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ASTM A369 Grade FP91 vs. Nickel 689

ASTM A369 grade FP91 belongs to the iron alloys classification, while nickel 689 belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 689.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
350
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 19
23
Fatigue Strength, MPa 320
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
80
Shear Strength, MPa 410
790
Tensile Strength: Ultimate (UTS), MPa 670
1250
Tensile Strength: Yield (Proof), MPa 460
690

Thermal Properties

Latent Heat of Fusion, J/g 270
330
Maximum Temperature: Mechanical, °C 600
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
70
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 2.6
11
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 88
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
240
Resilience: Unit (Modulus of Resilience), kJ/m3 560
1170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 24
41
Strength to Weight: Bending, points 22
30
Thermal Shock Resistance, points 18
35

Alloy Composition

Aluminum (Al), % 0 to 0.020
0.75 to 1.3
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0.080 to 0.12
0.1 to 0.2
Chromium (Cr), % 8.0 to 9.5
18 to 20
Cobalt (Co), % 0
9.0 to 11
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
9.0 to 10.5
Nickel (Ni), % 0 to 0.4
48.3 to 60.9
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.025
0 to 0.015
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
2.3 to 2.8
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0