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ACI-ASTM CK20 Steel vs. Grade TDCrV Steel

Both ACI-ASTM CK20 steel and grade TDCrV steel are iron alloys. They have 54% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
520
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 530
1730

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
49
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.9
Embodied Energy, MJ/kg 62
26
Embodied Water, L/kg 190
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
61
Strength to Weight: Bending, points 19
41
Thermal Diffusivity, mm2/s 3.7
13
Thermal Shock Resistance, points 13
51

Alloy Composition

Carbon (C), % 0 to 0.2
0.62 to 0.72
Chromium (Cr), % 23 to 27
0.4 to 0.6
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 46.7 to 58
97.8 to 98.8
Manganese (Mn), % 0 to 2.0
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0.15 to 0.3
Sulfur (S), % 0 to 0.040
0 to 0.020
Vanadium (V), % 0
0.15 to 0.25