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ACI-ASTM CN7M Steel vs. N08120 Nickel

ACI-ASTM CN7M steel belongs to the iron alloys classification, while N08120 nickel belongs to the nickel alloys. They have 84% of their average alloy composition in common. There are 28 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 ACI-ASTM CN7M steel and the bottom bar is N08120 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
34
Fatigue Strength, MPa 190
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 480
700
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1450
1370
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 21
11
Thermal Expansion, µm/m-K 15
14

Otherwise Unclassified Properties

Base Metal Price, % relative 32
45
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 5.6
7.2
Embodied Energy, MJ/kg 78
100
Embodied Water, L/kg 210
240

Common Calculations

PREN (Pitting Resistance) 29
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190
Resilience: Unit (Modulus of Resilience), kJ/m3 110
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 5.6
3.0
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.4
Boron (B), % 0
0 to 0.010
Carbon (C), % 0 to 0.070
0.020 to 0.1
Chromium (Cr), % 19 to 22
23 to 27
Cobalt (Co), % 0
0 to 3.0
Copper (Cu), % 3.0 to 4.0
0 to 0.5
Iron (Fe), % 37.4 to 48.5
21 to 41.4
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 2.5
Nickel (Ni), % 27.5 to 30.5
35 to 39
Niobium (Nb), % 0
0.4 to 0.9
Nitrogen (N), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 0
0 to 2.5