WE43B (WE43B-T6, M18432) Magnesium

WE43B magnesium is an alloy of magnesium. It is typically furnished in the T6 temper. WE43B is the ASTM designation for this material. M18432 is the UNS number.

Material Properties

Base Metal Price56 % rel

Density2.1 g/cm3 (130 lb/ft3)

Elastic (Young's, Tensile) Modulus46 GPa (6.7 x 106 psi)

Elongation at Break2.3 %

Melting Onset (Solidus)550 °C (1020 °F)

Modulus of Resilience (Unit Resilience)430 kJ/m3

Poisson's Ratio0.29

Solidification (Pattern Maker's) Shrinkage1.6 %

Specific Heat Capacity950 J/kg-K

Strength to Weight Ratio120 kN-m/kg

Tensile Strength: Ultimate (UTS)250 MPa (36 x 103 psi)

Tensile Strength: Yield (Proof)200 MPa (29 x 103 psi)

Thermal Expansion24 µm/m-K

Unit Rupture Work (Ultimate Resilience)5.4 MJ/m3

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

Alloy Composition

Magnesium (Mg)89.8 to 93.5 %

Yttrium (Y)3.7 to 4.3 %

Unspecified Rare Earths2.4 to 4.4 %

Zirconium (Zr)0.4 to 1.0 %

Lithium (Li)0 to 0.2 %

Zinc (Zn)0 to 0.2 %

Manganese (Mn)0 to 0.030 %

Copper (Cu)0 to 0.020 %

Iron (Fe)0 to 0.010 %

Nickel (Ni)0 to 0.0050 %

Further Reading

ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings