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SAE-AISI A8 Steel vs. Grade FDCrV Steel

Both SAE-AISI A8 steel and grade FDCrV steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI A8 steel and the bottom bar is grade FDCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 700 to 1920
1800

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 37
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.9
Embodied Energy, MJ/kg 31
26
Embodied Water, L/kg 73
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 68
64
Strength to Weight: Bending, points 22 to 44
42
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 22 to 62
53

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.62 to 0.72
Chromium (Cr), % 4.8 to 5.5
0.4 to 0.6
Copper (Cu), % 0 to 0.25
0 to 0.12
Iron (Fe), % 88.5 to 91.9
97.8 to 98.8
Manganese (Mn), % 0 to 0.5
0.5 to 0.9
Molybdenum (Mo), % 1.2 to 1.7
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.75 to 1.1
0.15 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 1.0 to 1.5
0
Vanadium (V), % 0
0.15 to 0.25