Ansteel Co., Ltd. Obtains Invention Patent Authorization: "A Method for Improving the Rolling Rhythm of 690MPa Grade Steel Plate with Increased Yield Strength"

NightAirdropper · 2026-03-18T03:31:48+00:00

Angang Steel Co., Ltd. (000898) has obtained a new invention patent titled "A Method for Improving Rolling Rhythm of 690MPa Grade Steel Plate with Increased Yield Strength," which can significantly enhance steel plate production efficiency and reduce rolling time per steel plate by 45-85 seconds. The company has received 279 patent authorizations this year, representing a year-over-year increase of 210%.

NightAirdropper

2026-03-18 03:31:48

Abstract generation in progress

Securities Star News, according to Tianyancha APP data, Ansteel Co., Ltd. (000898) has recently been granted a new invention patent. The patent is titled “A Method to Improve the Rolling Rhythm of 690MPa Grade Steel Plates,” with application number CN202310578949.9, and it was granted on March 17, 2026.

Patent Abstract: The invention discloses a method to improve the rolling rhythm of 690MPa grade steel plates, belonging to the field of metal processing. The chemical composition of the steel plate by weight percentage includes: C 0.09%–0.13%, Si 0.15%–0.35%, Mn 1.58%–1.73%, P ≤ 0.02%, S ≤ 0.015%, Nb 0.03%–0.05%, Cr 0.3%–0.4%, Ti 0.015%–0.025%, Al 0.015%–0.035%, V 0.02%–0.05%, B 0.0004%–0.0006%, N 0.01%–0.02%, with the remainder being Fe and unavoidable impurities. The method includes steelmaking → secondary refining → continuous casting → slab heating → rolling → straightening (hot straightening) → tempering. The invention significantly improves the rolling rhythm of the steel plates, reducing the average rolling time per piece by 45–85 seconds, which has a notable effect on improving production efficiency and reducing production costs.

Since the beginning of this year, Ansteel Co., Ltd. has obtained 279 new patents, an increase of 210% compared to the same period last year. According to the company’s 2025 semi-annual financial report, the company invested 259 million yuan in R&D in the first half of 2025, a year-on-year increase of 35.6%.

Based on Tianyancha big data analysis, Ansteel Co., Ltd. has invested in 53 external companies, participated in 67,607 bidding projects; in terms of property clues, there are 15 trademark records, 11,115 patent records, and 165 copyright records; additionally, the company holds 650 administrative licenses.

Data source: Tianyancha APP

The above content is compiled from public information by Securities Star and generated by AI algorithms (Wangxin Suanbei No. 310104345710301240019), and does not constitute investment advice.

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