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SAE-AISI 4037 Steel vs. EN AC-43200 Aluminum

SAE-AISI 4037 steel belongs to the iron alloys classification, while EN AC-43200 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 4037 steel and the bottom bar is EN AC-43200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
60 to 88
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 23
1.1
Fatigue Strength, MPa 210
67
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 540
190 to 260
Tensile Strength: Yield (Proof), MPa 290
97 to 220

Thermal Properties

Latent Heat of Fusion, J/g 250
540
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 48
140
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
120

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.5
7.8
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 47
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
1.8 to 2.7
Resilience: Unit (Modulus of Resilience), kJ/m3 220
66 to 330
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 19
20 to 28
Strength to Weight: Bending, points 19
28 to 35
Thermal Diffusivity, mm2/s 13
59
Thermal Shock Resistance, points 16
8.8 to 12

Alloy Composition

Aluminum (Al), % 0
86.1 to 90.8
Carbon (C), % 0.35 to 0.4
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 98 to 98.6
0 to 0.65
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0.2 to 0.45
Manganese (Mn), % 0.7 to 0.9
0 to 0.55
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
9.0 to 11
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15