3105 H26 aluminum coil is a medium-to-high strength aluminum coil used when manufacturers need a good balance of strength, corrosion resistance, formability, and production efficiency. As a 3000 series aluminum alloy, 3105 contains manganese as its main alloying element and is widely used for building materials, roofing, siding, panels, and other formed aluminum products.
The H26 temper gives 3105 aluminum coil higher strength than softer tempers such as H22 while retaining useful forming performance. This makes aluminum 3105 H26 a practical choice for applications where the finished component needs more rigidity and dimensional stability without moving to a much harder temper.
1. What Is 3105 H26 Aluminum Coil?
3105 H26 aluminum coil is 3105 aluminum alloy supplied in H26 temper. 3105 belongs to the 3xxx series of non-heat-treatable aluminum alloys. Its strength is mainly obtained through cold working rather than heat treatment.
The H26 designation means the material has been strain hardened and then partially annealed to a 3/4-hard condition. Compared with softer H22 material, H26 provides higher strength and greater stiffness. Compared with fully hard material, it retains better practical formability for many roll forming, bending, and fabrication operations.
For buyers, the complete specification should therefore include both the alloy and temper. Ordering only “3105 aluminum coil” does not define the required mechanical condition. If the application requires higher rigidity, 3105 H26 should be clearly specified on the purchase order and mill test certificate.
2. 3105 H26 Aluminum Coil Properties
The main advantage of aluminum 3105 H26 is its combination of strength, corrosion resistance, low density, and workable forming characteristics. These properties make it suitable for many rolled and formed products.
Property | 3105 H26 | Importance for buyers |
Alloy series | 3xxx series | Non-heat-treatable alloy with good corrosion resistance |
Temper | H26 | 3/4 hard condition with increased strength and stiffness |
Density | About 2.7 g/cm³ | Lightweight compared with steel and many other structural materials |
Corrosion resistance | Good | Suitable for outdoor and atmospheric environments |
Formability | Moderate | Suitable for roll forming, bending and general fabrication |
Good corrosion resistance
3105 aluminum coil has good resistance to atmospheric corrosion. This is one reason it is widely considered for building products and outdoor applications. The natural oxide film on aluminum provides a protective surface, while the 3xxx alloy system provides a useful balance between strength and corrosion performance.
Light weight and good rigidity
Aluminum has a density of about one-third that of steel. Using 3105 H26 aluminum coil can therefore reduce component weight while maintaining the rigidity required by many building and fabrication applications. The H26 temper is useful when a stiffer material is preferred over a softer aluminum temper.
Good surface quality
3105 aluminum can provide a clean mill-finish surface and can also be used as the base material for coated products. This makes it suitable for applications where appearance and long-term surface performance are important.
3. 3105 H26 vs H22 and H24 Aluminum
Temper selection is important when buying 3105 aluminum coil. H22, H24 and H26 all belong to strain-hardened and partially annealed conditions, but they provide different combinations of strength and formability.
Temper | Condition | Relative strength | Typical selection |
H22 | 1/4 hard | Lower | Applications needing easier forming |
H24 | 1/2 hard | Medium | General formed products |
H26 | 3/4 hard | Higher | Rigid panels and products requiring higher strength |
If the finished component must retain more rigidity, H26 is usually more appropriate than H22. If forming depth is the main concern, a softer temper may be preferred. The final choice should always be based on the customer's forming process, design requirements, thickness, and applicable material standard.
4. 3105 H26 Aluminum Coil Applications
3105 H26 aluminum coil is particularly useful for products that are roll formed, bent, profiled, or fabricated into lightweight components. Its combination of strength and corrosion resistance makes it a common choice for building and industrial applications.
Roofing and building panels
One of the major applications for 3105 aluminum coil is building products. H26 material can be used for roofing sheets, wall panels, siding, flashing, and other formed building components where strength and outdoor corrosion resistance are important.
Gutters and drainage products
3105 aluminum coil can be roll formed into gutters, downspouts, and related drainage components. The low weight makes handling and installation easier, while the corrosion resistance helps the finished product perform in outdoor environments.
HVAC and ventilation components
3105 aluminum is also suitable for selected HVAC and ventilation products. Coil stock can be slit, cut, bent, and formed into covers, panels, ducts, and other components depending on the required design.
Industrial and fabricated components
Other applications include equipment panels, protective covers, trim, partitions, and fabricated components. H26 is especially useful when the finished part needs more stiffness than a softer 3105 temper can provide.
5. 3105 H26 Aluminum Coil Specifications
The exact available dimensions depend on rolling equipment and production requirements. Buyers should confirm the required thickness, width, coil weight, inner diameter, outer diameter, and surface finish before placing an order.
