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ASTM F15 Fe-Ni-Co vs. EN 1.4945 Stainless Steel

Both ASTM F15 Fe-Ni-Co and EN 1.4945 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 EN 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 520 to 880
640 to 740

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1410
1490
Melting Onset (Solidus), °C 1450
1440
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 6.0
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 49
30
Density, g/cm3 8.3
8.1
Embodied Carbon, kg CO2/kg material 5.2
5.0
Embodied Energy, MJ/kg 71
73
Embodied Water, L/kg 190
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 17 to 29
22 to 25
Strength to Weight: Bending, points 17 to 24
20 to 22
Thermal Diffusivity, mm2/s 4.5
3.7
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
0.040 to 0.1
Chromium (Cr), % 0 to 0.2
15.5 to 17.5
Cobalt (Co), % 16 to 18
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 50.3 to 56
57.9 to 65.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 28 to 30
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.2
0.3 to 0.6
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0
2.5 to 3.5
Zirconium (Zr), % 0 to 0.1
0