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National Standard of the People's Republic of China
Aluminium and aluminium alloys -Terms and definitions
This standard applies to the terms and definitions of aluminium and aluminium alloys. The items of this standard are composed of four parts: 1 Materials, 2 Unprocessed products, 3 Pressure processed products; 4 Processes and treatment methods. 1 Materials 1.1 Alloy UDC 669.715: 001 GB 8005-87 A metal substance composed of base metal elements (the element with the largest content), alloying elements and impurities. Note: In this standard, all words involving content and content percentage are mass and mass percentage. 1.2 Alloying element Metal or non-metal element intentionally added or retained in the base metal to give the metal certain characteristics. 1.3 Impurity Metal or non-metal element present in the metal but not intentionally added or retained. 1.4 Wrought alloy alloy
Alloys that are mainly formed by plastic deformation. 1.5 Casting alloy
Alloys that are mainly used to produce castings.
1.6 Masteralloy
Alloys that are only used as additives to adjust the composition or control impurities. 1.7 Heat-treatable alloy Heat·treatablealloy Alloys that can be strengthened by appropriate heat treatment. 1.8 Non-heat-treatable alloy Non-heat-treatable alloy Alloys that can only be strengthened by cold addition but not significantly strengthened by heat treatment. 1.9 Pure aluminum Aluminum
Metal with aluminum content of at least 99.0% and the content of any other element does not exceed the limit value specified in the following table.
Other elements, short
Note: Other elements refer to Cr, Cu, Mg, Mn, Ni, Zn. Content,, not large
②If the content of chromium and manganese does not exceed 0.05%, the copper content is allowed to be 0.10%~0.20%. China Nonferrous Metals Industry Corporation approved on April 22, 198786
Implementation on May 1, 1988
GB 8005-87
1.10 Aluminum alloy Aluminum Aluminium alloys are metallic substances whose aluminium content exceeds that of any other element and which meet any of the following conditions: a. the content of at least one of the other elements or the content of iron plus silicon exceeds the limits specified in the table above. b. the total content of all other elements exceeds 1.0%. 1.11 Wrought aluminium magnesium alloy series Wrought aluminium alloys with magnesium as the main alloying element. 1.12 Wrought aluminium manganese alloy series Wrought aluminium alloys with manganese as the main alloying element. 1.13 Wrought aluminium copper alloy series Wrought aluminium copper alloy series Wrought aluminium alloys with copper as the main alloying element. 1.14 Wrought aluminium zinc alloy series Wrought aluminium alloys with zinc as the main alloying element. 1.15 Wrought aluminium silicon alloy series Wrought aluminium silicon alloy scries Wrought aluminium alloys with silicon as the main alloying element. 1.16 Wrought aluminium-magnesium-silicon alloy series Wrought aluminium alloy with magnesium and silicon as the main alloying elements and Mg-Si phase as the main strengthening phase. 1.17 Primary aluminium
Metallic aluminium obtained by reduction or decomposition of metal compounds. 1.18 Recondary aluminium Metallic aluminium obtained by at least one smelting or processing and then recovered and treated. 1.19 Refined aluminium
Metallic lead with a purity of not less than 99.95% obtained by special smelting methods. 2 Unwrought product 2.1 Unwrought product, Uawrought product A product obtained by smelting (or refining) and casting. For example, rolling ingots, extrusion ingots, forging ingots and remelting ingots. 2.2 Ingot for rolling Metal blanks formed by casting and used for rolling production. 2.3 Ingot for extrudingbZxz.net
Metal blanks produced by casting and extrusion. 2.4 Ingot for forging
Metal blanks produced by casting and forging. 2.5 Ingot for remeltingMetal blanks produced by casting and remelting after metallurgical treatment to adjust the composition and (or) eliminate certain impurities (metal or non-metal).
3 Pressure processed productWrought product3.1 Pressure processed productWrought product
Products obtained by hot and (or) cold plastic deformation, such as extrusion, forging, hot rolling, cold rolling or stretching (these processing methods can be used alone or in combination). According to the cross-sectional shape and delivery shape, it is divided into bars, wires, pipes, profiles, plates, strips, boxes, forgings, etc.