Specification | Typical supply | Buyer requirement |
Alloy | 3105 | Specify 3105 on RFQ |
Temper | H26 | Confirm required temper |
Thickness | According to production capability | Specify exact thickness in mm |
Width | Standard or custom width | Specify exact width in mm |
Surface | Mill finish or coated surface | State surface and coating requirements |
Coil dimensions | Customized according to equipment | Specify ID, OD and maximum coil weight |
For large-volume projects, custom width aluminum 3105 H26 coil can help reduce cutting waste and improve material utilization. Slitting can also be considered when the production line requires narrow-width coil.
6. 3105 H26 Aluminum Coil Surface and Processing Options
Depending on the final application, 3105 aluminum coil can be supplied with different surface and processing requirements. The correct option should be confirmed before production.
Mill finish
Mill-finish 3105 H26 aluminum coil is the standard choice for many industrial applications. It can be further processed by cutting, bending, roll forming, or coating according to the finished product design.
Coated aluminum coil
When appearance and weather resistance are important, 3105 coil can be used as the substrate for coated aluminum products. Color-coated coil is widely used in roofing, wall panels, siding, and other architectural products.
Slitting and cut-to-length processing
For customers with specific production-line dimensions, aluminum 3105 H26 can be slit into narrower widths or processed to required lengths. These services can reduce secondary processing at the customer's factory.
7. 3105 H26 Aluminum Coil Price Factors
The price of 3105 H26 aluminum coil depends on more than the basic aluminum market price. Buyers should provide complete specifications when requesting a quotation so the supplier can calculate an accurate price.
Price factor | How it affects the quotation |
Aluminum market price | The base metal price is an important part of the final coil quotation. |
Thickness and width | Special dimensions may require additional rolling or slitting operations. |
Temper | H26 requires controlled processing to achieve the specified mechanical condition. |
Coating or surface | Coated and specially finished products cost more than standard mill finish. |
Order quantity | Larger orders normally provide better production and logistics efficiency. |
For an accurate 3105 H26 aluminum coil quotation, buyers should provide alloy, temper, thickness, width, surface finish, coil dimensions, quantity, destination port, and trade terms such as FOB or CIF.
8. How to Order 3105 H26 Aluminum Coil
A clear RFQ helps the aluminum supplier confirm production feasibility and provide a more accurate quotation. Include the following information in your inquiry:
• Alloy: 3105
• Temper: H26
• Thickness: required thickness in mm
• Width: required coil width in mm
• Surface: mill finish, coated, or other requirement
• Coil ID and OD: if required by your processing equipment
• Coil weight: maximum acceptable coil weight
• Quantity: total kilograms or metric tons
• Standard: ASTM, EN, GB, or other required standard
• Delivery: FOB, CIF, or other trade term
• Destination port
9. Why Source 3105 H26 Aluminum Coil From Us
We supply 3105 aluminum coil for building products, roll forming, fabrication, and other industrial applications. Customers can specify the required alloy, temper, thickness, width, surface finish, and coil dimensions according to their production requirements.
• 3105 alloy with H26 temper available according to production requirements
• Custom thickness and width options
• Mill-finish and coated aluminum coil options
• Slitting and other processing services available according to requirements
• Mill test certificate and standard quality documentation
• Export packaging suitable for long-distance sea transportation
• Factory-direct quotation for bulk aluminum coil orders
Send us your required 3105 H26 aluminum coil specifications, including thickness, width, quantity, surface finish, and destination. We can confirm availability and provide a quotation based on your project requirements.
Frequently Asked Questions About 3105 H26 Aluminum Coil
Q: What is 3105 H26 aluminum?
A: 3105 H26 aluminum is 3105 aluminum alloy in a 3/4-hard temper. It provides higher strength and stiffness than softer tempers such as H22 and is used for many formed and fabricated aluminum products.
Q: What is 3105 aluminum coil used for?
A: 3105 aluminum coil is commonly used for roofing, siding, wall panels, gutters, downspouts, HVAC components, trim, and other lightweight fabricated products.
Q: Is 3105 H26 stronger than 3105 H22?
A: Yes. H26 is a harder temper than H22, so it generally provides higher strength and stiffness, while H22 provides better formability.
Q: What is the difference between 3105 H24 and H26?
A: Both are strain-hardened and partially annealed tempers, but H26 is the harder 3/4-hard condition while H24 is the 1/2-hard condition. H26 is normally selected when higher strength and rigidity are more important.
Q: Can 3105 H26 aluminum coil be coated?
A: Yes. 3105 aluminum is widely used as a substrate for coated aluminum products. The coating system should be selected according to the final application and required outdoor durability.
Q: What information should I provide when buying 3105 H26 aluminum coil?
A: Provide the alloy, H26 temper, thickness, width, surface finish, coil dimensions, quantity, required standard, destination port, and trade terms. These details allow the supplier to prepare an accurate quotation.
