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AWS ER80S-Ni2 vs. ZK61A Magnesium

AWS ER80S-Ni2 belongs to the iron alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS ER80S-Ni2 and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 27
5.8 to 7.1
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
18
Tensile Strength: Ultimate (UTS), MPa 620
290 to 310
Tensile Strength: Yield (Proof), MPa 540
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 260
330
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
530
Specific Heat Capacity, J/kg-K 470
960
Thermal Conductivity, W/m-K 52
120
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
29
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
130

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
13
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 1.6
23
Embodied Energy, MJ/kg 22
160
Embodied Water, L/kg 51
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 770
370 to 420
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
62
Strength to Weight: Axial, points 22
42 to 45
Strength to Weight: Bending, points 21
50 to 53
Thermal Diffusivity, mm2/s 14
65
Thermal Shock Resistance, points 18
17 to 18

Alloy Composition

Carbon (C), % 0 to 0.12
0
Copper (Cu), % 0 to 0.35
0 to 0.1
Iron (Fe), % 94.2 to 97.6
0
Magnesium (Mg), % 0
92.1 to 93.9
Manganese (Mn), % 0 to 1.3
0
Nickel (Ni), % 2.0 to 2.8
0 to 0.010
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.4 to 0.8
0
Sulfur (S), % 0 to 0.025
0
Zinc (Zn), % 0
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3