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EN 1.4986 Stainless Steel vs. Grade CX2MW Nickel

EN 1.4986 stainless steel belongs to the iron alloys classification, while grade CX2MW nickel belongs to the nickel alloys. They have a modest 40% 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 (5, 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 grade CX2MW nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 18
34
Fatigue Strength, MPa 350
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 750
620
Tensile Strength: Yield (Proof), MPa 560
350

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 940
980
Melting Completion (Liquidus), °C 1450
1550
Melting Onset (Solidus), °C 1400
1490
Specific Heat Capacity, J/kg-K 470
430
Thermal Conductivity, W/m-K 15
10
Thermal Expansion, µm/m-K 17
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 25
65
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 4.8
12
Embodied Energy, MJ/kg 67
170
Embodied Water, L/kg 150
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
180
Resilience: Unit (Modulus of Resilience), kJ/m3 790
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
19
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.0
2.7
Thermal Shock Resistance, points 16
17

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.020
Chromium (Cr), % 15.5 to 17.5
20 to 22.5
Iron (Fe), % 59.4 to 66.6
2.0 to 6.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.6 to 2.0
12.5 to 14.5
Nickel (Ni), % 15.5 to 17.5
51.3 to 63
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0.3 to 0.6
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35