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ZE41A (ZE41A-T5, 3.5101, M16410) Magnesium

ZE41A magnesium is a magnesium alloy. It is typically furnished in the T5 temper. To achieve this temper, the metal is artificially aged until it meets standard mechanical property requirements. ZE41A is the ASTM designation for this material. 3.5101 is the EN numeric designation. And M16410 is the UNS number.

It has a moderately high density among magnesium alloys. In addition, it has a fairly high base cost and a moderately high thermal conductivity.

The graph bars on the material properties cards below compare ZE41A magnesium to other magnesium alloys (top) and the entire database (bottom).

Mechanical Properties

Brinell Hardness


Compressive (Crushing) Strength

350 MPa 50 x 103 psi

Elastic (Young's, Tensile) Modulus

45 GPa 6.6 x 106 psi

Elongation at Break

3.3 %

Fatigue Strength

98 MPa 14 x 103 psi

Fracture Toughness

16 MPa-m1/2 14290 psi-in1/2

Poisson's Ratio


Shear Modulus

18 GPa 2.6 x 106 psi

Shear Strength

150 MPa 22 x 103 psi

Tensile Strength: Ultimate (UTS)

210 MPa 30 x 103 psi

Tensile Strength: Yield (Proof)

140 MPa 21 x 103 psi

Thermal Properties

Melting Completion (Liquidus)

640 °C 1180 °F

Melting Onset (Solidus)

540 °C 1010 °F

Solidification (Pattern Maker's) Shrinkage

1.3 %

Specific Heat Capacity

970 J/kg-K 0.23 BTU/lb-°F

Thermal Conductivity

110 W/m-K 63 BTU/h-ft-°F

Thermal Expansion

27 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

27 % IACS

Electrical Conductivity: Equal Weight (Specific)

130 % IACS

Otherwise Unclassified Properties

Base Metal Price

18 % relative


1.9 g/cm3 120 lb/ft3

Embodied Carbon

24 kg CO2/kg material

Embodied Energy

170 MJ/kg 75 x 103 BTU/lb

Embodied Water

940 L/kg 110 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

6.1 MJ/m3

Resilience: Unit (Modulus of Resilience)

220 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

63 points

Strength to Weight: Axial

31 points

Strength to Weight: Bending

41 points

Thermal Diffusivity

59 m2/s

Thermal Shock Resistance

12 points

Alloy Composition

Magnesium (Mg) 91.7 to 95.4
Zinc (Zn) 3.5 to 5.0
Zirconium (Zr) 0.4 to 1.0
Manganese (Mn) 0 to 0.15
Copper (Cu) 0 to 0.1
Silicon (Si) 0 to 0.010
Nickel (Ni) 0 to 0.010
Iron (Fe) 0 to 0.010
Unspecified Rare Earths 0.75 to 1.8
Residuals 0 to 0.3

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings

ASTM B403: Standard Specification for Magnesium-Alloy Investment Castings

Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.

Welding and Joining of Magnesium Alloys, Liming Liu ed., 2010

ISO 16220: Magnesium and magnesium alloys - Magnesium alloy ingots and castings