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ASTM A369 Grade FP9 vs. EN 1.7366 Steel

Both ASTM A369 grade FP9 and EN 1.7366 steel are iron alloys. They have a moderately high 95% 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 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
140 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
17 to 19
Fatigue Strength, MPa 160
160 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
74
Shear Strength, MPa 300
290 to 440
Tensile Strength: Ultimate (UTS), MPa 470
460 to 710
Tensile Strength: Yield (Proof), MPa 240
230 to 480

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 600
510
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 10
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.7
Embodied Energy, MJ/kg 28
23
Embodied Water, L/kg 87
69

Common Calculations

PREN (Pitting Resistance) 12
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
74 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
140 to 600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
16 to 25
Strength to Weight: Bending, points 17
17 to 23
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 13
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.18
Chromium (Cr), % 8.0 to 10
4.0 to 6.0
Iron (Fe), % 87.1 to 90.3
91.9 to 95.3
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.8
Molybdenum (Mo), % 0.9 to 1.1
0.45 to 0.65
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.5 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015