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AWS BNi-4 vs. C68800 Brass

AWS BNi-4 belongs to the nickel alloys classification, while C68800 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-4 and the bottom bar is C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
110
Poisson's Ratio 0.31
0.32
Shear Modulus, GPa 67
41
Tensile Strength: Ultimate (UTS), MPa 430
570 to 890

Thermal Properties

Latent Heat of Fusion, J/g 340
190
Melting Completion (Liquidus), °C 1070
960
Melting Onset (Solidus), °C 980
950
Specific Heat Capacity, J/kg-K 470
400
Thermal Expansion, µm/m-K 11
19

Otherwise Unclassified Properties

Base Metal Price, % relative 60
26
Density, g/cm3 8.5
8.2
Embodied Carbon, kg CO2/kg material 10
2.8
Embodied Energy, MJ/kg 140
48
Embodied Water, L/kg 220
350

Common Calculations

Stiffness to Weight: Axial, points 12
7.3
Stiffness to Weight: Bending, points 22
19
Strength to Weight: Axial, points 14
19 to 30
Strength to Weight: Bending, points 15
19 to 25
Thermal Shock Resistance, points 16
19 to 30

Alloy Composition

Aluminum (Al), % 0 to 0.050
3.0 to 3.8
Boron (B), % 1.5 to 2.2
0
Carbon (C), % 0 to 0.060
0
Cobalt (Co), % 0 to 0.1
0.25 to 0.55
Copper (Cu), % 0
70.8 to 75.5
Iron (Fe), % 0 to 1.5
0 to 0.2
Lead (Pb), % 0
0 to 0.050
Nickel (Ni), % 91.4 to 95.5
0
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 3.0 to 4.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0
21.3 to 24.1
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.5