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EN 1.4594 Stainless Steel vs. 4032 Aluminum

EN 1.4594 stainless steel belongs to the iron alloys classification, while 4032 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4594 stainless steel and the bottom bar is 4032 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 11 to 17
6.7
Fatigue Strength, MPa 490 to 620
110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
28
Shear Strength, MPa 620 to 700
260
Tensile Strength: Ultimate (UTS), MPa 1020 to 1170
390
Tensile Strength: Yield (Proof), MPa 810 to 1140
320

Thermal Properties

Latent Heat of Fusion, J/g 280
570
Maximum Temperature: Mechanical, °C 820
180
Melting Completion (Liquidus), °C 1450
570
Melting Onset (Solidus), °C 1410
530
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
140
Thermal Expansion, µm/m-K 11
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 15
10
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 3.2
7.8
Embodied Energy, MJ/kg 45
140
Embodied Water, L/kg 130
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
25
Resilience: Unit (Modulus of Resilience), kJ/m3 1660 to 3320
700
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 36 to 41
41
Strength to Weight: Bending, points 29 to 31
45
Thermal Diffusivity, mm2/s 4.4
59
Thermal Shock Resistance, points 34 to 39
20

Alloy Composition

Aluminum (Al), % 0
81.1 to 87.2
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 13 to 15
0 to 0.1
Copper (Cu), % 1.2 to 2.0
0.5 to 1.3
Iron (Fe), % 72.6 to 79.5
0 to 1.0
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.2 to 2.0
0
Nickel (Ni), % 5.0 to 6.0
0.5 to 1.3
Niobium (Nb), % 0.15 to 0.6
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.7
11 to 13.5
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15