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ASTM Grade HT Steel vs. 333.0 Aluminum

ASTM grade HT steel belongs to the iron alloys classification, while 333.0 aluminum belongs to the aluminum alloys. There are 30 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 ASTM grade HT steel and the bottom bar is 333.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
90 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 4.6
1.0 to 2.0
Fatigue Strength, MPa 130
83 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
28
Tensile Strength: Ultimate (UTS), MPa 500
230 to 280
Tensile Strength: Yield (Proof), MPa 270
130 to 210

Thermal Properties

Latent Heat of Fusion, J/g 310
520
Maximum Temperature: Mechanical, °C 1010
170
Melting Completion (Liquidus), °C 1390
590
Melting Onset (Solidus), °C 1340
530
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 12
100 to 140
Thermal Expansion, µm/m-K 15
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
26 to 35
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
83 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 8.0
2.8
Embodied Carbon, kg CO2/kg material 5.4
7.6
Embodied Energy, MJ/kg 76
140
Embodied Water, L/kg 190
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
2.1 to 4.6
Resilience: Unit (Modulus of Resilience), kJ/m3 180
120 to 290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
49
Strength to Weight: Axial, points 18
22 to 27
Strength to Weight: Bending, points 18
29 to 34
Thermal Diffusivity, mm2/s 3.2
42 to 57
Thermal Shock Resistance, points 12
11 to 13

Alloy Composition

Aluminum (Al), % 0
81.8 to 89
Carbon (C), % 0.35 to 0.75
0
Chromium (Cr), % 15 to 19
0
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 38.2 to 51.7
0 to 1.0
Magnesium (Mg), % 0
0.050 to 0.5
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 33 to 37
0 to 0.5
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.5
8.0 to 10
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5