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ASTM A369 Grade FP9 vs. EN 1.6511 Steel

Both ASTM A369 grade FP9 and EN 1.6511 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP9 and the bottom bar is EN 1.6511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
12
Fatigue Strength, MPa 160
480
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 300
600
Tensile Strength: Ultimate (UTS), MPa 470
990
Tensile Strength: Yield (Proof), MPa 240
770

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
430
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
36
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
3.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.6
Embodied Energy, MJ/kg 28
21
Embodied Water, L/kg 87
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
35
Strength to Weight: Bending, points 17
28
Thermal Diffusivity, mm2/s 6.9
9.9
Thermal Shock Resistance, points 13
29

Alloy Composition

Carbon (C), % 0 to 0.15
0.32 to 0.4
Chromium (Cr), % 8.0 to 10
0.9 to 1.2
Iron (Fe), % 87.1 to 90.3
95.6 to 97.2
Manganese (Mn), % 0.3 to 0.6
0.5 to 0.8
Molybdenum (Mo), % 0.9 to 1.1
0.15 to 0.3
Nickel (Ni), % 0
0.9 to 1.2
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.5 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035