Materion Alloy M65 (C17465) Beryllium Copper Rod

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Materion Alloy M65 (C17465) Beryllium Copper Rod (discontinued **)
Categories:	Metal; Nonferrous Metal; Beryllium Alloy; Copper Alloy
Material Notes:	Alloy M65 (C17465) is a machinable, high-performance, copper beryllium rod alloy from Brush Wellman. M65 has excellent strength, conductivity, and resistance to elevated temperature stress relaxation. The machinability of M65 is 80% of free machining brass. M65 is pre-hardened - No heat treatment is required after machining. Information supplied by Brush Wellman Engineered Materials. Brush Engineered Materials Inc. changed its name to Materion Corporation in March 2011.
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Physical Properties	Metric	English	Comments

Density	8.94 g/cc	0.323 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	24	24
Hardness, Vickers	260	260
Tensile Strength, Ultimate	>= 896 MPa	>= 130000 psi
Tensile Strength, Yield	>= 827 MPa	>= 120000 psi
Elongation at Break	8 %	8 %
Modulus of Elasticity	138 GPa	20000 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000382 ohm-cm	0.00000382 ohm-cm	Conductivity is 45% IACS
Magnetic Permeability	0.99997	0.99997

Thermal Properties	Metric	English	Comments
Thermal Conductivity	225 W/m-K	1560 BTU-in/hr-ft²-°F
Melting Point	1030 °C	1880 °F

Component Elements Properties	Metric	English	Comments
Beryllium, Be	0.20 - 0.50 %	0.20 - 0.50 %
Copper, Cu	97.5 - 98.6 %	97.5 - 98.6 %	As remainder
Lead, Pb	0.20 - 0.60 %	0.20 - 0.60 %
Nickel, Ni	1.0 - 1.4 %	1.0 - 1.4 %

Descriptive Properties
Machinability (% of C36000)	80%
Stress Relaxation	72%		at 200°C for 1000 hr
	81%		at 175°C for 1000 hr
	86%		at 150°C for 1000 hr
	90%		at 125°C for 1000 hr

**
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NBBC15 / 15325

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