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ASTM A369 Grade FP91 vs. Nickel 625

ASTM A369 grade FP91 belongs to the iron alloys classification, while nickel 625 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP91 and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
33 to 34
Fatigue Strength, MPa 320
240 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
79
Shear Strength, MPa 410
530 to 600
Tensile Strength: Ultimate (UTS), MPa 670
790 to 910
Tensile Strength: Yield (Proof), MPa 460
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 600
980
Melting Completion (Liquidus), °C 1460
1350
Melting Onset (Solidus), °C 1420
1290
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
80
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 2.6
14
Embodied Energy, MJ/kg 37
190
Embodied Water, L/kg 88
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 560
260 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
26 to 29
Strength to Weight: Bending, points 22
22 to 24
Thermal Diffusivity, mm2/s 6.9
2.9
Thermal Shock Resistance, points 18
22 to 25

Alloy Composition

Aluminum (Al), % 0 to 0.020
0 to 0.4
Carbon (C), % 0.080 to 0.12
0 to 0.1
Chromium (Cr), % 8.0 to 9.5
20 to 23
Cobalt (Co), % 0
0 to 1.0
Iron (Fe), % 87.3 to 90.3
0 to 5.0
Manganese (Mn), % 0.3 to 0.6
0 to 0.5
Molybdenum (Mo), % 0.85 to 1.1
8.0 to 10
Nickel (Ni), % 0 to 0.4
58 to 68.9
Niobium (Nb), % 0.060 to 0.1
3.2 to 4.2
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0.2 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.015
Titanium (Ti), % 0 to 0.010
0 to 0.4
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0