5052 h19 aluminum coil
5052 H19 aluminum coil is a high-strength, non-heat-treatable aluminum-magnesium alloy coil widely used in industries that require a combination of light weight, corrosion resistance, formability, and improved hardness. As part of the 5xxx series, 5052 alloy is known for its excellent resistance to marine atmosphere, industrial chemicals, and general outdoor exposure. In the H19 temper, the material reaches a very hard strain-hardened condition, making it especially suitable for applications where higher strength and surface durability are important.
For buyers, manufacturers, and engineers, 5052 H19 aluminum coil offers a practical balance between performance and cost efficiency. It is commonly selected for building materials, appliance panels, transportation components, and decorative or protective sheet processing.
What Is 5052 H19 Aluminum Coil?
5052 aluminum alloy mainly contains magnesium as its primary alloying element, with a small amount of chromium added to improve corrosion resistance and stability. It belongs to the Al-Mg alloy family, which is valued for good weldability and excellent anti-rust properties.
The H19 temper means the coil has been strain hardened to an extra-hard condition. Compared with softer tempers such as H32 or H34, H19 provides higher tensile strength and surface stiffness, though with reduced ductility. This makes it suitable for parts that need to maintain shape under stress or require better resistance to denting and deformation.
Main Functions of 5052 H19 Aluminum Coil
5052 H19 aluminum coil performs well in applications where multiple functional properties are required at the same time.
| Function | Performance Advantage |
|---|---|
| Corrosion resistance | Excellent resistance to seawater, humidity, alkaline environments, and atmospheric corrosion |
| Lightweight structure | Lower density than steel, helping reduce total product weight |
| High hardness | H19 temper provides extra-hard properties and improved resistance to surface deformation |
| Forming capability | Suitable for roll forming, bending, stamping, and profiling within appropriate limits |
| Surface quality | Smooth surface supports coating, anodizing, painting, and decorative finishing |
| Weldability | Good compatibility with common aluminum welding methods, though temper effects should be considered |
| Cost efficiency | Offers strong overall performance without the higher cost of some specialty alloys |
Typical Applications
Because of its anti-rust performance and relatively high strength, 5052 H19 aluminum coil is used in many sectors.
| Industry | Typical Applications |
|---|---|
| Building and construction | Roofing panels, curtain wall backing, ceiling systems, cladding, gutters, downspouts |
| Home appliances | Refrigerator panels, washing machine casings, air conditioner covers |
| Transportation | Trailer panels, vehicle interior parts, lightweight structural skins |
| Electronics and enclosures | Cabinets, protective shells, instrument housings |
| Marine and outdoor products | Decorative sheets, protective covers, weather-resistant panels |
| Signage and display | Sign boards, advertising panels, channel letter materials |
| General fabrication | Roll-formed profiles, embossed sheets, stamped parts |
In practical production, 5052 H19 coil is often chosen when users need a material that is stronger than soft aluminum coil, yet still easier to process and more corrosion-resistant than many other metal options.
Chemical Composition of 5052 Aluminum Alloy
The chemical composition of 5052 aluminum is controlled according to recognized aluminum alloy standards. Small variations may occur depending on the specific standard or customer requirement.
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance |
| Magnesium (Mg) | 2.2–2.8 |
| Chromium (Cr) | 0.15–0.35 |
| Silicon (Si) | ≤ 0.25 |
| Iron (Fe) | ≤ 0.40 |
| Copper (Cu) | ≤ 0.10 |
| Manganese (Mn) | ≤ 0.10 |
| Zinc (Zn) | ≤ 0.10 |
| Others, each | ≤ 0.05 |
| Others, total | ≤ 0.15 |
This composition gives the alloy its well-known combination of corrosion resistance, moderate-to-high strength, and good workability.
