Content of basic components
2% - 8% tin, 0.1% - 0.4% phosphorus, the rest is copper alloy.
Phosphor copper (phosphor bronze) (tin bronze) (Tin Phosphorus Bronze) is composed of degassing agent, phosphorus P content is 0.03 ~ 0.35%, tin content is 5 ~ 8%. And other trace elements such as iron, iron, zinc, zinc, etc., it has good ductility and fatigue resistance. It can be used in electrical and mechanical materials, and its reliability is higher than that of common copper alloy products.
The Tin Phosphorus Bronze has higher corrosion resistance, wear resistance and no spark during impact. It is used for medium speed and heavy load bearing with high working temperature of 250 ℃. It has the characteristics of automatic centering, insensitive to deflection, uniform bearing capacity, high bearing capacity, radial load at the same time, self lubrication and no maintenance.
Tin Phosphorus Bronze is a kind of alloy copper, which has good electrical conductivity, is not easy to heat, ensure safety and has strong fatigue resistance.
Tin phosphor bronze jack spring hard wire electrical structure, no rivet connection or friction contact, can ensure good contact, good elasticity, and stable plug-in. The alloy has excellent machinability and chip forming properties, which can shorten the processing time of parts rapidly.
Physical properties and Application
Basic characteristics
Alloy grades c5111, c5101, C5191, c5212, C5210
Specific gravity 8.86 8.85 8.83 8.8 8.8
Coefficient of thermal expansion 18 18 18 18 18
Thermal conductivity coefficient 84 71 67 63 63
Conductivity 20 16 14 13 13
The volume resistance rate was 8.86 10.78 12.32 13.26 13.26
The specific heat is 0.378 0.378 0.378 0.378 0.378
Elastic coefficient 117600 114660 112700 107800 107800
Brand: C5210 phosphor bronze
Standard: GB / T 1176-1987
Characteristics: corrosion resistance, especially for dilute sulfuric acid, hydrochloric acid and fatty acid high corrosion resistance.
Chemical composition (%):
Copper: surplus
SN: 7.0-9.0
Zinc and zinc: ≤ 0.2
Lead and lead: ≤ 0.05
Ni: ≤ 0.2
Fe: ≤ 0.10
Phosphorus P: 0.03-0.35
Cu + Sn + P: more than 99.5%
Brand: C5191
Standard: GB / T 4423-1992
Characteristics and scope of application:
C5191 Tin Phosphorus Bronze has high strength, elasticity, wear resistance and diamagnetism. It has good pressure machinability in hot and cold state, high flame resistance to electric spark, weldability and fiber welding, good machinability and corrosion resistance in atmosphere and fresh water. -(Nokia) C5191 is used to make springs and spring contact plates with good conductivity, wear-resistant parts and antimagnetic parts in precision instruments, such as gears, brush boxes, vibrating plates, contactors, etc.
chemical composition
Copper: surplus
Tin SN: 6.0 ~ 7.0
Lead and lead: ≤ 0.02
Phosphorus P: 0.10-0.25
Al: ≤ 0.002
Fe: ≤ 0.05
Silicon Si: ≤ 0.002
Antimony sb: ≤ 0.002
Bismuth Bi: ≤ 0.002
No.229, Guanyue Road, Pudong Distric,Shanghai 200120, China