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ACI-ASTM CK20 Steel vs. EN 1.4869 Casting Alloy

ACI-ASTM CK20 steel belongs to the iron alloys classification, while EN 1.4869 casting alloy belongs to the nickel alloys. They have 65% of their average alloy composition in common. There are 27 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 EN 1.4869 casting alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 37
5.7
Fatigue Strength, MPa 220
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 530
540
Tensile Strength: Yield (Proof), MPa 260
310

Thermal Properties

Latent Heat of Fusion, J/g 310
330
Maximum Temperature: Mechanical, °C 1100
1200
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1430
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 14
10
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
70
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 4.4
7.7
Embodied Energy, MJ/kg 62
110
Embodied Water, L/kg 190
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
26
Resilience: Unit (Modulus of Resilience), kJ/m3 170
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
17
Thermal Diffusivity, mm2/s 3.7
2.6
Thermal Shock Resistance, points 13
14

Alloy Composition

Carbon (C), % 0 to 0.2
0.45 to 0.55
Chromium (Cr), % 23 to 27
24 to 26
Cobalt (Co), % 0
14 to 16
Iron (Fe), % 46.7 to 58
11.4 to 23.6
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
33 to 37
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
1.0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
4.0 to 6.0