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ACI-ASTM CT15C Steel vs. Grade TDC Steel

Both ACI-ASTM CT15C steel and grade TDC steel are iron alloys. They have 46% 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 CT15C steel and the bottom bar is grade TDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
510
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 500
1700

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1080
400
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.1
1.4
Embodied Energy, MJ/kg 88
19
Embodied Water, L/kg 190
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
60
Strength to Weight: Bending, points 17
40
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
50

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.6 to 0.75
Chromium (Cr), % 19 to 21
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 40.3 to 49.2
98 to 99.4
Manganese (Mn), % 0.15 to 1.5
0.5 to 1.2
Nickel (Ni), % 31 to 34
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 1.5
0.1 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.020