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Grade TDCrV Steel vs. ACI-ASTM CF20 Steel

Both grade TDCrV steel and ACI-ASTM CF20 steel are iron alloys. They have 71% 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 grade TDCrV steel and the bottom bar is ACI-ASTM CF20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 520
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 1730
530

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
970
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 49
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
3.1
Embodied Energy, MJ/kg 26
44
Embodied Water, L/kg 49
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 61
19
Strength to Weight: Bending, points 41
19
Thermal Diffusivity, mm2/s 13
4.3
Thermal Shock Resistance, points 51
11

Alloy Composition

Carbon (C), % 0.62 to 0.72
0 to 0.2
Chromium (Cr), % 0.4 to 0.6
18 to 21
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 97.8 to 98.8
64.2 to 74
Manganese (Mn), % 0.5 to 0.9
0 to 1.5
Nickel (Ni), % 0
8.0 to 11
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.3
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040
Vanadium (V), % 0.15 to 0.25
0