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个人中心高碳铬轴承钢播报讨论上传视频钢材类别展开2个同名词条收藏查看我的收藏0有用+10同义词GCr15（GCr15）一般指高碳铬轴承钢（钢材类别）高碳铬轴承钢，钢材。绝大多数轴承套圈和滚动体都采用专用钢材制造。用高碳铬轴承钢（GCr15和GCr15SiMn与ZGCr15和ZGCr15SiMn）制造套圈和滚动体，其零件硬度高。中文名高碳铬轴承钢
外文名High-carbon chromium bearing steel
别    名GCr15
采    用专用钢材制造
化学式GCr15和GCr15SiMn
优    点高的硬度和耐磨性高的尺寸稳定性，热处理变形小

目录
1基本信息2零件硬度3标准简介4目录5其他信息
基本信息
播报编辑标准号Standard No.GB/T 18254-2016中文标准名称Standard Title in Chinese高碳铬轴承钢英文标准名称Standard Title in EnglishHigh-carbon chromium bearing steel发布日期Issuance Date2016-08-09实施日期Execute Date2017-07-01首次发布日期First Issuance Date2000-11-17标准状态Standard State现行复审确认日期Review Affirmance Date-计划编号Plan No.-代替国标号Replaced StandardGB/T 18254-2002被代替国标号Replaced Standard-废止时间Revocatory Date-采用国际标准号Adopted International Standard No.-采标名称Adopted International Standard Name-采用程度Application Degree-采用国际标准Adopted International Standard无国际标准分类号(ICS)77.140.20中国标准分类号(CCS)H40标准类别Standard Sort产品标准页码Number of Pages38标准价格(元)Price(￥)39主管部门Governor中国国家标准化委员会归口单位Technical Committees全国钢标准化技术委员会起草单位Drafting Committee宝钢集团上海五钢有限公司
零件硬度
播报编辑用GCr15和ZGCr15材料制造的套圈和滚子为HRc61~65，钢球为HRc62~66；用GCr15SiMn和ZGCr15SiMn材料制造的套圈和滚子为HRc60~64,钢球为HRc60~66。用高碳钢铬轴承钢制造的轴承一般适用于工作温度为-40~130度范围，油与脂润滑正常。可满足一般机械的要求。高碳铬轴承钢轴承零件经高温回过火后，其适应工作温度可高达250度。
标准简介
播报编辑本标准规定了高碳铬轴承钢的定货内容、尺寸、外形、技术要求、试验方法、检验规则、包装、标志及质量证明书。本标准适用于制作轴承套圈和滚动体用高碳铬轴承钢热轧或锻制圆钢、盘条、冷拉（轧）圆钢（直条或盘条）和钢管。连铸钢不推荐做钢球用钢。经供需双方协商，也可供应其他品种、规格的钢材、钢坯，具体要求应在合同中注明。
目录
播报编辑高碳铬轴承钢1 范围2 规范性引用文件3 订货内容4 尺寸、外形4.1 尺寸4.2 外形5 技术要求5.1 牌号和化学成分5.2 冶炼方式5.3 交货状态5.4 钢材硬度5.5 顶锻5.6 低倍组织和断口5.7 非金属夹杂物5.8 显微孔隙5.9 显微组织5.10 碳化物不均匀性5.11 脱碳层5.12 表面质量6 试验方法7 检验规则8 标志、包装和质量证明书附录A （规范性附录）高碳铬轴承钢标准图谱
其他信息
播报编辑轴承钢被炼钢界人士称为钢中之王，高碳铬轴承钢是轴承钢中有一个大的种类，为制造轴承和轴承零件的最常用钢种。高碳铬轴承钢中最常用的是GCr15和GCr15SiMn,其中前一种是中国轴承业用量最多的。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= 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简介 GCr15是指一种合金含量较少的高碳铬轴承钢，经过淬火加低温回火后具有较高的硬度、均匀的组织、良好的耐磨性、高的接触疲劳性能。应用领域有机床的滚珠丝杆、涡轮喷气发动机喷嘴的喷口、柱塞、活门、衬套等。概述该钢冷加工塑性中等，切削性能一般，焊接性能差，对形成白点敏感性能大，有回火脆性。GCr15是一种最常用的高碳铬轴承钢，具有较高的淬透性，热处理后可获得高而均匀的硬度。耐磨性优于GCr9，接触疲劳强度高，有良好的尺寸稳定性和抗蚀性，冷变形塑性中等，切削性一般，焊接性差，对白点形成敏感，有第一类回火脆性。在滚珠轴承制造中，用以轧制壁厚12mm.外径<250mm的H级至C级的轴承套，直径25.4-50.8mm的钢球；直径<22mm的滚子，此外也可用作承受大负荷.要求高耐磨性.高弹性极限.高接触疲劳强度的其他机械零件及各种精密量具冷冲模等。执行标准中国GB/T18254-2016日本JIS G4805:1991美国ASTM A295:1998统一数字代号:B00150化学成分C：0.95-1.05Mn：0.20-0.40Si：0.15-0.35S：≤0.020P:≤0.027Cr:1.30-1.65Mo:≤0.10Ni:≤0.30Cu:≤0.25Ni+Cu≤0.50力学性能供货态硬度(HRC):25.8抗拉强度(MPa):861.3屈服强度(MPa):518.42断后伸长率(%):27.95抗弯强度(MPa):1821.61产品规格热处理其热处理制度为：钢棒退火，钢丝退火或830-840度油淬。热处理工艺参数：1.普通退火：790-810度加热，炉冷至650度后，空冷——HB170-2072.等温退火：790-810度加热，710-720度等温，空冷——HB207-2293.正 火：900-920度加热，空冷——HB270-3904.高温回火：650-700度加热，空冷——HB229-2855.淬 火：860度加热，油淬——HRC62-666.低温回火：150-170度回火，空冷——HRC61-667.碳氮共渗：820-830度共渗1.5-3小时，油淬，-60度至-70度深冷处理 +150度至+160回火，空冷——HRC≈67制造方法对轴承钢的冶炼质量要求很高，需要严格控制硫、磷和非金属夹杂物的含量和分布，因为非金属夹杂物的含量和分布对轴承钢的寿命影响很大。夹杂物量愈高，寿命就越短。为了改善冶炼质量，亦可采用真空冶炼，真空自耗精炼等新工艺来提高轴承钢的质量。用途用于制作各种轴承套圈和滚动体.例如:制作内燃机、电动机车、汽车、拖拉机、机床、轧钢机、钻探机、矿山机械、通用机械,以及高速旋转的个高载荷机械传动轴承的钢球、滚子和套圈. 除做滚珠、轴承套圈等外，有时也用来制造工具，如冲模、量具。