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R60705 Alloy vs. S40930 Stainless Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while S40930 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is R60705 alloy and the bottom bar is S40930 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 18
23
Fatigue Strength, MPa 290
130
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 37
75
Tensile Strength: Ultimate (UTS), MPa 540
430
Tensile Strength: Yield (Proof), MPa 430
190

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 17
25
Thermal Expansion, µm/m-K 6.3
10

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
80
Resilience: Unit (Modulus of Resilience), kJ/m3 950
94
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 9.5
6.7
Thermal Shock Resistance, points 63
16

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0 to 0.2
10.5 to 11.7
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
84.7 to 89.4
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 2.0 to 3.0
0.080 to 0.75
Nitrogen (N), % 0 to 0.025
0 to 0.030
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0.050 to 0.2
Zirconium (Zr), % 91 to 98
0