BMN40-1.5

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. Cu is the balance. Note 3: departures of the relevant extrema from Table 4 are permitted to ensure electrical properties, subject to confirmation of the conditions; This record retains the tabulated baseline. Note 1: Bi/As/Sb need not be analyzed; the supplier guarantees that the limit is not exceeded.

Mass fraction wt%; GB/T 5231-2012, Table 5, row 17, designation T71660; Scanned PDF, page 11. Cu is the balance. Ni+Co is a combined range and must not be split into independent Ni or Co ranges; A dash means unspecified; it is not entered as zero. Tabulated total impurities ≤0.9%, verified under the applicable table notes. This standard provides designation and composition requirements for wrought copper-nickel alloys; actual supply and cold-heading suitability require separate confirmation. Table 5, note c: for thermocouple applications, slight departures from specified composition maxima or minima are permitted to ensure electrical properties; Applicability must be confirmed separately for the intended use.