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Nickel 22 vs. ACI-ASTM CA40 Steel

Nickel 22 belongs to the nickel alloys classification, while ACI-ASTM CA40 steel belongs to the iron alloys. 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 nickel 22 and the bottom bar is ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 49
10
Fatigue Strength, MPa 330
460
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 84
76
Tensile Strength: Ultimate (UTS), MPa 790
910
Tensile Strength: Yield (Proof), MPa 360
860

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Maximum Temperature: Mechanical, °C 990
750
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1360
1500
Specific Heat Capacity, J/kg-K 430
480
Thermal Conductivity, W/m-K 10
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 70
7.5
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 12
2.0
Embodied Energy, MJ/kg 170
28
Embodied Water, L/kg 300
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
89
Resilience: Unit (Modulus of Resilience), kJ/m3 300
1910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 22
25
Strength to Weight: Axial, points 25
33
Strength to Weight: Bending, points 21
27
Thermal Diffusivity, mm2/s 2.7
6.7
Thermal Shock Resistance, points 24
33

Alloy Composition

Carbon (C), % 0 to 0.015
0.2 to 0.4
Chromium (Cr), % 20 to 22.5
11.5 to 14
Cobalt (Co), % 0 to 2.5
0
Iron (Fe), % 2.0 to 6.0
81.5 to 88.3
Manganese (Mn), % 0 to 0.015
0 to 1.0
Molybdenum (Mo), % 12.5 to 14.5
0 to 0.5
Nickel (Ni), % 50.8 to 63
0 to 1.0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.080
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.040
Tungsten (W), % 2.5 to 3.5
0
Vanadium (V), % 0 to 0.35
0