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SAE-AISI M6 Steel vs. Grade FDSiCrV Steel

Both SAE-AISI M6 steel and grade FDSiCrV steel are iron alloys. They have 74% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M6 steel and the bottom bar is grade FDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
2100

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1560
1440
Melting Onset (Solidus), °C 1510
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 17
47
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
2.3
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.0
1.9
Embodied Energy, MJ/kg 120
26
Embodied Water, L/kg 160
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28 to 73
75
Strength to Weight: Bending, points 24 to 45
47
Thermal Diffusivity, mm2/s 4.7
13
Thermal Shock Resistance, points 26 to 68
63

Alloy Composition

Carbon (C), % 0.75 to 0.85
0.5 to 0.7
Chromium (Cr), % 3.8 to 4.5
0.5 to 1.0
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0
0 to 0.12
Iron (Fe), % 68.8 to 74.6
96 to 97.8
Manganese (Mn), % 0.15 to 0.4
0.4 to 0.9
Molybdenum (Mo), % 4.5 to 5.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0.1 to 0.25