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ASTM A369 Grade FP91 vs. EN 1.1104 Steel

Both ASTM A369 grade FP91 and EN 1.1104 steel are iron alloys. They have a moderately high 90% 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 FP91 and the bottom bar is EN 1.1104 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
27
Fatigue Strength, MPa 320
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 410
280
Tensile Strength: Ultimate (UTS), MPa 670
440
Tensile Strength: Yield (Proof), MPa 460
280

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
400
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 26
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 37
20
Embodied Water, L/kg 88
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 560
200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
15
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 6.9
13
Thermal Shock Resistance, points 18
14

Alloy Composition

Aluminum (Al), % 0 to 0.020
0.020 to 0.024
Carbon (C), % 0.080 to 0.12
0 to 0.16
Chromium (Cr), % 8.0 to 9.5
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 87.3 to 90.3
96.6 to 99.38
Manganese (Mn), % 0.3 to 0.6
0.6 to 1.5
Molybdenum (Mo), % 0.85 to 1.1
0 to 0.080
Nickel (Ni), % 0 to 0.4
0 to 0.5
Niobium (Nb), % 0.060 to 0.1
0 to 0.050
Nitrogen (N), % 0.030 to 0.070
0 to 0.012
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0.2 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.0050
Titanium (Ti), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0.18 to 0.25
0 to 0.050
Zirconium (Zr), % 0 to 0.010
0