ZK60A-T5 Magnesium
ZK60A-T5 magnesium is ZK60A magnesium in the T5 temper. To achieve this temper, the metal is artificially aged until it meets standard mechanical property requirements. It has the highest ductility compared to the other variants of ZK60A magnesium.
The graph bars on the material properties cards below compare ZK60A-T5 magnesium to other magnesium alloys (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
46 GPa 6.6 x 106 psi
Elongation at Break
9.9 %
Fatigue Strength
180 MPa 26 x 103 psi
Fracture Toughness
34 MPa-m1/2 31 x 103 psi-in1/2
Poisson's Ratio
0.29
Shear Modulus
18 GPa 2.6 x 106 psi
Shear Strength
170 MPa 25 x 103 psi
Tensile Strength: Ultimate (UTS)
320 MPa 47 x 103 psi
Tensile Strength: Yield (Proof)
230 MPa 33 x 103 psi
Thermal Properties
Latent Heat of Fusion
330 J/g
Maximum Temperature: Mechanical
120 °C 250 °F
Melting Completion (Liquidus)
600 °C 1110 °F
Melting Onset (Solidus)
550 °C 1020 °F
Specific Heat Capacity
960 J/kg-K 0.23 BTU/lb-°F
Thermal Conductivity
120 W/m-K 69 BTU/h-ft-°F
Thermal Expansion
26 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
30 % IACS
Electrical Conductivity: Equal Weight (Specific)
140 % IACS
Otherwise Unclassified Properties
Base Metal Price
13 % relative
Density
1.9 g/cm3 120 lb/ft3
Embodied Carbon
23 kg CO2/kg material
Embodied Energy
160 MJ/kg 70 x 103 BTU/lb
Embodied Water
940 L/kg 110 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
29 MJ/m3
Resilience: Unit (Modulus of Resilience)
570 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
63 points
Strength to Weight: Axial
48 points
Strength to Weight: Bending
56 points
Thermal Diffusivity
66 mm2/s
Thermal Shock Resistance
19 points
Alloy Composition
| Mg | 92.5 to 94.8 | |
| Zn | 4.8 to 6.2 | |
| Zr | 0.45 to 1.0 | |
| res. | 0 to 0.3 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B107: Standard Specification for Magnesium-Alloy Extruded Bars, Rods, Profiles, Tubes, and Wire
Advances in Wrought Magnesium Alloys: Fundamentals of Processing, Properties and Applications, Colleen Bettles and Matthew Barnett (editors), 2012
ASTM B91: Standard Specification for Magnesium-Alloy Forgings
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.
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993