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B535.0 Aluminum vs. ASTM A225 Steel

B535.0 aluminum belongs to the aluminum alloys classification, while ASTM A225 steel belongs to the iron alloys. 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 B535.0 aluminum and the bottom bar is ASTM A225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
190 to 250
Elastic (Young's, Tensile) Modulus, GPa 66
190
Elongation at Break, % 10
21 to 23
Fatigue Strength, MPa 62
330 to 390
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
73
Shear Strength, MPa 210
390 to 520
Tensile Strength: Ultimate (UTS), MPa 260
620 to 830
Tensile Strength: Yield (Proof), MPa 130
460 to 550

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 96
52
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 82
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.4
1.8
Embodied Energy, MJ/kg 160
24 to 25
Embodied Water, L/kg 1180
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
120 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 130
580 to 820
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 28
22 to 29
Strength to Weight: Bending, points 35
21 to 25
Thermal Diffusivity, mm2/s 40
14
Thermal Shock Resistance, points 11
18 to 24