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Grade FDSiCrV Steel vs. SAE-AISI A4 Steel

Both grade FDSiCrV steel and SAE-AISI A4 steel are iron alloys. They have a very high 96% 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 grade FDSiCrV steel and the bottom bar is SAE-AISI A4 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 80
73
Tensile Strength: Ultimate (UTS), MPa 2100
710 to 2050

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 47
40
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
3.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.8
Embodied Energy, MJ/kg 26
24
Embodied Water, L/kg 50
59

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 75
25 to 73
Strength to Weight: Bending, points 47
23 to 46
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 63
23 to 67

Alloy Composition

Carbon (C), % 0.5 to 0.7
1.0 to 1.1
Chromium (Cr), % 0.5 to 1.0
0.9 to 2.2
Copper (Cu), % 0 to 0.12
0 to 0.25
Iron (Fe), % 96 to 97.8
92 to 95.5
Manganese (Mn), % 0.4 to 0.9
1.8 to 2.2
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 1.2 to 1.7
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0.1 to 0.25
0