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AISI 384 Stainless Steel vs. AWS ENiCu-7

AISI 384 stainless steel belongs to the iron alloys classification, while AWS ENiCu-7 belongs to the nickel alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 384 stainless steel and the bottom bar is AWS ENiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
160
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
62
Tensile Strength: Ultimate (UTS), MPa 480
550

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Melting Completion (Liquidus), °C 1420
1270
Melting Onset (Solidus), °C 1380
1230
Specific Heat Capacity, J/kg-K 480
430
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
50
Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 3.7
8.0
Embodied Energy, MJ/kg 52
110
Embodied Water, L/kg 150
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 24
21
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
17
Thermal Diffusivity, mm2/s 4.3
5.5
Thermal Shock Resistance, points 11
18

Alloy Composition

Aluminum (Al), % 0
0 to 0.75
Carbon (C), % 0 to 0.040
0 to 0.1
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
20.6 to 38
Iron (Fe), % 60.9 to 68
0 to 2.5
Manganese (Mn), % 0 to 2.0
0 to 4.0
Nickel (Ni), % 17 to 19
62 to 69
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0 to 1.0
Residuals, % 0
0 to 0.5