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AISI W5 Steel vs. ASTM A369 Grade FPA

Both AISI W5 steel and ASTM A369 grade FPA 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 AISI W5 steel and the bottom bar is ASTM A369 grade FPA.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 600 to 2360
380

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 21
18
Embodied Water, L/kg 48
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 84
13
Strength to Weight: Bending, points 20 to 50
15
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 20 to 78
12

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.25
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 96.6 to 98.4
98.3 to 99.63
Manganese (Mn), % 0.1 to 0.4
0.27 to 0.93
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.1 to 0.4
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.035
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0 to 0.1
0