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ASTM A369 Grade FP91 vs. EN 1.4568 Stainless Steel

Both ASTM A369 grade FP91 and EN 1.4568 stainless steel are iron alloys. They have 84% 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 1.4568 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
2.3 to 21
Fatigue Strength, MPa 320
220 to 670
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 410
520 to 930
Tensile Strength: Ultimate (UTS), MPa 670
830 to 1620
Tensile Strength: Yield (Proof), MPa 460
330 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 600
890
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 37
40
Embodied Water, L/kg 88
140

Common Calculations

PREN (Pitting Resistance) 13
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
36 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 560
290 to 5710
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
30 to 58
Strength to Weight: Bending, points 22
25 to 40
Thermal Diffusivity, mm2/s 6.9
4.3
Thermal Shock Resistance, points 18
23 to 46

Alloy Composition

Aluminum (Al), % 0 to 0.020
0.7 to 1.5
Carbon (C), % 0.080 to 0.12
0 to 0.090
Chromium (Cr), % 8.0 to 9.5
16 to 18
Iron (Fe), % 87.3 to 90.3
70.9 to 76.8
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
6.5 to 7.8
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.2 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0