P & P Technology BeCu alloy 25 (CA172) Contact Finger Strips

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P & P Technology BeCu alloy 25 (CA172) Contact Finger Strips
Categories:	Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy
Material Notes:	The CFS range of contact finger strips are available in Beryllium Copper, Phosphor Bronze and Stainless Steel. Many plating options are also available. Contact finger strips are used to close the aperture between two surfaces and provide high EMI shielding effectiveness. The strips are very versatile in applications where low closure force is required such as enclosures. Material Specification: (Beryllium Copper) BeCu alloy 25(CA172) is used for maximum spring, strength and fatigue resistance. Information provided by P & P Technology
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Mechanical Properties	Metric	English	Comments

Tensile Strength	175 - 185 MPa	25400 - 26800 psi	Heat Treated
Modulus of Elasticity	185 GPa	26800 ksi	Heat Treated

Electrical Properties	Metric	English	Comments
Volume Resistivity	0.00000769 - 0.0000080 ohm-cm	0.00000769 - 0.0000080 ohm-cm	Heat Treated
Shielding Effectiveness	>= 110 dB @Frequency 100000 Hz	>= 110 dB @Frequency 100000 Hz	H-Field
	>= 110 dB @Frequency 1e+7 Hz	>= 110 dB @Frequency 1e+7 Hz	E-Field
	>= 110 dB @Frequency 1e+9 Hz	>= 110 dB @Frequency 1e+9 Hz	P-Field

Component Elements Properties	Metric	English	Comments
Beryllium, Be	1.8 - 2.0 %	1.8 - 2.0 %
Co + Ni	>= 0.20 %	>= 0.20 %
Co + Ni + Fe	>= 0.60 %	>= 0.60 %
Copper, Cu	97.2 %	97.2 %

Descriptive Properties
Temper	1000 psi		Heat Treated

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PPPTEC005 / 133469

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