ZK40A (ZK40A-T5, M16400) Magnesium
Magnesium Alloys
Property Overview
Density1.8g/cm³
Elastic Modulus45GPa
Tensile Strength280MPa
Yield Strength260MPa
Brinell HardnessUnknown
Maximum Service Temperature120°C
Chemical Composition
MG
94.2 to 96.1%
RES.
Residuals res. | | 0 to 0.3%
RESIDUALS RES.
0 to 0.3%
ZN
3.5 to 4.5%
ZR
0.45 to 1.0%
Mechanical
Elastic (Young's, Tensile) Modulus
45 GPa
Elongation at Break
4.2 %
Fatigue Strength
190 MPa
Poisson's Ratio
0.29
Shear Modulus
17 GPa
Shear Strength
160 MPa
Tensile Strength: Ultimate (UTS)
280 MPa
Tensile Strength: Yield (Proof)
260 MPa
Physical
Density
1.8 g/cm 3
Thermal
Latent Heat of Fusion
340 J/g
Maximum Temperature: Mechanical
120 °C
Melting Completion (Liquidus)
600 °C
Melting Onset (Solidus)
540 °C
Specific Heat Capacity
970 J/kg-K
Thermal Conductivity
110 W/m-K
Thermal Diffusivity
62 mm 2 /s
Thermal Expansion
26 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
27 % IACS
Electrical Conductivity: Equal Weight (Specific)
130 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
12 MJ/m 3
Resilience: Unit (Modulus of Resilience)
740 kJ/m 3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
65 points
Strength to Weight: Axial
43 points
Strength to Weight: Bending
53 points
Environmental
Base Metal Price
13 % relative
Embodied Carbon
24 kg CO 2 /kg material
Embodied Energy
160 MJ/kg
Embodied Energy
160 MJ/kg 71 x 10 3 BTU/lb
Embodied Water
950 L/kg
Embodied Water
950 L/kg 110 gal/lb
Registered Designations & Aliases
M16400ZK40A (ZK40A-T5, M16400) MagnesiumZK40A-T5
Standards
ASTM B107 ASTM B107: Standard Specification for Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire
ASTM B107 ASTM B107: Standard Specification for Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire 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.