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ACI-ASTM CN7M Steel vs. Nickel 242

ACI-ASTM CN7M steel belongs to the iron alloys classification, while nickel 242 belongs to the nickel alloys. They have 42% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M steel and the bottom bar is nickel 242.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
220
Elongation at Break, % 44
45
Fatigue Strength, MPa 190
300
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
84
Tensile Strength: Ultimate (UTS), MPa 480
820
Tensile Strength: Yield (Proof), MPa 200
350

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
930
Melting Completion (Liquidus), °C 1410
1380
Melting Onset (Solidus), °C 1450
1290
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 32
75
Density, g/cm3 8.1
9.0
Embodied Carbon, kg CO2/kg material 5.6
14
Embodied Energy, MJ/kg 78
180
Embodied Water, L/kg 210
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
300
Resilience: Unit (Modulus of Resilience), kJ/m3 110
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 17
25
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 5.6
3.1
Thermal Shock Resistance, points 12
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 19 to 22
7.0 to 9.0
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 3.0 to 4.0
0 to 0.5
Iron (Fe), % 37.4 to 48.5
0 to 2.0
Manganese (Mn), % 0 to 1.5
0 to 0.8
Molybdenum (Mo), % 2.0 to 3.0
24 to 26
Nickel (Ni), % 27.5 to 30.5
59.3 to 69
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.015