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Grade TDC Steel vs. C71520 Copper-nickel

Grade TDC steel belongs to the iron alloys classification, while C71520 copper-nickel belongs to the copper alloys. There are 24 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 TDC steel and the bottom bar is C71520 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
51
Tensile Strength: Ultimate (UTS), MPa 1700
370 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 400
260
Melting Completion (Liquidus), °C 1450
1170
Melting Onset (Solidus), °C 1410
1120
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 51
32
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
5.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
5.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
40
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.4
5.0
Embodied Energy, MJ/kg 19
73
Embodied Water, L/kg 47
280

Common Calculations

Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 60
12 to 18
Strength to Weight: Bending, points 40
13 to 17
Thermal Diffusivity, mm2/s 14
8.9
Thermal Shock Resistance, points 50
12 to 19

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.050
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
65 to 71.6
Iron (Fe), % 98 to 99.4
0.4 to 1.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0.5 to 1.2
0 to 1.0
Nickel (Ni), % 0
28 to 33
Phosphorus (P), % 0 to 0.020
0 to 0.2
Silicon (Si), % 0.1 to 0.35
0
Sulfur (S), % 0 to 0.020
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5