MakeItFrom.com
Menu (ESC)

SAE-AISI 9254 Steel vs. 2124 Aluminum

SAE-AISI 9254 steel belongs to the iron alloys classification, while 2124 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 SAE-AISI 9254 steel and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 20
5.7
Fatigue Strength, MPa 280
130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
27
Shear Strength, MPa 410
280
Tensile Strength: Ultimate (UTS), MPa 660
490
Tensile Strength: Yield (Proof), MPa 410
430

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 410
190
Melting Completion (Liquidus), °C 1440
640
Melting Onset (Solidus), °C 1400
500
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 46
150
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
38
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
10
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 1.5
8.2
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 49
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
27
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 24
45
Strength to Weight: Bending, points 22
46
Thermal Diffusivity, mm2/s 12
58
Thermal Shock Resistance, points 20
21

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.7
Carbon (C), % 0.51 to 0.59
0
Chromium (Cr), % 0.6 to 0.8
0 to 0.1
Copper (Cu), % 0
3.8 to 4.9
Iron (Fe), % 96.1 to 97.1
0 to 0.3
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0.6 to 0.8
0.3 to 0.9
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 1.2 to 1.6
0 to 0.2
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15