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HIGH STRENGTH COPPER BERYLLIUM ALLOYS 25, M25 and 165 FOR HEAVY DUTY APPLICATIONS

Each industry—whether aerospace, automotive, consumer electronics, industrial, energy or telecom—has different property priorities for the materials used to make components that enable ongoing operations. Materion’s copper beryllium Alloy 25 (UNS C17200), Alloy M25 and Alloy 165 each have a unique property set that makes them multipurpose solutions across these industries. Since they do not trade high strength for conductivity, they are well suited to address the challenges in connectors and other harsh-environment components. 

Alloys 25, M25 and 165 offer many advantages over other alternative materials, including high fatigue strength and high resistance to wear, corrosion, galling and stress relaxation.

COPPER BERYLLIUM IS CONNECTING PEOPLE 

 

HIGH STRENGTH ALLOY 25

Alloy 25 is a versatile material that provides the highest strength of any copper beryllium alloy, with electrical and thermal conductivity considerably greater than other high-strength copper alloys. It has an ultimate tensile strength that can exceed 200 ksi (1380 MPa) and hardness approaching HRC 45 and a minimum electrical conductivity of 22% IACS (International Annealed Copper Standard). 

In the oil and gas industry, Alloy 25 is used to make  drilling components such as MWD/LWD tools, drill collars and subs, flex subs and shafts, drill rods, drill bit bushings, valve components, pump shafts and fasteners. Alloy 25 strip is used in essential parts in consumer electronics, including computer processor socket contacts and electromagnetic shielding gaskets. It has industrial applications including pressure sensor bellows and burn-in and test socket contacts. In medical applications, it can be used for cable, board-to-board and other miniature connectors.

Get more details about high strength Alloy 25, including physical and mechanical properties, forms, sizes and tolerances from our Alloy 25 data sheets and see the complete list of specifications and standards below. 

ALLOY M25 OFFERS GREATER MACHINABILITY 

Alloy M25, which is available in rod and wire forms, offers similar strength to that of Alloy 25, but provides greater machinability with the addition of lead. Adding lead enables Alloy M25 to be fabricated into contacts for electronics, aircraft and automotive applications. It can also be machined into parts for the watch industry, contacts for circular connectors and coaxial connectors. In the medical market, Alloy M25 can be used in push-pull, circular, non-magnetic RF, I/O and other miniature connectors. 

Learn about our highly machinable Alloy M25, including the physical and mechanical properties, forms, sizes and tolerances from our Alloy M25 data sheets and see the complete list of specifications and standards below.

ALLOY 165 OFFERS HIGH STRENGTH WITH LOWER BERYLLIUM CONTENT

Alloy 165 provides strength nearly as high as Alloy 25, but with a slightly lower beryllium content. Alloy 165 rod and bar is used to make bushings, bearings and resistance welding components. Alloy 165 tube is used in crucial telecommunications applications including undersea instrument housings and repeater housings. Alloy 165 plate is used for wear plates and resistance welding components.

To learn more about high performance Alloy 165’s physical and mechanical properties, forms, sizes and tolerances, download our Alloy 165 data sheet and see the complete list of specifications and standards below.

COPPER BERYLLIUM SPECIFICATIONS AND STANDARDS

Below are the specifications and standards set by ASTM International, SAE International, RWMA, European Standard EN, the Japanese Industrial Standard and the Military Standard. 

Alloy 25 (C17200)

Alloy 25 Strip

Alloy 25 Rod & Bar

Alloy 25 Plate

Alloy 25 Tube

Alloy 25 Wire

Alloy 25 Forgings & Extrusions

ASTM B194

ASTM B196

ASTM B194

ASTM B251, ASTM B643,

ASTM B197

ASTM B570

AMS 4530,

AMS 4532

AMS 4533,

AMS 4534,

AMS 4650,

AMS 4651

AMS 4530,

AMS 4533,

AMS 4534,

AMS 4650,

AMS 4651

AMS 4535

AMS 4725

AMS 4650

SAE J461, SAE J463

SAE J461,

SAE J463

SAE J461,

SAE J463

SAE J461,

SAE J463

SAE J461,

SAE J463

SAE J461,

SAE J463

EN 1654,

EN 13148,

EN 14436

EN 1654,

EN 2163,

EN 12165,

EN 12167

 

EN 1654,

EN 12163,

EN 12165,

EN 12167

EN 12166,

EN 1654

EN 12163,

EN 12420

 

GB 5233,

GB 4431

 

GB 5233,

GB 4431

GB5233,

GB3134

 

JIS H3130

JIS H 3270

JIS H 3130

JIS H 3270

JIS H 3270

 

 

RWMA Class 4

RWMA Class 4

RWMA Class 4

 

RWMA Class 4

 

BMS 7-353 Type 2

 

BMS 7-353 Type 2

 

 

 

MIL-C-21657

 

MIL-C-21657

 

 

QQC-533

 

 

 

 

 

Alloy M25

Alloy M25 Rod

Alloy M25 Wire

ASTM B196

ASTM B197

EN 12164

EN 12164, EN 1216

MIL-C-2165

 

Alloy 165

Alloy 165 Rod & Bar

Alloy 165 Plate

Alloy 165 Tube

Alloy 165 Forgings & Extrusions

ASTM B196

ASTM B194

 

ASTM B570

SAE J461,
SAE J463

SAE J461,

SAE J463

SAE J461,

SAE J463

SAE J461,

SAE J463

RWMA Class 4

RWMA Class 4

RWMA Class 4

RWMA Class 4

 

JIS H 3130

 

 

 

TALK WITH OUR ENGINEERS 

If your application requires high strength copper beryllium, talk with our engineers to find out which high performance alloy is the right fit.