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ASTM A372 Grade F Steel vs. 1235 Aluminum

ASTM A372 grade F steel belongs to the iron alloys classification, while 1235 aluminum belongs to the aluminum alloys. There are 30 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 A372 grade F steel and the bottom bar is 1235 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 20 to 22
28 to 34
Fatigue Strength, MPa 310 to 380
23 to 58
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 410 to 570
52 to 56
Tensile Strength: Ultimate (UTS), MPa 650 to 910
80 to 84
Tensile Strength: Yield (Proof), MPa 430 to 550
23 to 57

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 44
230
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
60
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
200

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.5
8.3
Embodied Energy, MJ/kg 20
160
Embodied Water, L/kg 51
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 160
17 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 810
3.8 to 24
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 23 to 32
8.2 to 8.6
Strength to Weight: Bending, points 21 to 27
15 to 16
Thermal Diffusivity, mm2/s 12
93
Thermal Shock Resistance, points 19 to 27
3.6 to 3.7

Alloy Composition

Aluminum (Al), % 0
99.35 to 100
Carbon (C), % 0.3 to 0.4
0
Chromium (Cr), % 0.8 to 1.2
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 96.8 to 97.9
0 to 0.65
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0.7 to 1.0
0 to 0.050
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0.15 to 0.35
0 to 0.65
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.1

Comparable Variants