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C68700 Brass vs. AWS BNi-2

C68700 brass belongs to the copper alloys classification, while AWS BNi-2 belongs to the nickel alloys. There are 19 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 C68700 brass and the bottom bar is AWS BNi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
180
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 41
68
Tensile Strength: Ultimate (UTS), MPa 390
440

Thermal Properties

Latent Heat of Fusion, J/g 190
360
Melting Completion (Liquidus), °C 970
1000
Melting Onset (Solidus), °C 930
970
Specific Heat Capacity, J/kg-K 400
490
Thermal Expansion, µm/m-K 19
11

Otherwise Unclassified Properties

Base Metal Price, % relative 26
55
Density, g/cm3 8.3
8.2
Embodied Carbon, kg CO2/kg material 2.8
9.3
Embodied Energy, MJ/kg 46
130
Embodied Water, L/kg 340
230

Common Calculations

Stiffness to Weight: Axial, points 7.3
12
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 13
15
Strength to Weight: Bending, points 14
16
Thermal Shock Resistance, points 13
16

Alloy Composition

Aluminum (Al), % 1.8 to 2.5
0 to 0.050
Arsenic (As), % 0.020 to 0.1
0
Boron (B), % 0
2.8 to 3.5
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
6.0 to 8.0
Cobalt (Co), % 0
0 to 0.1
Copper (Cu), % 76 to 79
0
Iron (Fe), % 0 to 0.060
2.5 to 3.5
Lead (Pb), % 0 to 0.070
0
Nickel (Ni), % 0
79.1 to 84.8
Phosphorus (P), % 0
0 to 0.020
Selenium (Se), % 0
0 to 0.0050
Silicon (Si), % 0
4.0 to 5.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 17.8 to 22.2
0
Zirconium (Zr), % 0
0 to 0.050
Residuals, % 0
0 to 0.5