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EN 1.4986 Stainless Steel vs. Nickel 725

EN 1.4986 stainless steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. They have 45% of their average alloy composition in common. There are 28 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 EN 1.4986 stainless steel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
34
Fatigue Strength, MPa 350
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
78
Shear Strength, MPa 460
580
Tensile Strength: Ultimate (UTS), MPa 750
860
Tensile Strength: Yield (Proof), MPa 560
350

Thermal Properties

Latent Heat of Fusion, J/g 290
320
Maximum Temperature: Mechanical, °C 940
980
Melting Completion (Liquidus), °C 1450
1340
Melting Onset (Solidus), °C 1400
1270
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
75
Density, g/cm3 7.9
8.5
Embodied Carbon, kg CO2/kg material 4.8
13
Embodied Energy, MJ/kg 67
190
Embodied Water, L/kg 150
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
240
Resilience: Unit (Modulus of Resilience), kJ/m3 790
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
28
Strength to Weight: Bending, points 23
24
Thermal Shock Resistance, points 16
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
19 to 22.5
Iron (Fe), % 59.4 to 66.6
2.3 to 15.3
Manganese (Mn), % 0 to 1.5
0 to 0.35
Molybdenum (Mo), % 1.6 to 2.0
7.0 to 9.5
Nickel (Ni), % 15.5 to 17.5
55 to 59
Niobium (Nb), % 0.4 to 1.2
2.8 to 4.0
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0.3 to 0.6
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.7