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SAE-AISI H25 Steel vs. 4032 Aluminum

SAE-AISI H25 steel belongs to the iron alloys classification, while 4032 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 H25 steel and the bottom bar is 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
73
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 79
28
Tensile Strength: Ultimate (UTS), MPa 710 to 1620
390

Thermal Properties

Latent Heat of Fusion, J/g 250
570
Melting Completion (Liquidus), °C 1750
570
Melting Onset (Solidus), °C 1700
530
Specific Heat Capacity, J/kg-K 420
900
Thermal Conductivity, W/m-K 26
140
Thermal Expansion, µm/m-K 12
19

Otherwise Unclassified Properties

Base Metal Price, % relative 38
10
Density, g/cm3 9.1
2.6
Embodied Carbon, kg CO2/kg material 6.2
7.8
Embodied Energy, MJ/kg 93
140
Embodied Water, L/kg 83
1030

Common Calculations

Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 22
53
Strength to Weight: Axial, points 22 to 50
41
Strength to Weight: Bending, points 20 to 34
45
Thermal Diffusivity, mm2/s 6.7
59
Thermal Shock Resistance, points 22 to 49
20

Alloy Composition

Aluminum (Al), % 0
81.1 to 87.2
Carbon (C), % 0.22 to 0.32
0
Chromium (Cr), % 3.8 to 4.5
0 to 0.1
Copper (Cu), % 0 to 0.25
0.5 to 1.3
Iron (Fe), % 77.2 to 81.3
0 to 1.0
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0.15 to 0.4
0
Nickel (Ni), % 0 to 0.3
0.5 to 1.3
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.4
11 to 13.5
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0.4 to 0.6
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15