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SAE-AISI O2 Steel vs. R60705 Alloy

SAE-AISI O2 steel belongs to the iron alloys classification, while R60705 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 O2 steel and the bottom bar is R60705 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 72
37
Tensile Strength: Ultimate (UTS), MPa 640 to 2050
540

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 43
17
Thermal Expansion, µm/m-K 11
6.3

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.7
Embodied Water, L/kg 50
450

Common Calculations

Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 23 to 73
22
Strength to Weight: Bending, points 21 to 46
22
Thermal Diffusivity, mm2/s 12
9.5
Thermal Shock Resistance, points 22 to 70
63

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.050
Chromium (Cr), % 0 to 0.5
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), % 95 to 97.8
0 to 0.2
Manganese (Mn), % 1.4 to 1.8
0
Molybdenum (Mo), % 0 to 0.3
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 0.18
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0 to 0.3
0
Zirconium (Zr), % 0
91 to 98