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AISI 440A Stainless Steel vs. Grade FDCrV Steel

Both AISI 440A stainless steel and grade FDCrV steel are iron alloys. They have 83% of their average alloy composition in common. There are 24 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 grade FDCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
1800

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 760
410
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
48
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.9
Embodied Energy, MJ/kg 31
26
Embodied Water, L/kg 120
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26 to 65
64
Strength to Weight: Bending, points 23 to 43
42
Thermal Diffusivity, mm2/s 6.2
13
Thermal Shock Resistance, points 26 to 65
53

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.62 to 0.72
Chromium (Cr), % 16 to 18
0.4 to 0.6
Copper (Cu), % 0
0 to 0.12
Iron (Fe), % 78.4 to 83.4
97.8 to 98.8
Manganese (Mn), % 0 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.75
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0
0.15 to 0.25