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AWS ERNiCu-7 vs. EN 1.7139 Steel

AWS ERNiCu-7 belongs to the nickel alloys classification, while EN 1.7139 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCu-7 and the bottom bar is EN 1.7139 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
73
Tensile Strength: Ultimate (UTS), MPa 550
480 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1280
1460
Melting Onset (Solidus), °C 1240
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 50
2.2
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
51

Common Calculations

Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 18
17 to 49
Strength to Weight: Bending, points 17
17 to 35
Thermal Diffusivity, mm2/s 5.3
12
Thermal Shock Resistance, points 19
14 to 41

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0.14 to 0.19
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 18.3 to 36.5
0 to 0.25
Iron (Fe), % 0 to 2.5
96.8 to 98
Manganese (Mn), % 0 to 4.0
1.0 to 1.3
Nickel (Ni), % 62 to 69
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.3
0 to 0.3
Sulfur (S), % 0 to 0.015
0.020 to 0.040
Titanium (Ti), % 1.5 to 3.0
0
Residuals, % 0 to 0.5
0