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AWS E70C-B2L vs. M1A Magnesium

AWS E70C-B2L belongs to the iron alloys classification, while M1A 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 E70C-B2L and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 21
5.5
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
18
Tensile Strength: Ultimate (UTS), MPa 580
230
Tensile Strength: Yield (Proof), MPa 460
130

Thermal Properties

Latent Heat of Fusion, J/g 260
350
Melting Completion (Liquidus), °C 1460
610
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
990
Thermal Conductivity, W/m-K 39
150
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
190

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
12
Density, g/cm3 7.8
1.7
Embodied Carbon, kg CO2/kg material 1.6
24
Embodied Energy, MJ/kg 22
160
Embodied Water, L/kg 54
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
11
Resilience: Unit (Modulus of Resilience), kJ/m3 550
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
71
Strength to Weight: Axial, points 20
38
Strength to Weight: Bending, points 20
49
Thermal Diffusivity, mm2/s 11
88
Thermal Shock Resistance, points 17
13

Alloy Composition

Calcium (Ca), % 0
0 to 0.3
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 1.0 to 1.5
0
Copper (Cu), % 0 to 0.35
0 to 0.050
Iron (Fe), % 95.1 to 98
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 0.4 to 1.0
1.2 to 2.0
Molybdenum (Mo), % 0.4 to 0.65
0
Nickel (Ni), % 0 to 0.2
0 to 0.010
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.25 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0 to 0.030
0
Residuals, % 0
0 to 0.3