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ASTM A369 Grade FP91 vs. Grade CW6MC Nickel

ASTM A369 grade FP91 belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. There are 29 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 grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
28
Fatigue Strength, MPa 320
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 670
540
Tensile Strength: Yield (Proof), MPa 460
310

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 600
980
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 26
11
Thermal Expansion, µm/m-K 13
12

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
200
Embodied Water, L/kg 88
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 560
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 6.9
2.8
Thermal Shock Resistance, points 18
15

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.060
Chromium (Cr), % 8.0 to 9.5
20 to 23
Iron (Fe), % 87.3 to 90.3
0 to 5.0
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.85 to 1.1
8.0 to 10
Nickel (Ni), % 0 to 0.4
55.4 to 68.9
Niobium (Nb), % 0.060 to 0.1
3.2 to 4.5
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 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0