STEEL PLATE HAVING HIGH CRACK-ARRESTING PERFORMANCE, AND MANUFACTURING METHOD THEREOF

WIPO Patent Application WO/2016/119500

A1

A steel plate having a high crack-arresting performance, and manufacturing method thereof; contents (by wt.%) of chemical elements in the steel plate are as follow: 0.04% ≤ C ≤ 0.12%, 0.10% ≤ Si ≤ 0.30%, 0.60% ≤ Mn ≤ 1.90%, P ≤ 0.015%, S ≤ 0.0040%, 0.01% ≤ Cr ≤ 0.40%, 0.10% ≤ Ni ≤ 0.70%, 0.001% ≤ Mo ≤ 0.40%, 0.001% ≤ Cu ≤ 0.50%, 0.01% ≤ Al ≤ 0.06%, 0.01% ≤ Nb ≤ 0.06%, 0.01% ≤ Ti ≤ 0.06%, N ≤ 0.007%, 0.0001% ≤ Ca ≤ 0.0045%, and 1.0 ≤ Ca/S ≤ 2.0, and the balances are Fe and other unavoidable impurities. Also provided is a manufacturing method of the steel plate, the manufacturing method comprising the following steps: smelting, external refining, casting, slab heating, controlled rolling and controlled cooling.

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LI BING (CN)
ZHANG CAIYI (CN)
GAO SHAN (CN)

PCT/CN2015/093745

August 04, 2016

November 04, 2015

Click for automatic bibliography generation  

BAOSHAN IRON & STEEL (CN)

C22C38/58; C21D6/00; C21D8/02; C22C38/50; C22C38/54

CN104561831A	2015-04-29
CN101341269A	2009-01-07
JP2011241462A	2011-12-01
US20020036035A1	2002-03-28
CN1746326A	2006-03-15

SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
上海专利商标事务所有限公司 (CN)

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