Metal Bar

Hello, we are Dong-A Special Metals Co., Ltd. We manufacture Zircaloy-4 rods from recycled zirconium scrap for use in casting and metal 3D powder applications. This process represents our commitment to a circular economy, converting industrial waste into valuable high-performance materials.


What Is Zircaloy-4?

Zircaloy-4 is a nuclear-grade zirconium alloy, primarily composed of zirconium (Zr), with small additions of tin (Sn), iron (Fe), and chromium (Cr). It is the most widely used zirconium alloy in the nuclear power industry, particularly for fuel rod cladding.

Traditionally, it is processed via rolling or extrusion from ingots, but powder-based technologies are now enabling more precise and cost-effective production methods.


Applications of Powder-Based Zircaloy-4 Rods

Our powder-based Zircaloy-4 rods are ideal for:

- Nuclear fuel cladding tubes

- Structural components in reactors

- Radiation shielding parts


Compared to conventional rolled rods, powder-based rods offer:

- Greater uniformity of properties

- Fewer manufacturing defects

- Potential integration with metal 3D printing, enabling high-speed prototyping and complex geometries


Advanced Melting Using Induction Skull Melting (ISM)

To meet the strict quality standards of the nuclear industry, we use the Induction Skull Melting (ISM) method to melt Zircaloy-4. ISM offers several advantages:

- No crucible contamination, as it forms a solid skull to contain the melt

- Reduces risk of oxide and carbide formation

- Superior purity control, especially for highly reactive metals like zirconium

Compared to Vacuum Arc Remelting (VAR), ISM ensures more uniform internal structure and surface quality.


Supporting a Circular Economy with Zirconium Scrap Recycling

Zircaloy-4 is difficult to recover from spent nuclear fuel, but zirconium machining scrap can be remelted and reused for:

- New fuel cladding tubes

- Reactor structural components

This process supports resource circularity, reduces waste, and promotes carbon-neutral material cycles.


Global Role of Zircaloy-4 in the Nuclear Sector

Despite the emergence of advanced zirconium alloys with improved accident resistance, Zircaloy-4 remains the global standard in commercial nuclear reactors, especially across Asia and Europe.

Its proven performance, compatibility with ISM melting, and recyclability make it an essential material for the nuclear power industry’s future.



#Zircaloy4 #ZirconiumScrap #ISMmelting #NuclearFuelCladding #RecycledZirconium #DongASpecialMetals #Metal3DPowder #CircularEconomy #ZirconiumAlloy #NuclearMaterials

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Contact Us

Homepage : http://www.dongaspecial.co.kr/

Mobile : +82-10-6367-7392

Company Catalog Download :

1) Eng : https://blog.naver.com/dongaspecial/223683563148

2) Kor : https://blog.naver.com/dongaspecial/223683558947

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Product Brochure Download :

1) Eng : https://blog.naver.com/dongaspecial/223683548933

2) Kor : https://blog.naver.com/dongaspecial/223683546036

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"E-mail"

1) sales@dongasepcial.co.kr

2) adenjang@dongasepcial.co.kr

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"Messenger"

1) Whatsapp : +82-10-6367-7392, +82-10-9414-2752

2) Wechat ID : dongaspecial, adenjang

3) Line ID : dongaspecial, bluemanner

4) Kakao ID : dongaspecial, bluemanner

5) OpenKakao : https://open.kakao.com/o/ghgyxcYe

6) Zalo : +821094142752

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Ltd. is selling titanium (titanium) sponge substitutes for research and alloying on its smart store in order to localize the material in Korea. We look forward to your interest and support. Thank you.


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