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AWS ERNiCrMo-2 vs. K1A Magnesium

AWS ERNiCrMo-2 belongs to the nickel alloys classification, while K1A magnesium belongs to the magnesium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, 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 ERNiCrMo-2 and the bottom bar is K1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
43
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
17
Tensile Strength: Ultimate (UTS), MPa 750
180

Thermal Properties

Latent Heat of Fusion, J/g 320
350
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1410
650
Specific Heat Capacity, J/kg-K 450
1000
Thermal Conductivity, W/m-K 11
120
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
30
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
170

Otherwise Unclassified Properties

Base Metal Price, % relative 55
13
Density, g/cm3 8.4
1.6
Embodied Carbon, kg CO2/kg material 9.2
24
Embodied Energy, MJ/kg 120
170
Embodied Water, L/kg 270
970

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 23
73
Strength to Weight: Axial, points 25
31
Strength to Weight: Bending, points 22
43
Thermal Diffusivity, mm2/s 2.9
75
Thermal Shock Resistance, points 20
11

Alloy Composition

Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 20.5 to 23
0
Cobalt (Co), % 0.5 to 2.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 17 to 20
0
Magnesium (Mg), % 0
98.7 to 99.6
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 40.3 to 53.8
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0.2 to 1.0
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3