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Grade CW6MC Nickel vs. ACI-ASTM CA6N Steel

Grade CW6MC nickel belongs to the nickel alloys classification, while ACI-ASTM CA6N steel belongs to the iron alloys. They have a modest 22% 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 grade CW6MC nickel and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
17
Fatigue Strength, MPa 210
640
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 540
1080
Tensile Strength: Yield (Proof), MPa 310
1060

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 980
740
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 11
23
Thermal Expansion, µm/m-K 12
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.3
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.4
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 80
11
Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 14
2.5
Embodied Energy, MJ/kg 200
35
Embodied Water, L/kg 290
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 240
2900
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
38
Strength to Weight: Bending, points 17
30
Thermal Diffusivity, mm2/s 2.8
6.1
Thermal Shock Resistance, points 15
40

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 20 to 23
10.5 to 12.5
Iron (Fe), % 0 to 5.0
77.9 to 83.5
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 55.4 to 68.9
6.0 to 8.0
Niobium (Nb), % 3.2 to 4.5
0
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020