HANDU STEEL

PRECISE COLD DRAWN TUBE PRODUCTION

ERW PIPE PRODUCTION

PROCESSING PARTS FOR AUTOMOTIVE

Welcome to Handu Steel Co.,Ltd. Discover all of Handu's products including cold drawn tubes, ERW tubes and more. We have synergy effect to get the best quality and top competitiveness through integrated production system.

Handu Steel was established in 1993.
We have grew up producing cold drawn steel tubes.
It was started in Dangjin factory.
Currently, there is a Jinju Ibanseong Plant (Jinju 1st Plant) that produces ERW.
Also, there is Jinju Sabong Plant (Jinju 2nd Plant), which was established to produce more cold drawn tubes.

You can find the range of production on our Web page (http://handu.co.kr/en/)
We are able to meet customer's requirements such as ASTM, KS D 3517 and JIS G 3445.

Handu Steel uses dies and plugs to produce tubes of very precise size.

We have IATF 16949, ISO 9001, KS , JIS, certificates. We can verify the quality of our products through our certificate.
In addition, we exported goods not only in Korea but also globally recognized. Our products are available in many application, including automotive parts, mechanical components, and so on.

Process

Receiving raw materials (MOTHER TUBE)
POSCO or Hyundai Steel coil is being used to make the MOTHER TUBE from the JINJU 1st Plant of Handu Steel to ERW.

POINTING
Several sizes of the ends of the tube (mother tube) are reduced in size by swaging
(This operation allows the tube to be inserted into the dies)

HEAT TREATMENT
To match the hardness and modify the microstructure of customer needs.

SURFACE TREATMENT
Clean pipes through the process of flushing, acid and film.
In addition, DRAWING OIL is applied to facilitate COLD DRAWING.

DRAWING
At room temperature (COLD DRAWN). DRAWING MACHINE pulls the TUBE out of the plug and the die. This produces precise size tubes.

STRAIGTENING
This process make the tubes straighter (straightness)

CUTTING
Use the saw to cut the pipe to the size desired by the customer.

E.C.T
You can find even small defects by using EDDY CURRENT TEST. Use this equipment to examine the best quality products.

Our company is directly connected to POSCO and Hyundai Steel.
We buy the coil directly and produce the ERW tube for the mother tube of the COLD DRAWING TUBE.