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Grade TDC Steel vs. AWS ERNiCu-7

Grade TDC steel belongs to the iron alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade TDC steel and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 80
61
Tensile Strength: Ultimate (UTS), MPa 1700
550

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Melting Completion (Liquidus), °C 1450
1280
Melting Onset (Solidus), °C 1410
1240
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 51
20
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
50
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 1.4
8.5
Embodied Energy, MJ/kg 19
120
Embodied Water, L/kg 47
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 60
18
Strength to Weight: Bending, points 40
17
Thermal Diffusivity, mm2/s 14
5.3
Thermal Shock Resistance, points 50
19

Alloy Composition

Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0.6 to 0.75
0 to 0.15
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
18.3 to 36.5
Iron (Fe), % 98 to 99.4
0 to 2.5
Manganese (Mn), % 0.5 to 1.2
0 to 4.0
Nickel (Ni), % 0
62 to 69
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0.1 to 0.35
0 to 1.3
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0
1.5 to 3.0
Residuals, % 0
0 to 0.5