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EN 1.4986 Stainless Steel vs. Grade CW6M Nickel

EN 1.4986 stainless steel belongs to the iron alloys classification, while grade CW6M nickel belongs to the nickel alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 18
29
Fatigue Strength, MPa 350
210
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 750
560
Tensile Strength: Yield (Proof), MPa 560
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 940
970
Melting Completion (Liquidus), °C 1450
1530
Melting Onset (Solidus), °C 1400
1470
Specific Heat Capacity, J/kg-K 470
430
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
65
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 4.8
13
Embodied Energy, MJ/kg 67
170
Embodied Water, L/kg 150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 790
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
17
Thermal Shock Resistance, points 16
16

Alloy Composition

Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0 to 0.070
Chromium (Cr), % 15.5 to 17.5
17 to 20
Iron (Fe), % 59.4 to 66.6
0 to 3.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.6 to 2.0
17 to 20
Nickel (Ni), % 15.5 to 17.5
54.9 to 66
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030