Magnesium AZ31B-H24

Magnesium AZ31B-H24 strength, stiffness, density and thermal properties, with their source.

A bracket in Magnesium AZ31B-H24, brushed finish.

Mechanical
Process	Wrought
Yield strength	220MPasourcetypical, H24, 0.5-6 mm, 0.2 % proof stress
Ultimate tensile strength	290MPasourcetypical, H24, 0.5-6 mm
Elongation at break	13%sourcetypical, H24, 0.5-6 mm, gauge 5.65√A
Young's modulus (stiffness)	44.8GPasourcetypical (handbook physical constant)
Density	1,769kg/m³sourcenominal
Strength to weight	124kN·m/kg
Stiffness to weight	25.3MN·m/kg
Poisson's ratio	0.35sourcetypical (handbook physical constant)
Shear modulus	16.6GPa
Bulk modulus	49.8GPa
Speed of sound	5,032m/s
Thermal
Thermal conductivity	76.9W/m·Ksourcetypical (temper/temperature not stated)
Thermal expansion	26.8µm/m·Ksourcetypical (temperature range not stated)
100 mm part over a 50 °C swing	134µm growth
Specific heat	1,040J/kg·Ksourcetypical
Heats up and cools (diffusivity)	41.8mm²/s
Thermal shock resistance	9,159W/m
Max service temperature	149°Csourcestated application limit
Values for	AZ31B-H24 sheet 0.016-0.062 in., MIL-HDBK-5J Table 4.2.1.0(b) (AMS 4377); strengths are S-basis MINIMUMS

Among 59 materials

Stiffness against density

Strength against density