H85

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. Zn is the balance; Total impurities ≤0.3%. Table 2, note 1: Fe≤0.030% applies to nonmagnetic brass only where nonmagnetic performance is expressly required; Ordinary conditions are not automatically tightened.

Mass fraction wt%; GB/T5231—2012, Table 3, row 3, designation C23000. Zn is balance. Total table-listed impurities ≤0.3%, covering all impurities outside the principal constituents. A partial sum of listed elements does not replace complete impurity analysis. Clause 2.2: single values for other impurity elements are maxima; unlisted limits require purchaser-supplier agreement and are not replaced with zero. This standard covers wrought copper/copper-alloy designations and chemical composition only; it does not establish actual cold-heading wire supply.