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ASTM A369 Grade FP9 vs. EN 1.7379 Steel

Both ASTM A369 grade FP9 and EN 1.7379 steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.7379 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 160
320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74
Tensile Strength: Ultimate (UTS), MPa 470
670
Tensile Strength: Yield (Proof), MPa 240
460

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
1420
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
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
3.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.8
Embodied Energy, MJ/kg 28
23
Embodied Water, L/kg 87
59

Common Calculations

PREN (Pitting Resistance) 12
5.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
22
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 13
19

Alloy Composition

Carbon (C), % 0 to 0.15
0.13 to 0.2
Chromium (Cr), % 8.0 to 10
2.0 to 2.5
Iron (Fe), % 87.1 to 90.3
94.5 to 96.5
Manganese (Mn), % 0.3 to 0.6
0.5 to 0.9
Molybdenum (Mo), % 0.9 to 1.1
0.9 to 1.2
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.5 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030