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Annealed SAE-AISI F1 vs. Annealed SAE-AISI M2

Both annealed SAE-AISI F1 and annealed SAE-AISI M2 are iron alloys. Both are furnished in the annealed condition. They have 84% of their average alloy composition in common. There are 23 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 annealed SAE-AISI F1 and the bottom bar is annealed SAE-AISI M2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
230
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 620
760

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Melting Completion (Liquidus), °C 1480
1610
Melting Onset (Solidus), °C 1430
1570
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 45
22
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
24
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 1.7
8.8
Embodied Energy, MJ/kg 24
130
Embodied Water, L/kg 46
98

Common Calculations

PREN (Pitting Resistance) 2.3
31
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 12
5.9
Thermal Shock Resistance, points 19
27

Alloy Composition

Carbon (C), % 1.0 to 1.3
0.78 to 1.1
Chromium (Cr), % 0
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 95.9 to 98
78.5 to 83.4
Manganese (Mn), % 0 to 0.5
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.1 to 0.5
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.0 to 1.8
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2