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R60705 Alloy vs. ASTM Grade HD Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while ASTM grade HD steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is R60705 alloy and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 18
9.1
Fatigue Strength, MPa 290
140
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
270

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 270
490
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 6.3
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
44
Resilience: Unit (Modulus of Resilience), kJ/m3 950
180
Stiffness to Weight: Axial, points 8.1
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 9.5
4.3
Thermal Shock Resistance, points 63
19

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.5
Chromium (Cr), % 0 to 0.2
26 to 30
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
58.4 to 70
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
4.0 to 7.0
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
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Zirconium (Zr), % 91 to 98
0