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SAE-AISI M50 Steel vs. R60706 Alloy

SAE-AISI M50 steel belongs to the iron alloys classification, while R60706 alloy belongs to the otherwise unclassified metals. There are 16 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 SAE-AISI M50 steel and the bottom bar is R60706 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 75
37
Tensile Strength: Ultimate (UTS), MPa 720 to 2250
580

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 35
17
Thermal Expansion, µm/m-K 13
6.3

Otherwise Unclassified Properties

Density, g/cm3 7.9
6.7
Embodied Water, L/kg 83
450

Common Calculations

Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26 to 80
24
Strength to Weight: Bending, points 23 to 49
23
Thermal Diffusivity, mm2/s 9.7
9.5
Thermal Shock Resistance, points 21 to 66
67

Alloy Composition

Carbon (C), % 0.78 to 0.88
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
0 to 0.2
Copper (Cu), % 0 to 0.25
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 87 to 90.4
0 to 0.2
Manganese (Mn), % 0.15 to 0.45
0
Molybdenum (Mo), % 3.9 to 4.8
0
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0
2.0 to 3.0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.16
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.8 to 1.3
0
Zirconium (Zr), % 0
91 to 98