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ASTM A225 Steel vs. 360.0 Aluminum

ASTM A225 steel belongs to the iron alloys classification, while 360.0 aluminum belongs to the aluminum 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 ASTM A225 steel and the bottom bar is 360.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 250
75
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 21 to 23
2.5
Fatigue Strength, MPa 330 to 390
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 390 to 520
190
Tensile Strength: Ultimate (UTS), MPa 620 to 830
300
Tensile Strength: Yield (Proof), MPa 460 to 550
170

Thermal Properties

Latent Heat of Fusion, J/g 250
530
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 52
130
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
34
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.8
7.8
Embodied Energy, MJ/kg 24 to 25
140
Embodied Water, L/kg 48
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 170
6.4
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 820
200
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 22 to 29
32
Strength to Weight: Bending, points 21 to 25
38
Thermal Diffusivity, mm2/s 14
55
Thermal Shock Resistance, points 18 to 24
14