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Monel K-500 vs. ASTM A369 Grade FP21

Monel K-500 belongs to the nickel alloys classification, while ASTM A369 grade FP21 belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is Monel K-500 and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
190
Elongation at Break, % 25 to 36
20
Fatigue Strength, MPa 260 to 560
160
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 61
74
Shear Strength, MPa 430 to 700
300
Tensile Strength: Ultimate (UTS), MPa 640 to 1100
470
Tensile Strength: Yield (Proof), MPa 310 to 880
240

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 900
470
Melting Completion (Liquidus), °C 1350
1470
Melting Onset (Solidus), °C 1320
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 18
41
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 50
4.0
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.8
Embodied Energy, MJ/kg 120
23
Embodied Water, L/kg 280
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 260
80
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 2420
150
Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 21 to 35
17
Strength to Weight: Bending, points 19 to 27
17
Thermal Diffusivity, mm2/s 4.8
11
Thermal Shock Resistance, points 21 to 36
14

Alloy Composition

Aluminum (Al), % 2.3 to 3.2
0
Carbon (C), % 0 to 0.18
0.050 to 0.15
Chromium (Cr), % 0
2.7 to 3.4
Copper (Cu), % 27 to 33
0
Iron (Fe), % 0 to 2.0
94.3 to 96.2
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.8 to 1.1
Nickel (Ni), % 63 to 70.4
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.025
Titanium (Ti), % 0.35 to 0.85
0