C27000
C27000, which is also referred to as C2700, C270, 270, 2700, and 27000, belongs to a family of brass alloys known for their relatively robust corrosion resistance, moderately high strength, and, in certain variations, excellent ductility. These alloys come in a variety of forms, including rod, bar, sheet, plate, and more.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 63.00 | 68.50 |
| Pb | – | 0.09 |
| Fe | – | 0.07 |
| Total Others | – | 0.30 Max |
| Zn | Remainder | |
| (1) Cu + Sum of Named Elements 99.7% min. | ||
MECHANICAL PROPERTIES ACCORDING TO UNS J463 (AS PER TEMPER HO2)
| Range (mm) | From | To | UTS Min (MPa) | UTS Max (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 1.5 | 12 | 545 | 650 | – | – | – | – |
| Hex (A/F) | 3 | 12 | 545 | 650 | – | – | – | – |
| Square (A/F) | 3 | 12 | 545 | 650 | – | – | – | – |
| PHYSICAL PROPERTIES | |
| Melting Point – Liquidus°F | 1710 |
| Melting Point – Solidus°F | 1660 |
| Density lb/cu in. at 68°F | 0.306 |
| Specific Gravity | 8.47 |
| Electrical Conductivity % IACS at 68°F | 27 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F | 67 |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 11.3 |
| Specific Heat Capacity Btu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tension ksi | 15000 |
| Modulus of Rigidity ksi | 5600 |
| FABRICATION PROPERTIES | |
| Technique | Suitability |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Fair |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Good |
| Seam Weld | Not Recommended |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Poor |
| Machinability Rating | 30 |
