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ACI-ASTM CK20 Steel vs. N07773 Nickel

ACI-ASTM CK20 steel belongs to the iron alloys classification, while N07773 nickel belongs to the nickel alloys. They have 60% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is N07773 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 37
40
Fatigue Strength, MPa 220
220
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 530
710
Tensile Strength: Yield (Proof), MPa 260
270

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1400
1510
Melting Onset (Solidus), °C 1430
1460
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.4
13
Embodied Energy, MJ/kg 62
180
Embodied Water, L/kg 190
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
220
Resilience: Unit (Modulus of Resilience), kJ/m3 170
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 13
20

Alloy Composition

Aluminum (Al), % 0
0 to 2.0
Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 23 to 27
18 to 27
Iron (Fe), % 46.7 to 58
0 to 32
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 5.5
Nickel (Ni), % 19 to 22
45 to 60
Niobium (Nb), % 0
2.5 to 6.0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0 to 2.0
Tungsten (W), % 0
0 to 6.0