6500 Aluminum Alloy

Corrosion Resistance: Exhibits good corrosion resistance in marine environments and other corrosive settings.

Machinability: Shows excellent machinability in the T6 temper, suitable for various machining methods such as welding, turning, milling, and drilling.

Formability: Exhibits good formability in the T4 temper, making it suitable for forming processes like stamping and bending.

Heat Treatment: Its mechanical properties can be enhanced through heat treatment, with common tempers including T6 (solution heat-treated and artificially aged) and T4 (solution heat-treated and naturally aged).

Applications: Widely used in aerospace, automotive, marine, construction, machinery parts, and electronic products. Common applications include structural components, hull materials, bicycle frames, pressure vessels, and power transmission lines.

6500 series aluminum alloy plates/sheets:

Production Process

Smelting and Casting

Smelting: Aluminum ingots and alloying elements (such as magnesium, silicon, zinc, etc.) are heated to a liquid state in a furnace according to predetermined ratios, ensuring uniformity and purity of the composition.

Casting: After smelting, the molten aluminum undergoes refining, degassing, and filtration processes before being cast into aluminum alloy ingots. These ingots will be used for subsequent processing.

Homogenization

Homogenization Annealing: The ingots undergo homogenization annealing, held at temperatures between 500°C and 600°C for a period of time to eliminate segregation produced during casting and improve the uniformity of the alloy structure.

Hot Rolling

Heating: The homogenized ingots are heated to suitable rolling temperatures, typically between 450°C and 500°C.

Initial Rolling: The heated ingots are hot-rolled through several passes to produce thick plates. After initial rolling, the plates are usually quite thick.

Intermediate and Final Rolling: The plates are further rolled in intermediate and final rolling stages to gradually reduce thickness to the desired level. Hot rolling improves the internal structure of the plates and enhances mechanical properties.

Cold Rolling

Cold Rolling Process: To achieve more precise thickness and better surface finish, the hot-rolled plates can undergo cold rolling. Cold rolling not only reduces the thickness but also enhances the strength and hardness of the plates.

Heat Treatment

Solution Treatment: After cold rolling, the plates may require solution treatment, where they are heated to approximately 540°C, followed by rapid cooling to evenly distribute alloying elements and improve material toughness.

Aging Treatment: Aging treatment is conducted at around 160°C to precipitate the strengthening phases in the alloy, achieving the desired strength level.

Surface Treatment

Surface Cleaning and Finishing: Post-production plates undergo surface treatments such as pickling, brushing, and removal of rolling oil to ensure surface smoothness and cleanliness.

Anodizing: Plates can be anodized as needed to enhance corrosion resistance and aesthetic properties.

Standards and Specifications

The 6500 series is not classified under international standards, but its production and testing adhere to the internationally recognized ISO 9001 quality management standard, with sheet production referencing the ASTM B209 standard. It has a wide range of applications, meeting the needs of various fields such as aerospace, construction, and industry.

Main Application Areas

Aerospace: Used to manufacture aircraft fuselages, structural components, and fuel tanks.

Automotive Industry: Used for car bodies, doors, engine hoods, and other components.

Construction Engineering: Used for curtain walls, roofing materials, and structural components.

6500 series aluminum alloy profiles

Production Process

Smelting and Casting

Smelting: Aluminum ingots and alloy elements (such as magnesium, silicon, zinc, etc.) are heated in a furnace until molten to ensure uniform alloy composition.

Casting: The molten aluminum undergoes refining, degassing, and filtration before being cast into ingots, which will be used for subsequent extrusion processing.

Homogenization

Homogenization Annealing: The ingots are annealed at high temperatures for a period of time to eliminate segregation during casting and to improve the alloy's uniformity and performance.

Extrusion Molding

Heating: The homogenized ingots are heated to extrusion temperatures (typically between 400°C and 500°C).

Extrusion: The heated ingots are extruded through a die to form profiles. During the extrusion process, the aluminum is forced through the mold to create the desired cross-sectional shape.

Heat Treatment

Solution Treatment: After extrusion, the profiles are heated to around 540°C for a certain period of time and then rapidly cooled to enhance strength and toughness.

Aging Treatment: The profiles are then aged at temperatures between 160°C and 200°C to further improve strength and hardness.

Surface Treatment

Surface Cleaning: Profiles are cleaned to remove oxides and impurities, ensuring a smooth surface.

Anodizing: Profiles can undergo anodizing to improve corrosion resistance and provide a decorative finish.

Powder Coating or Electrophoresis: Based on requirements, profiles can be coated to enhance appearance and protective properties.

Specifications and Dimensions

Standard Profiles

Angle: Common sizes range from 10mm×10mm to 100mm×100mm, with thicknesses from 1mm to 10mm.

Channel: Common widths range from 10mm to 150mm, depths from 10mm to 50mm, and thicknesses from 1mm to 10mm.

T-Slot: Common widths range from 10mm to 100mm, with thicknesses from 1mm to 10mm.

H-Beam/I-Beam: Common flange widths range from 20mm to 200mm, with thicknesses from 2mm to 20mm.

Round Tube: Diameter ranges from 10mm to 300mm, with wall thicknesses from 1mm to 20mm.

Square/Rectangular Tube: Sizes range from 10mm×10mm to 200mm×200mm, with wall thicknesses from 1mm to 20mm.

Solid Rods: Round rods with diameters from 10mm to 300mm. Square and flat rods can be customized according to requirements.

Custom Profiles

Special Cross-Sections: Custom profiles with complex cross-sections can be produced based on client requirements, such as special brackets or decorative profiles.

Length

Standard Length: Profiles are typically supplied in standard lengths of 3 meters or 6 meters, but specific lengths can be customized according to client needs.

Delivery Conditions

T6 Condition: Profiles undergo solution treatment and artificial aging, providing high strength and good mechanical properties for high-strength applications.

T5 Condition: Profiles are directly aged after extrusion, offering medium strength and good workability.

Standards and Specifications

The 6500 series is not classified under international standards, but its production and testing adhere to the internationally recognized ISO 9001 quality management standard, with sheet production referencing the ASTM B209 standard. It has a wide range of applications, meeting the needs of various fields such as aerospace, construction, and industry.

Application Areas

Construction: Used for building frames, curtain wall systems, window frames, and decorative strips.

Industry: Used for machine frames, workbenches, supports, and conveyor belts.

Automotive: Used for body structures, support components, and trim.

Aerospace: Used for aircraft structural components, fuselage supports, and accessories.

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