3 Inch Aluminum Disc

A 3 Inch Aluminum Disc is a circular aluminum blank with a nominal diameter of 3 inches, equivalent to 76.2 mm. It is widely used in metal stamping, equipment fabrication, welding projects, lighting components, small machine parts, decorative hardware, cookware accessories, electrical applications, and DIY crafts. Common thicknesses range from 0.063 inches to 0.25 inches, while custom thickness and diameter options are also available.

Diameter: 3 in / 76.2 mm / 80 mm custom
Thickness: 0.063 in to 0.25 in+
Alloys: 1000, 3000, 5000 Series
Surface: Mill Finish / Custom
Supply TypeFactory Direct Export

3 Inch Aluminum Disc Specifications

As a primary manufacturer, we do not just sell off-the-shelf products; we customize them to your exact engineering requirements. Our standard 3-inch discs typically range in thickness from 0.063 inches (14-gauge) to 0.25 inches, though custom thicknesses are always available.

Buyers looking for 3 in disc diameter industrial metal & alloy discs usually demand strict alloy purity. We primarily process these discs in 1000, 3000, and 5000 series aluminum.

Item	Available Options
Product Name	3 Inch Aluminum Disc / 3 Inch Aluminum Circle / 3 Inch Aluminum Disk
Standard Diameter	3 in / 76.2 mm
Custom Diameter	50 mm–1, 500 mm or produced according to customer drawing
Thickness Range	0.063 in–0.25 in; customized thickness available
Common Thicknesses	1 mm, 1.5 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 6.35 mm
Available Alloys	1050, 1060, 1070, 1100, 3003, 3004, 5052, 5083, 6061
Tempers	O, H12, H14, H16, H18, H32, H34, T4, T6
Surface Options	Mill finish, brushed, anodized, coated, protective film
Edge Options	Deburred edge, smooth edge, square edge, chamfered edge
Processing Methods	Stamping, laser cutting, waterjet cutting, CNC cutting, punching
Documentation	Mill Test Certificate available upon request
Export Packing	PE film, paper interleaf, wooden case, plywood pallet, seaworthy export packaging

For larger round blanks, please visit our aluminum circle products. For stamped, spun, or cookware-related components, you may also review our deep drawing aluminum circles.

3 Inch Aluminum Disk Material Options

A 3 Inch Aluminum Disk can be produced in different alloys according to the required forming performance, strength, weldability, corrosion resistance, conductivity, surface appearance, and cost target. Choosing the right aluminum grade can improve processing efficiency and reduce unnecessary material expense.

Aluminum Alloy	Key Characteristics	Typical Uses
1050 / 1060	High aluminum purity, excellent formability, good electrical and thermal conductivity	Metal stamping, spinning, crafts, lighting, electrical parts
1100	Soft, corrosion resistant, easy to form and process	Decorative components, chemical equipment, general metalworking
3003	Better strength than 1xxx series with good formability	Cookware blanks, covers, lighting components, general fabrication
5052	Good strength, corrosion resistance, and weldability	Marine parts, transportation, industrial fabrication, weld-on discs
5083	High strength and excellent marine corrosion resistance	Marine hardware, structural parts, tanks, industrial equipment
6061	Good strength, machinability, and structural performance	CNC-machined parts, brackets, fixtures, mechanical components

For soft aluminum blanks intended for forming operations, please see our 1060 aluminum circle and 3003 aluminum circle pages.

Common Applications for 3-Inch Discs

Because we supply these blanks to various industries, we have seen them used in a multitude of ways:

Precision Metal Stamping: Often referred to as 3 inch aluminum circles, these blanks are fed into stamping presses to create deep-drawn parts, industrial casings, and custom tags. The burr-free edges we provide save our clients secondary machining costs.
Welding and Fabrication: For pipe capping, tank fabrication, or custom automotive parts, our aluminum disc weld on size 3 inch offers a clean, mill-finish surface that requires zero prep work before welding.
Machining and Engineering: Engineers frequently order every 3 inch aluminum disk with a stringent flatness tolerance to ensure they lie perfectly flat on CNC lathe beds for further machining.

