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ASTM A369 Grade FP91 vs. Grade CW6M Nickel

ASTM A369 grade FP91 belongs to the iron alloys classification, while grade CW6M nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 19
29
Fatigue Strength, MPa 320
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
84
Tensile Strength: Ultimate (UTS), MPa 670
560
Tensile Strength: Yield (Proof), MPa 460
310

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 600
970
Melting Completion (Liquidus), °C 1460
1530
Melting Onset (Solidus), °C 1420
1470
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
65
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 2.6
13
Embodied Energy, MJ/kg 37
170
Embodied Water, L/kg 88
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 560
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 22
17
Thermal Shock Resistance, points 18
16

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Carbon (C), % 0.080 to 0.12
0 to 0.070
Chromium (Cr), % 8.0 to 9.5
17 to 20
Iron (Fe), % 87.3 to 90.3
0 to 3.0
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.85 to 1.1
17 to 20
Nickel (Ni), % 0 to 0.4
54.9 to 66
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 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