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ACI-ASTM CK20 Steel vs. Nickel 201

ACI-ASTM CK20 steel belongs to the iron alloys classification, while nickel 201 belongs to the nickel alloys. They have a modest 21% 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 (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is nickel 201.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
180
Elongation at Break, % 37
4.5 to 45
Fatigue Strength, MPa 220
42 to 210
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 78
70
Tensile Strength: Ultimate (UTS), MPa 530
390 to 660
Tensile Strength: Yield (Proof), MPa 260
80 to 510

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1430
1440
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 14
78
Thermal Expansion, µm/m-K 15
13

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
65
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 4.4
11
Embodied Energy, MJ/kg 62
150
Embodied Water, L/kg 190
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
25 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 170
17 to 720
Stiffness to Weight: Axial, points 14
11
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 19
12 to 20
Strength to Weight: Bending, points 19
13 to 19
Thermal Diffusivity, mm2/s 3.7
20
Thermal Shock Resistance, points 13
11 to 19

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.020
Chromium (Cr), % 23 to 27
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 46.7 to 58
0 to 0.4
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
99 to 100
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.010