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319.0 Aluminum vs. ASTM A27 Cast Steel

319.0 aluminum belongs to the aluminum alloys classification, while ASTM A27 cast steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 319.0 aluminum and the bottom bar is ASTM A27 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.8 to 2.0
25 to 27
Fatigue Strength, MPa 76 to 80
170 to 230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 190 to 240
460 to 550
Tensile Strength: Yield (Proof), MPa 110 to 180
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 480
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 110
52
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.0 to 7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 84
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.4
Embodied Energy, MJ/kg 140
18
Embodied Water, L/kg 1080
45 to 46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3 to 3.9
96 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 88 to 220
140 to 260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 18 to 24
16 to 20
Strength to Weight: Bending, points 25 to 30
17 to 19
Thermal Diffusivity, mm2/s 44
14
Thermal Shock Resistance, points 8.6 to 11
15 to 18

Comparable Variants