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Grade CW6MC Nickel vs. S44700 Stainless Steel

Grade CW6MC nickel belongs to the nickel alloys classification, while S44700 stainless steel belongs to the iron alloys. They have a modest 28% 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 (10, in this case) are not shown.

For each property being compared, the top bar is grade CW6MC nickel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 28
23
Fatigue Strength, MPa 210
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 79
82
Tensile Strength: Ultimate (UTS), MPa 540
600
Tensile Strength: Yield (Proof), MPa 310
450

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 980
1100
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 80
18
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
3.6
Embodied Energy, MJ/kg 200
49
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 17
20
Thermal Shock Resistance, points 15
19

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.010
Chromium (Cr), % 20 to 23
28 to 30
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 0 to 5.0
64.9 to 68.5
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 8.0 to 10
3.5 to 4.2
Nickel (Ni), % 55.4 to 68.9
0 to 0.15
Niobium (Nb), % 3.2 to 4.5
0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.020