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R60705 Alloy vs. S44625 Stainless Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while S44625 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is R60705 alloy and the bottom bar is S44625 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 18
22
Fatigue Strength, MPa 290
240
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 37
80
Tensile Strength: Ultimate (UTS), MPa 540
590
Tensile Strength: Yield (Proof), MPa 430
360

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 17
17
Thermal Expansion, µm/m-K 6.3
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 950
310
Stiffness to Weight: Axial, points 8.1
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 9.5
4.6
Thermal Shock Resistance, points 63
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.010
Chromium (Cr), % 0 to 0.2
25 to 27.5
Copper (Cu), % 0
0 to 0.2
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
69.4 to 74.3
Manganese (Mn), % 0
0 to 0.4
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0 to 0.015
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.020
Zirconium (Zr), % 91 to 98
0