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AISI 440A Stainless Steel vs. ASTM F15 Fe-Ni-Co

Both AISI 440A stainless steel and ASTM F15 Fe-Ni-Co 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 (9, in this case) are not shown.

For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is ASTM F15 Fe-Ni-Co.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
520 to 880

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1370
1450
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 23
17
Thermal Expansion, µm/m-K 10
6.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
49
Density, g/cm3 7.7
8.3
Embodied Carbon, kg CO2/kg material 2.2
5.2
Embodied Energy, MJ/kg 31
71
Embodied Water, L/kg 120
190

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26 to 65
17 to 29
Strength to Weight: Bending, points 23 to 43
17 to 24
Thermal Diffusivity, mm2/s 6.2
4.5
Thermal Shock Resistance, points 26 to 65
32 to 55

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.6 to 0.75
0 to 0.040
Chromium (Cr), % 16 to 18
0 to 0.2
Cobalt (Co), % 0
16 to 18
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 78.4 to 83.4
50.3 to 56
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.75
0 to 0.2
Nickel (Ni), % 0
28 to 30
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Zirconium (Zr), % 0
0 to 0.1

Comparable Variants