What are the payment terms and lead times?

Payment terms include LC, T/T, D/P, PayPal, Western Union, etc. Lead time is within 15 workdays off-season and one month during peak season.

29% Ni 17%Co %54 Fe Alloy Kovar Tube

Name: 29% Ni 17%Co %54 Fe Alloy Kovar Tube
Brand: Shanghai Tankii Alloy Material Co., Ltd.
SKU: 2038243582

Shanghai, ChinaShanghai Tankii Alloy Material Co., Ltd.

US$40.00

50-199 kg

US$38.00

200-499 kg

US$35.00

500-4,999 kg

US$25.00

5,000+ kg

Product profile

Customization

Available

Color

Tube

Material

FeNi29Co

Model NO.

Kovar tube

Sample

Small Order Accepted

standard

GB/ASTM/JIS/BIS/DIN

State

Soft 1/4hard 1/2hard hard T-hard

surface

Bright

OEM

YES

MOQ

100kilograms

OD

0.3mm Min.

WT

0.02mm

Length

0.5-3000mm

Carbon Content

Low Carbon

Product Type

pipe/tube

PCD

ET

Hole

Transport Package

Wooden Cases

Specification

SGS

Trademark

TANKII

Origin

China

HS Code

75052200

Production Capacity

5000 T/Year.

Key features

Glass-Sealing Alloy: Nominal 29%Ni-17%Co-54%Fe alloy suitable for sealing to hard glasses and ceramics.

OEM/ODM Accepted: Supports custom orders with OEM services available for specific requirements.

Wide Application: Used in power tubes, microwave tubes, transistors, diodes, and integrated circuits.

Flexible MOQ: Minimum Order Quantity is 100 kilograms, supporting small sample orders.

Multiple Standards: Complies with GB, ASTM, JIS, BIS, and DIN standards for global compatibility.

Various States: Available in Soft, 1/4 Hard, 1/2 Hard, 3/4 Hard, and Full Hard conditions.

Precise Dimensions: OD starts from 0.3mm min, WT from 0.02mm, Length up to 3000mm.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExhibition Experience

Shanghai Tankii Alloy Material Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2008-08-20Nearest Port: Shanghai, NingboAverage Response Time: ≤3.54hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, CIP, CPT, FCA

AI-Powered supplier vetting

SummaryThe supplier is a Shanghai-based limited trading company with 41 employees, associated companies, and a product scope covering nickel-chromium alloys, FeCrAl alloys, thermocouple wire, copper-nickel alloys, thermal spraying wire, Constantan, Manganin, and related alloys. It reports customization from designs and samples, ODM service, and OEM service for popular brands. Service procedures, corrective actions, and complaint-handling records are documented and followed. However, it reports no valid manufacturing contract with affiliated subcontractors, no overseas warehouse, showroom, agent, or branch, no available SDK, and no new products during the past year. Financial-year references are provided, but financial strength cannot be assessed from the available non-financial evidence.

Supplier typeThe supplier is identified as a limited company and trading company located in Baoshan District, Shanghai. Its stated business scope centers on sales of metal materials, alloys, hardware, electrical equipment, and related products, indicating a trading-oriented business model rather than an explicitly documented owned manufacturing operation.

After-Sales capabilityThe supplier has written and followed procedures for service assessment, corrective and preventive actions, and customer complaints. It offers debugging, has in-stock capability, accepts several service quotation and payment methods, and reports service coverage across the Americas, Asia, Africa, and Europe, but has no overseas warehouse, showroom, agent, or branch.

R&D capabilityThe supplier offers ODM services and customization from designs and samples, but reports no new products during the past year, no available SDK, and no ERP-based digital management. Sustainable-development, big-data, and OA capability entries are recorded as zero, providing no positive evidence of structured innovation or digital transformation.

Production capacityThe supplier reports in-stock capability, a one-month peak-season lead time, an off-season lead time within 15 working days, and 50 qualified suppliers. However, it explicitly lacks a valid contract between the factory and affiliated subcontractors, while the company is classified as a trading company; owned production capacity is therefore not established and subcontracting governance presents a stated deficiency.

Customization capabilityThe supplier explicitly provides customization from customer designs and samples, offers ODM services, and reports OEM service for popular brands. These statements directly support capability for design-based and sample-based customization, although no technical scope, equipment, or project examples are provided.

Product Q&A

Q:What is the chemical composition of Kovar tube?

Kovar is a nominal 29%Ni-17%Co-54%Fe alloy. It has low carbon content (Max 0.03%) and specific limits for P, S, Mn, Si, Cu, Cr, and Mo.

Q:What are the main applications of Kovar alloy?

It is widely used for hermetic seals with hard Pyrex glasses and ceramics, in power tubes, microwave tubes, transistors, diodes, and integrated circuit packages.

Q:What standards does this product comply with?

The product complies with GB, ASTM (F15), JIS, BIS, and DIN standards. The UNS number is K94610 and Werkstoff Nr. is 1.3981.

Q:What is the minimum order quantity (MOQ)?

The MOQ is 100 kilograms. Small sample orders are also accepted.

Q:What are the available surface finishes and states?

Surface finish is Bright. Available states include Soft, 1/4 Hard, 1/2 Hard, 3/4 Hard, and Full Hard.