FabDigitFabDigit

Magnesium Alloy QE22A vs ZM10

Magnesium Alloy · grade comparison

Magnesium Alloy QE22A and ZM10 are both magnesium alloy grades. QE22A is the stronger of the two: yield strength 195 MPa (28.3 ksi) against 140 MPa (20.3 ksi) for ZM10, about 39% more. QE22A is the more ductile: elongation 3% versus 2.5% for ZM10. QE22A runs hotter in service (250°C vs 130°C continuous) and QE22A conducts heat better (113 W/m·K vs 72 W/m·K). On the shop floor, QE22A welds better (65 vs 55 out of 100) and ZM10 sits in a lower cost tier (premium, $$$) than QE22A (high, $$$$).

QE22AChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

ZM10Choose it when cost is the deciding factor.

QE22A vs ZM10: properties

QE22AZM10

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

44 GPa6.4 Msi
45 GPa6.5 Msi

Yield Strength (0.2% offset)

195 MPa28.3 ksi
140 MPa20.3 ksi

Elongation at Break

3%
2.5%

Compressive Strength

340 MPa49.3 ksi
330 MPa47.9 ksi

Fracture Toughness (K_IC)

15 MPa·√m13.7 ksi·√in
12 MPa·√m10.9 ksi·√in

Charpy V-Notch Impact (RT)

3 J2.2 ft·lbf
2 J1.5 ft·lbf

Same in both: Shear Modulus 17 GPa2.5 Msi · Bulk Modulus 45 GPa6.5 Msi · Poisson's Ratio 0.35 · Tensile Strength (Ultimate) 260 MPa37.7 ksi · Shear Strength 150 MPa21.8 ksi · Fatigue Strength (Endurance Limit) 90 MPa13.1 ksi · Hardness, Brinell 80 HB

Physical

Density and transition temperatures.

Density

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

Melting Point (Solidus)

549°C1,020 °F
440°C824 °F

Liquidus Temperature

640°C1,184 °F
596°C1,105 °F

Thermal

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

Thermal Conductivity

113 W/m·K65.3 BTU/hr·ft·°F
72 W/m·K41.6 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

26.7 µm/m·K14.8 µin/in·°F
26 µm/m·K14.4 µin/in·°F

Latent Heat of Fusion

370 J/g159 BTU/lb
373 J/g160 BTU/lb

Max Service Temperature (continuous)

250°C482 °F
130°C266 °F

Min Service Temperature

-100°C-148 °F
-60°C-76 °F

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

Electrical

Conductivity and insulation.

Electrical Conductivity

25 % IACS
12 % IACS

Electrical Resistivity

6.8×10⁻⁸ Ω·m2.68 µΩ·in
1.45×10⁻⁷ Ω·m5.71 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.

Machinability

92 / 100
95 / 100

Machinability Rating (AISI 1212 = 100 %)

400%
500%

Weldability

65 / 100
55 / 100

Castability

78 / 100
80 / 100

Same in both: Formability (cold) 10 / 100 · Brazeability / Solderability 20 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

370 MJ/kg159,072 BTU/lb
330 MJ/kg141,875 BTU/lb

Embodied Carbon (primary production)

32 kg CO₂/kg
30 kg CO₂/kg

Embodied Water

500 L/kg59.9 gal/lb
400 L/kg47.9 gal/lb

Typical Recycled Content

15%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

143 kN·m/kg
144 kN·m/kg

Specific Stiffness (E / density)

24.2 MN·m/kg
24.9 MN·m/kg

Modulus of Resilience

432 kJ/m³
218 kJ/m³

Thermal Diffusivity

62.1 mm²/s
39.8 mm²/s

Thermal Shock Resistance Index

25
16

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 scaleQE22AZM10

Manufacturing and finishing

CapabilityQE22AZM10
Default condition——
Relative cost$$$$ High$$$ Premium
Min. machined wall——
Best machined surface——

QE22A vs ZM10 — frequently asked

Is QE22A stronger than ZM10?

Yes. QE22A has a typical yield strength of 195 MPa (28.3 ksi) against 140 MPa (20.3 ksi) for ZM10 — about 39% more. Tensile strength is 260 MPa (37.7 ksi) vs 260 MPa (37.7 ksi).

Which is cheaper, QE22A or ZM10?

ZM10 is the lower-cost material: it sits in the premium tier ($$$) while QE22A is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which welds better, QE22A or ZM10?

QE22A. Its weldability rates good (65/100) against good (55/100) for ZM10.

Ready to make it?

Upload a CAD file and FabDigit prices the part in QE22A and ZM10 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.