This standard specifies designation and chemical composition of wrought copper and copper alloy.
This standard is applicable to wrought product of copper and copper alloy produced by the wrought method with pressure and ingot casting and blank adopted for copper and copper alloy.
2 Chemical Composition
2.1 Designation and chemical composition of wrought copper and copper alloy shall meet those specified in Tables 1~5.
2.2 Content of alloy elements in Table 1~Table 5 has upper and lower limits and if the content is single value, minimum limit is for copper and maximum limit is for impurity element.
2.3 Impurity sum in Table 2~Table 5 is the sum of all impurity elements except the principal composition and mainly includes Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, O, P, Pb, S, Sb, Se, Si, Sn, Te and Zn.
2.4 The limit value of elements not specified in Table 1~Table 5 may be determined through the negotiation of the Supplier and Purchaser. Where copper or zinc is the element of allowance, the difference between all analyzed elements and 100% may be taken.
2.5 This standard is identical to ASTM standards for copper and copper alloy, thereinto, its code is identical to ASTM designation. The identical designation summary of American standards is detailed in Appendix A.
Foreword I 1 Scope 2 Chemical Composition Appendix A (Informative) Identical Designation of American Standard
1 Scope
This standard specifies designation and chemical composition of wrought copper and copper alloy.
This standard is applicable to wrought product of copper and copper alloy produced by the wrought method with pressure and ingot casting and blank adopted for copper and copper alloy.
2 Chemical Composition
2.1 Designation and chemical composition of wrought copper and copper alloy shall meet those specified in Tables 1~5.
2.2 Content of alloy elements in Table 1~Table 5 has upper and lower limits and if the content is single value, minimum limit is for copper and maximum limit is for impurity element.
2.3 Impurity sum in Table 2~Table 5 is the sum of all impurity elements except the principal composition and mainly includes Ag, As, Bi, Cd, Co, Cr, Fe, Mn, Ni, O, P, Pb, S, Sb, Se, Si, Sn, Te and Zn.
2.4 The limit value of elements not specified in Table 1~Table 5 may be determined through the negotiation of the Supplier and Purchaser. Where copper or zinc is the element of allowance, the difference between all analyzed elements and 100% may be taken.
2.5 This standard is identical to ASTM standards for copper and copper alloy, thereinto, its code is identical to ASTM designation. The identical designation summary of American standards is detailed in Appendix A.
Contents of GB/T 5231-2012
Foreword I
1 Scope
2 Chemical Composition
Appendix A (Informative) Identical Designation of American Standard
