GB/T 3190-1996 Wrought aluminium and aluminium alloys - Chemical composition limits
1 Scope
This standard specifies the chemical composition of wrought aluminium and aluminium alloys.
This standard is applicable to wrought aluminium and aluminium alloy products (sheets, strips, foils, tubes, bars, profiles, wires and forgings) produced by pressure working, as well as the ingots and slabs used.
2 Normative references
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. All editions indicated are valid at the time of publication of this standard. All normative references are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the normative standards indicated below.
GB/T 6987-1986 Methods for chemical analysis of aluminium and aluminium alloys
GB/T 8005-1987 Aluminium and aluminium alloys - Terms and definitions
GB/T 8170-1987 Rules for rounding off of numerical values
GB/T 16474-1996 Wrought aluminium and aluminium alloy - Designation system
3 Requirements
3.1 Chemical composition
The chemical composition of wrought aluminium and aluminium alloys shall meet the requirements in Table 1.
3.2 Sampling
3.2.1 The manufacturer shall take specimens for chemical composition analysis from the melt per heat. For continuous casting, specimens shall be taken at least once per shift.
3.2.2 The user shall take specimens for chemical composition analysis from the processed products. When sampling, the samples shall be as typical as possible. The samples shall be cleaned, removed of oxide scale, cladding, dirt, oil, grease and lubricants, and protected from composition changes due to corrosion, oxidation or contamination.
3.2.3 Duplicate specimens shall be taken: one for analysis and one for reference. The retention period of the reference sample is: not less than 6 months for pure aluminium, and not less than 1 year for aluminium alloys.
3.3 Component analysis
Contents
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Others
Annex A (Informative) Cross-reference of new and old designations
GB/T 3190-1996 Wrought aluminium and aluminium alloys - Chemical composition limits
1 Scope
This standard specifies the chemical composition of wrought aluminium and aluminium alloys.
This standard is applicable to wrought aluminium and aluminium alloy products (sheets, strips, foils, tubes, bars, profiles, wires and forgings) produced by pressure working, as well as the ingots and slabs used.
2 Normative references
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. All editions indicated are valid at the time of publication of this standard. All normative references are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the normative standards indicated below.
GB/T 6987-1986 Methods for chemical analysis of aluminium and aluminium alloys
GB/T 8005-1987 Aluminium and aluminium alloys - Terms and definitions
GB/T 8170-1987 Rules for rounding off of numerical values
GB/T 16474-1996 Wrought aluminium and aluminium alloy - Designation system
3 Requirements
3.1 Chemical composition
The chemical composition of wrought aluminium and aluminium alloys shall meet the requirements in Table 1.
3.2 Sampling
3.2.1 The manufacturer shall take specimens for chemical composition analysis from the melt per heat. For continuous casting, specimens shall be taken at least once per shift.
3.2.2 The user shall take specimens for chemical composition analysis from the processed products. When sampling, the samples shall be as typical as possible. The samples shall be cleaned, removed of oxide scale, cladding, dirt, oil, grease and lubricants, and protected from composition changes due to corrosion, oxidation or contamination.
3.2.3 Duplicate specimens shall be taken: one for analysis and one for reference. The retention period of the reference sample is: not less than 6 months for pure aluminium, and not less than 1 year for aluminium alloys.
3.3 Component analysis
Contents of GB/T 3190-1996
Contents
Foreword i
1 Scope
2 Normative references
3 Requirements
4 Others
Annex A (Informative) Cross-reference of new and old designations
