This standard specifies the requirements, test methods, inspection rules, marking, packing, transportation, storage and quality certificate, and contents of contract (or order) of the aluminium and aluminium alloy extruded bars and rods for general industrial use.
This standard is applicable to the bars and rods of round cross section (hereinafter referred to as "round rods"), the bars and rods of square cross section (hereinafter referred to as "square rods") and the bars and rods of regular hexagonal cross section (hereinafter referred to as "hexagonal rods").
2 Normative References
The following documents are essential for the application of this standard. For dated reference, only the dated editions are applicable to this standard. For undated references, the latest edition of the normative document (including all amendments) referred to applies.
GB/T 228 "Metallic Materials-Tensile Testing at Ambient Temperature"
GB/T 3190 "Wrought Aluminium and Aluminium Alloys-Chemical Composition Limits"
GB 3199 "Wrought Aluminium and Aluminium Alloy Products-Packing, Marking, Transporting and Storing"
GB/T 3246.1 "Wrought Aluminium and Aluminium Alloys Products Inspection Method for Structure"
GB/T 3246.2 "Wrought Aluminium and Aluminium Alloys Products Inspection Method for Macrostructure"
GB/T 6519 "Process for Ultrasonic Inspection of Wrought Aluminum Alloy Products"
GB/T 2039 "Metallic Materials—Creep and Stress-rupture Test in Tension"
GB/T 7999 "Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys"
GB/T 16865 "Test Pieces for Tensile Test for Wrought Aluminum and Magnesium Alloy Products"
GB/T 17432 "Methods of Sampling for Analysing the Chemical Composition of Wrought Aluminum and Aluminum Alloy"
GB/T 20975 "Methods for Chemical Analysis of Aluminium and Aluminium Alloys"
3 Requirements
3.1 Product classification
3.1.1 Designation, category, condition and specification
The designation, category, condition and specification of bars and rods shall be in accordance with those specified in Table 1. If the purchaser needs bars and rods of other designations, conditions or specifications, the designation, condition and specification shall be decided between the supplier and the purchaser through negotiation and shall be noted in the contract (or order).
