CuBe2Pb Leaded Beryllium Copper Bars 8*1000mm For Contact Bridge

Product Description:

Name: Leaded beryllium copper bars

Grade: CuBe2Pb

Size: 8*1000mm, or according customers' requirement

End Product Form: Rods/ Bars

Standard: ASTM B196, QQ-C-530

State of product: A(TB00),H(TD04),AT(TF00),HT(TH04)

Processing: Seamless / Welding

Feature: With high strength and high conductivity

Package: Pack in coil+waterproofing winding film+Drier+Wooden Case

CUBERYLLIUM® manufactures copper beryllium in several distinct compositions. These fall into two categories: alloys selected for high strength (Alloys 172,173,170) and alloys selected for high conductivity (Alloys 751,750,741). And Gost standard QBe2,QBe1.9Ti for Russia Market. Also Supply Master alloy : CuBeryllium-200; CuBeryllium-275);CuBeryllium-350 and Cuberyllium-400 to global factory.

Beryllium copper has its reasonable share of common names. You will listen referred to as BeCu, Copper Beryllium, Beryllium Bronze, and Spring Copper. Anytime you hear those terms, they're in reference to Beryllium Copper. Beryllium round bars are accessible as high strength and high conductivity alloys.

CUBERYLLIUM ®-173 also named -C17300 (CDA 173) offers the strength properties of C17300 with the added benefit of being “free machining”. C17300 rod and wire contain a small amount of lead to provide an alloy tailored for automatic machining operations. Lead promotes formation of finely divided chips thus extending cutting tool life.

Chemical Composition of CuBe2Pb Leaded Beryllium Copper Alloys:

Note: Copper plus additions equal 99.5% minimum.

Typical Physical Properties of CuBe2Pb Leaded Beryllium Copper Alloys:

Density: 8.36g/cm3

Density before age hardening: 8.25g/cm3

Melting Range: 870~980℃

Elastic Modulus((kg/mm2 (103)): 13.4

Thermal Expansion Coefficient(20 °C to 200 °C m/m/°C): 17 x 10 -6

Thermal Conductivity(cal/(cm-s-°C)): 0.25

Mechanical and Electrical Properties of CuBe2Pb Leaded Beryllium Copper Bars:

CuBe2Pb Leaded Beryllium Copper Alloys International Specification:

Rods/Bars/Tubes: ASTM B196, QQ-C-530

Wires: ASTM B197, QQ-C-530

European Standards: CuBe2Pb, Alloy M25, UNS.C17300, DIN.2.1248, CW102C to EN

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.

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Product Photo:

Key Technology of Beryllium Copper(Heat treatment)

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.