C94800 Leaded Nickel Tin Bronze
Copper Alloy No. C94800
Leaded Nickel Tin Bronze CDA 948 ASTM B 505
Chemical Composition % by weight
Leaded Nickel Tin Bronze CDA 948 ASTM B 505
Chemical Composition % by weight
Element | Nominal | Minimum | Maximum |
Aluminum | - | - | .005 |
Antimony | - | - | .15 |
Copper | 86.5 | 84 | 89 |
Iron | - | - | .25 |
Lead | .70 | .30 | 1 |
Manganese | - | - | .20 |
Nickel | 5.3 | 4.5 | 6 |
Phosphorus | - | - | .05 |
Silicon | - | - | .005 |
Sulfur | - | - | .05 |
Tin | 5 | 4.5 | 6 |
Zinc | 1.8 | 1 | 2.5 |
Applications
Structural castings, gear components, motion translation devices, machinery parts, bearings.
M07 - As Continuous Cast
Hardness* | Brinell Hardness (500 kg load) | 80 |
Tensile Strength** | KSI | 40 min |
Yield Strength ** | KSI (0.5% Ext. under load) | 20 min |
Elongation** | % in 2 inch | 20 min |
**Test values are nominal approximations and depend on specimen size and orientation.
Physical Properties
Thermal Conductivity | BTU/ (sq ft-ft-hr-F) | 22.3 |
Specific Heat | BTU/lb/ºF @ 68F | .09 |
Thermal Expansion | Per °F from 68 F to 572 F | .000011 |
Density | lb/cu in @ 68 F | .320 |
Electrical Conductivity* (Annealed) | % IACS @ 68 F | 12 |
Modulus of Elasticity | KSI | 15,000 |
*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 | Yes |
Machinability rating (Free Cutting Brass=100) | 50 |
Suitability for being joined by: | Soldering/Excellent |
Brazing/Good* | |
Oxyacetylene Welding/Not Recommended | |
Carbon Arc Welding/Not Recommended | |
Gas Shielded Arc Welding/Not Recommended | |
Coated Metal Arc Welding/Not Recommended |