Hyper Phosphor Bronze

C5210 (HP)

C5210 (HP)
High Strength Phosphor Bronze for Springs

Overview

Hi-Performance C5210 alloy, (C5210 (HP)), was developed by enhancing the conventional phosphor bronze alloy C5210. Having the same chemical composition as C5210 but with higher strength and excellent bend formability, it exceeds ordinary phosphor bronze in meeting customer requirements as a material in switches, connectors, relays, and other electronic parts.
(We provide the Hi-Performance Series-materials with the same composition as conventional products but with advanced material properties achieved by precision process control.)

Table 1. C5210 (HP) chemical composition (%)

  Cu Sn P Fe Pb Cu+Sn+P
Standard composition Remainder 8.0 0.15 ≦ 0.10 ≦ 0.05 ≧ 99.7

Table 2. Physical properties of C5210 (HP)

Electrical conductivity 12 %IACS (@20℃)
Specific resistance 144 nΩ·m (@20℃)
Thermal conductivity 63 W/mK
Linear expansion coefficient 18.2 ×10-6/K (20 to 300℃)
Modulus of Elasticity 110 GPa
Density 8.80 g/cm3

Table 3. Mechanical properties of C5210 (HP)

Temper Tensile strength (MPa) Yield strength (MPa) Elongation (%) Vickers hardness (Hv)
H HP 636 565 33.4 -
Conventional 625 528 28.9 185-235
Specification range 590-705 - ≧20 -
EH HP 729 688 22.1 -
Conventional 724 667 19 210-260
Specification range 685-785 - ≧11 -
SH HP 790 760 17.8 -
Conventional 764 710 18.1 230-270
Specification range 735-835 - ≧9 -
ESH HP 853 823 12 -
Conventional 813 786 12.6 245-285
Specification range 770-885 - ≧5 -
XSH HP 918 879 2.8 -
Conventional - - - -
Specification range 835-1,000 - ≧1 -
  • Standard specs
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