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ASTM A369 Grade FPA vs. EN 1.6957 Steel

Both ASTM A369 grade FPA and EN 1.6957 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 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 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
18
Fatigue Strength, MPa 180
530
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 240
570
Tensile Strength: Ultimate (UTS), MPa 380
930
Tensile Strength: Yield (Proof), MPa 240
780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
450
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
47
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.1
Embodied Energy, MJ/kg 18
29
Embodied Water, L/kg 46
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
160
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13
33
Strength to Weight: Bending, points 15
27
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 12
27

Alloy Composition

Carbon (C), % 0 to 0.25
0.22 to 0.32
Chromium (Cr), % 0
1.2 to 1.8
Iron (Fe), % 98.3 to 99.63
92.7 to 94.7
Manganese (Mn), % 0.27 to 0.93
0.15 to 0.4
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 0
3.4 to 4.0
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0.1 to 0.5
0 to 0.15
Sulfur (S), % 0 to 0.035
0 to 0.0070
Vanadium (V), % 0
0.050 to 0.15