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Coils (Wire rods)
a) Low carbon steel suitable for cold drawing
1- These grades are produced according to ASTM and DIN standards.
It is also possible to produce grades with some deviations in analysis on
special request.
2- Selected scrap is charged to the electric arc furnaces in order
to control the impurity elements such as Cu, Cr and Ni.
3- Eccentric bottom tapping and bottom purging systems are employed
at the electric arc furnaces in order to control the slag amount and composition.
4- Silicon and aluminum deoxidation is carried out.
5- Billets are hot rolled in NKK/Japanese-VAI/U.K. rolling combi
mill with narrow tolerances both in size and shape.
6- Fast or retarded cooling modes are achieved at the controlled
cooling conveyor in order to reach the desired mechanical properties and
scale characteristics.
7- Surface oxide is suitable for mechanical descaling and chemical
pickling.
8- Wire rods of 5.5-18 mm are compacted and secured automatically
with four wire ties forming coils of approximately 1500 kg.
Two tags covering the details of the heat are attached.
9- Traceability of the product is ensured at all stages from tapping
to aftersale services with its specific heat number.
10- Certificates comprising chemical analysis and mechanical properties
referring to the heat number are dispatched with delivery.
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