3.2 Rod bar
Along its longitudinal length, the cross section is solid pressure-pressed and linear. The cross-sectional shape (see Figure A1) of GB8005-87 includes round, elliptical, square, short, equilateral and regular polygonal. Square, short, equilateral triangle or regular polygonal products can have rounded corners along their longitudinal length. Short products include products with one set of opposite sides being convex arcs and the other set of opposite sides being equal length and parallel straight lines. The thickness of the round products should exceed 1 to 10 of the width.
3.3 Wire
Solid straight products with uniform cross-section along their entire longitudinal length, available in coils. The cross-sectional shape of the products is alternating with that of the bars (see Figure A1). The products are square, rectangular, equilateral diagonal or regular polygonal, and the corners may be rounded along their entire longitudinal length. Short products include products with one set of opposite sides being convex arcs and the other set of opposite sides being equal length and parallel to the center line. The thickness of the short products shall exceed 1·10 of the width.
3.4 Drawing Stock
A solid pressure-added product with uniform cross-section along its entire longitudinal length and delivered in rolls. The cross-sectional shape (see Figure A2) is approximately circular, triangular or regular polygonal. The diameter of the approximately circular product, the side length of the triangular product, and the diameter of the inscribed circle of the regular polygonal product should usually be greater than 7.0 mm. 3.5 Tube
A hollow pressure-added product with only one closed through hole along its entire longitudinal length, and with uniform wall thickness and cross-section, and a straight line shape Or delivered in rolls.
The cross-sectional shape (see Figure A3) is circular, elliptical, rectangular, square, equilateral triangle or regular polygon. For square, rectangular, equilateral triangle or regular polygon hollow products with rounded corners along the entire longitudinal length, as long as the inner hole and outer contour lines of the cross section are concentric, of the same shape and in the same orientation, they are also called pipes. Note: Hollow products that meet the above definition of pipes and are bent, threaded, drilled, reduced, expanded and processed into a cone are all called pipes. 3.6 Profile
A product with a uniform cross section along its entire longitudinal length and a cross-sectional shape different from that of bars, tubes, wires, plates or strips, and delivered in a straight line or in coils. According to the shape of the cross section, profiles can be divided into hollow profiles and solid profiles. Note: Products whose cross-sectional shape along their entire longitudinal length meets the above definition but is not uniform are also called profiles. 3.6.1 Hollow profile
A product with only one closed through hole, but a cross section different from that of a tube, or a product with multiple closed through holes (see Section A4). Note: When the through holes are fully closed, as long as the through hole area is not less than twice the square of the open distance, it is also called a hollow profile. 3.6.2 Solid profile
A product without any closed through holes in the cross section. 3.7 Sheet
Rolled products with rectangular cross-section and uniform thickness greater than 0.20mm. Usually the edges are sheared or sawn and delivered in a flat shape. The thickness does not exceed 1:10 of the width. Note: 1) Corrugated products, patterned products (surface with grooves, ribs, squares, ridges and rhombus patterns, etc.), clad products, products with trimmed edges and perforated surfaces made from the plates meeting the above definition are all called plates. 2) Products with uniform cross-sections made from the plates meeting the above definition are also called plates. 3.8 Strip
Rolled products with a pheasant-shaped cross section and a uniform thickness of more than 0.20 mm. Usually the edges are longitudinally cut and delivered in coils. The thickness does not exceed 1:10 of the width.
Note: Corrugated products, patterned products (surface with grooves, ribs, squares, ridges or rhombus patterns, etc.), clad products, products with trimmed edges and perforated surfaces made from the strip meeting the above definition are all called strips. 3.9 Foil
Rolled product with rectangular cross section and uniform thickness or less than 0.20 mm. 88
3.10 i Forging stock
GB8005—87
Applicable to the production of forgings, such as bars or any other square products with a cross section. Forgings can also be forged products, such as forged keys (see 2.4) 3.11 Forgings Forging
Production by forging or forging. The production is carried out in a hot-forged room, between two molds. 3.12 Blank
Metals with regular or irregular shapes. Mainly used for bending, punching, and round rings
3.14 Slug
Metals with uniform thickness, regular or irregular shapes, and no or no holes in the center are usually produced by punching and extrusion. [
Oil: Punching and extrusion rings can also be the most "medical" products. 4 Processes and treatment methods 4.1 Hot working
Plastic deformation of metal alloys in a certain range without producing hardening. 4.2 Cold working
Plastic deformation of metal alloys at a temperature that produces "hardening". 4.3 Strain Hardening
The process of changing the structure of a metal or alloy through cold treatment, making the metal or alloy have high strength and hardness, and usually reducing its ductility.
