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850.0 Aluminum vs. ACI-ASTM CK35MN Steel

850.0 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CK35MN steel belongs to the iron alloys. There are 30 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 850.0 aluminum and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45
190
Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 7.9
40
Fatigue Strength, MPa 59
270
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 140
650
Tensile Strength: Yield (Proof), MPa 76
310

Thermal Properties

Latent Heat of Fusion, J/g 380
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 370
1410
Specific Heat Capacity, J/kg-K 850
470
Thermal Conductivity, W/m-K 180
12
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 14
31
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 8.5
5.9
Embodied Energy, MJ/kg 160
81
Embodied Water, L/kg 1160
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
210
Resilience: Unit (Modulus of Resilience), kJ/m3 42
240
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 12
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 69
3.3
Thermal Shock Resistance, points 6.1
14

Alloy Composition

Aluminum (Al), % 88.3 to 93.1
0
Carbon (C), % 0
0 to 0.035
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0.7 to 1.3
0 to 0.4
Iron (Fe), % 0 to 0.7
43.4 to 51.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 6.8
Nickel (Ni), % 0.7 to 1.3
20 to 22
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 5.5 to 7.0
0
Titanium (Ti), % 0 to 0.2
0
Residuals, % 0 to 0.3
0