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product corrosion resistance precision nickel alloy expandable alloy kovar 4j29 round rod bar magnetic for electronic application-0

Kovar Alloy

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Corrosion resistance Precision nickel Alloy Expandable alloy Kovar 4J29 round rod bar Magnetic for electronic application

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Product Description

Product Description and Application

kovar is also know as Ni29Co18,ASTM F15
kovar is a typical Fe-Ni-Co hard-glass sealing alloy, which has been used in aviation factories for a long time with stable performance. The alloy has a dense oxide film, which can be well infiltrated by glass. It is the main sealing structural material of electric vacuum devices and mainly used for the glass sealing of electric vacuum components such as transmitter tube, oscillation tube, ignition tube, magnetron, transistor, sealing plug, relay, lead line of integrated circuit, chassis, shell, bracket and etc.

Process Performance and Requirements

Product Fusion Process

Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)
Product Chemical Composition
C
P
S
Mn
Si
Cu
≤0.03
≤0.02
≤0.02
≤0.5
≤0.3
≤0.2
Cr
Mo
Ni
Co
Fe
≤0.2
≤0.2
28.5~29.5
16.8~17.8
Rem
Product Physical Property
Density
8.36g /cm3
Product Tensile Strength
Status code
State
Tensile strength/MPa
R
Soft State
<585
¼I
¼Hard State
585~725
½I
½Hard State
655~795
¾I
¾Hard State
725~860
I
Hard State’
>860
Product Heat Treatment Institution
Grade
Sample Heat Treatment Institution
Average coefficient of linear expansion
α/(10-6/ K)
20-300 ℃
20-400 ℃
20-450 ℃
kovar
It was heated to 900±20 ℃ in hydrogen atmosphere, held for 1h, then reheated to 1100±20 ℃, held for 15min,then cooled to below 200℃ at a speed of no more than 5 ℃/ min
----
4.6~5.2
5.1~5.5
Product Average Linear Expansion Coefficient
Alloy
Average Linear Expansion Coefficient α/(10-6/ K)
Grade
20~200 ℃
20~300 ℃
20~400 ℃
20~450 ℃
20~500 ℃
20~600 ℃
20~700 ℃
20~800 ℃
kovar
5.9
5.3
5.1
5.3
6.2
7.8
9.2
10.2
Productive Process
product corrosion resistance precision nickel alloy expandable alloy kovar 4j29 round rod bar magnetic for electronic application-1
Professional Customization
product corrosion resistance precision nickel alloy expandable alloy kovar 4j29 round rod bar magnetic for electronic application-2
Company Profile
product corrosion resistance precision nickel alloy expandable alloy kovar 4j29 round rod bar magnetic for electronic application-3
Danyang Kaixin Alloy Materials Co., Ltd. was founded on April 18th, 2007, covering an area of 13500 square meters with a registered capital of 20 million yuan. It is a professional enterprise engaged in independent production,research and development of high performance alloy materials such as precision alloy, high temperature alloy, nickel-based special welding wire, corrosion resistant alloy and so on. It is Jiangsu Province private science and technology enterprise, small and medium-sized technology-based enterprise, employee entrepreneurship base, Zhenjiang Harmony Enterprise, 2017
Jiangsu Top 100 high-tech enterprises with the most growth and 2020 South Jiangsu National Gazelle enterprise in Independent Innovation Demonstration Zone.
Our company will add the most advanced 3.5 tons vacuum melting furnace and 5 tons atmosphere protection electroslag furnace to expand 2 nickel-based welding wire production lines, improving the production capacity of the company greatly in 2023. At the same period, the expansion project with annual 2000 tons output of nickel-based welding materials has been started and will continue to increase R&D investment. Since 2020, our R&D investment has reached 10 million.
At present, we have cooperated with Beijing Steel Research Institute Nak to establish the "National Steel Material Testing Center - Joint Laboratory" and cooperated with Jiangsu Provincial Science and Technology to establish Zhenjiang Microwave Communication materials Engineering Center and Jiangsu (Kaixin) Nickel-based Superalloy Engineering Technology Research Center.

From 2022 to 2025, our company will gradually transform from civilian to military, from mass products to science and technology products, and gradually move to the ranks of "high, refined, sophisticated, specialized and special" production. To this end, we will combine the existing research and development, production, testing and etc advantages to continue to expand our research and development team, continuing to make progress from exploration and testing.
product corrosion resistance precision nickel alloy expandable alloy kovar 4j29 round rod bar magnetic for electronic application-4
1. who are we?
We are based in Danyang, Jiangsu, China founded on Apr 18th, 2007, named Danyang Kaixin Alloy Materials Co., Ltd, which is a professional engaged in the independent production and R&D of high performance alloy materials such as Precision Alloy, High-temperature Alloy, nickel-based welding wire and etc high performance alloy materials. We have more than 150 employees,including more than 20 research & development personnel and more than 25 management personnel. Our products are applicable to aerospace, Marine valves, ships, petroleum pipeline, power station desulfurization, communications electronics, Solar heat accumulation, new energy and etc. As a manufacturer, we always maintain the principle of quality first, and our products have begun to be quickly sold all over the world.

2. how can we guarantee quality?
We have our own production, inspection equipment and clear division of labor among functional departments;
We have passed ISO9001:2015 quality management system;
Establish joint laboratory with Beijing Steel research Nak with regular correction of inspection equipment and actively prepare
for CNAS accreditation qualifications;
Raw material suppliers have been reviewed at multiple levels, including on-site audit, document audit, etc to ensure the stability and reliability of raw materials quality;
Attach great importance to site management, 6S has been successfully implemented for many years with high visualization degree and quality risk reduction;
Always a pre-production sample before mass production;
Always final Inspection before shipment.


3. what can you buy from us?
Mass-production products(Inconel718,Inconel X-750,Inconel625,Inconel751,Hastelloy C276,HatelloyX,Nimonic80A,Kovar,Invar,Alloy42,ERNiCrMo-3,ERNiCrMo-4,NiFe55,NiFe60 ,ERNiCr-3,ERNiCu-7)from the production of standard materials which is in line with ASTM,GOST,GB/T.Most products are ROHS tested and one of the Inconel625 welding wire has obtained ABS certification.
Accept customized products: Our existing 50kgs Vacuum induction furnace and 100kg electroslag remelting furnace can achieve new product development for our customers.


4. why should you buy from us not from other suppliers?
①We are the source factory with production and testing capabilities
②We have passed ISO9001:2015 quality management system standard and our process is controllable
③Our delivery time is controllable
④Perfect after-sales service that each customer will have a special documentary personnel, who is responsible for communicating with customers, including delivery, quality, technology and other details.

5. what services can we provide?
Participate in and assist material application end anomaly analysis and improvement plan, such as poor welding, stamping cracking, deformation and etc a series of back-end application problems.
We are proactive and responsive. General quality problems will be replied and dealt with on the same day, batch quality anomaly analysis report will be provided within three days, investigation and processing on-site will be arranged according to the actual situation.
Make full use of the technical team advantages according to the customer's use occasion to recommend more suitable products and make fewer detours for customers.
Accepted Delivery Terms: FOB,CFR,CIF,EXW,Express Delivery;
Accepted Payment Currency:USD,EUR;
Accepted Terms of Payment: T/T,MoneyGram,Credit Card,PayPal,Western Union;
Language Spoken:English,Chinese,Spanish,Japanese,German, Arabic,French,Russian,Korean,Italian.

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