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EN 1.4807 Stainless Steel vs. AWS ERNiCu-7

EN 1.4807 stainless steel belongs to the iron alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. They have a modest 38% 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 EN 1.4807 stainless steel and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
160
Elongation at Break, % 4.5
34
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 75
61
Tensile Strength: Ultimate (UTS), MPa 480
550

Thermal Properties

Latent Heat of Fusion, J/g 320
280
Melting Completion (Liquidus), °C 1390
1280
Melting Onset (Solidus), °C 1350
1240
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 12
20
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 39
50
Density, g/cm3 8.0
8.7
Embodied Carbon, kg CO2/kg material 6.8
8.5
Embodied Energy, MJ/kg 97
120
Embodied Water, L/kg 190
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17
18
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 3.2
5.3
Thermal Shock Resistance, points 12
19

Alloy Composition

Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0.3 to 0.5
0 to 0.15
Chromium (Cr), % 17 to 20
0
Copper (Cu), % 0
18.3 to 36.5
Iron (Fe), % 36.6 to 46.7
0 to 2.5
Manganese (Mn), % 0 to 2.0
0 to 4.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 34 to 36
62 to 69
Niobium (Nb), % 1.0 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 1.0 to 2.5
0 to 1.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
1.5 to 3.0
Residuals, % 0
0 to 0.5