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ASTM A369 Grade FP9 vs. EN 1.7378 Steel

Both ASTM A369 grade FP9 and EN 1.7378 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 32 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 FP9 and the bottom bar is EN 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
17
Fatigue Strength, MPa 160
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74
Shear Strength, MPa 300
430
Tensile Strength: Ultimate (UTS), MPa 470
700
Tensile Strength: Yield (Proof), MPa 240
490

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 600
460
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.3
Embodied Energy, MJ/kg 28
33
Embodied Water, L/kg 87
61

Common Calculations

PREN (Pitting Resistance) 12
5.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 6.9
10
Thermal Shock Resistance, points 13
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.15
0.050 to 0.1
Chromium (Cr), % 8.0 to 10
2.2 to 2.6
Iron (Fe), % 87.1 to 90.3
94.6 to 96.1
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.7
Molybdenum (Mo), % 0.9 to 1.1
0.9 to 1.1
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.5 to 1.0
0.15 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.050 to 0.1
Vanadium (V), % 0
0.2 to 0.3