Mechanical Properties of 5052 H19 Aluminum Coil
Mechanical values can vary depending on thickness, production route, and applicable standard. The table below shows typical reference ranges for 5052 H19 aluminum coil.
| Property | Typical Value |
|---|---|
| Temper | H19 |
| Tensile strength | 270–320 MPa |
| Yield strength | 230–280 MPa |
| Elongation | 2–6% |
| Brinell hardness | Approximately 70–85 HB |
| Density | 2.68 g/cm³ |
| Elastic modulus | About 70 GPa |
| Electrical conductivity | Approximately 34–36% IACS |
| Thermal conductivity | About 130–140 W/m·K |
| Melting range | Approximately 607–650°C |
The H19 temper provides one of the highest strength levels available for strain-hardened 5052 material, making it suitable for rigid panel and sheet-based applications.
Alloy Tempering Condition
Temper condition has a direct effect on the performance and processing behavior of aluminum coil.
| Temper | Description | Typical Characteristics |
|---|---|---|
| O | Annealed | Softest temper, maximum formability |
| H12 / H14 | Strain hardened | Moderate strength, good workability |
| H32 / H34 | Strain hardened and stabilized | Good balance of formability and strength |
| H18 | Full hard | High strength, limited ductility |
| H19 | Extra hard | Higher hardness and stiffness, suitable for demanding panel use |
For customers requiring enhanced flatness, roll-forming performance, or decorative use, the H19 temper can be produced with controlled surface and dimensional tolerances.
Technical Specifications
5052 H19 aluminum coil is available in various sizes to meet industrial processing needs. The common supply range is shown below.
| Parameter | Typical Range |
|---|---|
| Thickness | 0.15 mm – 3.00 mm |
| Width | 20 mm – 2650 mm |
| Coil inner diameter | 150 mm, 300 mm, 405 mm, 505 mm |
| Coil outer diameter | Customized according to weight and transport |
| Coil weight | 1–5 tons, or customized |
| Surface finish | Mill finish, coated, color coated, embossed, brushed |
| Flatness | High flatness available for precision use |
| Edge condition | Mill edge or slit edge |
| Protective film | Optional |
These specifications can be customized according to the customer's final application, processing method, and packaging requirements.
Implementation Standards
5052 H19 aluminum coil is generally produced in compliance with international or regional standards. Common references include the following.
| Standard | Description |
|---|---|
| ASTM B209 | Standard specification for aluminum and aluminum-alloy sheet and plate |
| EN 485 | European standard for aluminum and aluminum alloy sheet, strip, and plate |
| GB/T 3880 | Chinese standard for wrought aluminum and aluminum alloy plates, sheets, and strips |
| JIS H4000 / JIS H4001 | Japanese industrial standards for aluminum products |
| AMS / customer-specific standards | Available for special industrial or OEM requirements |
When sourcing material, buyers should confirm the exact standard, tolerance class, and inspection requirement with the supplier.
Surface Properties and Processing Notes
5052 H19 aluminum coil has a clean and stable surface suitable for further finishing. It can be used in painted coil systems, laminated panels, embossed products, and corrosion-resistant decorative applications.
| Processing Aspect | Performance |
|---|---|
| Painting and coating | Excellent adhesion after proper pretreatment |
| Anodizing | Possible, though appearance may vary compared with some other alloys |
| Embossing | Good for decorative and anti-slip patterns |
| Roll forming | Suitable with proper tooling design |
| Bending | Possible, but smaller bend radii may be limited due to hard temper |
| Welding | Good weldability, though local mechanical properties may change after welding |
Because H19 is an extra-hard temper, customers should evaluate forming radius, stamping depth, and tooling pressure during fabrication. If deep drawing or complex forming is required, a softer temper may be more appropriate.
Why Choose 5052 H19 Aluminum Coil?
For many industrial buyers, 5052 H19 aluminum coil is an efficient choice because it combines durability, corrosion resistance, strength, and lightweight performance in one material. It is especially useful in environments exposed to moisture, outdoor weather, or repeated handling. Compared with ordinary soft aluminum coil, it offers better rigidity and dent resistance, while still maintaining the processing advantages of aluminum.
It is also a strong option for manufacturers looking for reliable material in coil form, which supports continuous production, improved material utilization, and lower fabrication costs.
