3105-H22 aluminum coils are widely used when manufacturers need a good balance of strength, formability, corrosion resistance, and cost. The 3105 alloy belongs to the 3000 series of aluminum alloys and is mainly strengthened by manganese. The H22 temper adds moderate strength through cold working and partial annealing.
Unlike high-strength heat-treatable alloys, 3105 aluminum depends on cold working rather than heat treatment for most of its strength. This makes 3105-H22 aluminum coils suitable for roofing products, siding, gutters, HVAC components, panels, general fabrication, and other applications where easy forming is important.
1. What Are 3105-H22 Aluminum Coils?
3105-H22 aluminum coils are continuous rolls of 3105 aluminum alloy supplied in the H22 temper. The alloy is an aluminum-manganese material with good corrosion resistance and good forming performance. It is a non-heat-treatable alloy, so its mechanical properties are mainly controlled through rolling and annealing.
The H22 designation is important. H means the alloy has been strain hardened. The first digit 2 indicates that the material is strain hardened and then partially annealed. The final digit 2 indicates a quarter-hard condition.
As a result, 3105 H22 aluminum provides a useful middle ground. It has more strength than the soft O temper while retaining more ductility than harder H24 or H26 tempers.
What does H22 mean in 3105 aluminum?
H22 means that 3105 aluminum has been strain hardened and partially annealed to achieve a quarter-hard condition. The partial annealing reduces some of the hardness produced during rolling. This improves formability and makes the coil easier to bend, roll form, press, and fabricate.
For buyers, specifying only “3105 aluminum” is not enough. The temper can change the strength and forming behavior of the material. When the application requires moderate strength with good forming performance, 3105 H22 is often a practical specification.
2. 3105 H22 Aluminum Properties
The main advantage of 3105 H22 aluminum is its balance of mechanical properties. It is not designed to compete with high-strength 6000 or 7000 series alloys. Instead, it provides enough strength for many sheet and coil applications while remaining easy to process.
Property | 3105 H22 Typical Value | Importance in Processing |
| Tensile strength | Approx. 150–200 MPa | Provides moderate structural strength |
| Yield strength | Approx. 110–170 MPa | Important for bending and forming calculations |
| Elongation | Typically about 4–10% | Supports forming and fabrication |
| Density | About 2.71 g/cm³ | Low weight compared with steel |
| Temper | H22 | Quarter-hard, strain hardened and partially annealed |
Actual mechanical properties depend on thickness, production standard, and supplier specification. For engineering applications, buyers should always confirm the required values on the mill test certificate or material datasheet.
Corrosion resistance
3105 aluminum has good resistance to atmospheric corrosion. The aluminum surface naturally forms a thin oxide film that protects the underlying metal. This makes 3105 H22 aluminum useful for outdoor building products and components exposed to normal weather conditions.
Formability
Formability is one of the main reasons buyers select 3105 H22. The partial annealing process gives the coil enough ductility for bending, roll forming, stamping, and other common fabrication operations. It is especially useful when the finished product has curved or folded sections.
3. 3105 Aluminum Chemical Composition
3105 is an aluminum-manganese alloy. Manganese provides solid-solution strengthening while maintaining good corrosion resistance and formability. Small amounts of magnesium and other elements further adjust the alloy's performance.
Element | Typical / Maximum Content (%) | Main Function |
| Aluminum (Al) | Remainder | Base metal and low-density structure |
| Manganese (Mn) | 0.30–0.80 | Main alloying element for strength |
| Magnesium (Mg) | 0.20–0.80 | Contributes to strength |
| Silicon (Si) | ≤ 0.60 | Controlled impurity |
| Iron (Fe) | ≤ 0.70 | Controlled impurity |
| Copper (Cu) | ≤ 0.30 | Limited to maintain corrosion performance |
| Zinc (Zn) | ≤ 0.40 | Controlled alloying element |
Exact limits can vary slightly according to the applicable standard. When purchasing 3105 aluminum coil, the chemical composition should be confirmed against the standard specified in the purchase order.
