Coiled Beryllium Copper Wire For Electricity Alloy 25 UNS C17200

Alloy 25(UNS.C17200) Copper Beryllium Round Wires On Spools And In Coils

Product Specification:

UNS/CDA: C17200/ 172

DIN/EN: DIN2.1247 /CW101C

Others international specification: Alloy 25, JIS C1720, CuBe2, BeCu, BrB2

Chemical composition:

Be: 1.80-2.00%

Co +Ni: 0.20% Min

Co+Ni+Fe: 0.60% Ma

Cu: Balance

Cu+Be+Co+Ni+Fe: 99.5% Min

Typical Physical Properties of Alloy 25(UNS.C17200) Copper Beryllium Alloy:

International Specification of Alloy 25(UNS.C17200) Copper Beryllium Alloy:

Note:

ASTM: American Society for Testing and Materials

SAE: Society of Automotive Engineers

AMS: Aerospace Materials Specification(Published by SEA)

RWMA: Resistance Welder Manufacturers' Association

Note: Unless otherwise specified, material will be produced by ASTM.

Key Technology of Beryllium Copper(Heat treatment)

Heat treatment is the most important process for this alloy system. While all copper alloys are hardenable by cold working, beryllium copper is unique in being hardenable by a simple low temperature thermal treatment. It involves two basic steps. The first is called solution annealing and the second, precipitation or age hardening.

Solution Annealing

For the typical alloy CuBe2Pb) the alloy is heated between 720°C and 860°C. At this point the contained beryllium is essentially “dissolved” in the copper matrix (alpha phase). By rapidly quenching to room temperature this solid solution structure is retained. The material at this stage is very soft and ductile and can be readily cold worked by drawing, forming rolling, or cold heading. The solution annealing operation is part of the process at the mill and is not typically used by the customer. Temperature, time at temperature, quench rate, grain size, and hardness are all very critical parameters and are tightly controlled by ohmalloy.

Age Hardening

Age hardening significantly enhances the material’s strength. This reaction is generally carried out at temperatures between 260°C and 540°C depending on alloy and desired characteristics. This cycle causes the dissolved beryllium to precipitate as a beryllium rich (gamma) phase in the matrix and at the grain boundaries. It is the formation of this precipitate which causes the large increase in material strength. The level of mechanical properties attained is determined by the temperature and time at temperature. It should be recognized that beryllium copper has no room temperature aging characteristics.

Fabrication

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We are problem solvers. Not sure what metal you need? Our friendly, knowledgeable staff are always ready to help. We will listen to your needs and provide suitable metal solutions.We have successfully carried out a number of trade activities around the world and have 7 years of trading experience. The most important customers are from Europe, the Middle East, and Southeast Asia.Your satisfaction is our pursuit, to ensure that you will always get first-class products and perfect pre-sales and after-sales service.