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3004 Aluminum vs. AISI 316Ti Stainless Steel

3004 aluminum belongs to the aluminum alloys classification, while AISI 316Ti stainless steel belongs to the iron alloys. There are 32 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 3004 aluminum and the bottom bar is AISI 316Ti stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 83
190
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 1.1 to 19
41
Fatigue Strength, MPa 55 to 120
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
82
Shear Strength, MPa 100 to 180
400
Tensile Strength: Ultimate (UTS), MPa 170 to 310
580
Tensile Strength: Yield (Proof), MPa 68 to 270
230

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 180
940
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 630
1380
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
15
Thermal Expansion, µm/m-K 24
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Calomel Potential, mV -750
-20
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.3
4.0
Embodied Energy, MJ/kg 150
55
Embodied Water, L/kg 1180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 27
190
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 540
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 18 to 31
20
Strength to Weight: Bending, points 25 to 37
20
Thermal Diffusivity, mm2/s 65
4.0
Thermal Shock Resistance, points 7.6 to 13
13

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.7
61.3 to 72
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 1.0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.7
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0