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Abstract
本発明に係る鋼矢板は、炭素当量CENが0.260〜0.500であり、金属組織がフェライトと、パーライトと、ウイッドマンステッテンフェライトと、析出物とを含み、前記析出物はNb炭窒化物およびV炭窒化物のうち1種または2種であり、前記析出物の合計個数密度が0.10〜0.30個/μm2であり、前記フェライトおよび前記パーライトの合計面積率が70%以上であり、前記ウイッドマンステッテンフェライトの面積率が1%以上であり、前記フェライトおよび前記パーライトの平均結晶粒径が10〜80μmであり、降伏強さが460MPa以上である。

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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
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Patent Owner(s)
Patent Owner | Address |
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新日鐵住金株式会社 | Not Provided |
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Inventor(s)
Inventor Name | Address |
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小野寺 紀昭 | 日本国福岡県北九州市戸畑区飛幡町1−1 新日本製鐵株式会社 八幡製鐵所内 |
市川 和利 | - |
伊藤 栄利 | - |
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