TP2

Mass fraction wt%; Under 2.2, elements with specified lower and upper limits are alloying constituents; a single value is a minimum for copper and a maximum for other elements. A dash means unspecified; it is not entered as zero; Cu+Ag and Ni+Co are subject to combined ranges and are not converted into independent element ranges. The balance remains a balance; subtracting independent maxima does not establish a guaranteed range. Total impurities include all relevant impurities; The sum of listed elements is only a necessary condition and cannot replace complete impurity analysis. Product forms in the original document define the applicable wrought-product scope; they do not establish confirmed supply of cold-heading wire or final properties. Table 1, note 2: As/Sb/Bi need not be analyzed, but the supplier must guarantee that the limit is not exceeded.

Mass fraction wt%; GB/T 5231-2012, Table 1, row 20, designation C12200; scanned original PDF, PDF physical page 5 (printed page 2). Dashes mean unspecified, not zero. A combined minimum must not be split into independent elemental minima. Clause 2.2: single impurity values in the table are maxima. Unlisted element limits cannot be filled with zero using another edition. Note a to Table 1: analysis of As, Bi and Sb may be omitted, but the supplier must ensure that they do not exceed the table maxima. This standard specifies only wrought copper/copper-alloy designations and chemical composition; it does not establish actual cold-heading wire supply.