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R05240 Alloy vs. SAE-AISI M6 Steel

R05240 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI M6 steel belongs to the iron alloys. There are 14 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is R05240 alloy and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
200
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 57
77
Tensile Strength: Ultimate (UTS), MPa 270
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Specific Heat Capacity, J/kg-K 190
440
Thermal Expansion, µm/m-K 6.8
12

Otherwise Unclassified Properties

Density, g/cm3 14
8.4
Embodied Water, L/kg 460
160

Common Calculations

Stiffness to Weight: Axial, points 6.3
13
Stiffness to Weight: Bending, points 13
23
Strength to Weight: Axial, points 5.4
28 to 73
Strength to Weight: Bending, points 6.8
24 to 45
Thermal Shock Resistance, points 18
26 to 68

Alloy Composition

Carbon (C), % 0 to 0.010
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
68.8 to 74.6
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0 to 0.020
4.5 to 5.5
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 35 to 42
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.0050
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 57.9 to 65
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7