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Nickel 686 vs. ACI-ASTM CE3MN Steel

Nickel 686 belongs to the nickel alloys classification, while ACI-ASTM CE3MN steel belongs to the iron alloys. They have a modest 35% of their average alloy composition in common, which, by itself, doesn't mean much. 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 nickel 686 and the bottom bar is ACI-ASTM CE3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
210
Elongation at Break, % 51
20
Fatigue Strength, MPa 410
380
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 780
770
Tensile Strength: Yield (Proof), MPa 350
590

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1380
1450
Melting Onset (Solidus), °C 1340
1410
Specific Heat Capacity, J/kg-K 420
470
Thermal Conductivity, W/m-K 9.8
15
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 70
21
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 12
4.2
Embodied Energy, MJ/kg 170
58
Embodied Water, L/kg 300
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
140
Resilience: Unit (Modulus of Resilience), kJ/m3 280
840
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 24
27
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 2.6
4.1
Thermal Shock Resistance, points 21
21

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 19 to 23
24 to 26
Iron (Fe), % 0 to 5.0
58.1 to 65.9
Manganese (Mn), % 0 to 0.75
0 to 1.5
Molybdenum (Mo), % 15 to 17
4.0 to 5.0
Nickel (Ni), % 49.5 to 63
6.0 to 8.0
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.080
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.040
Titanium (Ti), % 0.020 to 0.25
0
Tungsten (W), % 3.0 to 4.4
0