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Grade FDC Steel vs. AISI 422 Stainless Steel

Both grade FDC steel and AISI 422 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 26 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 grade FDC steel and the bottom bar is AISI 422 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
260 to 330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 42
34 to 40
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 1680
910 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
650
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1470
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
24
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
44
Embodied Water, L/kg 47
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60
32 to 38
Strength to Weight: Bending, points 40
26 to 30
Thermal Diffusivity, mm2/s 14
6.4
Thermal Shock Resistance, points 50
33 to 39

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.2 to 0.25
Chromium (Cr), % 0 to 0.3
11 to 12.5
Copper (Cu), % 0 to 0.12
0
Iron (Fe), % 98 to 99.4
81.9 to 85.8
Manganese (Mn), % 0.5 to 1.2
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0
0.5 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.1 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.025
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3