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AWS ERNiCu-7 vs. Grade TDC Steel

AWS ERNiCu-7 belongs to the nickel alloys classification, while grade TDC steel belongs to the iron 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 AWS ERNiCu-7 and the bottom bar is grade TDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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