EN 12168-2016 铜和铜合金.高速切削用空心棒材

  EN 12168-2016 铜和铜合金.高速切削用空心棒材
  
  Copper and copper alloys. Hollow rod for free machining purposes
  
  BS EN 12168:2016
  
  1 Scope
  
  This European Standard specifies the composition, property requirements and dimensional tolerances for copper alloy hollow rod, finally produced by drawing or extruding, specifically intended for free machining purposes.
  
  NOTE Hollow products having an outside diameter greater than 80 mm and/or a wall thickness less than 2 mm are specified in EN 12449.
  
  The sampling procedures, the methods of test for verification of conformity to the requirements of this European Standard, are also specified.
  
  4 Designations
  
  4.1 Material
  
  4.2 Material condition
  
  4.3 Product
  
  6 Requirements
  
  6.1 Composition
  
  6.2 Mechanical properties
  
  6.3 Resistance to dezincification
  
  6.4 Residual stress level
  
  6.5 Dimensions and tolerances
  
  6.6 Surface quality
  
  7 Sampling
  
  7.1 General
  
  7.2 Analysis
  
  7.3 Mechanical tests
  
  7.4 Dezincification resistance and stress corrosion resistance tests
  
  8 Test methods
  
  8.1 Analysis
  
  8.2 Tensile test
  
  8.3 Hardness test
  
  8.4 Dezincification resistance test
  
  8.5 Stress corrosion resistance test
  
  8.6 Retests
  
  8.7 Rounding of results
  
  9 Declaration of conformity and inspection documentation
  
  9.1 Declaration of conformity
  
  9.2 Inspection documentation
  
  1范围
  
  本欧洲标准规定了通过拉伸或挤压最终生产的铜合金空心杆的成分、性能要求和尺寸公差,专门用于自由加工目的。
  
  注:EN 12449规定了外径大于80 mm和/或壁厚小于2 mm的空心产品。
  
  还规定了取样程序和验证是否符合本欧洲标准要求的试验方法。
  
  4名称
  
  4.1材料
  
  4.2物质条件
  
  4.3产品
  
  6要求
  
  6.1组成
  
  6.2机械性能
  
  6.3抗脱锌性
  
  6.4残余应力水平
  
  6.5尺寸和公差
  
  6.6表面质量
  
  7抽样
  
  7.1总则
  
  7.2分析
  
  7.3机械试验
  
  7.4抗脱锌和抗应力腐蚀试验
  
  8试验方法
  
  8.1分析
  
  8.2拉伸试验
  
  8.3硬度试验
  
  8.4抗脱锌试验
  
  8.5抗应力腐蚀试验
  
  8.6重新测试
  
  8.7结果的四舍五入
  
  9符合性声明和检验文件
  
  9.1符合性声明
  
  9.2检验文件
  

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