Ampco Metal AMPCOLOY® 91 Beryllium Copper, Extrusion <35mm

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Ampco Metal AMPCOLOY® 91 Beryllium Copper, Extrusion <35mm
Categories:	Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy
Material Notes:	Applications: AMPCOLOY 91 is principally used for spot welding electrodes, electrode holders and seam welding discs for stainless steel, Monel and nickel alloys, flash welding dies, electrodes for mesh welding, plunger tips in aluminium die casting machines, and parts for injection molding of plastic wherever a high thermal conductivity is desirable.
Key Words:	CDA C17510; RWMA Class 3; DIN 17666 W. Nr. 2.1285; EN CW 104C Typ A3/1; ISO NFA 82100; F AFNOR UK2Be; BG BS
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Physical Properties	Metric	English	Comments

Density	8.75 g/cc	0.316 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	260	260	HBW 10/3000
Hardness, Rockwell C	100	100
Tensile Strength, Ultimate	900 MPa	131000 psi
Tensile Strength, Yield	550 MPa @Strain 0.5 %	79800 psi @Strain 0.5 %
Elongation at Break	10 %	10 %
Modulus of Elasticity	130 GPa	18900 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000333 ohm-cm	0.00000333 ohm-cm	52% IACS

Thermal Properties	Metric	English	Comments
CTE, linear	17.0 µm/m-°C	9.44 µin/in-°F
Specific Heat Capacity	0.420 J/g-°C	0.100 BTU/lb-°F
Thermal Conductivity	208 W/m-K	1440 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Beryllium, Be	0.50 %	0.50 %
Co + Ni	2.4 %	2.4 %
Copper, Cu	96.6 - 97.1 %	96.6 - 97.1 %	As Balance
Other, total	<= 0.50 %	<= 0.50 %

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Ampco Metal AMPCOLOY® 91 Beryllium Copper, Extrusion >35mm

NAMPCO39B / 161574

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