The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Sep. 15, 2020
Baoshan Iron & Steel Co., Ltd., Shanghai, CN;
Jianchun Wu, Shanghai, CN;
Yuan Fang, Shanghai, CN;
BAOSHAN IRON & STEEL CO., LTD., Shanghai, CN;
Abstract
Disclosed are a hot-rolled steel plate/strip with sulfuric acid dew point corrosion resistance and a method for producing the same, wherein the hot-rolled steel plate/strip comprises the following chemical elements in weight percentages: C: 0.02-0.06%, Si: 0.10-0.55%, Mn: ≤1.5%, P≤0.03%, S≤0.007%, Ti: 0.03-0.15%, Cr: 0.50-1.20%, Ni: 0.10-0.30%, Sb: 0.04-0.30%, Cu: 0.20-0.60%, N: 0.004-0.010%, Als: <0.001%, one or both of Sn: 0.005-0.04% and B: 0.001-0.006%, Mn/S≥250, total oxygen [O]: 0.007-0.020%; and a balance of Fe and other unavoidable impurities. The steel can be widely applied to the fields of tobacco baking apparatuses, air preheater heat exchange elements in industries such as petroleum, chemical industry, electric power, and metallurgy, delivery pipe, flue, and stack manufacturing structural parts, and boiler preheater and economizer equipment, of which the use environments have requirements for sulfuric acid dew point corrosion resistance performance.