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ASTM A369 Grade FP91 vs. EN 1.0258 Steel

Both ASTM A369 grade FP91 and EN 1.0258 steel are iron alloys. They have 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 1.0258 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
23
Fatigue Strength, MPa 320
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Shear Strength, MPa 410
310
Tensile Strength: Ultimate (UTS), MPa 670
490
Tensile Strength: Yield (Proof), MPa 460
290

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
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.1
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.5
Embodied Energy, MJ/kg 37
19
Embodied Water, L/kg 88
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
95
Resilience: Unit (Modulus of Resilience), kJ/m3 560
220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 6.9
13
Thermal Shock Resistance, points 18
16

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.2
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
96.9 to 100
Manganese (Mn), % 0.3 to 0.6
0 to 1.4
Molybdenum (Mo), % 0.85 to 1.1
0 to 0.080
Nickel (Ni), % 0 to 0.4
0 to 0.3
Niobium (Nb), % 0.060 to 0.1
0 to 0.010
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 0.020
Titanium (Ti), % 0 to 0.010
0 to 0.040
Vanadium (V), % 0.18 to 0.25
0 to 0.020
Zirconium (Zr), % 0 to 0.010
0