Phosphor Bronze UNS C51000 Forgings
C51000, B103
UNS C51000 phosphor bronze copper alloy has an excellent combination of ductility and strength and possess good spring qualities.
A few other bronze copper alloys excluding the phosphor bronze copper alloy include:
- Tin bronze
- Aluminum bronze
- Silicon bronze
- Architectural bronze
- Manganese bronze
The addition of phosphor in bronze alloys results in increased wear resistance, fatigue resistance and hardness, thus allowing the usage of the phosphor bronze alloys in shafts, fasteners, valve spindles, masonry fixings, bearings, springs and gears.
Phosphor Bronze UNS C51000 Forgings Properties
UNS C51000 Forgings Chemical Requirements
| Composition, % | Element | ||||||
|---|---|---|---|---|---|---|---|
| Cu Alloy UNS No. | Sn | P | Fe, max | Pb | Zn | Ni | Cu |
| C51000 | 4.2-5.8 | 0.03-0.35 | 0.10 | 0.05 max | 0.30 max | . . . | remainder |
UNS C51000 Forgings Mechanical Requirements
| Temper DesignationA | Thickness, in. [mm] | Tensile Strength, ksiB [MPa] | Approximate Rockwell Hardness | |||
|---|---|---|---|---|---|---|
| Standard | Former | Min | Max | B Scale | Superficial 30-T | |
| C51000 | ||||||
| M20 | as hot-rolled | Over 0.188 [4.775] | 40 [275] | 60 [415] | . . . | . . . |
| O60 | soft | Over 0.039 [0.991] | 43 [295] | 58 [400] | 16-64 | . . . |
| Over 0.029 [0.737] | . . . | 32-59 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 12 - 60 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 24-53 | ||||
| 0.003 [0.076] to 0.010 [0.254] incl | ||||||
| H02 | half-hard | Over 0.039 [0.991] | 58 [400] | 73 [505] | 64-85 | . . . |
| Over 0.029 [0.737] | . . . | 59-73 | ||||
| Over 0.02 [0.508] to 0.039 [0.991] incl | 60-82 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 53-69 | ||||
| 0.003 [0.076] to 0.010 [0.254] incl | ||||||
| H04 | hard | Over 0.039 [0.991] | 76 [525] | 91 [625] | 86-93 | . . . |
| Over 0.029 [0.737] | . . . | 73-78 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 84-91 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 71-75 | ||||
| 0.003 [0.076] to 0.010 [0.254] incl | ||||||
| H06 | extra-hard | Over 0.039 [0.991] | 88 [605] | 103 [710] | 92-96 | . . . |
| Over 0.029 [0.737] | . . . | 77-81 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 89-95 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 74-78 | ||||
| 0.003 [0.076] to 0.010 [0.254] incl | ||||||
| H08 | spring | Over 0.039 [0.991] | 95 [655] | 110 [760] | 94-98 | . . . |
| Over 0.029 [0.737] | . . . | 79-82 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 92-97 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 76-80 | ||||
| 0.003 [0.076] to 0.010 [0.254] incl | ||||||
| H10 | extra-spring | Over 0.039 [0.991] | 100 [690] | 114 [785] | 96-99 | . . . |
| Over 0.029 [0.737] | . . . | 80-83 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 94-98 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 77-81 | ||||
| 0.003 [0.076] to 0.010 [0.254] incl | ||||||