength, oxidation resistance, and mechanical properties of the coated high-temperature alloys.

Steel Research High-Temperature Alloy was established on November 8, 2002, and was listed on the Shenzhen Stock Exchange on December 25, 2009, with both its registered and office locations in Beijing. The company is a leading enterprise in the domestic high-temperature alloy field, focusing on the research and production of high-temperature alloy products, with strong technical capabilities and products widely used in aerospace and other fields.

Steel Research High-Temperature Alloy’s main business involves the research, production, and sales of high-temperature materials for aerospace, power, automotive, and other industrial materials, as well as manufacturing equipment for high-temperature and heat-resistant alloy castings. It belongs to the Shenwan industry classification of National Defense and Military Industry - Aviation Equipment II - Aviation Equipment III, covering sectors such as aerospace military industry, aircraft engines, and commercial aerospace.

In 2025, Steel Research High-Temperature Alloy achieved a revenue of 3.697 billion yuan, ranking 7th among 13 companies in the industry, far below the first-ranked AVIC’s 29.086 billion yuan and the second-ranked AVIC Aircraft’s 24.212 billion yuan, with an industry average of 7.536 billion yuan and a median of 3.697 billion yuan. In its main business, revenue from casting alloy products was 2.48 billion yuan, accounting for 67.09%; deformation alloy products were 955 million yuan, accounting for 25.84%; new alloy products were 239 million yuan, accounting for 6.46%; and others (supplementary) were 22.4637 million yuan, accounting for 0.61%. In terms of net profit, 2025 was 201 million yuan, ranking 8th in the industry, far below the first-ranked AVIC Aircraft’s 1.343 billion yuan and the second-ranked AVIC High-Tech’s 1.033 billion yuan, with an industry average of 339 million yuan and a median of 209 million yuan.

Recent patent situation of Beijing Steel Research High-Temperature Alloy Technology Co., Ltd. is as follows:

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Editor: Xiao Lang Kuai Bao