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SAE-AISI M2 Steel vs. Grade FDSiCr Steel

Both SAE-AISI M2 steel and grade FDSiCr steel are iron alloys. They have 83% 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 M2 steel and the bottom bar is grade FDSiCr 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 760 to 2150
1930

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1570
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 22
48
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.2
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.8
1.5
Embodied Energy, MJ/kg 130
20
Embodied Water, L/kg 98
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25 to 71
69
Strength to Weight: Bending, points 22 to 44
44
Thermal Diffusivity, mm2/s 5.9
13
Thermal Shock Resistance, points 27 to 76
58

Alloy Composition

Carbon (C), % 0.78 to 1.1
0.5 to 0.6
Chromium (Cr), % 3.8 to 4.5
0.5 to 0.8
Copper (Cu), % 0 to 0.25
0 to 0.12
Iron (Fe), % 78.5 to 83.4
96.5 to 97.8
Manganese (Mn), % 0.15 to 0.4
0.5 to 0.9
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0