Magnesium Alloy AZ80A vs MA2
Magnesium Alloy · grade comparison
Magnesium Alloy AZ80A and MA2 are both magnesium alloy grades. AZ80A is the stronger of the two: yield strength 250 MPa (36.3 ksi) against 130 MPa (18.9 ksi) for MA2, about 92% more; tensile strength follows at 340 MPa (49.3 ksi) vs 250 MPa (36.3 ksi). In exchange, MA2 is the more ductile: elongation 15% versus 11% for AZ80A, and AZ80A is harder (60 HB vs 50 HB). MA2 conducts heat better (96 W/m·K vs 78 W/m·K). On the shop floor, MA2 welds better (very good vs fair) and AZ80A sits in a lower cost tier (standard, $$) than MA2 (premium, $$$).
AZ80AChoose it when strength drives the design, or when cost is the deciding factor.
MA2Choose it when the part is bent, formed or impact-loaded, or when it will be welded.
AZ80A vs MA2: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all magnesium alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all magnesium alloy grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 45 GPa6.5 Msi · Shear Modulus 17 GPa2.5 Msi · Poisson's Ratio 0.35 · Compressive Strength 240 MPa34.8 ksi
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Latent Heat of Fusion
Same in both: Specific Heat Capacity 1,000 J/kg·K0.24 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 26 µm/m·K14.4 µin/in·°F · Max Service Temperature (continuous) 120°C248 °F · Min Service Temperature -70°C-94 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Same in both: Corrosion Resistance 20 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Weldability
Formability (cold)
Brazeability / Solderability
Castability
Same in both: Machinability Rating (AISI 1212 = 100 %) 500% · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Same in both: Embodied Water 500 L/kg59.9 gal/lb
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every magnesium alloy grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | AZ80A | MA2 |
|---|---|---|
| CNC machining | Yes | — |
| Sheet metal | Yes | — |
| Default condition | F | — |
| Relative cost | $$ Standard | $$$ Premium |
| Min. machined wall | 0.8 mm | — |
| Best machined surface | Ra 0.8 µm | — |
| Anodizing Type II | Yes | — |
| Chem Film (Alodine) | Yes | — |
| E-Coating | Yes | — |
| Hard Anodize Type III w/ PTFE | Yes | — |
| Hard Anodizing Type III | Yes | — |
| Painting | Yes | — |
| Powder Coating | Yes | — |
AZ80A vs MA2 — frequently asked
Is AZ80A stronger than MA2?
Yes. AZ80A has a typical yield strength of 250 MPa (36.3 ksi) against 130 MPa (18.9 ksi) for MA2 — about 92% more. Tensile strength is 340 MPa (49.3 ksi) vs 250 MPa (36.3 ksi).
Which is cheaper, AZ80A or MA2?
AZ80A is the lower-cost material: it sits in the standard tier ($$) while MA2 is premium ($$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
Which is easier to machine, AZ80A or MA2?
AZ80A, by a small margin. Both rate excellent for machinability — 98/100 against 92/100 for MA2; for welding the order is MA2 first (very good, 72/100) then AZ80A (fair, 45/100).
Ready to make it?
Upload a CAD file and FabDigit prices the part in AZ80A and MA2 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.