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Eagle Brass 725 Copper Nickel Tin, Extra Spring

Category Metal , Nonferrous Metal , Copper Alloy
Manufacturer Eagle Brass Company
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Eagle Brass 725 Copper Nickel Tin, Extra Spring.pdf
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Material Notes:
Alloy C725 is a moderate strength, low conductivity alloy with excellent bare solderability and corrosion resistance. Applications include electronic parts, springs, connectors and wire wrap terminals.Information provided by Eagle Brass Company
Physical Properties Metric English Comments
Density 8.89 g/cc
0.321 lb/in³
Annealed
Mechanical Properties Metric English Comments
Hardness, Rockwell 30T 75 - 80
75 - 80
Thickness > 0.020 Inch
Tensile Strength, Ultimate 621 - 724 MPa
90000 - 105000 psi
Tensile Strength, Yield 607 - 703 MPa
88000 - 102000 psi
0.2% offset
Elongation at Break <= 1.0 %
<= 1.0 %
in 2 in.
Tensile Modulus 138 GPa
20000 ksi
Thermal Properties Metric English Comments
CTE, linear 16.6 µm/m-°C

@Temperature 20.0 - 300 °C
9.20 µin/in-°F

@Temperature 68.0 - 572 °F
Thermal Conductivity 53.6 W/m-K
372 BTU-in/hr-ft²-°F
Component Elements Properties Metric English Comments
Copper, Cu 88.2 %
88.2 %
Nickel, Ni 9.5 %
9.5 %
Tin, Sn 2.3 %
2.3 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000162 ohm-cm
0.0000162 ohm-cm
Annealed
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