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ACI-ASTM CK20 Steel vs. Grade CZ100 Nickel

ACI-ASTM CK20 steel belongs to the iron alloys classification, while grade CZ100 nickel belongs to the nickel alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is grade CZ100 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 37
11
Fatigue Strength, MPa 220
68
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
69
Tensile Strength: Ultimate (UTS), MPa 530
390
Tensile Strength: Yield (Proof), MPa 260
140

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1400
1350
Melting Onset (Solidus), °C 1430
1300
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 14
73
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
19

Otherwise Unclassified Properties

Base Metal Price, % relative 25
60
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 4.4
10
Embodied Energy, MJ/kg 62
140
Embodied Water, L/kg 190
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
35
Resilience: Unit (Modulus of Resilience), kJ/m3 170
54
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 19
12
Strength to Weight: Bending, points 19
14
Thermal Diffusivity, mm2/s 3.7
19
Thermal Shock Resistance, points 13
14

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 1.0
Chromium (Cr), % 23 to 27
0
Copper (Cu), % 0
0 to 1.3
Iron (Fe), % 46.7 to 58
0 to 3.0
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
95 to 100
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.030