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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

Magnesium (Mg) 95.7 to 97.7
Zinc (Zn) 1.8 to 2.3
Manganese (Mn) 0.6 to 1.3
Silicon (Si) 0 to 0.1
Aluminum (Al) 0 to 0.1
Copper (Cu) 0 to 0.1
Iron (Fe) 0 to 0.060
Nickel (Ni) 0 to 0.0050
Residuals 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