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R30556 Alloy vs. 850.0 Aluminum

R30556 alloy belongs to the iron alloys classification, while 850.0 aluminum belongs to the aluminum alloys. There are 30 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 R30556 alloy and the bottom bar is 850.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 45
7.9
Fatigue Strength, MPa 320
59
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 81
26
Shear Strength, MPa 550
100
Tensile Strength: Ultimate (UTS), MPa 780
140
Tensile Strength: Yield (Proof), MPa 350
76

Thermal Properties

Latent Heat of Fusion, J/g 300
380
Maximum Temperature: Mechanical, °C 1100
190
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1330
370
Specific Heat Capacity, J/kg-K 450
850
Thermal Conductivity, W/m-K 11
180
Thermal Expansion, µm/m-K 15
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
47
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
140

Otherwise Unclassified Properties

Base Metal Price, % relative 70
14
Density, g/cm3 8.4
3.1
Embodied Carbon, kg CO2/kg material 8.7
8.5
Embodied Energy, MJ/kg 130
160
Embodied Water, L/kg 300
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
9.1
Resilience: Unit (Modulus of Resilience), kJ/m3 290
42
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 23
44
Strength to Weight: Axial, points 26
12
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 2.9
69
Thermal Shock Resistance, points 18
6.1

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
88.3 to 93.1
Boron (B), % 0 to 0.020
0
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 21 to 23
0
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0.7 to 1.3
Iron (Fe), % 20.4 to 38.2
0 to 0.7
Lanthanum (La), % 0.0050 to 0.1
0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.5 to 2.0
0 to 0.1
Molybdenum (Mo), % 2.5 to 4.0
0
Nickel (Ni), % 19 to 22.5
0.7 to 1.3
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0.2 to 0.8
0 to 0.7
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0.3 to 1.3
0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0
Residuals, % 0
0 to 0.3