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ASTM A369 Grade FPB vs. EN 1.0034 Steel

Both ASTM A369 grade FPB and EN 1.0034 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is ASTM A369 grade FPB and the bottom bar is EN 1.0034 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
97 to 110
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
9.0 to 32
Fatigue Strength, MPa 180
140 to 170
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 290
220 to 230
Tensile Strength: Ultimate (UTS), MPa 470
340 to 380
Tensile Strength: Yield (Proof), MPa 270
180 to 280

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
53
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
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 46
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
31 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 190
84 to 210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
12 to 13
Strength to Weight: Bending, points 17
14 to 15
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15
11 to 12

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.15
Iron (Fe), % 98.1 to 99.61
98.7 to 100
Manganese (Mn), % 0.29 to 1.1
0 to 0.7
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.1 to 0.5
0 to 0.35
Sulfur (S), % 0 to 0.035
0 to 0.045