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EN 1.4971 Stainless Steel vs. 4032 Aluminum

EN 1.4971 stainless steel belongs to the iron alloys classification, while 4032 aluminum belongs to the aluminum alloys. There are 29 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 EN 1.4971 stainless steel and the bottom bar is 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
120
Elastic (Young's, Tensile) Modulus, GPa 210
73
Elongation at Break, % 34
6.7
Fatigue Strength, MPa 270
110
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 81
28
Shear Strength, MPa 530
260
Tensile Strength: Ultimate (UTS), MPa 800
390
Tensile Strength: Yield (Proof), MPa 340
320

Thermal Properties

Latent Heat of Fusion, J/g 300
570
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1460
570
Melting Onset (Solidus), °C 1410
530
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 13
140
Thermal Expansion, µm/m-K 15
19

Otherwise Unclassified Properties

Base Metal Price, % relative 70
10
Density, g/cm3 8.4
2.6
Embodied Carbon, kg CO2/kg material 7.6
7.8
Embodied Energy, MJ/kg 110
140
Embodied Water, L/kg 300
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
25
Resilience: Unit (Modulus of Resilience), kJ/m3 280
700
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 26
41
Strength to Weight: Bending, points 23
45
Thermal Diffusivity, mm2/s 3.4
59
Thermal Shock Resistance, points 19
20

Alloy Composition

Aluminum (Al), % 0
81.1 to 87.2
Carbon (C), % 0.080 to 0.16
0
Chromium (Cr), % 20 to 22.5
0 to 0.1
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0.5 to 1.3
Iron (Fe), % 24.3 to 37.1
0 to 1.0
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0.5 to 1.3
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
11 to 13.5
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15