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STEEL WIRE OR ROD SUPERIOR IN WIRE DRAWABILITY CAPABLE OF OMITTING HEAT TREATMENT PRIOR TO WIRE DRAWING, AND BEARING PARTS
STEEL WIRE OR ROD SUPERIOR IN WIRE DRAWABILITY CAPABLE OF OMITTING HEAT TREATMENT PRIOR TO WIRE DRAWING, AND BEARING PARTS
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机译:钢丝可拔性的钢丝或棒材性能卓越,可在拉丝和零件前省去热处理
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摘要
PROBLEM TO BE SOLVED: To provide a steel wire or rod which has excellent wire drawability as in hot-rolled state, even when heat treatment such as spheroidizing annealing is omitted, and provide bearing parts obtained from the steel wire or rod.;SOLUTION: The steel wire or rod includes 0.8-1.3% C (by mass%, hereafter), and has 10 or less of an aspect ratio (a ratio of a major axis to a minor axis) of pro-eutectoid cementites, 2 μm or less of the minor axes, and 20 μm or less of the average size of an enclosed region by the pro-eutectoid cementite.;COPYRIGHT: (C)2003,JPO
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