Export Packaging for Aluminum Discs

Reliable packaging is essential when aluminum discs are shipped internationally. During sea and land transport, exposure to moisture, salt air, dust, and impact can affect the surface condition of the material. Haomei Aluminum uses export packaging designed to help keep aluminum circles clean, dry, and protected from our warehouse to your destination.

Each order is packed according to the disc size, temper, surface requirement, shipment method, and destination. Standard export protection includes paper interleaving between discs, moisture-resistant plastic wrapping, reinforced outer packing, and fumigated wooden pallets for container loading. Pallets are securely strapped and wrapped to reduce movement during handling and long-distance transit.

We supply aluminum discs to customers in a wide range of manufacturing markets. Recent export destinations include:

United States Aluminum discs for automotive parts, cookware, lighting, and aerospace-related component production.
Germany Precision stamping, deep drawing, engineering components, and industrial fabrication applications.
United Arab Emirates Construction products, pipe fittings, ventilation components, and metal fabrication projects.
Australia 5052 aluminum disc applications for marine environments, transport equipment, and durable fabricated products.
South Korea Aluminum circles for appliances, electronics, cookware, and precision manufacturing.

Before shipment, our team checks packaging condition, product identification, quantity, and loading arrangement. If you have specific requirements for pallet dimensions, labeling, container loading, export documents, or corrosion protection, please share them with us when requesting a quote.

Popular Aluminum Disc Sizes from Haomei Aluminum

4 Aluminum Disc Blanks

Compact aluminum discs for crafts, small stamping parts, lighting products, decorative applications, and fabricated components.

12 Inch Aluminum Disc

A popular size for cookware, signage, spun components, equipment covers, lighting reflectors, and general metalworking

24 Inch Aluminum Disc

Large aluminum circle blanks used for cookware production, industrial covers, tank ends, spun parts, and custom fabrication.

Request a Quote for 3 Inch Aluminum Disc

Need a 3 Inch Aluminum Disc, 3 Inch Aluminum Circles, Aluminum Disk with 3" Diameter and 1/4" Thick, or a custom aluminum round blank? Send Haomei Aluminum your requirements for a fast quotation.

For faster pricing, please include the following information:

Required diameter: 3 inch, 76.2 mm, 80 mm, or custom size
Required thickness: such as 0.063 inch, 0.125 inch, 0.24 inch, 6 mm, or 1/4 inch
Aluminum alloy and temper: 1060-O, 3003-O, 5052-H32, 6061-T6, etc.
Surface and edge requirements
Quantity per order and annual purchasing volume, if applicable
Application: stamping, welding, machining, spinning, signage, or other use
Destination country, port, or delivery address

Need 3 Inch Aluminum Discs?

Tell us your alloy, diameter, thickness, quantity, and destination. Our team will provide a factory quotation.

Get a Quote

Contact Haomei Aluminum today for pricing, samples, technical support, and export supply information.

Aluminum Disk with 3" Diameter and 1/4" Thick

An Aluminum Disk with 3" Diameter and 1/4" Thick is generally used where a compact round part needs good rigidity, strength, and machining performance. A 1/4-inch aluminum disc is approximately 6.35 mm thick. Compared with thin aluminum blanks used for deep drawing, this thickness is more suitable for structural, machined, or welded applications.

Typical applications include:

Equipment covers and mounting pads
Decorative hardware and metal signage
Machined mechanical components
Jigs, fixtures, bushings, and spacers
Marine and outdoor hardware
Automotive aftermarket components
Industrial labels, round tags, and identification plates

For 1/4-inch thick round discs, 5052, 6061, and 5083 aluminum alloys are frequently selected. The final choice should be based on whether the disc will be welded, machined, anodized, used outdoors, or exposed to saltwater, chemicals, or repeated mechanical stress.

3 Inch (76.2 mm) / 80 mm × 6 mm 5052 Aluminum Disc for Metal Stamping

Haomei Aluminum manufactures precision 5052 aluminum discs for metal stamping, laser cutting, CNC machining, welding, and industrial fabrication. This specification is available as a standard 3 inch (76.2 mm) aluminum disc or a custom 80 mm diameter disc with a nominal 6 mm (0.236 inch) thickness to meet either imperial or metric design requirements.

