ISO-WD32350 (MgZn2Mn1) Magnesium
ISO-WD32350 magnesium is a magnesium alloy. WD32350 is the ISO numeric designation for this material. Additionally, the British Standard (BS) designation is MAG 131.
It has a very high thermal conductivity among magnesium alloys. In addition, it has a moderately high electrical conductivity and a moderately high melting temperature.
The properties of ISO-WD32350 magnesium include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare ISO-WD32350 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
45 GPa 6.6 x 106 psi
Elongation at Break
5.7 to 10 %
Fatigue Strength
120 to 130 MPa 18 to 19 x 103 psi
Poisson's Ratio
0.29
Shear Modulus
18 GPa 2.6 x 106 psi
Shear Strength
150 to 170 MPa 21 to 24 x 103 psi
Tensile Strength: Ultimate (UTS)
250 to 290 MPa 36 to 41 x 103 psi
Tensile Strength: Yield (Proof)
140 to 180 MPa 20 to 27 x 103 psi
Thermal Properties
Latent Heat of Fusion
340 J/g
Maximum Temperature: Mechanical
95 °C 200 °F
Melting Completion (Liquidus)
600 °C 1110 °F
Melting Onset (Solidus)
560 °C 1040 °F
Specific Heat Capacity
990 J/kg-K 0.24 BTU/lb-°F
Thermal Conductivity
130 W/m-K 72 BTU/h-ft-°F
Thermal Expansion
25 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
25 % IACS
Electrical Conductivity: Equal Weight (Specific)
130 % IACS
Otherwise Unclassified Properties
Base Metal Price
12 % relative
Density
1.7 g/cm3 110 lb/ft3
Embodied Carbon
23 kg CO2/kg material
Embodied Energy
160 MJ/kg 67 x 103 BTU/lb
Embodied Water
960 L/kg 110 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
14 to 23 MJ/m3
Resilience: Unit (Modulus of Resilience)
210 to 380 kJ/m3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
68 points
Strength to Weight: Axial
39 to 46 points
Strength to Weight: Bending
50 to 55 points
Thermal Diffusivity
73 mm2/s
Thermal Shock Resistance
16 to 18 points
Alloy Composition
| Mg | 95.7 to 97.7 | |
| Zn | 1.8 to 2.3 | |
| Mn | 0.6 to 1.3 | |
| Si | 0 to 0.1 | |
| Al | 0 to 0.1 | |
| Cu | 0 to 0.1 | |
| Fe | 0 to 0.060 | |
| Ni | 0 to 0.0050 | |
| res. | 0 to 0.3 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ISO 3116: Magnesium and magnesium alloys - Wrought magnesium alloys
Essential Readings in Magnesium Technology, Suveen N. Mathaudhu et al. (editors), 2014