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EN 1.4310 Stainless Steel vs. 3004 Aluminum

EN 1.4310 stainless steel belongs to the iron alloys classification, while 3004 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 EN 1.4310 stainless steel and the bottom bar is 3004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
45 to 83
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 14 to 45
1.1 to 19
Fatigue Strength, MPa 240 to 330
55 to 120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 510 to 550
100 to 180
Tensile Strength: Ultimate (UTS), MPa 730 to 900
170 to 310
Tensile Strength: Yield (Proof), MPa 260 to 570
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 910
180
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1380
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
160
Thermal Expansion, µm/m-K 18
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
140

Otherwise Unclassified Properties

Base Metal Price, % relative 14
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 2.9
8.3
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 140
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
3.2 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
33 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 26 to 32
18 to 31
Strength to Weight: Bending, points 23 to 27
25 to 37
Thermal Diffusivity, mm2/s 4.0
65
Thermal Shock Resistance, points 15 to 18
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
95.6 to 98.2
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 16 to 19
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 66.4 to 78
0 to 0.7
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0 to 2.0
1.0 to 1.5
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 6.0 to 9.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 2.0
0 to 0.3
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15