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Specs: ASTM-B-139, AMS 4625, QQ-B-750
The term “bronze” broadly refers to Copper alloys in which the major alloying element is neither Zinc (which forms brass) nor Nickel (which forms Copper- Nickel).
C51000 Bronze (CuSn5) is a Tin Bronze that contains Copper, Tin, and Phosphorous. The Tin increases corrosion resistance and strength, while the Phosphorous increases wear resistance and stiffness.
Phosphor Bronze alloys are best known for their elastic properties and are often used for spring-loaded electrical contacts, various electrical connectors, sleeve bushings, clutch discs, and fasteners. C51000 Bronze brazes and solders extremely well and has excellent cold working capacity.
Phosphor Bronze C51000 (CuSn5) is a tin bronze with the addition of 5% tin and 0.2% phosphorus for deoxidation. The tin increases the strength of the alloy and gives good corrosion resistance in marine environments.
C51000 is one of the most widely used phosphor bronzes, owing to its unique combination of properties.
The alloy offers an optimized combination of engineering properties, such as high strength and ductility, excellent fatigue and spring characteristics coupled with good corrosion resistance. It has excellent bearing properties with a low coefficient of friction and high wear resistance.
In addition, it has good cold-forming properties and spring properties with excellent resistance to stress relaxation.
The alloy has an adequate electrical and thermal property, which helps it find applications in current-carrying and heat transfer applications.
Specifications of Phosphor Bronze 51000
|Tube & Pipe|
Welded & Seamless
|Sheet & Plate||Strip||Rod, Bar|
|ASTM B 100|
ASTM B 103
|ASTM B 103||ASTM B 139||ASTM B 159|
|AMS||AMS 4625||AMS 4510||AMS4625|
|Federal||MIL T 3595||MIL W 6712|
|CW 451K||EN 1652||EN 1652|
|EN 12163||EN 12166|
|PB 102||BS 2870|
|BS 2870||BS 2874|
Def Stan 02 838
|CuSn4P||NF A 51-108|
|C2105||JIS H 3110||JIS H 3110||JIS 3270||JIS 3270|
|518||AS 1566||AS 1566||AS/NZS 1567||AS/NZS 1573|
CSN ISO 427
|CSN ISO 1634-1|
CSN ISO 1634-3
|CSN ISO 1637||CSN ISO 1638|
|ISO 1637||ISO 1638|
Mechanical Properties of Phosphor Bronze 51000
|Rod & Bar||H04 Hard||<=0.25” (<=6mm)||80-128 550-880||NA NA||NA|
|0.25-0.5” (6-12mm)||70-80 485-550||13-20|
|>0.5-1.0” (>12-25mm)||60-70 415-485||15-22|
|>1” (>25mm)||55-65 380-448||18-25|
Physical Properties of Phosphor Bronze 51000
|Physical Properties||Imperial Units||Physical Metric Units|
|Melting Range||1750-1920ºF||950- 1050ºc|
|Mean Liner Expansion|
|0.0178 ºc x10-³|
|Mean Liner Expansion|
|0.00099 ºF x10-³|
|Specific Heat||0.0908Btu/lb/ ºF @68ºF||377J/kg ºK @20 ºc|
|Thermal Conductivity||40Btuft² /hr-ft ºF @68ºF||69W/m. ºK|
|Electrical Conductivity||20% IACS @68ºF||0.088MS/cm@20 ºc|
|Electrical Resistivity||4.53µ_in||11.5 μΩcm|
|Modulus of Elasticity 10³|
While the data is believed to be accurate, Wieland Diversified makes no representation or warranty of any kind (expressed or implied) and assumes no responsibility with respect to the accuracy and values shown above; this information should only be used as a guide.
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