5754

GB/T 3190—1996, Table 1, mass fraction %; unspecified elements are not treated as zero. This standard specifies the chemical composition of wrought aluminium and aluminium alloys; it does not automatically establish cold-heading suitability, actual supply, or finished-product performance. Al is the balance; the original table gives no independent numerical range for Al. Individual and total limits for other impurities apply only to the other elements referred to in clause 4.3, not to the sum of all principal alloying elements; a missing impurity test is not zero.

Table 2 coupled limit: Mn+Cr0.10-0.60 (mass percent); this must be satisfied together with all individual limits. ; Al is the balance; no independent numerical minimum is specified; Subtracting listed maxima from 100% must not be used to invent a minimum. ; Each otherwise unlisted element is ≤0.05%; this is not automatically treated as a known limit for a specific element. ; The combined total of otherwise unlisted elements is ≤0.15%. ; Table 1 applicable forms: extruded bars and cold-drawn bars; Form codes correspond only to Table 1 of this edition and do not establish supply by Creation Group. ; Table 2 gives chemical composition in mass percent; Mechanical properties, dimensions and delivery condition require separate verification against the applicable original tables and order requirements.

Table 2 coupled limit: Mn+Cr0.10-0.60 (mass percent); this must be satisfied together with all individual limits. ; Al is the balance; no independent numerical minimum is specified; Subtracting listed maxima from 100% must not be used to invent a minimum. ; Each otherwise unlisted element is ≤0.05%; this is not automatically treated as a known limit for a specific element. ; The combined total of otherwise unlisted elements is ≤0.15%. ; Table 1 applicable form: cold-drawn bars; Form codes correspond only to Table 1 of this edition and do not establish supply by Creation Group. ; Table 2 gives chemical composition in mass percent; Mechanical properties, dimensions and delivery condition require separate verification against the applicable original tables and order requirements.