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Grade CW6MC Nickel vs. S20910 Stainless Steel

Grade CW6MC nickel belongs to the nickel alloys classification, while S20910 stainless steel belongs to the iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 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 grade CW6MC nickel and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
14 to 39
Fatigue Strength, MPa 210
310 to 460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 540
780 to 940
Tensile Strength: Yield (Proof), MPa 310
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 980
1080
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 80
22
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
4.8
Embodied Energy, MJ/kg 200
68
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 240
460 to 1640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
28 to 33
Strength to Weight: Bending, points 17
24 to 27
Thermal Diffusivity, mm2/s 2.8
3.6
Thermal Shock Resistance, points 15
17 to 21

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 20 to 23
20.5 to 23.5
Iron (Fe), % 0 to 5.0
52.1 to 62.1
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 8.0 to 10
1.5 to 3.0
Nickel (Ni), % 55.4 to 68.9
11.5 to 13.5
Niobium (Nb), % 3.2 to 4.5
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3