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ASTM F15 Fe-Ni-Co vs. ASTM A387 Grade 2 Steel

Both ASTM F15 Fe-Ni-Co and ASTM A387 grade 2 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 (10, 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 ASTM A387 grade 2 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
470 to 550

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 17
45
Thermal Expansion, µm/m-K 6.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 49
2.6
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 5.2
1.6
Embodied Energy, MJ/kg 71
20
Embodied Water, L/kg 190
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 17 to 29
16 to 20
Strength to Weight: Bending, points 17 to 24
17 to 19
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 32 to 55
14 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
0.050 to 0.21
Chromium (Cr), % 0 to 0.2
0.5 to 0.8
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 50.3 to 56
97.1 to 98.3
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.55 to 0.8
Molybdenum (Mo), % 0 to 0.2
0.45 to 0.6
Nickel (Ni), % 28 to 30
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0.15 to 0.4
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0

Comparable Variants