High-hardness, high-toughness, wear-resistant steel plate and manufacturing method thereof

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United States of America Patent

PATENT NO 9994926
SERIAL NO

14418423

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Abstract

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The invention provides a wear-resistant steel plate, which has the following chemical composition (wt. %): C: 0.36-0.45%, Si: 0.10-0.30%, Mn: 0.40-1.00%, P≤0.015%, S≤0.010%, Nb: 0.010-0.040%, Al: 0.010-0.080%, B: 0.0010-0.0020%, Ti: 0.005-0.050%, Ca: 0.0010-0.0080%, V≤0.080%, Cr≤1.00%, RE≤0.10%, N≤0.0080%, O≤0.0060%, H≤0.0004%, wherein the total amount of Nb and Ti is between 0.025% and 0.080%, the total amount of Al and Ti is between 0.030% and 0.12%, and the balance being Fe and unavoidable impurities. The invention also provides a method of manufacturing the wear-resistant steel plate, comprising smelting, casting, rolling, post-rolling direct cooling and other steps. The wear-resistant steel plate obtained from the above composition and process has high hardness and excellent wear resistance, and is suitable for quick-wear devices in engineering machinery, such as crusher baffle, etc.

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Patent Owner(s)

Patent OwnerAddress
BAOSHAN IRON & STEEL CO LTD201900 FUJIN ROAD BAOSHAN DISTRICT SHANGHAI 885 SHANGHAI CITY SHANGHAI CITY 201900

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Hongbin Shanghai, CN 52 129
Miao, Yuchuan Shanghai, CN 5 10
Yao, Liandeng Shanghai, CN 13 24

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