C22000 Commercial bronze has excellent corrosion resistance. Excellent cold workability, good hot workability for blanking, coining, drawing, piercing and punching, shearing, spinning, squeezing and swaging, stamping heading and upsetting, roll threading and knurling, hot forging and pressing.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 89.00 | 91.00 |
| Pb | – | 0.05 |
| Fe | – | 0.05 |
| Total Others | – | 0.20 |
| Zn | Remainder |
Mechanical Properties According To ASTM B927 (As Per Temper HO2)
| Range (mm) | From | To | UTS Min (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 6 | 12 | 345 | 205 | 7 | – | – |
| 12 | 25 | 310 | 185 | 10 | – | – |
| 25 | 75 | 275 | 170 | 12 | – | – |
| Hex (A/F) | 6 | 12 | 345 | 205 | 7 | – | – |
| 12 | 25 | 310 | 185 | 10 | – | – |
| 25 | 70 | 275 | 170 | 12 | – | – |
| Octagon (A/F) | 6 | 12 | 345 | 205 | 7 | – | – |
| 12 | 25 | 310 | 185 | 10 | – | – |
| 25 | 60 | 275 | 170 | 12 | – | – |
| Physical Properties |
| Melting Point – Liquidus°F | 1910 |
| Melting Point – Solidus°F | 1870 |
| Density lb/cu in. at 68°F | 0.318 |
| Specific Gravity | 8.8 |
| Electrical Conductivity% IACS at 68°F | 44 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F | 109 |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 10.2 |
| 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 |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Good |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Not Recommended |
| Seam Weld | Not Recommended |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Good |
| Machinability Rating | 20 |
TYPICAL USES
- Architecture
- Builders Hardware
- Consumer
- Electrical
- Fasteners
- Industrial
- Marine
- Ordnance
- Plumbing
