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AWS ERNiCu-7 vs. C37100 Brass

AWS ERNiCu-7 belongs to the nickel alloys classification, while C37100 brass belongs to the copper alloys. They have a modest 28% 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 (6, in this case) are not shown.

For each property being compared, the top bar is AWS ERNiCu-7 and the bottom bar is C37100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
100
Elongation at Break, % 34
8.0 to 40
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 61
40
Tensile Strength: Ultimate (UTS), MPa 550
370 to 520

Thermal Properties

Latent Heat of Fusion, J/g 280
170
Melting Completion (Liquidus), °C 1280
900
Melting Onset (Solidus), °C 1240
890
Specific Heat Capacity, J/kg-K 440
380
Thermal Conductivity, W/m-K 20
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
30

Otherwise Unclassified Properties

Base Metal Price, % relative 50
23
Density, g/cm3 8.7
8.0
Embodied Carbon, kg CO2/kg material 8.5
2.7
Embodied Energy, MJ/kg 120
45
Embodied Water, L/kg 250
320

Common Calculations

Stiffness to Weight: Axial, points 10
7.2
Stiffness to Weight: Bending, points 21
20
Strength to Weight: Axial, points 18
13 to 18
Strength to Weight: Bending, points 17
14 to 18
Thermal Diffusivity, mm2/s 5.3
39
Thermal Shock Resistance, points 19
12 to 17

Alloy Composition

Aluminum (Al), % 0 to 1.3
0
Carbon (C), % 0 to 0.15
0
Copper (Cu), % 18.3 to 36.5
58 to 62
Iron (Fe), % 0 to 2.5
0 to 0.15
Lead (Pb), % 0
0.6 to 1.2
Manganese (Mn), % 0 to 4.0
0
Nickel (Ni), % 62 to 69
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.3
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 1.5 to 3.0
0
Zinc (Zn), % 0
36.3 to 41.4
Residuals, % 0
0 to 0.4