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ASTM F15 Fe-Ni-Co vs. SAE-AISI O7 Steel

Both ASTM F15 Fe-Ni-Co and SAE-AISI O7 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 (2, 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 O7 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
73
Tensile Strength: Ultimate (UTS), MPa 520 to 880
680 to 2110

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1410
1480
Melting Onset (Solidus), °C 1450
1430
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 17
41
Thermal Expansion, µm/m-K 6.0
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 49
6.0
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 5.2
2.3
Embodied Energy, MJ/kg 71
33
Embodied Water, L/kg 190
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 17 to 29
24 to 74
Strength to Weight: Bending, points 17 to 24
22 to 46
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 32 to 55
23 to 70

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
1.1 to 1.3
Chromium (Cr), % 0 to 0.2
0.35 to 0.85
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 50.3 to 56
92.9 to 97.6
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
0 to 0.3
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
Tungsten (W), % 0
1.0 to 2.0
Vanadium (V), % 0
0 to 0.4
Zirconium (Zr), % 0 to 0.1
0

Comparable Variants