EN AW 1050A H12 is a commercially pure aluminum alloy with a minimum of 99.5% aluminum content, supplied in a strain-hardened temper. The H12 temper indicates partially hardened aluminum with moderate strength and good formability. It is commonly used in electrical, chemical, and general sheet metal applications due to its excellent corrosion resistance and high ductility.
Looking for a Reliable Source for EN AW 1050A H12?
We supply wholesale EN AW 1050A H12 aluminum sheet in standard and custom dimensions with complete EN compliance.
Understanding EN AW 1050A Aluminum Plain Sheet
EN AW 1050A is a 1000 series aluminum alloy defined under European standards, known for its high purity and excellent corrosion resistance. It is classified as a non-heat-treatable alloy. The "A" in the designation specifies a distinct European variation of the standard 1050 grade, featuring tightly controlled impurity limits to ensure consistent electrical and chemical performance. Because it contains at least 99.5% pure aluminum, it relies entirely on cold working rather than thermal treatment to achieve structural strength.
What Does H12 Mean in 1050A Aluminum Alloy Sheet?
The temper designation is critical for mechanical processing.
What Does H12 Mean?
H12 is a temper designation indicating that the aluminum has been strain-hardened to a quarter-hard condition.
In the aluminum temper designation system:
"H" stands for strain-hardened (cold worked).
"1" indicates that the material is strain-hardened only, without any subsequent thermal treatment or partial annealing.
"2" signifies the degree of hardness, which is 1/4 hard (quarter-hard).
H12 provides moderate strength while maintaining good formability. It is stiffer and less prone to handling damage than the fully soft "O" temper, yet it is significantly more bendable than the half-hard (H14) or fully hard (H18) tempers. This precise balance is what makes H12 highly sought after for complex sheet metal fabrication.
Relevant Standards for EN AW 1050A Aluminum Panel
In international B2B procurement, material traceability and standard compliance are non-negotiable. EN AW 1050A H12 aluminum is typically produced according to:
- EN 573: Chemical composition
- EN 485: Mechanical properties and tolerances
- EN 573 defines composition, while EN 485 specifies mechanical properties and dimensional tolerances.
By adhering strictly to these EN standards, buyers are guaranteed that every custom EN AW 1050A aluminum flat sheet purchased will behave predictably during stamping, cutting, and welding operations. It eliminates the risks associated with inconsistent material thickness or unexpected chemical impurities.
Chemical Composition of 1050A Pure Aluminum Plate
The purity level dictates the metal's primary characteristics. The chemical composition is strictly regulated to prevent impurities from degrading its electrical conductivity or corrosion resistance.
| Element | Content (%) |
| Aluminum (Al) | ≥ 99.5 |
| Silicon (Si) | ≤ 0.25 |
| Iron (Fe) | ≤ 0.40 |
| Copper (Cu) | ≤ 0.05 |
| Manganese (Mn) | ≤ 0.05 |
| Magnesium (Mg) | ≤ 0.05 |
| Zinc (Zn) | ≤ 0.07 |
| Titanium (Ti) | ≤ 0.05 |
Note: The highly controlled levels of Iron and Silicon ensure the material maintains a continuous, uniform grain structure, which is essential for anodizing and chemical processing applications.
Mechanical Properties of 1050A H12 Aluminum Metal Sheet
The mechanical profile of the H12 temper is designed for workability.
| Property | Typical Value |
| Tensile Strength | 70 – 105 MPa |
| Yield Strength | ≥ 35 MPa |
| Elongation | ≥ 12% |
| Hardness (Brinell) | Approx. 23 HBW |
EN AW 1050A H12 offers moderate strength with excellent ductility. The minimum elongation rate of 12% means the material can stretch significantly without fracturing, accommodating deep drawing and tight-radius bending.
Core Characteristics of 1050A H12 Pure Aluminum Flat Sheet
Engineers and procurement managers specify this alloy and temper for very distinct reasons. It does not compete with structural alloys; instead, it dominates in environments requiring stability and workability.
- Excellent corrosion resistance
- High electrical conductivity
- Good formability
- Lightweight
- Non-heat-treatable
Industrial Applications of EN AW 1050A H12 Aluminum
Because of its specific mechanical and chemical properties, this material is a staple in several critical industries.
