Disclosed are a high-strength,high-toughness hot-pressed steel plate member and a manufacturing method therefor.A specified hot-press process is performed on a steel plate member which, withrespect to the chemical composition of the steel plate, comprises: 0.15%-0.4wt%of C; 1.0-5.0wt% of Mn or of a .....
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-Reduce expensive chemical and thermal treatment for flow assurance-Improve subsea system reliability and flow assurance-Extend pipe, valve & other componentsΓÇÖ life-Prevent catastrophic failures, enable ultra-deep water exploration by improving flow assurance
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