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R60705 Alloy vs. AISI 439 Stainless Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while AISI 439 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is R60705 alloy and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 18
23
Fatigue Strength, MPa 290
170
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 37
77
Tensile Strength: Ultimate (UTS), MPa 540
490
Tensile Strength: Yield (Proof), MPa 430
250

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 17
25
Thermal Expansion, µm/m-K 6.3
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
95
Resilience: Unit (Modulus of Resilience), kJ/m3 950
160
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
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0 to 0.2
17 to 19
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
77.1 to 82.8
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
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 0.030
Titanium (Ti), % 0
0.2 to 1.1
Zirconium (Zr), % 91 to 98
0