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Nickel 689 vs. ASTM A369 Grade FP21

Nickel 689 belongs to the nickel alloys classification, while ASTM A369 grade FP21 belongs to the iron 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 nickel 689 and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 350
140
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 420
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
74
Shear Strength, MPa 790
300
Tensile Strength: Ultimate (UTS), MPa 1250
470
Tensile Strength: Yield (Proof), MPa 690
240

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 990
470
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
4.0
Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 11
1.8
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 330
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
80
Resilience: Unit (Modulus of Resilience), kJ/m3 1170
150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 41
17
Strength to Weight: Bending, points 30
17
Thermal Shock Resistance, points 35
14

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.1 to 0.2
0.050 to 0.15
Chromium (Cr), % 18 to 20
2.7 to 3.4
Cobalt (Co), % 9.0 to 11
0
Iron (Fe), % 0 to 5.0
94.3 to 96.2
Manganese (Mn), % 0 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 9.0 to 10.5
0.8 to 1.1
Nickel (Ni), % 48.3 to 60.9
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.025
Titanium (Ti), % 2.3 to 2.8
0