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HOT ROLLED STEEL FOR STEEL COMPONENT EXCELLENT IN FITTABILITY AND MACHINABILITY OF FRACTURE SURFACES EACH OTHER AFTER FRACTURE SEPARATION AND STEEL COMPONENT
HOT ROLLED STEEL FOR STEEL COMPONENT EXCELLENT IN FITTABILITY AND MACHINABILITY OF FRACTURE SURFACES EACH OTHER AFTER FRACTURE SEPARATION AND STEEL COMPONENT
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机译:热轧钢,在断裂分离和钢组分后,在断裂表面的适应性和可加工性方面表现出色
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摘要
PROBLEM TO BE SOLVED: To provide a steel material by reducing fracture surface neighbor deformation volume during fracture separation, increasing irregularity of a fracture surface and enhancing fittability, and suppressing lack of the fracture surface.;SOLUTION: There is adopted a hot rolled steel material for steel component, excellent in fittability and machinability of fracture surfaces each other after fracture separation, containing C:0.35-0.45 mass%, Si:0.6-1.0 mass%, Mn:0.60-0.90 mass%, P:0.010-0.035 mass%, S:0.06-0.10 mass%, Cr:0.25 mass% or less, V:0.20-0.40 mass%, Zr:0.0050 mass% or less, N:0.0060-0.0150 mass%, Bi:0.0001-0.0050 mass% and further one or more kinds selected from a group consisting of Sb:0.0001-0.0050 mass%, Sn:0.0001-0.0050 mass% and Pb:0.0001-0.0050 mass%.;SELECTED DRAWING: None;COPYRIGHT: (C)2018,JPO&INPIT
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