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EN 1.4655 Stainless Steel vs. Grade CW6MC Nickel

EN 1.4655 stainless steel belongs to the iron alloys classification, while grade CW6MC nickel belongs to the nickel alloys. They have a modest 30% 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 EN 1.4655 stainless steel and the bottom bar is grade CW6MC nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23 to 25
28
Fatigue Strength, MPa 320
210
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 720 to 730
540
Tensile Strength: Yield (Proof), MPa 450 to 480
310

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 1050
980
Melting Completion (Liquidus), °C 1420
1480
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
80
Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 2.9
14
Embodied Energy, MJ/kg 41
200
Embodied Water, L/kg 160
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
130
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 580
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 4.0
2.8
Thermal Shock Resistance, points 20
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 22 to 24
20 to 23
Copper (Cu), % 1.0 to 3.0
0
Iron (Fe), % 63.6 to 73.4
0 to 5.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.1 to 0.6
8.0 to 10
Nickel (Ni), % 3.5 to 5.5
55.4 to 68.9
Niobium (Nb), % 0
3.2 to 4.5
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030