Magnesium Alloy WE43 vs ZE63A
Magnesium Alloy · grade comparison
Magnesium Alloy WE43 and ZE63A are both magnesium alloy grades. ZE63A is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 175 MPa (25.4 ksi) for WE43, about 9% more; tensile strength follows at 300 MPa (43.5 ksi) vs 260 MPa (37.7 ksi). In exchange, WE43 is the more ductile: elongation 12% versus 10% for ZE63A, and WE43 is harder (70 HB vs 65 HB). WE43 runs hotter in service (200°C vs 150°C continuous) and ZE63A conducts heat better (110 W/m·K vs 51.3 W/m·K). On the shop floor, WE43 sits in a lower cost tier (standard, $$) than ZE63A (high, $$$$).
WE43Choose it when the part is bent, formed or impact-loaded, or when the part sees heat.
ZE63AChoose it when strength drives the design.
WE43 vs ZE63A: 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.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Vickers
Same in both: Fatigue Strength (Endurance Limit) 110 MPa16 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
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Max Service Temperature (continuous)
Min Service Temperature
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 22 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Castability
Brazeability / Solderability
Same in both: Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Water
Same in both: Embodied Carbon (primary production) 38 kg CO₂/kg · Typical Recycled Content 10%
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 | WE43 | ZE63A |
|---|---|---|
| CNC machining | Yes | — |
| Default condition | F | — |
| Relative cost | $$ Standard | $$$$ High |
| Min. machined wall | 0.8 mm | — |
| Best machined surface | Ra 0.8 µm | — |
| Anodizing Type II | Yes | — |
| Chem Film (Alodine) | Yes | — |
| E-Coating | Yes | — |
| Hard Anodize Type III w/ PTFE | Yes | — |
| Hard Anodizing Type III | Yes | — |
| Painting | Yes | — |
| Powder Coating | Yes | — |
WE43 vs ZE63A — frequently asked
Is ZE63A stronger than WE43?
Yes. ZE63A has a typical yield strength of 190 MPa (27.6 ksi) against 175 MPa (25.4 ksi) for WE43 — about 9% more. Tensile strength is 300 MPa (43.5 ksi) vs 260 MPa (37.7 ksi).
Which is cheaper, WE43 or ZE63A?
WE43 is the lower-cost material: it sits in the standard tier ($$) while ZE63A is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
When should I choose WE43 over ZE63A?
Pick WE43 when the part is bent, formed or impact-loaded, or when the part sees heat. Pick ZE63A when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in WE43 and ZE63A 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.