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ASTM A369 Grade FP91 vs. EN 1.8503 Steel

Both ASTM A369 grade FP91 and EN 1.8503 steel are iron alloys. They have a moderately high 92% 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 FP91 and the bottom bar is EN 1.8503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
16
Fatigue Strength, MPa 320
600
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 410
610
Tensile Strength: Ultimate (UTS), MPa 670
1000
Tensile Strength: Yield (Proof), MPa 460
910

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
3.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.3
Embodied Energy, MJ/kg 37
33
Embodied Water, L/kg 88
57

Common Calculations

PREN (Pitting Resistance) 13
3.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
150
Resilience: Unit (Modulus of Resilience), kJ/m3 560
2200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
35
Strength to Weight: Bending, points 22
28
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 18
29

Alloy Composition

Aluminum (Al), % 0 to 0.020
0 to 0.3
Carbon (C), % 0.080 to 0.12
0.16 to 0.24
Chromium (Cr), % 8.0 to 9.5
1.2 to 1.5
Iron (Fe), % 87.3 to 90.3
95.8 to 97.5
Manganese (Mn), % 0.3 to 0.6
0.4 to 0.8
Molybdenum (Mo), % 0.85 to 1.1
0.65 to 0.8
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.2 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0.25 to 0.35
Zirconium (Zr), % 0 to 0.010
0