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ASTM F15 Fe-Ni-Co vs. SAE-AISI D7 Steel

Both ASTM F15 Fe-Ni-Co and SAE-AISI D7 steel are iron alloys. They have 54% of their average alloy composition in common. There are 21 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 SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 520 to 880
800 to 2120

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
27
Thermal Expansion, µm/m-K 6.0
11

Otherwise Unclassified Properties

Base Metal Price, % relative 49
10
Density, g/cm3 8.3
7.6
Embodied Carbon, kg CO2/kg material 5.2
11
Embodied Energy, MJ/kg 71
180
Embodied Water, L/kg 190
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 17 to 29
29 to 78
Strength to Weight: Bending, points 17 to 24
25 to 48
Thermal Diffusivity, mm2/s 4.5
7.4
Thermal Shock Resistance, points 32 to 55
27 to 72

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
2.2 to 2.5
Chromium (Cr), % 0 to 0.2
11.5 to 13.5
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 50.3 to 56
76.6 to 81.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 0.6
Molybdenum (Mo), % 0 to 0.2
0.7 to 1.2
Nickel (Ni), % 28 to 30
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Vanadium (V), % 0
3.8 to 4.4
Zirconium (Zr), % 0 to 0.1
0

Comparable Variants