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AWS BNi-2 vs. C21000 Brass

AWS BNi-2 belongs to the nickel alloys classification, while C21000 brass belongs to the copper alloys. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS BNi-2 and the bottom bar is C21000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Poisson's Ratio 0.3
0.34
Shear Modulus, GPa 68
43
Tensile Strength: Ultimate (UTS), MPa 440
240 to 450

Thermal Properties

Latent Heat of Fusion, J/g 360
200
Melting Completion (Liquidus), °C 1000
1070
Melting Onset (Solidus), °C 970
1050
Specific Heat Capacity, J/kg-K 490
390
Thermal Expansion, µm/m-K 11
18

Otherwise Unclassified Properties

Base Metal Price, % relative 55
30
Density, g/cm3 8.2
8.8
Embodied Carbon, kg CO2/kg material 9.3
2.6
Embodied Energy, MJ/kg 130
42
Embodied Water, L/kg 230
310

Common Calculations

Stiffness to Weight: Axial, points 12
7.2
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 15
7.4 to 14
Strength to Weight: Bending, points 16
9.6 to 15
Thermal Shock Resistance, points 16
8.1 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
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
94 to 96
Iron (Fe), % 2.5 to 3.5
0 to 0.050
Lead (Pb), % 0
0 to 0.030
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
3.7 to 6.0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.2