1 Scope
This standard specifies the requirements, test methods, inspection rules, mark, package, transport and storage as well as contract for copper and copper-alloy cold-drawn rod and bar.
This standard is applicable to the circular, rectangular, rectangle and hexagonal copper and copper-alloy cold-drawn bars.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent correction to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated normative references, the latest edition is applicable to this standard.
GB/T 228 "Metallic Materials-Tensile Testing at Ambient Temperature "
GB/T 231.1 "Metallic Materials-Brinell Hardness Test"
GB/T 351 "Metallic Materials-Resistivity Measurement Method"
GB/T 3310 "Copper alloy bars—Ultrasonic Testing Method"
GB/T 5121 (All parts) "Methods for Chemical Analysis of copper and Copper Alloys"
GB/T 5231 "Wrought Copper and Copper Alloys Chemical Composition Limits and Forms of Wrought Products"
GB/T 8888 "Wrought Heavy Non-ferrous Metal Products-Packing, Marking, Transporting and Storing"
GB/T 10567 (All parts) "Wrought copper and copper alloys-Detection of Residual Stress-Ammonia Test"
YS/T 335 "Metallographic Determination Methods of Oxygen Content in Oxygen-free Copper”
YS/T 336 "Method of Fracture Test for Tube and Rod of Copper and Copper Alloys, Nickel and Nickel Alloys”
3 Requirements
3.1 Product Classification
3.1.1 Designation, State and Specification
The designation, state and specification of bar shall be in accordance with those specified in Table 1.Width to height ratio for square bar shall be simultaneously in accordance with those specified in Table 2.
Contents
Foreword I
1 Scope
2 Normative References
3 Requirements
4 Testing Method
5 Inspection Rules
6 Mark, Package, Transport, Storage and Quality Certificate
7 Order (or Contract) Content
Appendix A (Normative) Measurement Method of Twist Degree
