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R04295 Alloy vs. ASTM Grade HD Steel

R04295 alloy belongs to the otherwise unclassified metals classification, while ASTM grade HD steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is R04295 alloy and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 22
9.1
Poisson's Ratio 0.38
0.27
Shear Modulus, GPa 37
80
Tensile Strength: Ultimate (UTS), MPa 410
590
Tensile Strength: Yield (Proof), MPa 300
270

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Specific Heat Capacity, J/kg-K 260
490
Thermal Expansion, µm/m-K 7.2
11

Otherwise Unclassified Properties

Density, g/cm3 9.0
7.7
Embodied Water, L/kg 950
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84
44
Resilience: Unit (Modulus of Resilience), kJ/m3 430
180
Stiffness to Weight: Axial, points 6.3
15
Stiffness to Weight: Bending, points 17
26
Strength to Weight: Axial, points 13
21
Strength to Weight: Bending, points 14
20
Thermal Shock Resistance, points 40
19

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.5
Chromium (Cr), % 0
26 to 30
Hafnium (Hf), % 9.0 to 11
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0
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), % 85.9 to 90.3
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.025
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 0.7 to 1.3
0
Tungsten (W), % 0 to 0.5
0
Zirconium (Zr), % 0 to 0.7
0