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Grade CW6MC Nickel vs. AISI 420 Stainless Steel

Grade CW6MC nickel belongs to the nickel alloys classification, while AISI 420 stainless steel belongs to the iron alloys. 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 grade CW6MC nickel and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
8.0 to 15
Fatigue Strength, MPa 210
220 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 540
690 to 1720
Tensile Strength: Yield (Proof), MPa 310
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 980
620
Melting Completion (Liquidus), °C 1480
1510
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
27
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 80
7.5
Density, g/cm3 8.6
7.7
Embodied Carbon, kg CO2/kg material 14
2.0
Embodied Energy, MJ/kg 200
28
Embodied Water, L/kg 290
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 240
380 to 4410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
25 to 62
Strength to Weight: Bending, points 17
22 to 41
Thermal Diffusivity, mm2/s 2.8
7.3
Thermal Shock Resistance, points 15
25 to 62

Alloy Composition

Carbon (C), % 0 to 0.060
0.15 to 0.4
Chromium (Cr), % 20 to 23
12 to 14
Iron (Fe), % 0 to 5.0
82.3 to 87.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 8.0 to 10
0 to 0.5
Nickel (Ni), % 55.4 to 68.9
0 to 0.75
Niobium (Nb), % 3.2 to 4.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030