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AWS ENiCu-7 vs. EN 1.4859 Stainless Steel

AWS ENiCu-7 belongs to the nickel alloys classification, while EN 1.4859 stainless steel belongs to the iron alloys. They have a modest 35% 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 AWS ENiCu-7 and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
200
Elongation at Break, % 34
23
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 62
76
Tensile Strength: Ultimate (UTS), MPa 550
490

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Melting Completion (Liquidus), °C 1270
1410
Melting Onset (Solidus), °C 1230
1360
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 50
36
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 8.0
6.2
Embodied Energy, MJ/kg 110
88
Embodied Water, L/kg 250
190

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 5.5
3.4
Thermal Shock Resistance, points 18
11

Alloy Composition

Aluminum (Al), % 0 to 0.75
0
Carbon (C), % 0 to 0.1
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 20.6 to 38
0
Iron (Fe), % 0 to 2.5
40.3 to 49
Manganese (Mn), % 0 to 4.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 62 to 69
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 1.5
0.5 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 1.0
0
Residuals, % 0 to 0.5
0