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80KGF/MM2 CLASS HIGH TENSILE STEEL PLATE FOR INDUSTRIAL MACHINERY HAVING EXCELLENT WELDABILITY
80KGF/MM2 CLASS HIGH TENSILE STEEL PLATE FOR INDUSTRIAL MACHINERY HAVING EXCELLENT WELDABILITY
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机译：具有出色焊接性的80KGF / MM2级工业机械用高强度钢板
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摘要
PURPOSE:To develop a high tensile steel plate which is improved in weldability while maintaining the necessary strength by slightly increasing the contents of C and Mn in the high tensile steel plate and adding a slight ratio of V thereto. CONSTITUTION:The 80kgf/mm2 class high tensile steel plate to be used in civil engineering and construction works, mining developments, etc., is so adjusted in components as to contain, by weight %, 0.15-0.30% C, 0.05-0.55% Si, 1.00-1.80% Mn, 0.03-0.10% V, 0.0005-0.005% B, 0.01-0.10% Al, or further at least one kind among 0.05-0.30% Cu, 0.05-0.20% Cr, and 0.03-0.10% Mo and to have =0.30% total of 3 times the content of C and the content of V. The 80kgf/mm2 class high tensile steel plate having the excellent weldability is produced at low cost by adding a slight amt. of V thereto and slightly increasing the contents of C and Mn without specially requiring Cr and Mo as essential components.
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机译：目的：开发一种高强度钢板，该钢板通过稍微增加高强度钢板中的C和Mn含量并向其添加少量的V，从而在保持所需强度的同时提高焊接性。组成：用于土木工程和建筑工程，采矿业等的80kgf / mm 2级高强度钢板的成分经调整，以按重量％计含有0.15-0.30％C，0.05 -0.55％Si，1.00-1.80％Mn，0.03-0.10％V，0.0005-0.005％B，0.01-0.10％Al或0.05-0.30％Cu，0.05-0.20％Cr和0.03中的至少一种Mo含量为-0.10％，C含量为V和V含量的总和为≥0.30％，总含量为≥0.30％。通过少量添加，以低成本生产了具有优异焊接性的80kgf / mm 2级高强度钢板。 amt。在不特别要求Cr和Mo为基本成分的情况下，使V的含量增加，并稍微增加C和Mn的含量。
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