C23000 brass is the most durable of all metals for commercial water pipe in the practical price range. Excellent for its resistance to dezincification and season cracking for which the high copper brasses are known. Moderate strength and good retention of spring properties. Specified for underground service lines since it offers greatest corrosion resistance to all types of potable waters. Popular as an outdoor metal and has found for itself a very important place in modern architecture. Also known 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 |
TYPICAL USES
- Architecture
- Builders Hardware
- Consumer
- Electrical
- Fasteners
- Industrial
- Plumbing
