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ASTM A369 Grade FP22 vs. SAE-AISI M2 Steel

Both ASTM A369 grade FP22 and SAE-AISI M2 steel are iron alloys. They have 85% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP22 and the bottom bar is SAE-AISI M2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
77
Tensile Strength: Ultimate (UTS), MPa 470
760 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1470
1610
Melting Onset (Solidus), °C 1430
1570
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 39
22
Thermal Expansion, µm/m-K 13
10

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
24
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 1.7
8.8
Embodied Energy, MJ/kg 23
130
Embodied Water, L/kg 58
98

Common Calculations

PREN (Pitting Resistance) 5.5
31
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
25 to 71
Strength to Weight: Bending, points 17
22 to 44
Thermal Diffusivity, mm2/s 11
5.9
Thermal Shock Resistance, points 14
27 to 76

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.78 to 1.1
Chromium (Cr), % 1.9 to 2.6
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 95 to 96.9
78.5 to 83.4
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.87 to 1.1
4.5 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0.2 to 0.45
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
5.5 to 6.8
Vanadium (V), % 0
1.8 to 2.2