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1235 Aluminum vs. ASTM Grade HC Steel

1235 aluminum belongs to the aluminum alloys classification, while ASTM grade HC steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 1235 aluminum and the bottom bar is ASTM grade HC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 28 to 34
6.0
Fatigue Strength, MPa 23 to 58
96
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 80 to 84
430
Tensile Strength: Yield (Proof), MPa 23 to 57
200

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 640
1370
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 230
17
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
14
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 1190
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
21
Resilience: Unit (Modulus of Resilience), kJ/m3 3.8 to 24
95
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
26
Strength to Weight: Axial, points 8.2 to 8.6
16
Strength to Weight: Bending, points 15 to 16
16
Thermal Diffusivity, mm2/s 93
4.5
Thermal Shock Resistance, points 3.6 to 3.7
14

Alloy Composition

Aluminum (Al), % 99.35 to 100
0
Carbon (C), % 0
0 to 0.5
Chromium (Cr), % 0
26 to 30
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.65
61.9 to 74
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 4.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.65
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0