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个人中心收藏查看我的收藏0有用+10播报讨论上传视频截面为圆形的实心长条钢材Cr12圆钢是一种截面为圆形的实心长条钢材，属于高碳高铬冷作模具钢，通常以退火状态交货。其规格以直径毫米数表示，范围在5.5-250毫米之间，按加工方式分为热轧、锻制和冷拉三种，广泛应用于制造冷冲模、量规、拉丝模等低冲击负荷的冷作模具领域 [1]。该钢材主要成分为碳（2.00%～2.30%）和铬（11.50%～13.00%），具有高硬度、高淬透性及耐磨性，但冲击韧性较低。热处理采用950～1000℃油冷淬火与550℃回火工艺，淬火后硬度可达60HRC以上。产品可定制生产，国内外钢厂如抚钢、首钢等提供热轧或冷拉材质，部分供应商覆盖全国及出口市场 [1]。中文名
定    义截面为圆形的实心长条钢材
规    格以直径的毫米数表示
分    类热轧、锻制和冷拉三种

目录
1产品介绍2适用范围3交货状态
产品介绍
播报编辑热轧圆钢的规格为5.5-250毫米。其中：5.5-25毫米的小圆钢大多以直条成捆供应，常用作钢筋、螺栓及各种机械零件；大于25毫米的圆钢。化学成份碳 C ：2.00～2.30硅 Si：≤0.40锰 Mn：≤0.40硫 S ：≤0.030磷 P ：≤0.030铬 Cr：11.50～13.00镍 Ni：允许残余含量≤0.25铜 Cu：允许残余含量≤0.30钴 Co：≤1.00硬度退火,269～217HB,压痕直径3.7～4.1mm;淬火,≥60HRC热处理规范（1）淬火,950～1000℃油冷;（2）淬火980℃,油冷,180℃回火2h。金相组织回火马氏体+未溶碳化物+残余奥氏体。Cr12淬火温度Cr12圆钢淬火950～1000℃油淬，二次回火550℃高温淬火1100-1150℃，低温淬火960-1050℃，回火550-650℃，前者有二次硬化现象，回火不少于2次，每次2h,回火后可空冷或油冷，高温淬火前最好进行2次预热，在高温加热时，需采取保护措施，以防氧化。
适用范围
播报编辑应用广泛的冷作模具钢，具有高强度、较好的淬透性和良好的耐磨性，但冲击韧性差。主要用作承受冲击负荷较小，要求高耐磨的冷冲模及冲头、冷切剪刀、钻套、量规、拉丝模、压印模、搓丝板、拉延模和螺纹滚模等。
交货状态
播报编辑钢材以退火状态交货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":1110557,"lemmaTitle":"","lemmaDesc":"截面为圆形的实心长条钢材","lemmaType":0,"uid":558618930,"uname":"tgb00005","createTime":1355539405,"updateTime":1750272720,"isDefault":0,"isDeleted":0,"rank":1,"extData":{"isBaikeV6":1,"isFrontV6":1,"isSapp":0,"isWaitForPersonal":false,"kpdClassify":[{"id":337502,"name":"工业产品"}],"lemmaId":9773345,"lemma_id":9773345,"newEditor":1,"pass_count":14,"subLemmaId":9900341,"updateTime":1750272721,"wapEdit":0},"extFlag":0,"versionId":648441542,"versionUid":6863170397,"versionUname":"社恐安全区","versionCreateTime":1750272718,"catalog":[{"level":1,"title":"产品介绍","index":"1","uuid":"gn60im3dq5","height":28},{"level":1,"title":"适用范围","index":"2","uuid":"gn60im3ep7","height":28},{"level":1,"title":"交货状态","index":"3","uuid":"gn60im3esc","height":28}],"abstract":[],"reference":[{"type":1,"title":"-厂家","site":"化工仪器网","publishDate":"2018-04-14","index":1,"uuid":"i2k2epoppc","encodeUrl":"533aYdO6cr3_z3kATPGDz6_xO3qWMd_-u7PQU-ZzzqIPmGapB4OrWYA37YZosPRoGUTEtp5ncukGl-SvFR8QqqZJLfI0QLIim3b-VC2ajeO6"}],"modules":{"adManager":{"data":{"wapRelatedBusiness":1}},"discussion":{"showHelpEdit":1},"globalConfig":{"data":{"serviceAdLemmaCategory":[337597,337474]}},"paper":{"switch":false},"pinzhuan":{}},"card":{"type":243,"left