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ACI-ASTM CT15C Steel vs. Grade TDSiCr Steel

Both ACI-ASTM CT15C steel and grade TDSiCr steel are iron alloys. They have 47% 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 TDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
590
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
1950

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1080
410
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
46
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.2
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.1
1.5
Embodied Energy, MJ/kg 88
20
Embodied Water, L/kg 190
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
70
Strength to Weight: Bending, points 17
45
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 12
58

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.5 to 0.6
Chromium (Cr), % 19 to 21
0.5 to 0.8
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 40.3 to 49.2
96.6 to 97.8
Manganese (Mn), % 0.15 to 1.5
0.5 to 0.9
Nickel (Ni), % 31 to 34
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.15 to 1.5
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.020