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ASTM A369 Grade FP2 vs. Grade FDSiCr Steel

Both ASTM A369 grade FP2 and grade FDSiCr steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP2 and the bottom bar is grade FDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
580
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 430
1930

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
410
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 50
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15
69
Strength to Weight: Bending, points 16
44
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 13
58

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.5 to 0.6
Chromium (Cr), % 0.5 to 0.81
0.5 to 0.8
Copper (Cu), % 0
0 to 0.12
Iron (Fe), % 97.4 to 98.6
96.5 to 97.8
Manganese (Mn), % 0.3 to 0.61
0.5 to 0.9
Molybdenum (Mo), % 0.44 to 0.65
0
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.1 to 0.3
1.2 to 1.6
Sulfur (S), % 0 to 0.025
0 to 0.025