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ASTM A369 Grade FP1 vs. EN 1.0580 Steel

Both ASTM A369 grade FP1 and EN 1.0580 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is ASTM A369 grade FP1 and the bottom bar is EN 1.0580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
5.6 to 25
Fatigue Strength, MPa 160
210 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 270
340 to 360
Tensile Strength: Ultimate (UTS), MPa 430
540 to 620
Tensile Strength: Yield (Proof), MPa 240
290 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 47
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75
31 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 150
230 to 540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 15
19 to 22
Strength to Weight: Bending, points 16
19 to 21
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 13
17 to 20

Alloy Composition

Carbon (C), % 0.1 to 0.2
0 to 0.22
Iron (Fe), % 97.8 to 99.06
97.5 to 100
Manganese (Mn), % 0.3 to 0.8
0 to 1.6
Molybdenum (Mo), % 0.44 to 0.65
0
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.1 to 0.5
0 to 0.55
Sulfur (S), % 0 to 0.025
0 to 0.045