1 Scope
This standard specifies chemical composition of wrought aluminium and aluminium alloy.
This standard is applicable to aluminium and aluminium alloy products (plate, strip, foil, pipe, stick, section, line and forging) produced with press working, and cast ingot and blanks used for them.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these labels are applied or not. For undated references, the latest edition of the normative document is applicable to these specifications.
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 8170 Rules for rounding off of numerical values
GB/T 16474 Wrought aluminium and aluminium alloy — Designation system
GB/T 20975 Chemical analysis methods of aluminium and aluminium alloys (all parts)
3 Requirements
3.1 Chemical composition
3.1.1 The chemical compositions of wrought aluminiums and aluminium alloys shall meet the requirements of Table 1 and Table 2. The column "others" indicates the metallic element not listed in the table. The content in the table, as single numerical value, is the minimal limit for aluminium; it is maximal limit for other elements. the denotation of limit value is as:
Limit Value of the total ferrum and silicon with the designation 1XXX 0.ΧΧ or 1.XX;
Other Limit Values:
