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EN 1.7376 Steel vs. EQ21A Magnesium

EN 1.7376 steel belongs to the iron alloys classification, while EQ21A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 EN 1.7376 steel and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
80
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 20
2.4
Fatigue Strength, MPa 320
110
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
17
Tensile Strength: Ultimate (UTS), MPa 710
250
Tensile Strength: Yield (Proof), MPa 460
190

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Maximum Temperature: Mechanical, °C 600
160
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
560
Specific Heat Capacity, J/kg-K 470
980
Thermal Conductivity, W/m-K 26
110
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.2
25
Electrical Conductivity: Equal Weight (Specific), % IACS 11
120

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
80
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 2.1
27
Embodied Energy, MJ/kg 29
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 560
410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
63
Strength to Weight: Axial, points 25
37
Strength to Weight: Bending, points 23
47
Thermal Diffusivity, mm2/s 6.9
62
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0.12 to 0.19
0
Chromium (Cr), % 8.0 to 10
0
Copper (Cu), % 0 to 0.3
0.050 to 0.1
Iron (Fe), % 86.2 to 90.6
0
Magnesium (Mg), % 0
93.9 to 96.8
Manganese (Mn), % 0.35 to 0.65
0
Molybdenum (Mo), % 0.9 to 1.2
0
Nickel (Ni), % 0 to 0.4
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
1.3 to 1.7
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Vanadium (V), % 0 to 0.050
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3