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AISI 439 Stainless Steel vs. 713.0 Aluminum

AISI 439 stainless steel belongs to the iron alloys classification, while 713.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, 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 AISI 439 stainless steel and the bottom bar is 713.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
74 to 75
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 23
3.9 to 4.3
Fatigue Strength, MPa 170
63 to 120
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
27
Shear Strength, MPa 310
180
Tensile Strength: Ultimate (UTS), MPa 490
240 to 260
Tensile Strength: Yield (Proof), MPa 250
170

Thermal Properties

Latent Heat of Fusion, J/g 280
370
Maximum Temperature: Mechanical, °C 890
180
Melting Completion (Liquidus), °C 1510
630
Melting Onset (Solidus), °C 1430
610
Specific Heat Capacity, J/kg-K 480
860
Thermal Conductivity, W/m-K 25
150
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
35
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
100

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 7.7
3.1
Embodied Carbon, kg CO2/kg material 2.3
7.8
Embodied Energy, MJ/kg 34
150
Embodied Water, L/kg 120
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
8.7 to 9.9
Resilience: Unit (Modulus of Resilience), kJ/m3 160
210 to 220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 18
22 to 23
Strength to Weight: Bending, points 18
28 to 29
Thermal Diffusivity, mm2/s 6.7
57
Thermal Shock Resistance, points 16
10 to 11

Alloy Composition

Aluminum (Al), % 0 to 0.15
87.6 to 92.4
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 19
0 to 0.35
Copper (Cu), % 0
0.4 to 1.0
Iron (Fe), % 77.1 to 82.8
0 to 1.1
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0 to 1.0
0 to 0.6
Nickel (Ni), % 0 to 0.5
0 to 0.15
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0.2 to 1.1
0 to 0.25
Zinc (Zn), % 0
7.0 to 8.0
Residuals, % 0
0 to 0.25