MakeItFrom.com
Menu (ESC)

7475 Aluminum vs. EN 1.4618 Stainless Steel

7475 aluminum belongs to the aluminum alloys classification, while EN 1.4618 stainless steel belongs to the iron alloys. There are 30 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 7475 aluminum and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 10 to 12
51
Fatigue Strength, MPa 190 to 210
240 to 250
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 320 to 350
480 to 500
Tensile Strength: Ultimate (UTS), MPa 530 to 590
680 to 700
Tensile Strength: Yield (Proof), MPa 440 to 520
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Maximum Temperature: Mechanical, °C 180
900
Melting Completion (Liquidus), °C 640
1400
Melting Onset (Solidus), °C 480
1360
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 140 to 160
15
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33 to 42
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 98 to 120
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1130
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53 to 68
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 1390 to 1920
160 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 49 to 55
24 to 25
Strength to Weight: Bending, points 48 to 52
22 to 23
Thermal Diffusivity, mm2/s 53 to 63
4.0
Thermal Shock Resistance, points 23 to 26
15 to 16

Alloy Composition

Aluminum (Al), % 88.6 to 91.6
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0.18 to 0.25
16.5 to 18.5
Copper (Cu), % 1.2 to 1.9
1.0 to 2.5
Iron (Fe), % 0 to 0.12
62.7 to 72.5
Magnesium (Mg), % 1.9 to 2.6
0
Manganese (Mn), % 0 to 0.060
5.5 to 9.5
Nickel (Ni), % 0
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.060
0
Zinc (Zn), % 5.1 to 6.2
0
Residuals, % 0 to 0.15
0