Hot galvanizing steel plate with high strength
A high-strength steel plate and high-strength steel plate technology, which is applied in the field of hot-dip galvanized high-strength steel plate and high-strength steel plate, can solve the problems of low yield strength and tensile strength, poor bending performance, etc., and achieve good bending performance, low cost, The effect of facilitating large-scale promotion
Inactive Publication Date: 2013-07-24
李晓昭
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Problems solved by technology
However, the yield strength and tensile strength of this technical solution are low, and it is not suitable for construction roll forming and the processing and production of food can pull rings with high hardness requirements, and the bending performance is poor
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0027] A hot-dip galvanized high-strength steel sheet, the chemical composition of the hot-dip galvanized high-strength steel sheet is as follows, C: 0.02%, Si: 0.03%, Mn: 0.10%, P: 0.015%, S: 0.010%, and the balance is Fe and unavoidable inclusions.
Embodiment 2
[0028] Embodiment 2: A hot-dip galvanized high-strength steel sheet, the chemical composition of the hot-dip galvanized high-strength steel sheet is as follows, C: 0.20%, Si: 0.02%, Mn: 0.60%, P: 0.01%, S: 0.005%, The balance is Fe and unavoidable inclusion elements.
Embodiment 3
[0029] Embodiment 3: As an improvement of the present invention, the chemical composition of the hot-dip galvanized high-strength steel sheet is as follows: C: 0.05%, Si: 0.01%, Mn: 0.20%, P: 0.012%, S: 0.008%, The balance is Fe and unavoidable inclusion elements.
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Abstract
The invention relates to a hot galvanizing steel plate with high strength. The steel plate is characterized in that the hot galvanizing steel plate with high strength comprises the chemical components as follows: 0.02-0.20% of C, less than or equal to 0.03% of Si, 0.10-0.60% of Mn, less than or equal to 0.015% of P, less than or equal to 0.010% of S and the balance of Fe and inevitable impure elements. Compared with the prior art, the mechanical performance range of steel is 550-650MPa in yield strength, 550-650MPa in strength of extension, and HR30T70-78. The microstructure is a ferrite fiber structure. The steel plate is suitable for processing and manufacturing of pull rings of food cans meeting roller forming of buildings and the demand of high hardness. The steel plate is good in bending performance, lower in cost and convenient for large-scale popularization.
Description
technical field [0001] The invention relates to a high-strength steel plate, in particular to a hot-dip galvanized high-strength steel plate, which belongs to the field of metal materials. Background technique [0002] With the development of construction, food processing and other industries, various industries have widely realized the use of thinned steel through high-strength manufacturing parts. High-strength materials usually use expensive alloying elements such as niobium, vanadium and molybdenum. Fine-grain strengthening, precipitation strengthening, and multiphase strengthening are used to improve the strength of the base material. The application of this method can effectively improve the strength and toughness of the material, and can maintain good plasticity and good welding performance, but the application of this method will bring The cost of the steel plate increases obviously, which is not convenient for large-scale popularization and use. [0003] After re...
Claims
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IPC IPC(8): C22C38/04
Inventor 李晓昭
Owner 李晓昭