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Grade M30C Nickel vs. ACI-ASTM CK3MCuN Steel

Grade M30C nickel belongs to the nickel alloys classification, while ACI-ASTM CK3MCuN 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 M30C nickel and the bottom bar is ACI-ASTM CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 29
39
Fatigue Strength, MPa 170
250
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 61
80
Tensile Strength: Ultimate (UTS), MPa 510
620
Tensile Strength: Yield (Proof), MPa 250
290

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Mechanical, °C 900
1090
Melting Completion (Liquidus), °C 1290
1460
Melting Onset (Solidus), °C 1240
1350
Specific Heat Capacity, J/kg-K 430
460
Thermal Conductivity, W/m-K 22
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 60
29
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 9.5
5.6
Embodied Energy, MJ/kg 140
76
Embodied Water, L/kg 250
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 200
210
Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 16
21
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 5.7
3.2
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.025
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 26 to 33
0.5 to 1.0
Iron (Fe), % 0 to 3.5
49.5 to 56.3
Manganese (Mn), % 0 to 1.5
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 56.6 to 72
17.5 to 19.5
Niobium (Nb), % 1.0 to 3.0
0
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010