H70A

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 exclude elements specified as alloying constituents; all listed elements must not simply be added together. Corresponding foreign grade designation shown in the original table: C26130; Note 4 includes Ni, other than the principal constituents, in Cu, subject to the combined Cu+Ni limit; This does not establish automatic substitution across standards. Note 5/6/7 requires Cu and the listed elements to total ≥99.7%; This includes a balance element; independent limits cannot be used to derive a guaranteed range. Table 2, note 1: Fe≤0.030% applies to nonmagnetic brass only where nonmagnetic performance is expressly required; Ordinary conditions are not automatically tightened.