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705.0 Aluminum vs. AISI 310HCb Stainless Steel

705.0 aluminum belongs to the aluminum alloys classification, while AISI 310HCb stainless steel belongs to the iron alloys. There are 30 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 705.0 aluminum and the bottom bar is AISI 310HCb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62 to 65
190
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 8.4 to 10
46
Fatigue Strength, MPa 63 to 98
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 240 to 260
590
Tensile Strength: Yield (Proof), MPa 130
230

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 610
1370
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
28
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.4
4.8
Embodied Energy, MJ/kg 150
69
Embodied Water, L/kg 1170
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 20
210
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 130
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 24 to 26
21
Strength to Weight: Bending, points 31 to 32
20
Thermal Diffusivity, mm2/s 55
3.9
Thermal Shock Resistance, points 11
13

Alloy Composition

Aluminum (Al), % 92.3 to 98.6
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0 to 0.4
24 to 26
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.8
48 to 57
Magnesium (Mg), % 1.4 to 1.8
0
Manganese (Mn), % 0 to 0.6
0 to 2.0
Nickel (Ni), % 0
19 to 22
Niobium (Nb), % 0
0 to 1.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 3.3
0
Residuals, % 0 to 0.15
0