HMN55-3-1

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. Total impurities ≤1.5%. Table 2, note 1: Fe≤0.030% applies to nonmagnetic brass only where nonmagnetic performance is expressly required; Ordinary conditions are not automatically tightened. The nonmagnetic Fe maximum is incompatible with this row’s alloy Fe minimum and is not applied automatically; For nonmagnetic applications, the scope of the original text requires separate confirmation.

Mass fraction wt%; GB/T5231—2012, Table 3, row 55, designation T67320. Zn is the balance; A dash means unspecified; it is not entered as zero. Table 3 Note i: Pb≤0.1% for special use, Pb≤0.5% for general conditions; Must be selected according to the order application.