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R05255 Alloy vs. Chromium 33

Both R05255 alloy and chromium 33 are otherwise unclassified metals. Both are furnished in the annealed condition. There are 18 material properties with values for both materials. Properties with values for just one material (5, 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 R05255 alloy and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
45
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 70
81
Tensile Strength: Ultimate (UTS), MPa 540
850
Tensile Strength: Yield (Proof), MPa 450
430

Thermal Properties

Latent Heat of Fusion, J/g 140
320
Specific Heat Capacity, J/kg-K 140
480
Thermal Expansion, µm/m-K 6.6
14

Otherwise Unclassified Properties

Density, g/cm3 17
7.9
Embodied Water, L/kg 630
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
320
Resilience: Unit (Modulus of Resilience), kJ/m3 530
450
Stiffness to Weight: Axial, points 6.3
14
Stiffness to Weight: Bending, points 11
25
Strength to Weight: Axial, points 9.1
30
Strength to Weight: Bending, points 8.9
25
Thermal Shock Resistance, points 31
21

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.015
Chromium (Cr), % 0
31 to 35
Copper (Cu), % 0
0.3 to 1.2
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
25.7 to 37.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0 to 0.020
0.5 to 2.0
Nickel (Ni), % 0 to 0.010
30 to 33
Niobium (Nb), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.010
0.35 to 0.6
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.0050
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 95.9 to 98
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 2.0 to 3.5
0