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4j29 Feni Kovar Expension Alloy Strip

Name: 4j29 Feni Kovar Expension Alloy Strip
Brand: Huona (Shanghai) New Material Co., Ltd.
SKU: 901442925

Shanghai, ChinaHuona (Shanghai) New Material Co., Ltd.

US$23.00

30-99 kg

US$21.00

100-999 kg

US$20.50

1,000+ kg

Product profile

Customization

Available

Classification

Low Expansion Alloy

Density

8.19

Model NO.

Kovar

Resisivity

0.55

Curie Point

400

State

Soft

Brand

4j47

Chemical Composition

Feni47cr

OEM

Yes

Sample

Free

Stock

Seyn

Material

Fe- Ni Alloy

Surface

Smooth and Bright

Condition

Soft

Magnetic Properties

Less Than 230 Celsius Is Ferromagnetic.

Heat Treatment

Done

Thickness

0.1-2mm

Transport Package

Export Packing

Specification

Can discuss

Trademark

HUONA

Origin

Shanghai

HS Code

722699900

Production Capacity

300 Tons / Month

Key features

Low Expansion Alloy: Fe-Ni alloy with thermal expansion compatible with borosilicate glass (~5-6 x 10^-6 /K).

OEM Service Available: We support OEM customization to meet specific customer requirements and branding needs.

Free Sample Offer: Customers can request free samples to test material properties before placing bulk orders.

High Production Capacity: Ensures minimum shipment time for rolled metal products made on the basis of Kovar.

Versatile Applications: Ideal for vacuum tubes, X-ray/microwave tubes, and electronic parts with glass envelopes.

Specific Chemical Composition: Contains Ni 28.5-29.5%, Fe 51.14-54.5%, Co 17-18%, and precise trace elements.

Soft State Condition: Available in soft state with smooth and bright surface, suitable for various processing.

Flexible Thickness Range: Thickness options available from 0.1mm to 2mm to suit diverse industrial applications.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceImporters and Exporters

Huona (Shanghai) New Material Co., Ltd.

Shanghai, China

Business Type: Manufacturer/FactoryExport Year: 2015-12-29Nearest Port: shanghaiAverage Response Time: ≤2.20hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA, EXW, Others

AI-Powered supplier vetting

SummaryHuona (Shanghai) New Material Co., Ltd. is identified as a private manufacturer/factory in China, operating from Shanghai, with production facilities in Xuzhou. It reports multiple management-system certifications, including ISO 9001, ISO 14001, ISO 9000, ISO 14000, and QC 080000. The supplier demonstrates documented service, complaint-handling, corrective-action, quality-assurance, and material-traceability procedures. It offers customization, ODM, and OEM services, including OEM for well-known brands, but has no SDK and reported no new products in the past year. Production information includes three or five production lines in different records and stated product outputs for heating resistance wire, thermal spray wire, and magnesium alloy. Overseas support is limited to North America debugging, with no overseas warehouse, showroom, agent, branch, or offline trade-show participation reported. Financial evidence is insufficient for assessment because the provided entries identify years rather than...

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory, privately owned, and based in China, with its operating province and address in Shanghai. This directly supports its status as a manufacturing supplier rather than only a trading or service entity.

CertificationsThe supplier reports ISO 9000, ISO 14001, ISO 9001, ISO 14000, and QC 080000 certifications under its management-system certification information. These stated certifications provide explicit evidence of formal quality, environmental, and related management-system coverage.

After-Sales capabilityThe supplier has written and followed procedures for service capability, corrective and preventive actions, and customer complaints, and reports quality assurance and material traceability. However, overseas support is limited to North America debugging, with no overseas warehouse, showroom, agent, branch, or offline trade-show participation.

R&D capabilityThe supplier reports six to ten years of R&D engineer experience and offers ODM services, but states that no new product was introduced in the past year and that no SDK is available. The evidence shows some R&D resources but also explicit limitations in recent product development and SDK support.

Production capacityThe supplier reports three production lines in one record and five in another, along with stated output quantities for heating resistance wire, thermal spray wire, and magnesium alloy. It also has five experienced export-trade staff, but does not continuously reconcile quantities for each batch or batch production, indicating a documented production-control limitation.

Customization capabilityThe supplier explicitly provides customization from designs, ODM services, and OEM services for well-known brands. These statements directly demonstrate the ability to support customer-specific and branded manufacturing requirements.

Product Q&A

Q:Is OEM service supported for this alloy?

Yes, OEM service is supported. We offer customization to meet specific customer requirements and ensure minimum shipment times.

Q:What are the main applications of Kovar alloy?

It is primarily used for electroplated conductors entering glass envelopes of electronic parts such as vacuum tubes, X-ray and microwave tubes, and some lightbulbs.

Q:Can I get free samples before ordering?

Yes, free samples are available for customers to test the material properties before committing to a bulk purchase.

Q:What is the chemical composition of 4J29?

It consists of Ni 28.5-29.5%, Fe 51.14-54.5%, Co 17-18%, C 0.03%, Si 0.3%, Mn 0.4%, and other trace elements like Ti, Al, and Cu.

Q:What is the lead time for delivery?

Peak season lead time is one month, while off-season lead time is within 15 workdays.