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ACI-ASTM CK20 Steel vs. N06650 Nickel

ACI-ASTM CK20 steel belongs to the iron alloys classification, while N06650 nickel belongs to the nickel alloys. They have 55% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is N06650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 37
50
Fatigue Strength, MPa 220
420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
82
Tensile Strength: Ultimate (UTS), MPa 530
900
Tensile Strength: Yield (Proof), MPa 260
460

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1400
1500
Melting Onset (Solidus), °C 1430
1450
Specific Heat Capacity, J/kg-K 480
440
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
60
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 4.4
10
Embodied Energy, MJ/kg 62
140
Embodied Water, L/kg 190
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
380
Resilience: Unit (Modulus of Resilience), kJ/m3 170
490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
29
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 13
24

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.5
Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 23 to 27
19 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 46.7 to 58
12 to 16
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
9.5 to 12.5
Nickel (Ni), % 19 to 22
44.4 to 58.9
Niobium (Nb), % 0
0.050 to 0.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Tungsten (W), % 0
0.5 to 2.5