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ACI-ASTM CN7M Steel vs. N07750 Nickel

ACI-ASTM CN7M steel belongs to the iron alloys classification, while N07750 nickel belongs to the nickel alloys. They have 53% of their average alloy composition in common. There are 29 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 N07750 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
25
Fatigue Strength, MPa 190
520
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 480
1200
Tensile Strength: Yield (Proof), MPa 200
820

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 32
60
Density, g/cm3 8.1
8.4
Embodied Carbon, kg CO2/kg material 5.6
10
Embodied Energy, MJ/kg 78
150
Embodied Water, L/kg 210
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
270
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 17
40
Strength to Weight: Bending, points 17
30
Thermal Diffusivity, mm2/s 5.6
3.3
Thermal Shock Resistance, points 12
36

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 19 to 22
14 to 17
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
5.0 to 9.0
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
70 to 77.7
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
2.3 to 2.8