4. What Is 3105 H22 Aluminum Used For?
3105 H22 aluminum is mainly selected for products that need moderate strength, good forming performance, low weight, and resistance to normal outdoor environments. It can be supplied as plain aluminum coil or used as the substrate for coated and painted products.
Application | Why 3105 H22 Is Used | Typical Products |
| Roofing | Light weight and corrosion resistance | Roof panels, standing seam roofing |
| Siding | Good formability and paintability | Wall panels and exterior siding |
| Gutters | Easy roll forming and bending | Rain gutters and downspouts |
| HVAC | Good formability and thermal performance | Duct components, panels and covers |
| Building panels | Low weight and good surface performance | Decorative and architectural panels |
| General fabrication | Easy cutting, bending and forming | Covers, brackets and formed components |
3105 aluminum coil for roofing
Building products are one of the most common markets for 3105 aluminum coil. The material can be roll formed into roofing profiles and other architectural shapes. It also works well with coating systems, which makes it suitable for pre-painted aluminum roofing and siding products.
3105 aluminum coil for gutters
Gutter manufacturing requires a material that can be continuously formed without excessive cracking. 3105 H22 provides a useful combination of ductility and strength. Coil processing also allows manufacturers to run long production lengths with fewer joints.
Painted and coated aluminum products
3105 is frequently selected as a substrate for painted aluminum products. The coil can be cleaned, treated, coated, dried, and rewound before it is formed into the final product. The combination of aluminum's corrosion resistance and a protective coating can provide a durable exterior surface.
5. 3105 H22 vs H24 vs H26 Aluminum
The temper should be selected according to the forming and strength requirements of the final product. 3105 H22, H24, and H26 are all strain-hardened and partially annealed tempers, but they have different degrees of hardness.
Temper | Condition | Relative Strength | Typical Selection |
| H22 | 1/4 hard | Lower | Good forming, bending and general fabrication |
| H24 | 1/2 hard | Medium | Products requiring more rigidity |
| H26 | 3/4 hard | Higher | Stiffer components with less forming |
3105 H22 vs H24
3105 H24 is harder and stronger than H22, but it generally offers less ductility. If the finished product needs additional rigidity and the forming operation is not severe, H24 can be a better choice. H22 is normally preferred when forming performance is more important.
3105 H22 vs H26
3105 H26 has a higher degree of strain hardening than H22. It is useful when the final component needs more stiffness. However, increased hardness reduces forming capability. Buyers should not select H26 simply because it has higher strength. The correct temper depends on the production process.
6. 3105 Aluminum Coil Specifications
3105 aluminum coil can be supplied in different thicknesses, widths, surface finishes, and coil weights. The exact range depends on the rolling mill and production requirements.
Specification | Typical Range | Buyer Notes |
| Alloy | 3105 | Specify the full alloy designation |
| Temper | H22 | Confirm temper before production |
| Thickness | Commonly about 0.3–6.0 mm | Custom gauges available depending on mill capability |
| Width | Customized to order | Slitting can be arranged |
| Surface | Mill finish / coated | Finish depends on final application |
| Coil ID | Customized | Confirm equipment requirements |
For automatic production lines, coil inner diameter, outer diameter, coil weight, width tolerance, and surface protection can be important. These details should be included in the RFQ to avoid problems during processing.
7. 3105 Aluminum Coil Price: What Affects the Cost?
The price of 3105 aluminum coil is normally quoted by kilogram or metric ton. There is no single fixed price because aluminum market conditions, coil dimensions, quantity, processing, and surface treatment all affect the final quotation.
Aluminum ingot and market price
The basic metal value is the largest part of the cost. Changes in the aluminum market can therefore affect 3105 aluminum coil prices even when the alloy and dimensions remain unchanged.
Thickness and width
Special thicknesses and widths can require additional rolling or slitting operations. Very thin gauges can also require tighter process control. Standard sizes are usually easier to produce and may have a lower conversion cost.
Quantity
Large orders usually provide better pricing because production setup, testing, packing, and logistics costs can be distributed across a larger quantity. For regular production, a yearly supply agreement may also improve purchasing efficiency.
Surface treatment
Mill-finish 3105 aluminum coil is generally the simplest option. Painted, coated, embossed, or otherwise processed material will have additional conversion costs. If the final product is painted after forming, mill finish may be the better purchasing option.
