Steel plate containing predetermined chemical components

This invention relates to a steel plate, which contains predetermined chemical components, wherein a ratio Mn/Ni of Mn and Ni is 0.80 or less, a carbon equivalent CeqWES is above 0.430% and below 0.900%, a tensile strength is above 780MPa and below 930MPa, and a yield strength is above 630MPa and be...

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Main Authors HONMA, RYUICHI, WATANABE, YOSHIYUKI, SHINOHARA, YASUHIRO, FURUKAWA, YOJI, KOJIMA, AKIHIKO, URAKAWA, TOMOKI, TANAKA, SHUN, YOSHIMURA, NOBUYUKI
Format Patent
LanguageChinese
English
Published 01.01.2022
Subjects
ALLOYS
BUILDING
BUILDING MATERIALS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
FIXED CONSTRUCTIONS
METALLURGY
STRUCTURAL ELEMENTS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:This invention relates to a steel plate, which contains predetermined chemical components, wherein a ratio Mn/Ni of Mn and Ni is 0.80 or less, a carbon equivalent CeqWES is above 0.430% and below 0.900%, a tensile strength is above 780MPa and below 930MPa, and a yield strength is above 630MPa and below 750MPa, a yield ratio is below 85%, a plate thickness is above 40mm and below 120mm, and a Vickers hardness above 225 points is measured at a position of 1/4 plate thickness from a surface, an average value from a smaller one among the Vickers hardness to 20% from the smaller one is Hvmin, and an average value from a larger one among the Vickers hardness to 20% is Hvmax, and at this time, Hvmin/Hvmax is 0.85 or less.
Bibliography:Application Number: TW20209120430