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7049 Aluminum vs. EN 1.4962 Stainless Steel

7049 aluminum belongs to the aluminum alloys classification, while EN 1.4962 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 7049 aluminum and the bottom bar is EN 1.4962 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 6.2 to 7.0
22 to 34
Fatigue Strength, MPa 160 to 170
210 to 330
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 300 to 310
420 to 440
Tensile Strength: Ultimate (UTS), MPa 510 to 530
630 to 690
Tensile Strength: Yield (Proof), MPa 420 to 450
260 to 490

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Mechanical, °C 180
910
Melting Completion (Liquidus), °C 640
1480
Melting Onset (Solidus), °C 480
1440
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 130
14
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
23
Density, g/cm3 3.1
8.1
Embodied Carbon, kg CO2/kg material 8.1
4.1
Embodied Energy, MJ/kg 140
59
Embodied Water, L/kg 1110
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
140 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
170 to 610
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 46 to 47
21 to 24
Strength to Weight: Bending, points 46 to 47
20 to 21
Thermal Diffusivity, mm2/s 51
3.7
Thermal Shock Resistance, points 22 to 23
14 to 16

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Boron (B), % 0
0.0015 to 0.0060
Carbon (C), % 0
0.070 to 0.15
Chromium (Cr), % 0.1 to 0.22
15.5 to 17.5
Copper (Cu), % 1.2 to 1.9
0
Iron (Fe), % 0 to 0.35
62.1 to 69
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0 to 1.5
Nickel (Ni), % 0
12.5 to 14.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.25
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0.4 to 0.7
Tungsten (W), % 0
2.5 to 3.0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0 to 0.15
0