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AISI 334 Stainless Steel vs. B390.0 Aluminum

AISI 334 stainless steel belongs to the iron alloys classification, while B390.0 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 B390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
76
Elongation at Break, % 34
0.88
Fatigue Strength, MPa 150
170
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
29
Tensile Strength: Ultimate (UTS), MPa 540
320
Tensile Strength: Yield (Proof), MPa 190
250

Thermal Properties

Latent Heat of Fusion, J/g 290
640
Maximum Temperature: Mechanical, °C 1000
170
Melting Completion (Liquidus), °C 1410
580
Melting Onset (Solidus), °C 1370
580
Specific Heat Capacity, J/kg-K 480
880
Thermal Expansion, µm/m-K 16
20

Otherwise Unclassified Properties

Base Metal Price, % relative 22
11
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 4.1
7.3
Embodied Energy, MJ/kg 59
130
Embodied Water, L/kg 170
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
2.6
Resilience: Unit (Modulus of Resilience), kJ/m3 96
410
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 19
32
Strength to Weight: Bending, points 19
38
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
72.7 to 79.6
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 55.7 to 62.7
0 to 1.3
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 19 to 21
0 to 0.1
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
16 to 18
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0 to 0.1
Zinc (Zn), % 0
0 to 1.5
Residuals, % 0
0 to 0.2