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ACI-ASTM CN3M Steel vs. Nickel 825

ACI-ASTM CN3M steel belongs to the iron alloys classification, while nickel 825 belongs to the nickel alloys. They have 80% of their average alloy composition in common. There are 30 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 CN3M steel and the bottom bar is nickel 825.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 150
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 500
650
Tensile Strength: Yield (Proof), MPa 190
260

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 13
11
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
1.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
41
Density, g/cm3 8.1
8.2
Embodied Carbon, kg CO2/kg material 5.9
7.2
Embodied Energy, MJ/kg 80
100
Embodied Water, L/kg 200
230

Common Calculations

PREN (Pitting Resistance) 38
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
180
Resilience: Unit (Modulus of Resilience), kJ/m3 89
170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 3.4
2.9
Thermal Shock Resistance, points 11
17

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 20 to 22
19.5 to 23.5
Copper (Cu), % 0
1.5 to 3.0
Iron (Fe), % 42.4 to 52.5
22 to 37.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.5 to 5.5
2.5 to 3.5
Nickel (Ni), % 23 to 27
38 to 46
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0 to 0.050
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.6 to 1.2