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ASTM A369 Grade FPB vs. AISI W2 Steel

Both ASTM A369 grade FPB and AISI W2 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 23 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 FPB and the bottom bar is AISI W2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 470
580 to 2400

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
45
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 18
29
Embodied Water, L/kg 46
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
21 to 86
Strength to Weight: Bending, points 17
20 to 51
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 15
19 to 80

Alloy Composition

Carbon (C), % 0 to 0.3
0.85 to 1.5
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 98.1 to 99.61
96.2 to 98.6
Manganese (Mn), % 0.29 to 1.1
0.35 to 0.74
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.1 to 0.5
0.1 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.025
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
0.15 to 0.35