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EN 1.1133 Steel vs. M1A Magnesium

EN 1.1133 steel belongs to the iron alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.1133 steel and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
45
Elongation at Break, % 19 to 24
5.5
Fatigue Strength, MPa 230 to 310
88
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
18
Shear Strength, MPa 370 to 380
120
Tensile Strength: Ultimate (UTS), MPa 580 to 620
230
Tensile Strength: Yield (Proof), MPa 320 to 460
130

Thermal Properties

Latent Heat of Fusion, J/g 250
350
Maximum Temperature: Mechanical, °C 400
95
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 49
150
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
190

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
1.7
Embodied Carbon, kg CO2/kg material 1.5
24
Embodied Energy, MJ/kg 19
160
Embodied Water, L/kg 48
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
11
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 550
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
71
Strength to Weight: Axial, points 21 to 22
38
Strength to Weight: Bending, points 20 to 21
49
Thermal Diffusivity, mm2/s 13
88
Thermal Shock Resistance, points 18 to 19
13

Alloy Composition

Calcium (Ca), % 0
0 to 0.3
Carbon (C), % 0.17 to 0.23
0
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 96.9 to 98.8
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 1.0 to 1.5
1.2 to 2.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0 to 0.010
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.035
0
Residuals, % 0
0 to 0.3