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ASTM F15 Fe-Ni-Co vs. AWS ENiCrMo-3

ASTM F15 Fe-Ni-Co belongs to the iron alloys classification, while AWS ENiCrMo-3 belongs to the nickel alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. 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 AWS ENiCrMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 520 to 880
870

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Melting Completion (Liquidus), °C 1410
1480
Melting Onset (Solidus), °C 1450
1430
Specific Heat Capacity, J/kg-K 460
440
Thermal Conductivity, W/m-K 17
11
Thermal Expansion, µm/m-K 6.0
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 49
80
Density, g/cm3 8.3
8.6
Embodied Carbon, kg CO2/kg material 5.2
14
Embodied Energy, MJ/kg 71
190
Embodied Water, L/kg 190
290

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 17 to 29
28
Strength to Weight: Bending, points 17 to 24
24
Thermal Diffusivity, mm2/s 4.5
2.8
Thermal Shock Resistance, points 32 to 55
25

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.040
0 to 0.1
Chromium (Cr), % 0 to 0.2
20 to 23
Cobalt (Co), % 16 to 18
0 to 0.12
Copper (Cu), % 0 to 0.2
0 to 0.5
Iron (Fe), % 50.3 to 56
0 to 7.0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0 to 0.2
8.0 to 10
Nickel (Ni), % 28 to 30
55 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.2
0 to 0.75
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0
Zirconium (Zr), % 0 to 0.1
0
Residuals, % 0
0 to 0.5