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ASTM Grade HN Steel vs. EN AC-44500 Aluminum

ASTM grade HN steel belongs to the iron alloys classification, while EN AC-44500 aluminum belongs to the aluminum alloys. There are 24 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 ASTM grade HN steel and the bottom bar is EN AC-44500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
68
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 9.0
1.1
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 500
270

Thermal Properties

Latent Heat of Fusion, J/g 310
570
Maximum Temperature: Mechanical, °C 1080
170
Melting Completion (Liquidus), °C 1400
590
Melting Onset (Solidus), °C 1350
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 13
130
Thermal Expansion, µm/m-K 16
21

Otherwise Unclassified Properties

Base Metal Price, % relative 26
9.5
Density, g/cm3 7.9
2.5
Embodied Carbon, kg CO2/kg material 4.6
7.7
Embodied Energy, MJ/kg 66
140
Embodied Water, L/kg 180
1050

Common Calculations

Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 18
36
Thermal Diffusivity, mm2/s 3.5
57
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 0
83.7 to 89.5
Carbon (C), % 0.2 to 0.5
0
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 44.9 to 57.8
0 to 1.0
Magnesium (Mg), % 0
0 to 0.4
Manganese (Mn), % 0 to 2.0
0 to 0.55
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
10.5 to 13.5
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.25