Phosphor Bronze UNS C51900 Forgings
C51900, B103
UNS C51900 is a phosphor bronze wrought alloy. UNS C51900 alloy is resistant to seawater and industrial atmosphere. It is also resistant to stress corrosion cracking. It has an excellent combination of strength and electrical conductivity.
Phosphor Bronze UNS C51900 Forgings Properties
UNS C51900 Forgings Chemical Requirements
| Composition, % | Element | ||||||
|---|---|---|---|---|---|---|---|
| Cu Alloy UNS No. | Sn | P | Fe, max | Pb | Zn | Ni | Cu |
| C51900 | 5.0-7.0 | 0.03-0.35 | 0.10 | 0.05 max | 0.30 max | . . . | remainder |
UNS C51900 Forgings Mechanical Requirements
| Temper DesignationA | Thickness, in. [mm] | Tensile Strength, ksiB [MPa] | Approximate Rockwell Hardness | |||
|---|---|---|---|---|---|---|
| Standard | Former | Min | Max | B Scale | Superficial 30-T | |
| C51900 | ||||||
| O60 | soft | Over 0.039 [0.991] 48 [330] | 63 [435] | 22-66 | . . . | |
| Over 0.029 [0.737] | . . . | 35-64 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 18-63 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 25-57 | ||||
| H02 | half-hard | Over 0.039 [0.991] 64 [440] | 79 [545] | 70-88 | . . . | |
| Over 0.029 [0.737] | . . . | 63-76 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 65-85 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 58-72 | ||||
| H04 | hard | Over 0.039 [0.991] 80 [550] | 96 [660] | 89-95 | . . . | |
| Over 0.029 [0.737] | . . . | 74-80 | ||||
| Over 0.020 [0.508] to 0.039 [0.991] incl | 86-93 | . . . | ||||
| Over 0.010 [0.254] to 0.029 [0.737] incl | . . . | 72-78 | ||||