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Magnesium Alloy WE54A vs ZE41A

Magnesium Alloy · grade comparison

Magnesium Alloy WE54A and ZE41A are both magnesium alloy grades. WE54A is the stronger of the two: yield strength 190 MPa (27.6 ksi) against 140 MPa (20.3 ksi) for ZE41A, about 36% more; tensile strength follows at 275 MPa (39.9 ksi) vs 205 MPa (29.7 ksi). WE54A is the more ductile: elongation 4% versus 3.5% for ZE41A, and WE54A is harder (85 HB vs 62 HB). WE54A runs hotter in service (250°C vs 150°C continuous) and ZE41A conducts heat better (113 W/m·K vs 52 W/m·K).

WE54AChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

WE54A vs ZE41A: properties

WE54AZE41A

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

17 GPa2.5 Msi
16.5 GPa2.4 Msi

Bulk Modulus

32 GPa4.6 Msi
45 GPa6.5 Msi

Poisson's Ratio

0.27
0.35

Tensile Strength (Ultimate)

275 MPa39.9 ksi
205 MPa29.7 ksi

Yield Strength (0.2% offset)

190 MPa27.6 ksi
140 MPa20.3 ksi

Elongation at Break

4%
3.5%

Shear Strength

150 MPa21.8 ksi
160 MPa23.2 ksi

Fatigue Strength (Endurance Limit)

100 MPa14.5 ksi
70 MPa10.2 ksi

Fracture Toughness (K_IC)

15 MPa·√m13.7 ksi·√in
13 MPa·√m11.8 ksi·√in

Charpy V-Notch Impact (RT)

3 J2.2 ft·lbf
4 J3 ft·lbf

Hardness, Brinell

85 HB
62 HB

Hardness, Vickers

90 HV
—

Compressive Strength

—
140 MPa20.3 ksi

Same in both: Elastic (Young's) Modulus 44 GPa6.4 Msi

Physical

Density and transition temperatures.

Density

1.85 g/cm³0.07 lb/in³
1.84 g/cm³0.07 lb/in³

Melting Point (Solidus)

545°C1,013 °F
510°C950 °F

Liquidus Temperature

640°C1,184 °F
645°C1,193 °F

Thermal

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

Thermal Conductivity

52 W/m·K30 BTU/hr·ft·°F
113 W/m·K65.3 BTU/hr·ft·°F

Specific Heat Capacity

960 J/kg·K0.23 BTU/lb·°F
1,000 J/kg·K0.24 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

26.7 µm/m·K14.8 µin/in·°F
26.1 µm/m·K14.5 µin/in·°F

Max Service Temperature (continuous)

250°C482 °F
150°C302 °F

Min Service Temperature

-100°C-148 °F
-70°C-94 °F

Same in both: Latent Heat of Fusion 350 J/g150 BTU/lb

Electrical

Conductivity and insulation.

Electrical Conductivity

10 % IACS
26 % IACS

Electrical Resistivity

1.7×10⁻⁷ Ω·m6.69 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

32 / 100
22 / 100

Manufacturability

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

Machinability

88 / 100
92 / 100

Machinability Rating (AISI 1212 = 100 %)

300%
500%

Formability (cold)

12 / 100
10 / 100

Castability

72 / 100
92 / 100

Same in both: Weldability 70 / 100 · Brazeability / Solderability 20 / 100 · Polishability 55 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

350 MJ/kg150,473 BTU/lb
340 MJ/kg146,174 BTU/lb

Typical Recycled Content

8%
15%

Same in both: Embodied Carbon (primary production) 28 kg CO₂/kg · Embodied Water 500 L/kg59.9 gal/lb

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

149 kN·m/kg
111 kN·m/kg

Specific Stiffness (E / density)

23.8 MN·m/kg
23.9 MN·m/kg

Modulus of Resilience

410 kJ/m³
223 kJ/m³

Thermal Diffusivity

29.3 mm²/s
61.4 mm²/s

Thermal Shock Resistance Index

12
20

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 scaleWE54AZE41A

Manufacturing and finishing

CapabilityWE54AZE41A
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

WE54A vs ZE41A — frequently asked

Is WE54A stronger than ZE41A?

Yes. WE54A has a typical yield strength of 190 MPa (27.6 ksi) against 140 MPa (20.3 ksi) for ZE41A — about 36% more. Tensile strength is 275 MPa (39.9 ksi) vs 205 MPa (29.7 ksi).

Which is cheaper, WE54A or ZE41A?

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.

When should I choose WE54A over ZE41A?

Pick WE54A when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in WE54A and ZE41A 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.