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R60705 Alloy vs. S40977 Stainless Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while S40977 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 S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 18
21
Fatigue Strength, MPa 290
200
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 37
76
Tensile Strength: Ultimate (UTS), MPa 540
510
Tensile Strength: Yield (Proof), MPa 430
310

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
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
92
Resilience: Unit (Modulus of Resilience), kJ/m3 950
250
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 9.5
6.7
Thermal Shock Resistance, points 63
18

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0 to 0.2
10.5 to 12.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
83.9 to 89.2
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
0.3 to 1.0
Niobium (Nb), % 2.0 to 3.0
0
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 0.015
Zirconium (Zr), % 91 to 98
0