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ASTM Grade HL Steel vs. EN-MC65120 Magnesium

ASTM grade HL steel belongs to the iron alloys classification, while EN-MC65120 magnesium belongs to the magnesium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 ASTM grade HL steel and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
55
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 11
3.1
Fatigue Strength, MPa 150
80
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
17
Tensile Strength: Ultimate (UTS), MPa 500
160
Tensile Strength: Yield (Proof), MPa 270
110

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1390
590
Melting Onset (Solidus), °C 1340
520
Specific Heat Capacity, J/kg-K 490
970
Thermal Expansion, µm/m-K 17
26

Otherwise Unclassified Properties

Base Metal Price, % relative 27
25
Density, g/cm3 7.8
1.9
Embodied Carbon, kg CO2/kg material 4.5
25
Embodied Energy, MJ/kg 65
190
Embodied Water, L/kg 210
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
62
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 18
34
Thermal Shock Resistance, points 11
9.8

Alloy Composition

Carbon (C), % 0.2 to 0.6
0
Chromium (Cr), % 28 to 32
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 40.8 to 53.8
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 0 to 2.0
0 to 0.15
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 18 to 22
0 to 0.0050
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.010
Sulfur (S), % 0 to 0.040
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010