8. 3105 H22 Aluminum Coil vs Other Aluminum Alloys
3105 is often compared with 3003 and 5052. The best alloy depends on the required strength, corrosion resistance, forming performance, and cost.
Alloy | Strength | Formability | Typical Applications |
| 3105 H22 | Medium | Good | Roofing, siding, gutters, panels |
| 3003 | Low to medium | Very good | Cookware, heat exchangers, general fabrication |
| 5052 | Medium to high | Good | Marine, tanks, transportation, fabrication |
If the application is mainly architectural and requires easy forming, 3105 H22 can be a strong choice. If higher corrosion resistance in demanding environments is required, 5052 may be considered. If lower cost and excellent formability are the priority, 3003 can be suitable.
9. How to Order 3105-H22 Aluminum Coils
A clear RFQ helps the supplier calculate the correct price and confirm production capability. For 3105-H22 aluminum coils, buyers should provide the following information:
• Alloy: 3105
• Temper: H22
• Thickness: exact thickness in mm
• Width: exact coil width in mm
• Quantity: kilograms, metric tons, or number of coils
• Coil ID and maximum coil weight if required
• Surface finish or coating requirement
• Applicable standard and inspection requirements
• Destination port and required delivery date
If the coil will be processed on an automatic roll-forming or slitting line, it is also useful to specify flatness, width tolerance, edge condition, surface protection, and packaging requirements.
10. Why Choose 3105-H22 Aluminum Coils From Us?
We supply aluminum coils for building products, fabrication, HVAC, roofing, siding, and other industrial applications. Our service focuses on matching alloy, temper, dimensions, surface requirements, and delivery conditions with the buyer's production needs.
• 3105 aluminum coil in H22 and other tempers
• Customized thickness and width
• Coil slitting service available according to requirements
• Mill test certificate available with orders
• Mill finish and coated aluminum options
• Export packing suitable for sea transportation
• Technical support for alloy, temper and size selection
• Fast quotation based on your complete RFQ specification
Frequently Asked Questions About 3105-H22 Aluminum Coils
Q: What is 3105-H22 aluminum?
A: 3105-H22 aluminum is a 3105 aluminum alloy supplied in a quarter-hard temper. It is strain hardened and partially annealed to balance strength and formability.
Q: What is 3105 aluminum coil used for?
A: 3105 aluminum coil is commonly used for roofing, siding, gutters, building panels, HVAC components, and general fabricated products.
Q: Is 3105 H22 stronger than H24?
A: No. H24 is a harder temper than H22 and generally provides higher strength and stiffness. H22 normally provides better formability.
Q: What is the difference between 3105 H22 and H26?
A: H26 has a higher degree of strain hardening than H22. It provides higher strength but normally has lower ductility and forming capability.
Q: Is 3105 aluminum good for outdoor applications?
A: Yes. 3105 has good atmospheric corrosion resistance and is widely used in outdoor building products such as roofing, siding, gutters, and panels. Coating can provide additional surface protection when required.
Q: How is 3105 aluminum coil priced?
A: The price depends on the aluminum market, alloy and temper, thickness, width, order quantity, surface finish, slitting requirements, packaging, and destination.
Q: What information should I provide for a 3105 aluminum coil quotation?
A: Provide alloy, temper, thickness, width, quantity, coil ID, coil weight, surface finish, applicable standard, destination, and delivery requirement. This allows the supplier to prepare a more accurate quotation.
Conclusion
3105-H22 aluminum coils offer a practical combination of moderate strength, good formability, corrosion resistance, and low weight. The H22 temper is particularly useful when the coil must be bent, roll formed, stamped, or otherwise fabricated during production.
For roofing, siding, gutters, HVAC components, architectural panels, and general fabrication, 3105 H22 can provide a good balance between material performance and processing cost. When higher rigidity is needed, 3105 H24 or H26 can be considered.
Contact us with your required thickness, width, quantity, temper, surface finish, and destination. We can recommend the appropriate 3105 aluminum coil specification and provide a quotation based on your project requirements.
