Description
The alluring golden appearance of this metal explains why it’s known as “Jewellery Bronze.” This elegant brass can be polished and coated with lacquer to highlight its natural color or used as a foundation for gold plating. Its moderate strength, corrosion resistance, electrical conductivity, and capacity for deep drawing make C226 an excellent material choice for numerous design engineers working on practical applications, including hinges, doorknobs, and specific electrical connectors.
Chemical Composition
| Elements | Min (%) | Max (%) |
| Cu | 86.00 | 89.00 |
| Pb | – | 0.05 |
| Fe | – | 0.05 |
| Total others | – | 0.20 |
| Zn | Remainder |
Mechanical Properties According To ASTM B134 (As Per Temper HO2)
| Range (mm) |
From |
To |
UTS Min (MPa) |
UTS Max (MPa) |
PS Min |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
1.5 |
6 |
455 |
530 |
– |
– |
– |
– |
| Hex (A/F) |
3 |
6 |
455 |
530 |
– |
– |
– |
– |
| Square (A/F) |
3 |
6 |
455 |
530 |
– |
– |
– |
– |
Physcial Properties
| Melting Point – Liquidus°F |
1895 |
| Melting Point – Solidus°F |
1840 |
| Density lb/cu in. at 68°F |
0.317 |
| Specific Gravity |
8.78 |
| Electrical Conductivity% IACS at 68°F |
40 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F |
100 |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) |
10.3 |
| Specific Heat Capacity Btu/ lb /°F at 68°F |
0.09 |
| Modulus of Elasticity in Tension ksiModulus of Elasticity in Tension ksi |
17000 |
| Modulus of Rigidity ksi |
6400 |
Fabrication Properties
| Technique |
Suitability |
| Soldering |
Excellent |
| Brazing |
Excellent |
| Oxyacetylene Welding |
Good |
| Gas Shielded Arc Welding |
Good |
| Coated Metal Arc Welding |
Not Recommended |
| Spot Weld |
Fair |
| Seam Weld |
Not Recommended |
| Butt Weld |
Good |
| Capacity for Being Cold Worked |
Excellent |
| Capacity for Being Hot Formed |
Good |
| Machinability Rating |
30 |
