CuSn4 CuSn6 CuSn8 Phosphor Tin Bronze Coil Strip
CuSn6 - UNS.C51900 Phosphor Bronze Alloys, which is a 6% tin bronze distinguished by a very good combinatio of strength and electrical conductivity. It is used for connector and current-carrying springs in contacts. Among the 4-8% tin bronze C51900 exhibits a high electrical conductivity, the highest reachable strength is significantly higher than C51100 and C51000. By means of an additional further tenpering after the cold forming process the bendability can be further improved.
Phosphor Bronze C51900 Chemical composition
Articles | Chemical composition | |||||
GB | UNS | EN | JIS | Cu% | Sn% | P% |
QSn6.5-0.1 | C51900 | CuSn6 | C5191 | Rem | 5.5-7.0 | 0.03-0.35 |
Chemical Composition | |||
% | |||
Sn | P | Cu | impurity |
7.0~9.0 | 0.15~0.35 | Bal. | ≤0.1 |
Phosphor Bronze Mechanical properties
Mechanical Properties | |||||
Temper | T.S(N/mm²) | Elongation(%) | Hardness(Hv) | ||
M | O | O60 | ≥345 | ≥40 | / |
Y4 | 1/4H | H01 | 390-510 | ≥35 | 100-160 |
Y2 | 1/2H | H02 | 490-610 | ≥8 | 150-200 |
Y | H | H04 | 590-705 | ≥5 | 190-230 |
T | EH | H06 | 585-740 | / | 200-240 |
TY | SH | H08 | ≥735 | / | ≥230 |
Mechanical properties | |||||||
State | Hardness(HV) | Tension test | Bending test | ||||
thickness mm | tensile strength MPa | elongation % | thickness | angles | ID | ||
0 | - | 0.1-5.0 | ≥315 | ≥42 | ≤1.6 | 180° | 50% of thickness |
1/4H | 100-160 | 0.1-5.0 | 390-510 | ≥35 | ≤1.6 | 180° | 100% of thickness |
1/2H | 150-205 | 0.1-5.0 | 490-610 | ≥20 | ≤1.6 | 180° | 150% of thickness |
H | 180-230 | 0.1-5.0 | 590-685 | ≥8 | ≤1.6 | 180° | 200% of thickness |
EH | 200-240 | 0.1-0.2 | 635-720 | - | - | - | - |
>0.2-5 | ≥5 | - | - | - | |||
SH | ≥210 | 0.1-5.0 | ≥690 | - | - | - | - |
Phosphor Bronze C51900 Features for Phosphor Bronze Strips
Phosphor Bronze C51900 Typical application
Phosphor Bronze is widely used in counputer CPU slot, car terminal, cell phone buttons, electrical connectors and other high technical electronic field.