SAE-AISI F1 Steel vs. Type 1 Niobium

SAE-AISI F1 steel belongs to the iron alloys classification, while Type 1 niobium belongs to the otherwise unclassified metals. There are 16 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 SAE-AISI F1 steel and the bottom bar is Type 1 niobium.

SAE-AISI F1 (T60601) Low-Alloy Tool Steel Type 1 (Unalloyed Reactor Grade, R04200) Niobium

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.29
Poisson's Ratio		0.4

Shear Modulus, GPa		72
Shear Modulus, GPa		38

Tensile Strength: Ultimate (UTS), MPa		620 to 2320
Tensile Strength: Ultimate (UTS), MPa		140

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		320

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		270

Thermal Conductivity, W/m-K		45
Thermal Conductivity, W/m-K		52

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		7.3

Otherwise Unclassified Properties

Density, g/cm³		7.9
Density, g/cm³		8.6

Embodied Water, L/kg		46
Embodied Water, L/kg		160

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		6.8

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		22 to 82
Strength to Weight: Axial, points		4.6

Strength to Weight: Bending, points		20 to 49
Strength to Weight: Bending, points		7.1

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		23

Thermal Shock Resistance, points		19 to 70
Thermal Shock Resistance, points		13

Alloy Composition

Carbon (C), %		1.0 to 1.3
Carbon (C), %		0 to 0.010

Hafnium (Hf), %		0
Hafnium (Hf), %		0 to 0.020

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

Iron (Fe), %		95.9 to 98
Iron (Fe), %		0 to 0.0050

Manganese (Mn), %		0 to 0.5
Manganese (Mn), %		0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0 to 0.010

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.0050

Niobium (Nb), %		0
Niobium (Nb), %		99.7 to 100

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

Oxygen (O), %		0
Oxygen (O), %		0 to 0.015

Phosphorus (P), %		0 to 0.030
Phosphorus (P), %		0

Silicon (Si), %		0.1 to 0.5
Silicon (Si), %		0 to 0.0050

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0

Tantalum (Ta), %		0
Tantalum (Ta), %		0 to 0.1

Titanium (Ti), %		0
Titanium (Ti), %		0 to 0.020

Tungsten (W), %		1.0 to 1.8
Tungsten (W), %		0 to 0.030

Zirconium (Zr), %		0
Zirconium (Zr), %		0 to 0.020