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ASTM A369 Grade FP9 vs. Nickel 725

ASTM A369 grade FP9 belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM A369 grade FP9 and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
34
Fatigue Strength, MPa 160
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
78
Shear Strength, MPa 300
580
Tensile Strength: Ultimate (UTS), MPa 470
860
Tensile Strength: Yield (Proof), MPa 240
350

Thermal Properties

Latent Heat of Fusion, J/g 270
320
Maximum Temperature: Mechanical, °C 600
980
Melting Completion (Liquidus), °C 1450
1340
Melting Onset (Solidus), °C 1410
1270
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 10
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 2.0
13
Embodied Energy, MJ/kg 28
190
Embodied Water, L/kg 87
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
240
Resilience: Unit (Modulus of Resilience), kJ/m3 140
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 13
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 8.0 to 10
19 to 22.5
Iron (Fe), % 87.1 to 90.3
2.3 to 15.3
Manganese (Mn), % 0.3 to 0.6
0 to 0.35
Molybdenum (Mo), % 0.9 to 1.1
7.0 to 9.5
Nickel (Ni), % 0
55 to 59
Niobium (Nb), % 0
2.8 to 4.0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.5 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7