This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificates and order (contract) contents of the extrusion rods and bars of aluminium and aluminium alloys.
This standard is applicable to extruded round rods, square rods and hexagonal rods of aluminium and aluminium alloys (hereinafter referred to as "rods and bars").
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2039 Metallic Materials — Uniaxial Creep Testing Method in Tension
GB/T 3190 Wrought Aluminium and Aluminium Alloy — Chemical composition
GB/T 3199 Wrought Aluminium and Aluminium Alloy Products — Packing Marking Transporting and Storing
GB/T 3246.1 Inspection Method for Structure of Wrought Aluminum and Aluminum Alloy Products — Part 1: Inspection Method for Microstructure
GB/T 3246.2 Inspection Method for Structure of Wrought Aluminum and Aluminum Alloy Products — Part 2: Inspection Method for Macrostructure
GB/T 6519 Ultrasonic Inspection of Wrought Aluminium and Magnesium Alloy Products
GB/T 7999 Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys
GB/T 8170 Rules of Rounding Off for Numerical Values & Expression and Judgment of Limiting Values
GB/T 16475-2008 Temper Designation System for Wrought Aluminium and Aluminium Alloy
GB/T 16865 Test Pieces and Method for Tensile Test for Wrought Aluminium and Magnesium Alloys Products
GB/T 17432 Methods of Sampling for Analyzing the Chemical Composition of Wrought Aluminum and Aluminum Alloy
GB/T 20975 (all parts) Methods for chemical analysis of aluminium and aluminium alloys
3 Requirements
3.1 Product classification
3.1.1 Designation, supply states, dimension and specification
The designation, supply state, dimension and specification of rods and bars shall meet those specified in Table 1. Rods and bars of other designations, supply states, dimensions and specifications, if necessary, shall be determined by the supplier and the purchaser through negotiation and be indicated in the order (contract).
