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AWS ENiCu-7 vs. SAE-AISI S7 Steel

AWS ENiCu-7 belongs to the nickel alloys classification, while SAE-AISI S7 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS ENiCu-7 and the bottom bar is SAE-AISI S7 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 62
74
Tensile Strength: Ultimate (UTS), MPa 550
670 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1270
1460
Melting Onset (Solidus), °C 1230
1420
Specific Heat Capacity, J/kg-K 430
470
Thermal Conductivity, W/m-K 21
40
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 50
5.0
Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 8.0
2.3
Embodied Energy, MJ/kg 110
31
Embodied Water, L/kg 250
65

Common Calculations

Stiffness to Weight: Axial, points 10
14
Stiffness to Weight: Bending, points 21
25
Strength to Weight: Axial, points 17
24 to 72
Strength to Weight: Bending, points 17
22 to 46
Thermal Diffusivity, mm2/s 5.5
11
Thermal Shock Resistance, points 18
22 to 66

Alloy Composition

Aluminum (Al), % 0 to 0.75
0
Carbon (C), % 0 to 0.1
0.45 to 0.55
Chromium (Cr), % 0
3.0 to 3.5
Copper (Cu), % 20.6 to 38
0 to 0.25
Iron (Fe), % 0 to 2.5
91.6 to 94.9
Manganese (Mn), % 0 to 4.0
0.2 to 0.9
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 62 to 69
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 1.5
0.2 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 1.0
0
Vanadium (V), % 0
0 to 0.3
Residuals, % 0 to 0.5
0