C23000
C23000 brass stands out as the most durable among commercially available metals for water pipes within a practical price range. Its exceptional resistance to dezincification and season cracking, well-known characteristics of high copper brasses, make it an excellent choice. This brass alloy offers moderate strength along with the ability to retain good spring properties. It’s the preferred choice for underground service lines, providing unmatched corrosion resistance against various types of potable water. Beyond its utility, it has become popular in outdoor applications and holds a significant place in modern architectural design, sometimes referred to as Nordic Brass.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 84.00 | 86.00 |
| 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 | – | – | – |
| PHYSICAL PROPERTIES | |
| Melting Point – Liquidus°F | 1880 |
| Melting Point – Solidus°F | 1810 |
| Density lb/cu in. at 68°F | 0.316 |
| Specific Gravity | 8.75 |
| Electrical Conductivity % IACS at 68°F | 37 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F | 92 |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 10.4 |
| Specific Heat Capacity Btu/ lb /°F at 68°F | 0.09 |
| Modulus 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 |
