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ACI-ASTM CK3MCuN Steel vs. Grade M30C Nickel

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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