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R05240 Alloy vs. ACI-ASTM CK3MCuN Steel

R05240 alloy belongs to the otherwise unclassified metals classification, while ACI-ASTM CK3MCuN steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is R05240 alloy and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
200
Elongation at Break, % 25
39
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 57
80
Tensile Strength: Ultimate (UTS), MPa 270
620
Tensile Strength: Yield (Proof), MPa 170
290

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Specific Heat Capacity, J/kg-K 190
460
Thermal Expansion, µm/m-K 6.8
16

Otherwise Unclassified Properties

Density, g/cm3 14
8.0
Embodied Water, L/kg 460
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
200
Resilience: Unit (Modulus of Resilience), kJ/m3 90
210
Stiffness to Weight: Axial, points 6.3
14
Stiffness to Weight: Bending, points 13
24
Strength to Weight: Axial, points 5.4
21
Strength to Weight: Bending, points 6.8
20
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.025
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
49.5 to 56.3
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0 to 0.020
6.0 to 7.0
Nickel (Ni), % 0 to 0.010
17.5 to 19.5
Niobium (Nb), % 35 to 42
0
Nitrogen (N), % 0 to 0.010
0.18 to 0.24
Oxygen (O), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 57.9 to 65
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0