C92900 Leaded Nickel Tin Bronze
Copper Alloy No. C92900
Leaded Nickel Tin Bronze CDA 929 ASTM B 505
Chemical Composition % by weight
Leaded Nickel Tin Bronze CDA 929 ASTM B 505
Chemical Composition % by weight
Element | Nominal | Minimum | Maximum |
Aluminum | - | - | .005 |
Antimony | - | - | .25 |
Copper | 84 | 82 | 86 |
Iron | - | - | .20 |
Lead | 2.6 | 2 | 3.2 |
Nickel | 3.4 | 2.8 | 4 |
Phosphorus | - | - | .50 |
Silicon | - | - | .005 |
Sulfur | - | - | .05 |
Tin | 10 | 9 | 11 |
Zinc | - | - | .25 |
Applications
Gear, wear plates and guides, cams.
Mechanical Properties
M07 - As Continuous Cast
Hardness* | Brinell Hardness (500 kg load) | 80 |
Tensile Strength** | KSI | 45 min |
Yield Strength ** | KSI (0.5% Ext. under load) | 25 min |
Elongation** | % in 2 inch | 8 min |
**Test values are nominal approximations and depend on specimen size and orientation.
Physical Properties
Thermal Conductivity | BTU/ (sq ft-ft-hr-F) | 33.6 |
Specific Heat | BTU/lb/ºF @ 68F | .09 |
Thermal Expansion | Per °F from 68 F to 392 F | .0000095 |
Density | lb/cu in @ 68 F | .320 |
Electrical Conductivity* (Annealed) | % IACS @ 68 F | 9.2 |
Modulus of Elasticity | KSI | 14,000 |
*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) | 40 |
Suitability for being joined by: | Soldering/Excellent |
Brazing/Good* | |
Oxyacetylene Welding/Not Recommended | |
Gas Shielded Arc Welding/Not Recommended | |
Coated Metal Arc Welding/Not Recommended |