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个人中心收藏查看我的收藏0有用+10播报讨论上传视频符合GB/T 1299-1985标准的低合金工具钢是一种符合GB/T 1299-1985标准的低合金工具钢，其碳含量0.85-0.95%、硅含量1.20-1.60%、铬含量0.95-1.25%。该材料具有高淬透性、淬硬性及回火稳定性，退火状态硬度为197-241HB，经820-860℃油冷淬火后硬度可达≥62HRC。在工业应用中主要用于制造低速切削工具及复杂形状耐磨工具，典型产品包括钻头、铰刀、丝锥等。钢材通过钢铁贸易平台流通，产品名称标注为"9CrSi/工具钢" [1]。材料标准GB/T 1299-1985
碳含量0.85-0.95%
淬火硬度≥62HRC
交货状态退火态
切削类型低速切削工具
硅含量1.20-1.60%

目录
1材料特性2工艺规范3应用领域4市场流通5质量控制6加工规范
材料特性
播报编辑的合金元素配比使其具备多重优异性能：碳元素提供基础硬度和耐磨性，硅元素增强抗回火软化能力铬含量提升淬透性，保证大截面工具硬度均匀性经淬火+低温回火后形成细密马氏体组织，硬度可达62HRC以上
工艺规范
播报编辑钢材加工处理需遵循特定工艺参数：退火工艺：采用780-800℃球化退火，硬度控制在197-241HB范围淬火温度：推荐820-860℃油冷，避免过热导致的晶粒粗化回火参数：根据工具服役条件选择150-250℃低温回火
应用领域
播报编辑在机械制造行业主要应用于三类工具制造：切削工具：包括麻花钻、铰刀、丝锥等低速切削刀具成型模具：用于耐磨性要求高的复杂形状工具量具制造：制造卡规、塞规等精密测量工具
市场流通
播报编辑该材料在中国工业品供应链中呈现以下特征：产品名称统一标注为"9CrSi/工具钢"主要流通渠道通过钢铁贸易平台进行批发供应标准化包装采用防锈油纸包裹，单支长度2.5-6米规格 [1]
质量控制
播报编辑材料出厂需通过三项核心检测：化学成分光谱分析，含碳量0.85-0.95%、硅1.20-1.60%、铬0.95-1.25%金相组织检测，球化级别需达到GB/T 1299规定的2-4级硬度梯度测试，淬火后≥62HRC
加工规范
播报编辑使用该材料时需特别注意：锻造加热温度需低于1150℃，防止过烧缺陷淬火后应及时回火，避免高残余应力导致开裂加工复杂刀具时建议采用分级淬火工艺的图片(1张)新手上路成长任务编辑入门编辑规则本人编辑我有疑问内容质疑在线客服官方贴吧意见反馈投诉建议举报不良信息未通过词条申诉投诉侵权信息封禁查询与解封©2025 Baidu 使用百度前必读 | 百科协议 | 隐私政策 | 百度百科合作平台 | 京ICP证030173号 京公网安备11000002000001号window.PAGE_DATA= {"lemmaId":7554668,"lemmaTitle":"","lemmaDesc":"符合GB/T 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1299-1985标准的低合金工具钢，其碳含量0.85-0.95%、硅含量1.20-1.60%、铬含量0.95-1.25%。该材料..."}window.__abbaidu_2020_subidgetf||(window.__abbaidu_2020_subidgetf=function(){return"01000000"}) 9crsi 9crsi是常用的低合金工具钢，具有较高的淬透性和淬硬性，以及较高的回火稳定性。可用于制造形状复杂、变形小、耐磨性高、低速切削的工具，如钻头、螺纹工具、铰刀、板牙、丝锥、搓丝板和滚丝轮等。中文名 9crsi 标    准 GBT 1299-1985 碳 C  0.85～0.95 硅 Si 1.20～1.60简介标准：GBT 1299-1985特性及适用范围量具刃具用钢，是常用的低合金工具钢，具有较高的淬透性和淬硬性，以及较高的回火稳定性。可用于制造形状复杂、变形小、耐磨性高、低速切削的工具，如钻头、螺纹工具、铰刀、板牙、丝锥、搓丝板和滚丝轮等。化学成份碳 C ：0.85～0.95硅 Si：1.20～1.609CRSI圆棒锰 Mn：0.30～0.60硫 S ：≤0.030磷 P ：≤0.030铬 Cr：0.95～1.25镍 Ni：允许残余含量≤0.25铜 Cu：允许残余含量≤0.30力学性能硬度 ：退火,241～197HB,压痕直径3.9～4.3mm;187～229HB(制造螺纹工具用);淬火,≥62HRC热处理编辑热处理规范：试样淬火820～860℃,油冷。交货状态钢材以退火状态交货。