AZ92A (M11920) Magnesium

Magnesium Alloys

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density1.8g/cm³

Elastic Modulus47GPa

Tensile Strength170 to 270MPa

Yield Strength83 to 140MPa

Brinell HardnessUnknown

Maximum Service Temperature130°C

Weight Calculator

Chemical Composition

0 to 0.010%

0.1 to 0.35%

0 to 0.3%

0 to 0.25%

8.3 to 9.7%

86.7 to 90%

RES.

Residuals res. | | 0 to 0.3%

RESIDUALS RES.

0 to 0.3%

1.6 to 2.4%

Mechanical

Elastic (Young's, Tensile) Modulus

47 GPa

Elongation at Break

2.1 to 6.8 %

Fatigue Strength

76 to 90 MPa

Poisson's Ratio

0.29

Shear Modulus

18 GPa

Shear Strength

97 to 160 MPa

Tensile Strength: Ultimate (UTS)

170 to 270 MPa

Tensile Strength: Yield (Proof)

83 to 140 MPa

Physical

Density

1.8 g/cm 3

Thermal

Latent Heat of Fusion

350 J/g

Maximum Temperature: Mechanical

130 °C

Melting Completion (Liquidus)

590 °C

Melting Onset (Solidus)

440 °C

Solidification (Pattern Maker's) Shrinkage

1.3 %

Specific Heat Capacity

980 J/kg-K

Thermal Conductivity

44 to 58 W/m-K

Thermal Diffusivity

25 to 33 mm 2 /s

Thermal Expansion

26 µm/m-K

Thermal Shock Resistance

10 to 16 points

Electrical

Electrical Conductivity: Equal Volume

11 to 12 % IACS

Electrical Conductivity: Equal Weight (Specific)

53 to 62 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

4.0 to 14 MJ/m 3

Resilience: Unit (Modulus of Resilience)

73 to 220 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

67 points

Strength to Weight: Axial

26 to 41 points

Strength to Weight: Bending

38 to 51 points

Environmental

Base Metal Price

12 % relative

Embodied Carbon

22 kg CO 2 /kg material

Embodied Energy

160 MJ/kg

Embodied Energy

160 MJ/kg 67 x 10 3 BTU/lb

Embodied Water

980 L/kg

Embodied Water

980 L/kg 120 gal/lb

Registered Designations & Aliases

AZ92A (M11920) MagnesiumM11920

Standards

ASTM B199 ASTM B199: Standard Specification for Magnesium-Alloy Permanent Mold Castings

ASTM B199 ASTM B199: Standard Specification for Magnesium-Alloy Permanent Mold Castings ASTM B403: Standard Specification for Magnesium-Alloy Investment Castings Welding and Joining of Magnesium Alloys, Liming Liu (editor), 2010 ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings Essential Readings in Magnesium Technology, Suveen N. Mathaudhu et al. (editors), 2014 Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.

ASTM B403 ASTM B403: Standard Specification for Magnesium-Alloy Investment Castings

ASTM B80 ASTM B80: Standard Specification for Magnesium-Alloy Sand Castings