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Grade TDC Steel vs. C71580 Copper-nickel

Grade TDC steel belongs to the iron alloys classification, while C71580 copper-nickel belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade TDC steel and the bottom bar is C71580 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
75
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
330

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 400
260
Melting Completion (Liquidus), °C 1450
1180
Melting Onset (Solidus), °C 1410
1120
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 51
39
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
4.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
4.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
41
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.4
5.1
Embodied Energy, MJ/kg 19
74
Embodied Water, L/kg 47
280

Common Calculations

Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 60
10
Strength to Weight: Bending, points 40
12
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 50
11

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.070
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
65.5 to 71
Iron (Fe), % 98 to 99.4
0 to 0.5
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.5 to 1.2
0 to 0.3
Nickel (Ni), % 0
29 to 33
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.1 to 0.35
0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.5