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Grade TDC Steel vs. N06985 Nickel

Grade TDC steel belongs to the iron alloys classification, while N06985 nickel belongs to the nickel alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. 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 N06985 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 1700
690

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
990
Melting Completion (Liquidus), °C 1450
1350
Melting Onset (Solidus), °C 1410
1260
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 51
10
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.4
8.8
Embodied Energy, MJ/kg 19
120
Embodied Water, L/kg 47
270

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 60
23
Strength to Weight: Bending, points 40
21
Thermal Diffusivity, mm2/s 14
2.6
Thermal Shock Resistance, points 50
16

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.015
Chromium (Cr), % 0 to 0.3
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0 to 0.1
1.5 to 2.5
Iron (Fe), % 98 to 99.4
18 to 21
Manganese (Mn), % 0.5 to 1.2
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 0
35.9 to 53.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.1 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 0
0 to 1.5