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ASTM A369 Grade FP22 vs. SAE-AISI H24 Steel

Both ASTM A369 grade FP22 and SAE-AISI H24 steel are iron alloys. They have 83% 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 H24 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
78
Tensile Strength: Ultimate (UTS), MPa 470
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Melting Completion (Liquidus), °C 1470
1750
Melting Onset (Solidus), °C 1430
1700
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 39
27
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
37
Density, g/cm3 7.9
9.1
Embodied Carbon, kg CO2/kg material 1.7
6.1
Embodied Energy, MJ/kg 23
93
Embodied Water, L/kg 58
78

Common Calculations

PREN (Pitting Resistance) 5.5
28
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 17
22 to 61
Strength to Weight: Bending, points 17
20 to 39
Thermal Diffusivity, mm2/s 11
6.9
Thermal Shock Resistance, points 14
22 to 61

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.42 to 0.53
Chromium (Cr), % 1.9 to 2.6
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 95 to 96.9
78 to 82.4
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.87 to 1.1
0
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0.15 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6