Produced from premium-quality 5052 aluminum sheet, each round blank features consistent thickness, precise diameter control, and a smooth surface suitable for demanding manufacturing processes. Tight production tolerances help minimize material waste while improving the fit and repeatability of stamped or machined parts.

3 inch aluminum disc = 76.2 mm diameter
80 mm aluminum disc = 3.15 inches diameter
6 mm thickness = 0.236 inch
0.24 inch thickness ≈ 6.1 mm
1/4 inch thickness = 6.35 mm

Selecting the correct diameter and thickness is essential for stamping dies, machining fixtures, welded assemblies, and precision-engineered components where dimensional accuracy directly affects production efficiency.

3 Inch Industrial Metal & Alloy Discs for Precision Fabrication

Haomei Aluminum supplies 3 Inch Industrial Metal & Alloy Discs designed for manufacturers, fabricators, and OEM customers requiring consistent dimensions, reliable material performance, and stable processing quality. These 76.2 mm diameter metal discs are widely used in stamping, machining, forming, assembly, and custom fabrication projects across multiple industries.

Typical applications include:

Metal stamping blanks and formed components
Electrical, heat transfer, and thermal management parts
Pump, valve, and mechanical equipment components
Protective covers, end plates, and instrument housings
Spacers, washers, mounting plates, and machine accessories
Lighting reflectors and decorative metal parts
Automotive, transportation, and industrial hardware
Laboratory and precision equipment components
Architectural fittings and custom metal accessories
Marine fabrication parts requiring corrosion-resistant materials
Engraved, anodized, coated, or marked aluminum identification discs

To meet different production requirements, Haomei Aluminum provides custom 3 inch metal discs with options for alloy selection, temper, thickness, surface finish, edge quality, and protective packaging. For OEM and long-term supply projects, we also support specification-based manufacturing, batch consistency control, material traceability, and customized export packing solutions.

Why Buy 3 Inch Aluminum Discs from Haomei Aluminum?

As an aluminum manufacturer and export supplier, Haomei Aluminum focuses on providing materials that work reliably in our customers’ real production environments. We understand that disc quality influences stamping efficiency, welding performance, coating adhesion, machining accuracy, and finished-part consistency.

What Haomei Aluminum provides:

Multiple aluminum alloy and temper options
Accurate diameter and thickness control
Custom cutting for 3 inch, 76.2 mm, or 80 mm aluminum discs
Deburred and smooth-edge options
Support for trial orders and bulk procurement
Export-ready packaging for international shipment
Mill Test Certificates and material documentation upon request
Technical support for alloy, temper, thickness, and processing selection

If you are unsure whether to use 1060, 3003, 5052, 5083, or 6061 aluminum for your round blank, contact our team with your application details. We will help identify a practical material option based on your forming, welding, machining, corrosion resistance, and budget requirements.

FAQ – 3 Inch Aluminum Disc

Is a 3-inch aluminum disc exactly 80 mm?

No. A true 3-inch aluminum disc has a diameter of 76.2 mm, while an 80 mm aluminum disc is approximately 3.15 inches. If your tooling, stamping die, or assembly is designed according to metric dimensions, please confirm whether you need a 76.2 mm or 80 mm aluminum disc.

What thickness is 0.24 inch aluminum?

0.24 inch aluminum is approximately 6.1 mm thick. In many industrial purchasing specifications, it is commonly considered a 6 mm aluminum disc. A true 1/4 inch aluminum disc has a thickness of 6.35 mm.

Which alloy is best for a 3-inch aluminum disc for stamping?

For deep drawing, stamping, and forming applications, 1050-O, 1060-O, 1070-O, and 3003-O aluminum discs are commonly selected because of their excellent ductility and formability. For stamped components requiring higher strength and better corrosion resistance, 5052 aluminum is often a better choice.

Can a 3-inch aluminum disc be welded?

Yes. Aluminum alloys such as 5052 and 5083 are commonly used for welding applications due to their good weldability and corrosion resistance. Please provide the base material, thickness, welding method, and working environment so Haomei Aluminum can recommend the most suitable alloy and temper.

Can Haomei Aluminum make custom aluminum circles with holes?

Yes. Haomei Aluminum can manufacture custom aluminum discs with center holes, mounting holes, slots, special outer shapes, chamfered edges, and customized surface finishes according to customer drawings or specifications.