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AWS BNi-2 vs. C68700 Brass

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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