":[{"key":"name","title":"中文名","isArray":false,"delimiter":"","data":[{"dataType":"text","text":[{"tag":"text","text":""}]}]},{"key":"definition","title":"定义","isArray":false,"delimiter":"","data":[{"dataType":"text","text":[{"tag":"text","text":"截面为圆形的实心长条钢材"}]}]}],"right":[{"key":"customDefault","title":"规格","isArray":false,"delimiter":"","data":[{"dataType":"enum","text":[{"tag":"text","text":"以直径的毫米数表示"}],"value":"以直径的毫米数表示"}]},{"key":"classification","title":"分类","isArray":false,"delimiter":"","data":[{"dataType":"text","text":[{"tag":"text","text":"热轧、锻制和冷拉三种"}]}]}]},"lemmaCnt":1,"tips":{"isPolyseme":0},"encodeLemmaId":"7a42871d7f58cefd78e93f57","versionUk":"zEIZARqu5I9WhLJ8t1hDZQ","description":"Cr12圆钢是一种截面为圆形的实心长条钢材，属于高碳高铬冷作模具钢，通常以退火状态交货。其规格以直径毫米数表示，范围在5.5-250毫米之间，按加工方式分为热轧..."}window.__abbaidu_2020_subidgetf||(window.__abbaidu_2020_subidgetf=function(){return"01000000"}) 详细信息 产地/厂家宝特材质C12规格12-200方法热作分类优特钢  模具钢   模具钢  钢号         规格        产地          可供数量（吨）    交货地Cr12     10-14圆    大冶/上钢五厂    30吨            上海宝山区Cr12     15圆       大冶/上钢五厂    30吨            上海宝山区Cr12     16圆       大冶/上钢五厂    30吨            上海宝山区Cr12     26圆       大冶/上钢五厂    30吨            上海宝山区Cr12     40圆       大冶/上钢五厂    30吨            上海宝山区Cr12     45圆       大冶/上钢五厂    30吨            上海宝山区Cr12     48圆       大冶/上钢五厂    30吨            上海宝山区Cr12     30圆       大冶/上钢五厂    30吨            上海宝山区Cr12     52圆       大冶/上钢五厂    30吨            上海宝山区Cr12     55圆       大冶/上钢五厂    30吨            上海宝山区Cr12     60圆       大冶/上钢五厂    30吨            上海宝山区Cr12     65圆       大冶/上钢五厂    30吨            上海宝山区Cr12     70圆       大冶/上钢五厂    30吨            上海宝山区Cr12     75圆       大冶/上钢五厂    30吨            上海宝山区Cr12     80圆       大冶/上钢五厂    30吨            上海宝山区Cr12     85圆       大冶/上钢五厂    30吨            上海宝山区Cr12     90圆       大冶/上钢五厂    30吨            上海宝山区Cr12     115圆       上钢五厂        30吨            上海宝山区Cr12     135圆       上钢五厂        30吨            上海宝山区Cr12     140圆       上钢五厂        30吨            上海宝山区Cr12     145圆       上钢五厂        30吨            上海宝山区Cr12     130圆       上钢五厂        30吨            上海宝山区Cr12     160圆       上钢五厂        30吨            上海宝山区Cr12     170圆       上钢五厂        30吨            上海宝山区Cr12     180圆       上钢五厂        30吨            上海宝山区Cr12     190圆       上钢五厂        30吨            上海宝山区