ZK60A-T6 Magnesium
ZK60A-T6 magnesium is ZK60A magnesium in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements. It has the highest strength and lowest ductility compared to the other variants of ZK60A magnesium.
The graph bars on the material properties cards below compare ZK60A-T6 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
4.5 %
Fatigue Strength
150 MPa 21 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
18 GPa 2.6 x 106 psi
Shear Strength
190 MPa 28 x 103 psi
Tensile Strength: Ultimate (UTS)
330 MPa 48 x 103 psi
Tensile Strength: Yield (Proof)
250 MPa 37 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)
14 MJ/m3
Resilience: Unit (Modulus of Resilience)
690 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
63 points
Strength to Weight: Axial
49 points
Strength to Weight: Bending
56 points
Thermal Diffusivity
66 mm2/s
Thermal Shock Resistance
20 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
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
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993