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R60705 Alloy vs. S38815 Stainless Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while S38815 stainless steel belongs to the iron alloys. There are 19 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 R60705 alloy and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 18
34
Fatigue Strength, MPa 290
230
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 37
74
Tensile Strength: Ultimate (UTS), MPa 540
610
Tensile Strength: Yield (Proof), MPa 430
290

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Specific Heat Capacity, J/kg-K 270
500
Thermal Expansion, µm/m-K 6.3
15

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.5
Embodied Water, L/kg 450
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
170
Resilience: Unit (Modulus of Resilience), kJ/m3 950
220
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
22
Strength to Weight: Bending, points 22
21
Thermal Shock Resistance, points 63
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0 to 0.2
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
56.1 to 67
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
13 to 17
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 0.040
Silicon (Si), % 0
5.5 to 6.5
Sulfur (S), % 0
0 to 0.020
Zirconium (Zr), % 91 to 98
0