TZR0.15

Mass fraction wt%; GB/T 5231-2012, Table 1, row 28, designation C15000; original scan PDF page 5 (printed page 3). A dash indicates that the value is unspecified and shall not be treated as zero; The combined lower limit shall not be split into independent lower limits for each element. Standard Clause 2.2: Impurities listed as a single value in the table are maximum limits; Limits for elements not listed cannot be supplemented as zero by referring to other versions. Table 1 Note a: As, Bi, and Sb may not be analyzed, but the supplier must guarantee that they do not exceed the upper limits listed in the table. This standard only specifies the grades and chemical compositions of wrought copper and copper alloys; actual supply of cold heading wire shall not be inferred therefrom. Table 1 Note l: For this grade, Cu+Ag+Zr is not less than 99.9%. Table 1 Note l: For this grade, the sum of Cu+Ag+Zr is not less than 99.9%; The lower limit for Cu+Ag listed in the table remains 99.80%.