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R60705 Alloy vs. SAE-AISI 8115 Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI 8115 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R60705 alloy and the bottom bar is SAE-AISI 8115 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 18
15
Fatigue Strength, MPa 290
320
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 37
73
Tensile Strength: Ultimate (UTS), MPa 540
610
Tensile Strength: Yield (Proof), MPa 430
500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 17
43
Thermal Expansion, µm/m-K 6.3
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
86
Resilience: Unit (Modulus of Resilience), kJ/m3 950
660
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 9.5
12
Thermal Shock Resistance, points 63
19

Alloy Composition

Carbon (C), % 0 to 0.050
0.13 to 0.18
Chromium (Cr), % 0 to 0.2
0.3 to 0.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
97.4 to 98.4
Manganese (Mn), % 0
0.7 to 0.9
Molybdenum (Mo), % 0
0.080 to 0.15
Nickel (Ni), % 0
0.2 to 0.4
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Zirconium (Zr), % 91 to 98
0