AZ61A Magnesium Alloy Sheet
Product Overview
AZ61A magnesium alloy sheet from Huona is a high-performance
structural magnesium alloy tailored for applications requiring
superior strength, enhanced corrosion resistance, and excellent
formability. Unlike the more common AZ31B grade, AZ61A features a
higher aluminum content, delivering improved mechanical strength
and hardness while maintaining low density and lightweight
properties. Manufactured via precision hot rolling and controlled
solution heat treatment, this sheet offers uniform grain structure,
consistent mechanical properties, and a smooth mill finish, making
it ideal for demanding automotive, industrial, and aerospace
applications.
Core Specifications
- Alloy Grade: AZ61A (Magnesium-Aluminum-Zinc Alloy, 6% Al, 1% Zn)
- Typical Dimensions: 1.5mm × 400mm × 600mm (custom thickness
0.8–8.0mm, width/length available)
- Chemical Composition:
- Mg: Balance
- Al: 5.8–7.2%
- Zn: 0.4–1.5%
- Mn: 0.15–0.5%
- Si: ≤0.10%, Cu: ≤0.05%, Ni: ≤0.005%, Fe: ≤0.005%
- Density: ~1.80 g/cm³ (≈2/3 the density of aluminum, 1/4 of steel)
- Mechanical Properties (Temper O):
- Tensile Strength: ≥310 MPa
- Yield Strength: ≥170 MPa
- Elongation: ≥12%
- Temper: O (annealed) / H24 (strain-hardened and partially annealed)
- Compliance: ASTM B90, GB/T 5153, RoHS 2.0, REACH
Key Differentiating Advantages
1. Enhanced Strength & Hardness Over AZ31B
With a higher aluminum content, AZ61A delivers a 7–10% increase in
tensile strength and yield strength compared to AZ31B, making it
suitable for load-bearing components where structural rigidity is
critical. It offers improved resistance to deformation under stress
without sacrificing the lightweight benefits of magnesium.
2. Balanced Formability & Machinability
Despite its higher strength, AZ61A maintains excellent formability,
supporting cold bending, stamping, and deep drawing operations with
minimal cracking. Its uniform grain structure also reduces tool
wear during CNC machining, enabling the production of complex,
precision parts with tight tolerances.
3. Improved Corrosion Resistance
The controlled alloy composition and low impurity levels
(especially iron, nickel, and copper) minimize galvanic corrosion
risks. AZ61A forms a dense, protective oxide layer, providing
better atmospheric corrosion resistance than AZ31B, particularly in
industrial and marine-adjacent environments. Optional surface
treatments (anodizing, chromate conversion, or PTFE coating) can
further enhance durability.
4. Excellent Weldability & Assembly Compatibility
AZ61A exhibits good weldability via TIG/MIG processes, with reduced
susceptibility to hot cracking compared to higher-aluminum
magnesium alloys. It is also compatible with common joining methods
(riveting, adhesive bonding), enabling seamless integration into
multi-material assemblies.
5. Optimized Thermal Stability
The alloy maintains consistent mechanical properties across a wide
temperature range (-50℃ to 120℃), making it suitable for
applications subject to thermal cycling, such as automotive
powertrain components and industrial machinery parts.
Technical Specifications Table
| Attribute | Value (Typical) |
|---|
| Alloy Grade | AZ61A |
| Dimensions | 1.5mm × 400mm × 600mm (customizable) |
| Density | 1.80 g/cm³ |
| Tensile Strength (O temper) | ≥310 MPa |
| Yield Strength (O temper) | ≥170 MPa |
| Elongation | ≥12% |
| Thermal Conductivity | ~90 W/m·K |
| Electrical Resistivity | ~9.5 μΩ·cm |
| Surface Finish | Smooth mill brushed finish (standard) |
Supply & Packaging
- Form: Flat sheet, custom cut-to-size blanks, and precision-machined
parts available
- Packaging: Anti-scratch protective film + moisture-proof paper +
shock-resistant wooden crate
- MOQ: 1 sheet (sample order); bulk quantities available for
industrial production
- Customization: Thickness, width, length, temper, surface treatment
(anodizing, painting, passivation), and precision machining
Typical Application Scenarios
- Automotive: Structural components for electric vehicle (EV) battery
trays, door reinforcements, and transmission parts.
- Aerospace: Lightweight interior panels, cargo floor components, and
non-critical structural parts for aircraft and satellites.
- Industrial Automation: Robotic arm end-effectors, conveyor system
parts, and lightweight machine frames.
- Sports Equipment: High-performance bicycle frames, motorcycle
components, and lightweight protective gear.
- Consumer Electronics: High-end laptop chassis, camera bodies, and
industrial tablet housings requiring both strength and portability.
