C97600 Nickel Silver Bronze
Copper Alloy No. C97600
Nickel Silver CDA 976 , Dairy Metal , 20% Leaded Nickel Silver ASTM B 505 , ASTM B 271
Chemical Composition % by weight
Nickel Silver CDA 976 , Dairy Metal , 20% Leaded Nickel Silver ASTM B 505 , ASTM B 271
Chemical Composition % by weight
Element | Nominal | Minimum | Maximum |
Aluminum | - | - | .005 |
Antimony | - | - | .25 |
Copper | 65 | 63 | 67 |
Iron | - | - | 1.5 |
Lead | 4 | 3 | 5 |
Manganese | - | - | 1 |
Nickel | 20.3 | 19 | 21.5 |
Phosphorus | - | - | .05 |
Silicon | - | - | .15 |
Sulfur | - | - | .08 |
Tin | 4 | 3.5 | 4.5 |
Zinc | 6 | 3 | 9 |
Applications for Castings
Marine castings, sanitary fittings, ornamental hardware, valves and pumps.
Mechanical Properties
Typical for 3" dia. continuous cast bar
Hardness* | Brinell Hardness (500 kg load) | 80 |
Tensile Strength** | KSI | 45 |
Yield Strength ** | KSI (0.5% Ext. under load) | 24 |
Elongation** | % in 2 inch | 20 |
**Test values are nominal approximations and depend on specimen size and orientation.
Physical Properties
Thermal Conductivity | BTU/ (sq ft-ft-hr-F) | 13 |
Specific Heat | BTU/lb/ºF @ 68F | .09 |
Thermal Expansion | Per °F from 68 F to 572 F | .0000093 |
Density | lb/cu in @ 68 F | .321 |
Electrical Conductivity* (Annealed) | % IACS @ 68 F | 5 |
Modulus of Elasticity | KSI | 19,000 |
*Volume basis
Fabrication Practices
Stress relieving temperature | 500 F or 260 C |
Time at temperature | 1 hour per inch of section thickness |
Responds to heat treatment | No |
Machinability rating (Free Cutting Brass=100) | 70 |
Suitability for being joined by: | Soldering/Excellent |
Brazing/Excellent | |
Oxyacetylene Welding/Not Recommended | |
Carbon Arc Welding/Not Recommended | |
Gas Shielded Arc Welding/Not Recommended | |
Coated Metal Arc Welding/Not Recommended |