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Eagle Brass 64725 MAX251C, Extra Hard
Categories: Metal; Nonferrous Metal; Copper Alloy

Material Notes: Max 251c has an excellent balance in hardness, formability and conductivity. Typical uses include lead frames, circuit breakers, connectors, electrical springs, contact terminals, and fuse clips.

Information provided by Eagle Brass Company

Key Words: UNS C64725, ASTM B422
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 8.77 g/cc0.317 lb/in³Annealed
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 634 - 738 MPa92000 - 107000 psi
Tensile Strength, Yield 579 - 731 MPa84000 - 106000 psi0.2% offset
Elongation at Break >= 3.0 %>= 3.0 %in 2 in.
Tensile Modulus 131 GPa19000 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000481 ohm-cm0.00000481 ohm-cmAnnealed
 
Thermal PropertiesMetricEnglishComments
CTE, linear 17.1 µm/m-°C
@Temperature 20.0 - 300 °C
9.50 µin/in-°F
@Temperature 68.0 - 572 °F
Thermal Conductivity 15.91 W/m-K110.4 BTU-in/hr-ft²-°F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 96 %96 %
Nickel, Ni 2.0 %2.0 %
Silicon, Si 0.50 %0.50 %
Tin, Sn 0.50 %0.50 %
Zinc, Zn 1.0 %1.0 %

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NEAGLE150 / 147399

Specialty Compounds RTP Company

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