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SAE-AISI 9254 Steel vs. 360.0 Aluminum

SAE-AISI 9254 steel belongs to the iron alloys classification, while 360.0 aluminum belongs to the aluminum alloys. 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 SAE-AISI 9254 steel and the bottom bar is 360.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
75
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 20
2.5
Fatigue Strength, MPa 280
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Shear Strength, MPa 410
190
Tensile Strength: Ultimate (UTS), MPa 660
300
Tensile Strength: Yield (Proof), MPa 410
170

Thermal Properties

Latent Heat of Fusion, J/g 270
530
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1440
590
Melting Onset (Solidus), °C 1400
570
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 46
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 1.5
7.8
Embodied Energy, MJ/kg 20
140
Embodied Water, L/kg 49
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
6.4
Resilience: Unit (Modulus of Resilience), kJ/m3 450
200
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 24
32
Strength to Weight: Bending, points 22
38
Thermal Diffusivity, mm2/s 12
55
Thermal Shock Resistance, points 20
14

Alloy Composition

Aluminum (Al), % 0
85.1 to 90.6
Carbon (C), % 0.51 to 0.59
0
Chromium (Cr), % 0.6 to 0.8
0
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 96.1 to 97.1
0 to 2.0
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0.6 to 0.8
0 to 0.35
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 1.2 to 1.6
9.0 to 10
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.25