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AISI 334 Stainless Steel vs. 319.0 Aluminum

AISI 334 stainless steel belongs to the iron alloys classification, while 319.0 aluminum belongs to the aluminum alloys. There are 27 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 319.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
78 to 84
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 34
1.8 to 2.0
Fatigue Strength, MPa 150
76 to 80
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 360
170 to 210
Tensile Strength: Ultimate (UTS), MPa 540
190 to 240
Tensile Strength: Yield (Proof), MPa 190
110 to 180

Thermal Properties

Latent Heat of Fusion, J/g 290
480
Maximum Temperature: Mechanical, °C 1000
170
Melting Completion (Liquidus), °C 1410
600
Melting Onset (Solidus), °C 1370
540
Specific Heat Capacity, J/kg-K 480
880
Thermal Expansion, µm/m-K 16
22

Otherwise Unclassified Properties

Base Metal Price, % relative 22
10
Density, g/cm3 7.9
2.9
Embodied Carbon, kg CO2/kg material 4.1
7.7
Embodied Energy, MJ/kg 59
140
Embodied Water, L/kg 170
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
3.3 to 3.9
Resilience: Unit (Modulus of Resilience), kJ/m3 96
88 to 220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 19
18 to 24
Strength to Weight: Bending, points 19
25 to 30
Thermal Shock Resistance, points 12
8.6 to 11

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
85.8 to 91.5
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 55.7 to 62.7
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 19 to 21
0 to 0.35
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
5.5 to 6.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5