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Eagle Brass 521 Phosphor Bronzes 8% C, Hard

Category	Metal , Nonferrous Metal , Copper Alloy , Bronze
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 521 Phosphor Bronzes 8% C, Hard.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

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

Physical Properties	Metric	English	Comments
Density	8.80 g/cc	0.318 lb/in³	Annealed

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell 30T	73 - 80	73 - 80	Thickness > 0.020 Inch
Tensile Strength, Ultimate	586 - 689 MPa	85000 - 100000 psi
Tensile Strength, Yield	538 - 655 MPa	78000 - 95000 psi	0.2% offset
Elongation at Break	12 - 30 %	12 - 30 %	in 2 in.
Tensile Modulus	110 GPa	16000 ksi

Thermal Properties	Metric	English	Comments
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-K	432 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English
Copper, Cu	91.9 %	91.9 %
Phosphorous, P	0.10 %	0.10 %
Tin, Sn	8.0 %	8.0 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000137 ohm-cm	0.0000137 ohm-cm	Annealed

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