4.4 Annealing
The heat treatment of softening a metal or alloy by eliminating the hardening of the metal or alloy by cold treatment (production standard), or by causing the alloy to re-crystallize and (form) soluble components to precipitate from the solution. 4.5 Partial annealing The heat treatment of reducing the strength of a cold-treated alloy to an acceptable level without softening. 4.6 Tempen
The name given to a metal or alloy by a certain production process (e.g., pressure treatment and (or) heat treatment) to produce unique physical and (or) mechanical properties.
4.7Homogenizing
A process in which a metal or alloy is heated to a certain high temperature and kept at this temperature, mainly to reduce chemical bias by diffusion. 4.8Natural aging
A process in which the soluble components in a supersaturated solution are removed at a certain temperature to strengthen the alloy. 4.9Artificial aging
A heat treatment in which the soluble components in a solid solution are removed at a high temperature to oxidize the alloy. 4.10Quenching
A process in which the alloy, which has been heated to a high temperature, is placed in a liquid or gaseous medium or in contact with a liquid medium, and then cooled at a rate that allows the alloy to retain some or all of the soluble components in the solution. 4. Solution heat treatment. The alloy is heated to a certain appropriate temperature and kept at this temperature to allow the soluble components to fully enter the solid solution and remain in the solution in a state of dissolution. 4.12 Stabilizing
The heat treatment that promotes the crystallization, mechanical properties, and organizational structure to remain stable during use. 90
GB8005—87
Appendix A
(Supplement)
Figure A1 Cross-section of bars and wires
Figure A2 Cross-section of wire loops
GB8005
Cross-section of pipes
GB 8005—87
Cross-section of hollow profiles
Additional notes:
This standard was drafted by the Standard and Metrology Research Institute of China Nonferrous Metals Industry Corporation. The main drafter of this standard was Liu Yuanchao.8 Natural aging
A process of strengthening the alloy by removing the soluble components in the supersaturated solution at high temperature. 4.9 Artificial aging
A heat treatment of removing the soluble components in the solid solution at high temperature to make the alloy more soluble. 4.10 Quenc:hing
A process of cooling the alloy by placing the alloy in a liquid or gaseous medium or in contact with the liquid medium at a cooling rate that can retain some or all of the soluble components in the solution. 4. [Solution heat treatment. Solution heat treatment. The alloy is heated to a certain appropriate temperature, kept at this temperature, so that the soluble components fully enter the solid solution, and then the soluble components are retained in the solution in a state of being mixed. 4.12 Stabilizing
The heat treatment that promotes the crystallization, mechanical properties, and organizational structure of the product to maintain a stable internal force during use. 90
GB8005—87
Appendix A
(Supplement)
Figure A1 Cross-section of bars and wires
Figure A2 Cross-section of wire loops
GB8005
Cross-section of pipes
GB 8005—87
Cross-section of hollow profiles
Additional remarks:
This standard was drafted by the Standard and Metrology Research Institute of China Nonferrous Metals Industry Corporation. The drafter of this standard is Liu Yuanchao.8 Natural aging
A process of strengthening the alloy by removing the soluble components in the supersaturated solution at high temperature. 4.9 Artificial aging
A heat treatment of removing the soluble components in the solid solution at high temperature to make the alloy more soluble. 4.10 Quenc:hing
A process of cooling the alloy by placing the alloy in a liquid or gaseous medium or in contact with the liquid medium at a cooling rate that can retain some or all of the soluble components in the solution. 4. [Solution heat treatment. Solution heat treatment. The alloy is heated to a certain appropriate temperature, kept at this temperature, so that the soluble components fully enter the solid solution, and then the soluble components are retained in the solution in a state of being mixed. 4.12 Stabilizing
The heat treatment that promotes the crystallization, mechanical properties, and organizational structure of the product to maintain a stable internal force during use. 90
GB8005—87
Appendix A
(Supplement)
Figure A1 Cross-section of bars and wires
Figure A2 Cross-section of wire loops
GB8005
Cross-section of pipes
GB 8005—87
Cross-section of hollow profiles
Additional remarks:
This standard was drafted by the Standard and Metrology Research Institute of China Nonferrous Metals Industry Corporation. The drafter of this standard is Liu Yuanchao.
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