Navigations


Products

Hyper Phosphor Bronze C5210(HP)

C5210(HP) Phosphor bronze designed for springs with high mechanical strength

Description

Data

We have improved conventional phosphor bronze (C5210) to develop hi-performance phosphor bonze (C5210-HP). C5210-HP has higher mechanical strength and better bend formability than C5210. C5210-HP is a more suitable material to be used for such electronic components as switches, connecters and relays than conventional phosphor bronze.
We offer Hi-performance series, which consist of highly functional materials with dramatically improved characteristics elaborated through precision product process, without changing chemical compositions.

Table 1. Chemical Composition of C5210-HP (Wt%)

  Cu Sn P Fe Pb Cu+Sn+P
Typical Balance 8.0 0.15 ≦ 0.10 ≦ 0.05 ≧ 99.7

Table 2.Physical Properties of C5210-HP

Electric conductivity 12 %IACS(@20℃)
Specific resistance 144 nΩ ・ m(@20℃)
Thermal conductivity 63 W/mK
Thermal expansion coefficient 18.2 ×10-6/K(20 to 300℃)
Young's modulus 110 GPa
Density 8.80 g/cm3

Table 3. Mechanical Properties of C5210-HP (Upper: HP,Middle: Conventional, Lower: Spec. Range)Conventional, Lower: Spec. Range)

Temper Tensile Strength
(N/mm2)
0.2% offset Yield
(N/mm2)
Elongation
(%)
Vickers Hardness
(Hv)
H 636
625
590-705
565
528
33.4
28.9
≧20

185-235
EH 729
724
685-785
688
667
22.1
19
≧11

210-260
SH 790
764
735-835
760
710
17.8
18.1
≧9

230-270
ESH 853
813
770-885
823
786
12
12.6
≧5

245-285
XSH 918

835-1,000
879

2.8

≧1