QTE0.5

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, except for QFe2.5 with an explicit Cu minimum and QTe0.5 with a minimum combined Cu+Te+Sn. Note 1: As/Sb/Bi need not be analyzed, but the supplier must guarantee that the specified limits are not exceeded. The copper minimum of 99.90 in Table 3 includes Te+Sn; Sn has no independent limit listed; cannot be treated as zero.