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ACI-ASTM CK20 Steel vs. Nickel 30

ACI-ASTM CK20 steel belongs to the iron alloys classification, while nickel 30 belongs to the nickel alloys. They have 61% 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 nickel 30.

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
82
Tensile Strength: Ultimate (UTS), MPa 530
660
Tensile Strength: Yield (Proof), MPa 260
270

Thermal Properties

Latent Heat of Fusion, J/g 310
320
Maximum Temperature: Mechanical, °C 1100
1020
Melting Completion (Liquidus), °C 1400
1480
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 14
10
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
60
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.4
9.4
Embodied Energy, MJ/kg 62
130
Embodied Water, L/kg 190
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
180
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
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 3.7
2.7
Thermal Shock Resistance, points 13
18

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 23 to 27
28 to 31.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0
1.0 to 2.4
Iron (Fe), % 46.7 to 58
13 to 17
Manganese (Mn), % 0 to 2.0
0 to 0.030
Molybdenum (Mo), % 0 to 0.5
4.0 to 6.0
Nickel (Ni), % 19 to 22
30.2 to 52.2
Niobium (Nb), % 0
0.3 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.020
Tungsten (W), % 0
1.5 to 4.0