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ASTM A369 Grade FPB vs. SAE-AISI 1043 Steel

Both ASTM A369 grade FPB and SAE-AISI 1043 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 1043 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 18
Fatigue Strength, MPa 180
230 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 290
400 to 430
Tensile Strength: Ultimate (UTS), MPa 470
650 to 710
Tensile Strength: Yield (Proof), MPa 270
350 to 600

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
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
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
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
320 to 980
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
23 to 25
Strength to Weight: Bending, points 17
21 to 22
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15
21 to 22

Alloy Composition

Carbon (C), % 0 to 0.3
0.4 to 0.47
Iron (Fe), % 98.1 to 99.61
98.4 to 98.9
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 to 0.050