C17500 CDA 175 Cobalt Beryllium Copper Round Bars Rods 12x500mm

Place of Origin China
Certification ISO ROHS
Model Number C17500(CDA 175)
Minimum Order Quantity 30kg
Price USD 30~50/KG
Packaging Details Pack in coil+waterproofing winding film+Drier+Wooden Case
Delivery Time 10~15 Working days
Payment Terms L/C, T/T
Supply Ability 50T/Month

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Product Details
Name C17500 (CDA 175) Cobalt Beryllium Copper Round Rods/Bars ASTM ASTM B441
Surface Bright Specification 12*500mm
State AT(TF00) Heat Treatment 3 Hr 480℃
Typical Application Electrical Industry Shape For Available Rod&Bar
Hardness B92~100 Rockwell B Scale Brand CUBERYLLIUM®
Tensile Strength 680~900 Mpa Elongation Percent 10~30 Min
Electrical Conductivity 45~60% IACS
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C17500 Beryllium Copper Round Bars 12x500mm


CDA 175 Cobalt Beryllium Copper Round Bars 12x500mm


C17500 beryllium bronze 12x500mm

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Product Description

C17500 (CDA 175) Cobalt Beryllium Copper Round Rods/Bars With All Sizes

Product Description:

Name: Cobalt Beryllum Copper Round Rods/Bars

Grade: C17500 (CDA 175)

End Product Form: Rods/ Bars

Standard: ASTM B441

Processing: Seamless / Welding

Feature: Anti corrosion and wear resistant materials

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

Specification: All sizes



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.


CUBERYLLIUM ®-750 also named -C17500 (CDA 750) combine moderate yield strength, up to 960Mpa(140ksi), with electrical and thermal conductivity from 45 to 60 % of pure copper. Alloys 750 and 751 are available in wrought product forms and can be supplied fully hardened. Hardened products are identified by the temper designation AT or HT, and have good formability.


Chemical Composition of C17500 (CDA 175) Cobalt Beryllium Copper Alloys:

CUBERYLLIUM® Brand UNS-Number Beryllium Cobalt Nickel Cobalt+Nickel Lead Copper
Cuberyllium-C750 C17500 0.40-0.70 2.4~2.7 - - - Balance


Related material specifications of C17500 (CDA 175) Cobalt Beryllium Copper Alloys:

Rods/Bars/Tubes: ASTM B441, SAE J461, 463; RWMA Class 3

Strips: ASTM B534

Sheets: ASTM B534

Wires: ASTM B441

Plates: ASTM B534, SAE J461, RWMA Class 3

European Standards: CuCo2Be, CuCoBe, UNS. C17500, Alloy 10, DIN 2.1285, CW104C to EN



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.

Physical Properties of C17500 (CDA 175) Cobalt Beryllium Copper Alloys:

Density 8.83 g/cm3
Density before age hardening 8.75 g/cm3
Melting Range 1000~1070
Elastic Modulus 14.1 (kg/mm2 (103)
Thermal Expansion Coefficient 18 x 10 -6 20 °C to 200 °C m/m/°C
Thermal Conductivity 0.48 cal/(cm-s-°C)


Typical Applications for C17500 (CDA 175) Cobalt Beryllium Copper Alloys:

A: Electrical Industry: Switch Parts, Connectors, Spring Connectors, Fuse Clips, Relay Parts;

B: Fasteners: Washers, Fasteners;

C: Industrial: Spring, Resistance Welding Equipment, Resistance and Spot Welding Tips, Seam Welding Dies, Die-Casting Plunger Tips, Tooling for Plastic Moulds.


Mechanical Properties of C17500 (CDA 175) Cobalt Beryllium Copper Round Rods/Bars:

Hardness, Rockwelle B                                              78-88
Tensile Strength, Ultimate 480-590 MPa
Tensile Strength, Yield 370-560 MPa
Elongation at Break 2.0-8.0%
Modulus of Elasticity 138 GPa
Machinability 40%



Product Photo:

C17500  CDA 175 Cobalt Beryllium Copper Round Bars Rods  12x500mm 0




Soldering, brazing, gas shielded arc welding, coated metal arc welding, spot welding, seam welding and butt welding are all recommended


Hot & Cold Workability

Good hot working properties. Excellent cold working properties.


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.



Q1:What’s the advantages the Beryllium Copper of CUBERYLLIUM®?

A1: 1: The Biggest Coil weight could be reach 1200kg/Coil

2:We are the only one who melting by Vacuum semi-Continuous Furnace.

3:Surface further polishing for top clients.

Q2: How about your payment terms?
A2: Generally, 30% as deposit by T/T, then 70% should be paid before the delivery.

Q3: Why you melting by Vacuum semi-Continuous Furnace?
A3:Could be get the Cast ingot without gas,smaller segregation, Grain Refinement

Q4: What's the payment terms?
A4: We accept T/T, L/C, Paypal etc. It can be negotiated when the amount is different.