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ASTM A369 Grade FP11 vs. SAE-AISI 8620 Steel

Both ASTM A369 grade FP11 and SAE-AISI 8620 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP11 and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
13 to 31
Fatigue Strength, MPa 160
270 to 360
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
340 to 420
Tensile Strength: Ultimate (UTS), MPa 470
520 to 690
Tensile Strength: Yield (Proof), MPa 240
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 430
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 52
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
86 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 150
340 to 880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
18 to 24
Strength to Weight: Bending, points 17
18 to 22
Thermal Diffusivity, mm2/s 11
10
Thermal Shock Resistance, points 14
15 to 20

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.18 to 0.23
Chromium (Cr), % 1.0 to 1.5
0.4 to 0.6
Iron (Fe), % 96.1 to 97.7
96.9 to 98
Manganese (Mn), % 0.3 to 0.6
0.7 to 0.9
Molybdenum (Mo), % 0.44 to 0.65
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.5 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040