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ASTM A387 Grade 22 Steel vs. B535.0 Aluminum

ASTM A387 grade 22 steel belongs to the iron alloys classification, while B535.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 ASTM A387 grade 22 steel and the bottom bar is B535.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
65
Elastic (Young's, Tensile) Modulus, GPa 190
66
Elongation at Break, % 21
10
Fatigue Strength, MPa 160 to 240
62
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 74
25
Shear Strength, MPa 300 to 380
210
Tensile Strength: Ultimate (UTS), MPa 480 to 600
260
Tensile Strength: Yield (Proof), MPa 230 to 350
130

Thermal Properties

Latent Heat of Fusion, J/g 260
390
Maximum Temperature: Mechanical, °C 460
170
Melting Completion (Liquidus), °C 1470
630
Melting Onset (Solidus), °C 1430
550
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 40
96
Thermal Expansion, µm/m-K 13
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
24
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
82

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 1.7
9.4
Embodied Energy, MJ/kg 23
160
Embodied Water, L/kg 58
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
22
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 17 to 21
28
Strength to Weight: Bending, points 17 to 20
35
Thermal Diffusivity, mm2/s 11
40
Thermal Shock Resistance, points 14 to 17
11

Alloy Composition

Aluminum (Al), % 0
91.7 to 93.4
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 2.0 to 2.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 95.1 to 96.8
0 to 0.15
Magnesium (Mg), % 0
6.5 to 7.5
Manganese (Mn), % 0.3 to 0.6
0 to 0.050
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0 to 0.15
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0.1 to 0.25
Residuals, % 0
0 to 0.15