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B443.0 Aluminum vs. AISI 347H Stainless Steel

B443.0 aluminum belongs to the aluminum alloys classification, while AISI 347H stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 B443.0 aluminum and the bottom bar is AISI 347H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 43
170
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 4.9
39
Fatigue Strength, MPa 55
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 110
400
Tensile Strength: Ultimate (UTS), MPa 150
580
Tensile Strength: Yield (Proof), MPa 50
230

Thermal Properties

Latent Heat of Fusion, J/g 470
290
Maximum Temperature: Mechanical, °C 170
940
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 600
1390
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 150
16
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.0
3.6
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1130
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
180
Resilience: Unit (Modulus of Resilience), kJ/m3 18
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 15
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 61
4.2
Thermal Shock Resistance, points 6.8
13

Alloy Composition

Aluminum (Al), % 91.9 to 95.5
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.8
64.1 to 74
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Nickel (Ni), % 0
9.0 to 13
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 4.5 to 6.0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0