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ASTM A369 Grade FPA vs. EN 1.6750 Steel

Both ASTM A369 grade FPA and EN 1.6750 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FPA and the bottom bar is EN 1.6750 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
18
Fatigue Strength, MPa 180
310
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 380
650
Tensile Strength: Yield (Proof), MPa 240
460

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 18
22
Embodied Water, L/kg 46
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13
23
Strength to Weight: Bending, points 15
21
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 12
19

Alloy Composition

Carbon (C), % 0 to 0.25
0.17 to 0.23
Chromium (Cr), % 0
0.3 to 0.5
Iron (Fe), % 98.3 to 99.63
95.3 to 97.5
Manganese (Mn), % 0.27 to 0.93
0.8 to 1.2
Molybdenum (Mo), % 0
0.4 to 0.8
Nickel (Ni), % 0
0.8 to 1.2
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.1 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.035
0 to 0.030