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K93050 Alloy vs. ACI-ASTM CK20 Steel

Both K93050 alloy and ACI-ASTM CK20 steel are iron alloys. They have 74% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is K93050 alloy and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 500 to 680
530

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 26
25
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.7
4.4
Embodied Energy, MJ/kg 65
62
Embodied Water, L/kg 120
190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 17 to 23
19
Strength to Weight: Bending, points 17 to 21
19
Thermal Shock Resistance, points 16 to 21
13

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.2
Chromium (Cr), % 0 to 0.25
23 to 27
Cobalt (Co), % 0 to 0.5
0
Iron (Fe), % 61.4 to 63.9
46.7 to 58
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 36
19 to 22
Phosphorus (P), % 0 to 0.020
0 to 0.040
Selenium (Se), % 0.15 to 0.3
0
Silicon (Si), % 0 to 0.35
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040