Phosphor Bronze Alloy C51000
Copper Alloy No. C51000
Phosphor Bronze, 5%A CDA 510 Phosphor Bronze , ASTM B 139
Chemical Composition % by weight
Phosphor Bronze, 5%A CDA 510 Phosphor Bronze , ASTM B 139
Chemical Composition % by weight
Element | Nominal | Minimum | Maximum |
Copper | 94.8 | Rem. | Rem. |
Lead | - | - | .05 |
Iron | - | - | .10 |
Tin | 5 | 4.2 | 5.8 |
Zinc | - | - | .30 |
Phosphorus | .20 | .03 | .35 |
Applications
Clutch disks, cotter pins, diaphragms, fuse clips, fasteners, lock washers, sleeve bushings, springs, switch parts, chemical hardware, welding rods.
Common Fabrication Processes
Blanking, drawing, forming and bending, heading and upsetting, roll threading and knurling, shearing, stamping.
Mechanical Properties
Typical for 1" Rod Half Hard (20%) Temper
Hardness* | Rockwell B Scales | 78 |
Tensile Strength** | KSI | 70 |
Yield Strength** (.5% EAU) | KSI | 58 |
Elongation** | % in 2 inch | 25 |
**Test values are nominal approximations and depend on specimen size and orientation.
Physical Properties
Thermal Conductivity | BTU/ (sq ft-ft-hr-F) | 40 |
Specific Heat | BTU/lb/ºF @ 68F | .09 |
Thermal Expansion | Per °F from 68 F to 572 F | .0000099 |
Density | lb/cu in @ 68 F | .320 |
Electrical Conductivity* (Annealed) | % IACS @ 68 F | 15 |
Modulus of Elasticity (Tension) | KSI | 16,000 |
*Volume basis
Fabrication Properties
Capacity for being cold worked | Excellent |
Capacity for being hot formed | Poor |
Machinability rating (Free Cutting Brass=100) | - |
Suitability for being joined by: | Soldering/Excellent |
Brazing/Excellent | |
Oxyacetylene Welding/Fair | |
Gas Shielded Arc Welding/Good | |
Coated Metal Arc Welding/Fair | |
Resistance Welding | Spot/Good |
Seam/Fair | |
Butt/Excellent |