FabDigitFabDigit

Magnesium Alloy QE22A vs ZE63A

Magnesium Alloy · grade comparison

Magnesium Alloy QE22A and ZE63A are both magnesium alloy grades. ZE63A is the stronger of the two: tensile strength 300 MPa (43.5 ksi) against 260 MPa (37.7 ksi) for QE22A, about 15% more. ZE63A is the more ductile: elongation 10% versus 3% for QE22A, and QE22A is harder (80 HB vs 65 HB). QE22A runs hotter in service (250°C vs 150°C continuous).

QE22AChoose it when the part sees heat.

ZE63AChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

QE22A vs ZE63A: properties

QE22AZE63A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

44 GPa6.4 Msi
45 GPa6.5 Msi

Tensile Strength (Ultimate)

260 MPa37.7 ksi
300 MPa43.5 ksi

Yield Strength (0.2% offset)

195 MPa28.3 ksi
190 MPa27.6 ksi

Elongation at Break

3%
10%

Compressive Strength

340 MPa49.3 ksi
195 MPa28.3 ksi

Shear Strength

150 MPa21.8 ksi
165 MPa23.9 ksi

Fatigue Strength (Endurance Limit)

90 MPa13.1 ksi
110 MPa16 ksi

Charpy V-Notch Impact (RT)

3 J2.2 ft·lbf
—

Hardness, Brinell

80 HB
65 HB

Same in both: Shear Modulus 17 GPa2.5 Msi · Bulk Modulus 45 GPa6.5 Msi · Poisson's Ratio 0.35 · Fracture Toughness (K_IC) 15 MPa·√m13.7 ksi·√in

Physical

Density and transition temperatures.

Density

1.82 g/cm³0.07 lb/in³
1.87 g/cm³0.07 lb/in³

Melting Point (Solidus)

549°C1,020 °F
510°C950 °F

Liquidus Temperature

640°C1,184 °F
635°C1,175 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

113 W/m·K65.3 BTU/hr·ft·°F
110 W/m·K63.6 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

26.7 µm/m·K14.8 µin/in·°F
27 µm/m·K15 µin/in·°F

Latent Heat of Fusion

370 J/g159 BTU/lb
340 J/g146 BTU/lb

Max Service Temperature (continuous)

250°C482 °F
150°C302 °F

Min Service Temperature

-100°C-148 °F
-70°C-94 °F

Same in both: Specific Heat Capacity 1,000 J/kg·K0.24 BTU/lb·°F

Electrical

Conductivity and insulation.

Electrical Conductivity

25 % IACS
26 % IACS

Electrical Resistivity

6.8×10⁻⁸ Ω·m2.68 µΩ·in
6.6×10⁻⁸ Ω·m2.6 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Galvanic Potential (seawater, vs SCE)

-1.55 V
-1.6 V

Corrosion Resistance

30 / 100
22 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Weldability

65 / 100
70 / 100

Formability (cold)

10 / 100
—

Castability

78 / 100
75 / 100

Same in both: Machinability 92 / 100 · Machinability Rating (AISI 1212 = 100 %) 400% · Brazeability / Solderability 20 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

370 MJ/kg159,072 BTU/lb
360 MJ/kg154,772 BTU/lb

Embodied Carbon (primary production)

32 kg CO₂/kg
38 kg CO₂/kg

Typical Recycled Content

15%
10%

Same in both: Embodied Water 500 L/kg59.9 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

143 kN·m/kg
160 kN·m/kg

Specific Stiffness (E / density)

24.2 MN·m/kg
24.1 MN·m/kg

Modulus of Resilience

432 kJ/m³
401 kJ/m³

Thermal Diffusivity

62.1 mm²/s
58.8 mm²/s

Thermal Shock Resistance Index

25
27

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.

701001502001.41.51.61.71.8Density (g/cm³)Yield strength (MPa) — log scaleQE22AZE63A

Manufacturing and finishing

CapabilityQE22AZE63A
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

QE22A vs ZE63A — frequently asked

Is ZE63A stronger than QE22A?

Yes. ZE63A has a typical tensile strength of 300 MPa (43.5 ksi) against 260 MPa (37.7 ksi) for QE22A — about 15% more.

Which is cheaper, QE22A or ZE63A?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which welds better, QE22A or ZE63A?

ZE63A. Its weldability rates very good (70/100) against good (65/100) for QE22A.

Ready to make it?

Upload a CAD file and FabDigit prices the part in QE22A 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.