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ASTM F15 Fe-Ni-Co vs. Grade TDSiCr Steel

Both ASTM F15 Fe-Ni-Co and grade TDSiCr steel are iron alloys. They have 54% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM F15 Fe-Ni-Co and the bottom bar is grade TDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 520 to 880
1950

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 17
46
Thermal Expansion, µm/m-K 6.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 49
2.2
Density, g/cm3 8.3
7.7
Embodied Carbon, kg CO2/kg material 5.2
1.5
Embodied Energy, MJ/kg 71
20
Embodied Water, L/kg 190
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 17 to 29
70
Strength to Weight: Bending, points 17 to 24
45
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 32 to 55
58

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
0.5 to 0.6
Chromium (Cr), % 0 to 0.2
0.5 to 0.8
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 50.3 to 56
96.6 to 97.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 28 to 30
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
1.2 to 1.6
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0