Phosphor Copper Series

Phosphorus is a chemical element that has deoxidization properties. When copper is melted, oxygen and other gases from the environment and within the processes will get into the molten metal. These gases can make the metal too porous to be worked or will develop cracks when used for certain applications. Phosphorous helps to remove the oxygen and other gases from copper during the melt as it increases the copper’s strength.

As phosphor is added into molten copper, it forms phosphorus pentoxide that results when the phosphor gathers in the oxygen in the copper. This phosphorous pentoxide is then removed when the copper undergoes the refining process. The remaining phosphor ends up in the solution with the copper. Copper alloys that can be made with phosphor include phosphor copper, and phosphor bronzes.

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Grade list of copper and copper alloys by country
ClassificationChinaGermanyAmericaJapanEnglandEuropeInternational
oxygen free copperTU12.0076C10200C1020RC103
TU2Cu-OF-H110C11000c1011C101
Vacuum oxygen free copperE-Cu58TU00c10206N
high puritycopper-OFEc10500c10700
Silver copperTAg 0.1CuAg 0.1C10400C1040CuAg 0.1
brassH90CuZn10C22000C2200CZ101CuZn10CW501L
H70CuZn30C26000C2600CZ106CuZn30CW505L
H68C26200C2620CuZn33CW506L
H65CuZn35C27000C2700CZ107CuZn36CW507L
H63CuZn37C27200C2720CZ108CuZn37CW508L
H62CuZn40C28000C2800CZ109CW509L
bronzeQSn4-0.3CuSn4C51100C5111PB101CuSn4CW450K
CuSn5C51000C5101CuSn5CW451K
QSn6.5-0.1CuSn6C51900C5191PB103CuSn6CW452K
QSn8-0.3CuSn8C52100C5210CuSn8CW453K
QSn6.5-0.4
copper-nickelBZn18-18CuNi18Zn20C75200C7521NS106CuNi18Zn20
BZn18-26CuNi18Zn27C77000C7701NS107CuNi18Zn27CW410J
BZn15-20C7541CW409J
BZn18-10C7350
pure copperTU2OF-Cu58C10100C1011C101CW008Acopper oxide
T2SW——copperC11000C1100C101copper - FRHC
TP2SF-CuC12200C1220C106CW024Acopper - DHP
TP1SW-copperC12000C1201CW023Acopper DLP

 

1.  In addition to providing deoxidizing properties, phosphor also provides a range of other benefits. Copper by itself has amazing corrosion resistance, as this property becomes enhanced due to the added phosphor. It also improves tensile strength, removes brittleness characteristics, and improves machinability and workability.

2.  Small amounts of phosphor will not impact the natural electrical and thermal conductivity in copper. Yet keep in mind that the more phosphor that is added, the more that the copper conductivity will become depressed. For example, phosphorous deoxidized copper will basically have a copper content of 99.9%. However, this same copper will have a conductivity of only 85% IACS. Certain phosphor bronzes may only have a conductivity ranging between 25% to 50% IACS.

3.  Consider the type of application that the copper will be used in and the level of desired conductivity to determine the amount of phosphor that will be necessary. In some cases, the sacrifice in conductivity but the improvement of the copper’s corrosion and strength will be a positive result.

Tin phosphor bronze has higher corrosion resistance, wear resistance and no spark on impact. Used for medium speed, heavy load bearing, maximum working temperature 250℃. It has the characteristics of automatic self-aligning, insensitive to deflection, uniform bearing force, high bearing capacity, radial load at the same time, self-lubricating without maintenance, etc. Tin phosphor bronze is a kind of alloy copper, has good electrical conductivity, not easy to heat, to ensure safety and has a strong fatigue resistance. Tin phosphor bronze socket reed hard wired electrical structure, no rivet connection or friction contact, can ensure good contact, good elasticity, smooth insertion. The alloy has excellent machinability and chip forming property, which can shorten the machining time of parts quickly. As an intermediate alloy, phosphor copper is widely used in copper casting, solder and other fields, and plays an important role in the development of national economy.

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Tel: 0086-021-57629806

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