LOW ALLOY HIGH PERFORMANCE STEEL
    99.
    发明申请
    LOW ALLOY HIGH PERFORMANCE STEEL 审中-公开
    低合金高性能钢

    公开(公告)号:US20160369362A1

    公开(公告)日:2016-12-22

    申请号:US15160221

    申请日:2016-05-20

    摘要: A low alloy, high performance steel having high impact toughness and high ductility, as well as methods of making and heat treating the alloy, are provided. The alloy steel composition consists essentially of about 0.24% to about 0.32% carbon, about 2.00% to about 3.00% chromium, about 0.50% to about 1.50% molybdenum, about 0.05% to about 0.35% vanadium, about 1.00% manganese or less, about 3.00% nickel or less, about 1.50% silicon or less, with minimal impurities, and balance consisting essentially of iron, wherein % is weight percent based on the entire weight of the alloy steel composition. The impurities may include about 0.20% copper or less, about 0.015% phosphorous or less, about 0.012% sulfur or less, about 0.02% calcium or less, about 0.15% nitrogen or less, and/or about 0.025% aluminum or less. Also disclosed is a hardened and tempered article that has high impact toughness, as well as other favorable physical properties.

    摘要翻译: 提供了具有高冲击韧性和高延展性的低合金,高性能钢以及该合金的制造和热处理方法。 合金钢组合物基本上由约0.24%至约0.32%的碳,约2.00%至约3.00%的铬,约0.50%至约1.50%的钼,约0.05%至约0.35%的钒,约1.00%的锰或更少, 约3.00%的镍或更少,约1.50%的硅或更少,具有最小的杂质,余量基本上由铁组成,其中%是基于合金钢组合物的总重量的重量百分比。 杂质可以包括约0.20%的铜或更少,约0.015%的磷或更少,约0.012%的硫或更少,约0.02%的钙或更少,约0.15%的氮或更少,和/或约0.025%的铝或更少。 还公开了具有高冲击韧性以及其它有利物理性质的硬化和回火制品。