What is the lead time for production?

The average lead time is one month for both peak and off-peak seasons.

Does the material offer low thermal expansion?

Yes, copper tungsten composites have a relatively low and tailorable coefficient of thermal expansion, suitable for semiconductor and ceramic applications.

Are the products subjected to quality testing?

Yes, all products undergo rigorous physical testing including density, tensile, yield strength, conductivity, elongation, and hardness checks before delivery.

Copper Tungsten Cuw or Wcu Heat Sinks and Electronic Packaging Materials

Name: Copper Tungsten Cuw or Wcu Heat Sinks and Electronic Packaging Materials
Brand: Xi'an Kefeng Powder Metallurgy Co., Ltd.
SKU: 2111215975

Shaanxi, ChinaXi'an Kefeng Powder Metallurgy Co., Ltd.

US$100.00-500.00

50 kg

Sample price:US$8.00/piece.Request sample

Product profile

Customization

Available

Type

Cu (Copper/Copper-Alloy Welding Electrode)

Material

Wcu 70/30, Wcu 75/25, Wcu 80/20, Wcu 90/10

Model NO.

TC002

Diameter

Standard or by Drawing

Length

Standard or by Drawing

Welding Core Type

Alloy Structual Tungsten

Electrode Coating Type

Tungsten Alloy

Function

Surfacing Electrode, High Efficient Iron Powder Electrode

Composition

65%W35%Cu, 70%W30%Cu, 75%W25%Cu, 80%W20%Cu Copper

Standard

Rwma Class

Shapes

Wire, Rod, Bar, Strip, Foil, Block, Plate, Ring

Transport Package

Export Wooden Cases

Specification

Standard sizes or customized

Trademark

Kefeng

Origin

China

HS Code

81019990

Production Capacity

3000kgs Per Month

Key features

Wide Composition Range: Available from Cu 50 wt.% to Cu 90 wt.% with ratios like 70/30, 75/25, 80/20, 90/10.

Customizable Dimensions: Diameter from 1.0mm to 127mm+; Thickness from 0.05mm to 50mm; shapes by drawing.

High Thermal Conductivity: Superior thermal conductivity ranging from 180 to 230 W/m-K depending on composition.

Arc Erosion Resistance: Excellent resistance to high-temperature and arc-erosion for long electrode life.

Low Thermal Expansion: Tailorable coefficient of thermal expansion matching SiC and ceramic substrates.

ISO 9001 Certified: Manufacturer is ISO-accredited with over 28 years of experience in quality production.

Diverse Product Forms: Available as wire, rod, bar, strip, foil, plate, tube, and custom machined parts.

Conflict-Free Material: Manufactures and supplies DRC Conflict Free tungsten alloy materials only.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceIn-stock CapacityQuality Assurance

Xi'an Kefeng Powder Metallurgy Co., Ltd.

Shaanxi, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 1999-07-17Nearest Port: Shanghai, TianjingAverage Response Time: ≤8.27hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF

AI-Powered supplier vetting

SummaryThe supplier is a combined company specializing in manufacturing and exporting tungsten heavy alloy products. It holds ISO9001:2015 certification, has documented quality and service procedures, and supports customization, ODM, and OEM services. Export experience spans 23 years, with 51%–70% of sales from exports and shipments to Europe, America, and Japan. R&D is active, with three engineers, new products reported in the past year, and available design documentation, but no SDK and no R&D patents are reported. Customer service procedures and corrective-action records are documented, while overseas service coverage is listed as zero. Financial information identifies reporting years but provides no assessable financial results. No cooperation with Fortune 500 companies is reported, and production scale or capacity metrics are not provided.

Supplier typeThe supplier is identified as a combined company and describes itself as a manufacturer and exporter specializing in tungsten heavy alloy products. This indicates an integrated manufacturing/export business rather than a purely trading or offshore entity.

CertificationsThe supplier reports ISO9001:2015 certification in its company description, sustainable development information, and management-system information. The repeated certification evidence supports a positive assessment of formal quality-management certification.

After-Sales capabilityThe supplier has written procedures and followed records for service assessment, corrective and preventive actions, and customer complaints. However, overseas service coverage is listed as zero, so the evidence supports procedural capability but not broad overseas service availability.

R&D capabilityThe supplier reports new products during the past year, ODM capability, three R&D engineers, and available design input, output, review, verification, and validation documents. Against this, it reports no available SDK and zero R&D patents; overall innovation activity is evidenced, but patent and SDK capabilities are absent.

Production capacityThe supplier manufactures customized tungsten sheet, plate, foil, and strip, follows uniform finished-product inspection instructions, and reports nine quality-control test equipment items. Export logistics and one-month peak and off-season lead times are stated, but production capacity or output volume is not provided.

Customization capabilityThe supplier explicitly offers customization from samples and designs, produces products according to drawings and requests, and provides ODM and OEM services. These multiple statements directly support strong customization capability.

Client casesThe supplier reports exports to Europe, America, and Japan and states that it provides OEM services for well-known brands. It also reports no cooperation with Fortune 500 companies, so customer experience is evidenced but specific named cases and top-tier corporate references are limited.

Product Q&A

Q:What are the available tungsten to copper ratios?

The most common ratios are WCu 70/30, 75/25, 80/20, and 90/10, with a total composition range from Cu 50 wt.% to Cu 90 wt.%.

Q:Can the product dimensions be customized?

Yes, we offer standard or custom dimensions. Rods range from 1.0mm to 127mm+, and plates/sheets range from 0.05mm to 50mm thickness, or according to customer drawings.

Q:What are the primary applications for copper tungsten?

It is extensively used for EDM electrodes, resistance welding electrodes, electrical contacts, heat sinks, and packaging materials in high-voltage and thermal applications.

Q:What certifications does the manufacturer hold?

Kefeng is ISO 9001 certified and SGS approved, with over 28 years of manufacturing experience ensuring high-quality standards.

Q:What forms are available for copper tungsten products?

Products are available as wire, rod, bar, strip, foil, sheet, plate, tube, blanks, semi-finished parts, and custom finished parts.