GB/T 8005.1-2019 English PDF (GBT8005.1-2019)

This Part of GB/T 8005 defines the terms and definitions involved in aluminum and aluminum alloy products and processing techniques. This Part applies to aluminum and aluminum alloy products and processing techniques. 2 Products 2.1 Aluminum, alloys, alloying elements, impurities 2.1.1 Unalloyed aluminum Metals, which have an aluminum mass fraction of not less than 99.00% (1XXX series in wrought aluminum and aluminum alloy designations). 2.1.2 Refined aluminum The unalloyed aluminum, which has a mass fraction of aluminum not less than 99.90%. 2.1.3 High purity aluminum The unalloyed aluminum, which has a mass fraction of aluminum not less than 99.999%. 2.1.4 Alloy A metallic substance, which is composed of matrix metal elements (the element with the largest mass fraction), alloying elements, impurities. GB/T 8005.1-2019 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 11 of 57 2.1.5 Aluminum alloy An alloy, which takes aluminum as its matrix, AND the aluminum mass fraction of which is less than 99.00%. 2.1.6 Alloying element Metallic or non-metallic elements, which are added to the base aluminum, in order to make aluminum and aluminum alloys have certain characteristics. 2.1.7 Impurity Metal or non-metal elements that exist in aluminum and aluminum alloys BUT are not intentionally added or retained. 2.1.8 Aluminum master alloy Low melting point alloys, which use aluminum as the base, by adding one or several alloying elements, to solve the problems that the element is easy to burn, has a high melting point and is not easy to melt in, has a high density and is easy to segregate, OR to improve the properties of the alloy, through melting and other methods. They are mostly in the shape of waffle ingots, blocks, cakes or wires. Note: Aluminum master alloys can be divided into alloying type, grain refinement type, modified type, purification type, etc., according to their uses. 2.1.9 Additive for aluminum alloy A substance, which is added into the aluminum m...