R04295 Alloy vs. EN 1.1122 Steel

R04295 alloy belongs to the otherwise unclassified metals classification, while EN 1.1122 steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is R04295 alloy and the bottom bar is EN 1.1122 steel.

UNS R04295 Niobium-Hafnium Alloy EN 1.1122 (C10E2C) Non-Alloy Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		100
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		22
Elongation at Break, %		12 to 21

Poisson's Ratio		0.38
Poisson's Ratio		0.29

Shear Modulus, GPa		37
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		410
Tensile Strength: Ultimate (UTS), MPa		340 to 460

Tensile Strength: Yield (Proof), MPa		300
Tensile Strength: Yield (Proof), MPa		240 to 370

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		250

Specific Heat Capacity, J/kg-K		260
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		7.2
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		9.0
Density, g/cm³		7.9

Embodied Water, L/kg		950
Embodied Water, L/kg		46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		84
Resilience: Ultimate (Unit Rupture Work), MJ/m³		36 to 89

Resilience: Unit (Modulus of Resilience), kJ/m³		430
Resilience: Unit (Modulus of Resilience), kJ/m³		160 to 360

Stiffness to Weight: Axial, points		6.3
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		17
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		13
Strength to Weight: Axial, points		12 to 16

Strength to Weight: Bending, points		14
Strength to Weight: Bending, points		14 to 17

Thermal Shock Resistance, points		40
Thermal Shock Resistance, points		11 to 15

Alloy Composition

Carbon (C), %		0 to 0.015
Carbon (C), %		0.080 to 0.12

Copper (Cu), %		0
Copper (Cu), %		0 to 0.25

Hafnium (Hf), %		9.0 to 11
Hafnium (Hf), %		0

Hydrogen (H), %		0 to 0.0015
Hydrogen (H), %		0

Iron (Fe), %		0
Iron (Fe), %		98.7 to 99.62

Manganese (Mn), %		0
Manganese (Mn), %		0.3 to 0.6

Niobium (Nb), %		85.9 to 90.3
Niobium (Nb), %		0

Nitrogen (N), %		0 to 0.010
Nitrogen (N), %		0

Oxygen (O), %		0 to 0.025
Oxygen (O), %		0

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.025

Silicon (Si), %		0
Silicon (Si), %		0 to 0.3

Sulfur (S), %		0
Sulfur (S), %		0 to 0.025

Tantalum (Ta), %		0 to 0.5
Tantalum (Ta), %		0

Titanium (Ti), %		0.7 to 1.3
Titanium (Ti), %		0

Tungsten (W), %		0 to 0.5
Tungsten (W), %		0

Zirconium (Zr), %		0 to 0.7
Zirconium (Zr), %		0