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ABBREVIATED STEEL WITH SPECIFIED HEARTS AND STRENGTHS AND PROCEDURES FOR THEIR MANUFACTURING

机译:缩写钢与其制造业的特定心脏和优势和程序

摘要

One embodiment of the present invention provides an abrasion resistant steel having excellent hardness and impact toughness, and a manufacturing method therefor, the abrasion resistant steel comprising, by wt%, 0.33-0.42% of carbon (C), 0.1-0.7% of silicon (Si), 0.6-1.6% of manganese (Mn), 0.05% or less of phosphorus (P) (excluding 0), 0.02% or less of sulfur (S) (excluding 0), 0.07% or less of aluminum (Al) (excluding 0), 0.55-5.0% of nickel (Ni), 0.01-1.5% of copper (Cu), 0.01-0.8% of chromium (Cr), 0.01-0.8% of molybdenum (Mo), 50 ppm or less of boron (B) (excluding 0), and 0.02% or less of cobalt (Co) (excluding 0), further comprising one or more selected from the group consisting of 0.02% or less of titanium (Ti) (excluding 0), 0.05% or less of niobium (Nb) (excluding 0), 0.05% or less of vanadium (V) (excluding 0) and 2-100 ppm of calcium (Ca), and comprising the balance of Fe and other inevitable impurities, wherein C and Ni satisfy the following relation 1, and the microstructure comprises 95 area% or more of martensite and 5% or less of bainite (including 0%) . C×Ni≥0.231
机译:本发明的一个实施方案提供了具有优异的硬度和冲击韧性的耐磨钢,以及其制造方法,耐磨钢,含有0.33-0.42%的碳(C),0.1-0.7%的硅(C),0.1-0.7% (Si),0.6-1.6%的锰(Mn),0.05%或更少的磷(P)(不包括0),0.02%或更少的硫(不包括0),铝(Al)的0.07%或更少)(不包括0),0.55-5.0%的镍(Ni),铜(Cu)的0.01-1.5%,0.01-0.8%的铬(Cr),0.01-0.8%的钼(Mo),50ppm或更低硼(B)(不包括0)和0.02%或更少的钴(CO)(不包括0),还包含选自0.02%或更少的钛(Ti)(不包括0)的组中的一种或多种。 0.05%或更少的铌(Nb)(不包括0),0.05%或更少的钒(V)(不包括0)和2-100ppm的钙(Ca),并包含Fe和其他不可避免的杂质的平衡,其中C和NI满足以下关系1,以及微观结构Re包含95个面积%或更多的马氏体和5%或更少的贝氏体(包括0%)。 C×Ni≥0.231.

著录项

  • 公开/公告号EP3859043A4

    专利类型

  • 公开/公告日2021-10-27

    原文格式PDF

  • 申请/专利权人 POSCO;

    申请/专利号EP20190866926

  • 发明设计人 YU SENG-HO;JUNG YOUNG-JIN;CHO NAM-YOUNG;

    申请日2019-09-23

  • 分类号C22C38/44;C21D1/18;C21D1/60;C21D6;C21D8/02;C21D9/46;C22C38;C22C38/02;C22C38/04;C22C38/06;C22C38/42;C22C38/46;C22C38/48;C22C38/50;C22C38/52;C22C38/54;C22C38/58;

  • 国家 EP

  • 入库时间 2022-08-24 21:56:09

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