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SAE-AISI M3 Class 1 Steel vs. Grade FDC Steel

Both SAE-AISI M3 class 1 steel and grade FDC steel are iron alloys. They have 81% 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 M3 class 1 steel and the bottom bar is grade FDC 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 770 to 2150
1680

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1570
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 26
51
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.9
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
1.4
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 100
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
60
Strength to Weight: Bending, points 22 to 44
40
Thermal Diffusivity, mm2/s 7.2
14
Thermal Shock Resistance, points 24 to 67
50

Alloy Composition

Carbon (C), % 1.0 to 1.1
0.6 to 0.75
Chromium (Cr), % 3.8 to 4.5
0 to 0.3
Copper (Cu), % 0 to 0.25
0 to 0.12
Iron (Fe), % 76.9 to 82.9
98 to 99.4
Manganese (Mn), % 0.15 to 0.4
0.5 to 1.2
Molybdenum (Mo), % 4.8 to 6.5
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
0.1 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0