3105 Aluminum Disc: Properties, Sizes, Applications and 3105 vs 5052
3105 aluminum disc is a round aluminum blank made from 3105 aluminum sheet. It combines good formability, corrosion resistance, moderate strength, and low weight. These features make 3105 aluminum discs suitable for cookware components, lighting products, general fabrication, and other applications that require a reliable round aluminum blank.
Compared with pure aluminum grades, 3105 provides higher strength while maintaining good forming performance. It is also a practical choice when buyers need a balance between cost, corrosion resistance, and mechanical performance. This guide explains 3105 aluminum composition, 3105 aluminum density, key properties, common applications, available sizes, and the differences between 3105 aluminum and 5052.
1. What Is a 3105 Aluminum Disc?
A 3105 aluminum disc is a circular piece of aluminum cut or stamped from 3105 aluminum sheet or coil. It is also called a 3105 aluminum circle, aluminum round blank, or aluminum disc blank. The round shape is useful for products that will be stamped, deep drawn, spun, pressed, or machined.
The manufacturing process normally starts with aluminum alloy casting and rolling. The 3105 aluminum sheet is then processed to the required thickness and temper. Circular blanks are produced by stamping, punching, or precision cutting. For large-volume production, stamping provides high production efficiency and consistent dimensions.
The final diameter and thickness depend on the application. Small discs can be used for lighting and hardware components. Larger 3105 aluminum discs can be used for cookware and fabricated parts.
2. 3105 Aluminum Composition and Grade Characteristics
3105 is an aluminum-manganese alloy in the 3xxx series. Manganese is the main alloying element. The alloy design provides better strength than commercially pure aluminum while retaining good formability and corrosion resistance.
Element | Typical role | Effect on 3105 aluminum |
Aluminum (Al) | Base metal | Provides low density, good corrosion resistance, and the basic aluminum matrix. |
Manganese (Mn) | Main alloying element | Increases strength while maintaining useful forming performance. |
Magnesium (Mg) | Minor alloying element | Supports strength and overall alloy performance. |
The exact chemical composition depends on the applicable material standard and product specification. Buyers should confirm the required standard, temper, and mill certificate when ordering 3105 aluminum discs for production use.
3. 3105 Aluminum Properties and Density
The properties of aluminum alloy 3105 make it suitable for applications that need moderate strength and good forming performance. It is a non-heat-treatable alloy. Its mechanical strength is mainly controlled through cold working and temper selection.
Property | Typical characteristic |
Density | Approximately 2.71 g/cm³ |
Strength | Moderate strength, depending on temper |
Formability | Good, especially in softer tempers |
Corrosion resistance | Good resistance in normal atmospheric environments |
Machinability | Suitable for common fabrication and cutting operations |
The 3105 aluminum density is about 2.71 g/cm³. This low density is one reason aluminum discs are widely used when manufacturers need to reduce component weight. The exact weight of each disc can be calculated from its diameter, thickness, and material density.
For buyers, temper is also important. A softer temper is normally preferred when the 3105 aluminum disc will be deep drawn or formed. A harder temper can provide higher strength when the finished component needs greater rigidity.
4. What Is 3105 Aluminum Used For?
3105 aluminum is used for products that require a good balance of formability, corrosion resistance, moderate strength, and lightweight construction. When supplied as a disc, the material is especially useful for round components and products made by forming.
Application | Why 3105 aluminum disc is suitable | Typical processing |
Cookware components | Good formability and corrosion resistance | Stamping, spinning, pressing |
Lighting components | Lightweight and easy to form | Stamping and forming |
General fabrication | Good combination of strength and workability | Cutting, forming, punching |
Decorative parts | Light weight and good surface processing performance | Stamping, polishing, coating |
3105 aluminum discs for cookware
Cookware is one of the important applications for aluminum discs. A circular blank can be formed into a pan or other round cookware component. 3105 offers a useful balance of formability and strength for applications where the material does not need the high strength of a structural aluminum alloy.
3105 aluminum discs for lighting
Round aluminum blanks are also used in lighting products. The disc can be pressed or formed into a reflector or housing. Aluminum's low weight and good thermal performance are useful for lighting components.
5. 3105 Aluminum vs 5052: Which One Should You Choose?
