
C27451
C27451 is a lead-free material designed for applications involving drinking water. It’s suitable for scenarios without high mechanical stresses. This ductile alloy is well-matched for processes like blanking, riveting, bending, hot forging and pressing, hot heading, as well as for manufacturing large nuts & bolts and brazing rods.
CHEMICAL COMPOSITION
Elements | Min (%) | Max (%) |
Cu | 61.00 | 65.00 |
Pb | – | 0.25 |
Fe | – | 0.35 |
Total Others | – | 0.50 |
Zn | Remainder |
MECHANICAL PROPERTIES ACCORDING TO ASTM B124
Mechanical property requirement, if any, are to be established by agreement between the manufacturer and the purchaser.
PHYSICAL PROPERTIES | |
Melting Point – Liquidus°F | 1680 |
Melting Point – Solidus°F | 1650 |
Densitylb/cu in. at 68°F | 0.31 |
Specific Gravity | 8.44 |
Electrical Conductivity% IACS at 68°F | 22.8 |
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 67 |
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 11.4 |
Specific Heat CapacityBtu/ lb /°F at 68°F | 0.09 |
Modulus of Elasticity in Tensionksi | 15000 |
Modulus of Rigidityksi | 5500 |
Magnetic Permeability | 1 |
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 | Excellent |
Forgeability Rating | 95 |