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Elmet Technologies

Eagle Brass 521 Phosphor Bronze 8% C, 1/4 Hard
Categories: Metal; Nonferrous Metal; Copper Alloy; Bronze
Material Notes: Alloy C521 is a high tin alloy of the phosphor bronze family. The additional tin relative to the more commonly used C510 results in higher mechanical properties with a modest reduction in electrical conductivity.

Applications include electronic parts, springs, contacts, switch parts and fasteners.

Information provided by Eagle Brass Company
Key Words: UNS C52100, ASTM B103
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 8.80 g/cc0.318 lb/in³Annealed
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell 30T 59 - 7159 - 71Thickness > 0.020 Inch
Tensile Strength, Ultimate 434 - 517 MPa63000 - 75000 psi
Tensile Strength, Yield 241 - 427 MPa35000 - 62000 psi0.2% offset
Elongation at Break 40 - 60 %40 - 60 %in 2 in.
Tensile Modulus 110 GPa16000 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000137 ohm-cm0.0000137 ohm-cmAnnealed
 
Thermal PropertiesMetricEnglishComments
CTE, linear 18.2 µm/m-°C
@Temperature 20.0 - 300 °C		10.1 µin/in-°F
@Temperature 68.0 - 572 °F
Thermal Conductivity 62.3 W/m-K432 BTU-in/hr-ft²-°F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 91.9 %91.9 %
Phosphorus, P 0.10 %0.10 %
Tin, Sn 8.0 %8.0 %

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NEAGLE138 / 147387

Ensinger PEI




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