Applications of EN AW 1050A H12:
- Electrical components and conductors: Busbars, transformer windings, and cable sheathing where maximum conductivity and easy bending are required.
- Chemical processing equipment: Storage tanks, pipe jacketing, and reaction vessels due to its high resistance to chemical attack.
- Reflective panels: Lighting fixtures, solar reflectors, and architectural features, as high-purity aluminum offers exceptional reflectivity when polished.
- Roofing and cladding: Building facades, roofing sheets, and weatherproofing flashings.
- General fabrication: Food industry containers, nameplates, signage, and HVAC ducting.
It is widely used in applications requiring corrosion resistance and formability.
Comparing 1050A H12 Aluminum Plate to Other Alloys
To make an informed purchasing decision, it is helpful to understand where 1050A H12 sits in the broader aluminum market.
Compared with alloys like 3003 or 5052, EN AW 1050A H12 offers higher purity but lower strength.
- 1050A vs. 3003: 3003 contains manganese, making it about 20% stronger than 1050A. However, 1050A has superior electrical conductivity and a clearer finish when anodized.
- 1050A Vs. 5052: 5052 is heavily alloyed with magnesium, offering much higher strength and marine-grade corrosion resistance, but it is harder to bend and form than the highly ductile 1050A H12.
Read our full guide on 1050A vs 3003 aluminum for a detailed breakdown
Manufacturing and Processing Guide for 1050A H12
For fabrication shops, 1050A H12 is highly predictable. Understanding its processing behavior can reduce manufacturing costs and minimize scrap rates.
- Bending and Forming
The quarter-hard (H12) temper is ideal for press-brake forming. It typically allows for a very tight minimum bend radius (often 0 to 1 times the sheet thickness, depending on exact gauge) without surface cracking. It is stiffer than fully annealed (O) temper, meaning large sheets will not sag excessively when handled by operators.
- Welding Characteristics
1050A is highly weldable using standard TIG and MIG processes. For the best results and to prevent galvanic corrosion at the weld joint, matching filler metals such as 1050, 1070, or 1100 pure aluminum wires should be used. Because it relies on strain hardening, buyers should note that the heat-affected zone (HAZ) around the weld will lose its H12 temper and revert to a softer, annealed state.
- Surface Treatment and Anodizing
Due to the low percentage of alloying elements, 1050A H12 produces an outstanding anodic film. Whether for protective hard anodizing or decorative clear/color anodizing, the high purity ensures a uniform, bright, and defect-free surface finish.
Global Logistics and Export Packaging Standards
For international buyers securing a reliable 1050A H12 aluminum plate supplier, safe shipping is as critical as material quality. Pure aluminum is susceptible to moisture damage (white rust) during ocean freight.
We ensure all wholesale EN AW 1050A H12 aluminum sheet orders are packaged to strict export standards:
- Moisture Control: Interleaved with neutral paper or PVC film, wrapped in waterproof kraft paper and heavy-duty plastic.
- Structural Protection: Strapped securely to ISPM-15 compliant, fumigation-free wooden pallets with edge protectors to prevent strap indentation.
- Traceability: Every bundle is clearly labeled with the alloy (1050A), temper (H12), EN standard, heat number, and exact dimensions.
Need Custom Processing or Bulk Purchasing?
We provide cut-to-length services, custom slitting, and protective PE film application. Get a highly competitive 1050A H12 aluminum metal sheet price directly from the source.
Submit Your Inquiry for a Fast Quotation within 24 Hours
Supply of EN AW 1050A H12 Aluminum
GNEE, a Chinese supplier, provides EN AW 1050A H12 aluminum sheets in customized sizes, compliant with EN standards and suitable for global industrial applications. Whether your project requires high-conductivity busbars for electrical infrastructure or corrosion-resistant panels for chemical processing, our strict adherence to EN 485 and EN 573 ensures you receive premium EN 485 1050A aluminum material.
We support large-scale wholesale orders and provide comprehensive Mill Test Certificates (MTC) to guarantee material integrity. Contact us today to optimize your supply chain with our reliable manufacturing and export services.
