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ASTM A369 Grade FPB vs. SAE-AISI 1146 Steel

Both ASTM A369 grade FPB and SAE-AISI 1146 steel are iron alloys. Their average alloy composition is basically identical. 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 FPB and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
13 to 17
Fatigue Strength, MPa 180
240 to 400
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 290
410 to 440
Tensile Strength: Ultimate (UTS), MPa 470
670 to 730
Tensile Strength: Yield (Proof), MPa 270
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 52
51
Thermal Expansion, µm/m-K 12
13

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 190
340 to 1050
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24 to 26
Strength to Weight: Bending, points 17
22 to 23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.3
0.42 to 0.49
Iron (Fe), % 98.1 to 99.61
98.3 to 98.8
Manganese (Mn), % 0.29 to 1.1
0.7 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0
Sulfur (S), % 0 to 0.035
0.080 to 0.13