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Handu steel, Manufacturing process of ERW tube

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.

Receiving raw materials (COIL)
Receiving the coils from POSCO or HYUNDAI STEEL.

SLITTING
Slitting the coil to make a tube.
The width of the slitting is determined according to the dimensions of the tube.

UNCOILING – LEVELLING – FORMING – WELDING – WATER COOLING – SIZING – CUT OFF –END FACING – EDDY CURRENT TEST- PACKING

Forming the plates into tubes, weld the tube-shaped plates into round tube.
E.C.T will detect faults and ship them with approval from the QUAILITY team.

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.

Mother tube of cold drawn tube, introduce the manufacturing process of ERW tube.

Uncoiling

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