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ASTM A369 Grade FP91 vs. EN 1.6982 Stainless Steel

Both ASTM A369 grade FP91 and EN 1.6982 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 1.6982 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
17
Fatigue Strength, MPa 320
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 670
800
Tensile Strength: Yield (Proof), MPa 460
570

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Mechanical, °C 600
770
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.4
Embodied Energy, MJ/kg 37
33
Embodied Water, L/kg 88
110

Common Calculations

PREN (Pitting Resistance) 13
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 560
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
28
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 6.9
6.6
Thermal Shock Resistance, points 18
29

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.050
Chromium (Cr), % 8.0 to 9.5
12 to 13.5
Iron (Fe), % 87.3 to 90.3
78.7 to 84.5
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.85 to 1.1
0 to 0.7
Nickel (Ni), % 0 to 0.4
3.5 to 5.0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.2 to 0.5
0 to 1.0
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