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ACI-ASTM CK20 Steel vs. EN 2.4608 Nickel

ACI-ASTM CK20 steel belongs to the iron alloys classification, while EN 2.4608 nickel belongs to the nickel alloys. They have 65% of their average alloy composition in common. 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 ACI-ASTM CK20 steel and the bottom bar is EN 2.4608 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 37
34
Fatigue Strength, MPa 220
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
81
Tensile Strength: Ultimate (UTS), MPa 530
620
Tensile Strength: Yield (Proof), MPa 260
270

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 14
11
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
55
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.4
8.4
Embodied Energy, MJ/kg 62
120
Embodied Water, L/kg 190
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
170
Resilience: Unit (Modulus of Resilience), kJ/m3 170
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 3.7
2.9
Thermal Shock Resistance, points 13
16

Alloy Composition

Carbon (C), % 0 to 0.2
0.030 to 0.080
Chromium (Cr), % 23 to 27
24 to 26
Cobalt (Co), % 0
2.5 to 4.0
Iron (Fe), % 46.7 to 58
11.4 to 23.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.5 to 4.0
Nickel (Ni), % 19 to 22
44 to 47
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0.7 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.015
Tungsten (W), % 0
2.5 to 4.0