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R60706 Alloy vs. ASTM Grade HI Steel

R60706 alloy belongs to the otherwise unclassified metals classification, while ASTM grade HI steel belongs to the iron alloys. There are 20 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 R60706 alloy and the bottom bar is ASTM grade HI steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 16
11
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 37
79
Tensile Strength: Ultimate (UTS), MPa 580
550
Tensile Strength: Yield (Proof), MPa 390
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
15
Thermal Expansion, µm/m-K 6.3
17

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
52
Resilience: Unit (Modulus of Resilience), kJ/m3 760
180
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 9.5
3.9
Thermal Shock Resistance, points 67
12

Alloy Composition

Carbon (C), % 0 to 0.050
0.2 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
46.9 to 59.8
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
14 to 18
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.16
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