3105 aluminum vs 5052 is a common comparison when selecting aluminum for formed components. Both alloys offer good corrosion resistance, but they belong to different alloy families and have different strength levels.
Property | 3105 Aluminum | 5052 Aluminum |
| Alloy series | 3xxx series | 5xxx series |
| Main alloying element | Manganese | Magnesium |
| Strength | Moderate | Generally higher |
| Formability | Good | Good to excellent depending on temper |
| Corrosion resistance | Good | Excellent, especially in marine environments |
| Best suited for | General formed products and lightweight components | Higher-strength, marine, tank and industrial applications |
The key difference between 3105 and 5052 is the balance between strength and application requirements. 5052 generally provides higher strength and stronger marine corrosion performance. 3105 is attractive when good formability, moderate strength, and economical material selection are more important.
For a 3105 aluminum disc used mainly for forming, 3105 can be a practical choice. If the finished component needs higher mechanical strength or severe marine exposure, 5052 may be the better specification.
6. 3105 Aluminum Disc Sizes and Specifications
The diameter and thickness of a 3105 aluminum disc should be selected according to the finished product and forming process. Standard sizes are available for common applications, while custom sizes can be produced for specific production lines.
Specification | Typical supply option |
| Alloy | 3105 |
| Temper | O, H12, H14, H16, H18 and other agreed tempers |
| Thickness | Customized according to application and forming requirements |
| Diameter | Standard and custom diameters available |
| Surface | Mill finish or other agreed surface requirements |
For high-volume orders, the disc diameter should match the stamping die as closely as possible. This helps reduce material waste and improves production efficiency. Buyers should also specify thickness tolerance, diameter tolerance, edge condition, surface quality, packaging, and quantity when requesting a quotation.
7. How to Calculate 3105 Aluminum Disc Weight
The weight of a 3105 aluminum disc depends mainly on diameter, thickness, and density. Using the approximate 3105 aluminum density of 2.71 g/cm³, buyers can estimate the weight before placing an order.
Disc weight = π × (diameter ÷ 2)² × thickness × density
For commercial purchasing, the supplier can calculate the exact theoretical weight based on the requested dimensions. Actual shipment weight may vary slightly because of dimensional tolerance and production conditions.
8. Why Choose 3105 Aluminum Disc?
3105 aluminum disc offers several practical advantages for manufacturers:
• Good formability for stamping and forming
• Good corrosion resistance for general environments
• Moderate strength for general fabricated products
• Low density and lightweight construction
• Available in different tempers and customized dimensions
• Suitable for large-volume disc production
The most important point is to select the alloy and temper based on the forming process and final service conditions. A correct specification can reduce cracking, improve production efficiency, and control material cost.
9. 3105 Aluminum Disc FAQ
What is 3105 aluminum used for?
3105 aluminum is used for formed products, cookware components, lighting parts, general fabrication, and other applications that need good formability, corrosion resistance, moderate strength, and low weight. In disc form, it is useful for products manufactured by stamping, pressing, spinning, or forming.
What are the key differences between 3105 and 5052 aluminum?
3105 belongs to the 3xxx aluminum series and uses manganese as its main alloying element. 5052 belongs to the 5xxx series and uses magnesium as its main alloying element. 5052 generally provides higher strength and excellent corrosion resistance, while 3105 offers a good balance of formability, moderate strength, and cost for general formed products.
What are the properties of aluminum alloy 3105?
The main properties of 3105 aluminum include low density, good corrosion resistance, good formability, moderate strength, and good fabrication performance. It is a non-heat-treatable alloy, so the required strength is normally obtained through cold working and temper control.
What are aluminum disks?
Aluminum disks are round blanks made from aluminum sheet or coil. They are also called aluminum circles or round aluminum blanks. Manufacturers use them as starting materials for cookware, lighting components, signs, covers, and various formed products.
10. Request a Quote for 3105 Aluminum Disc
When requesting a quotation for 3105 aluminum disc, please provide the alloy, temper, thickness, diameter, quantity, surface requirements, packaging requirements, and destination. These details allow the supplier to recommend a suitable production specification and provide an accurate quotation.
We supply aluminum discs and aluminum circles in different alloys, sizes, and tempers for international buyers. Send your required diameter, thickness, temper, and quantity to receive a product recommendation and quotation.
