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AISI 334 Stainless Steel vs. 8176 Aluminum

AISI 334 stainless steel belongs to the iron alloys classification, while 8176 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 334 stainless steel and the bottom bar is 8176 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 34
15
Fatigue Strength, MPa 150
59
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 360
70
Tensile Strength: Ultimate (UTS), MPa 540
160
Tensile Strength: Yield (Proof), MPa 190
95

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 1000
170
Melting Completion (Liquidus), °C 1410
660
Melting Onset (Solidus), °C 1370
650
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 16
24

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 4.1
8.2
Embodied Energy, MJ/kg 59
150
Embodied Water, L/kg 170
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
21
Resilience: Unit (Modulus of Resilience), kJ/m3 96
66
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 19
16
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 12
7.0

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
98.6 to 99.6
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 55.7 to 62.7
0.4 to 1.0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 19 to 21
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0.030 to 0.15
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15