EV31A (EV31A-T6, M12310) Magnesium

EV31A magnesium is an alloy of magnesium. It is typically furnished in the T6 temper. EV31A is the ASTM designation for this material. M12310 is the UNS number.

Material Properties

Brinell Hardness70

Compressive (Crushing) Strength360 MPa (52 x 103 psi)

Density1.8 g/cm3 (110 lb/ft3)

Elastic (Young's, Tensile) Modulus44 GPa (6.4 x 106 psi)

Electrical Conductivity18 % IACS

Electrical Resistivity Order of Magnitude-7 10x Ω-m

Elongation at Break3.5 %

Fatigue Strength (Endurance Limit)120 MPa (17 x 103 psi)

Fracture Toughness15 MPa-m1/2

Melting Onset (Solidus)590 °C (1090 °F)

Modulus of Resilience (Unit Resilience)330 kJ/m3

Poisson's Ratio0.27

Shear Strength170 MPa (25 x 103 psi)

Specific Heat Capacity1000 J/kg-K

Strength to Weight Ratio140 kN-m/kg

Tensile Strength: Ultimate (UTS)260 MPa (38 x 103 psi)

Tensile Strength: Yield (Proof)170 MPa (25 x 103 psi)

Thermal Conductivity86 W/m-K

Thermal Diffusivity48 m2/s

Thermal Expansion27 µm/m-K

Unit Rupture Work (Ultimate Resilience)8.1 MJ/m3

The length of each bar compares the given value to the highest value in the database.

Further Reading

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993

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