Billet rolling
Rebar manufacture
Manufacture of the drawing stock
0
Tons
The continuous cast square billets (nominal cross-section from 130*130 mm, length: 12,000 mm) coming from the Melt Shop serve as a semi-finished product for the manufacture of rolled products in the small-section 350 Mill and on the 210 Wire Mill.

The stock is charged into the reheating furnace with an estimation of a billet weight. The metal is heated in the reheating furnace to 1,100 °C — 1150 °C (hot working temperatures). Removal of scale that was formed during heating on a water descaler.

210 Mill
The 210 Wire Mill is used for the manufacture of steel wire rods and coiled ribbed steel bars.
Continuous rolling in the mill roughing train, intermediate train, and a finishing train, in a double-stand modular block, and finally in the ten-stand high-speed block where the finished section is formed with the rolls of the last stand.
Depending on the specified characteristics of the drawing stock or ribbed steel bars, the product goes through the controlled two-stage cooling (Danieli Structure Control) in water cooling sections and on the air cooling roller conveyor.
The loops of the drawing stock or ribbed steel bars formed with a laying head are laid in coils in the coiler's pit.
In the finishing section, coils are subjected to visual inspection. Any defective or uncooled loops are removed from the front / rear end. SUND BIRSTA bindingand strapping machines are used for drawing stock/ribbed bars packaging.
Next stage: a coil is measured on commercial scales, labeled with an ID label (tag), and transported to the warehouse / shipped to the customer.
350 Mill
Hot-rolled round, square or hexagonal steel rolling products and ribbed steel bars are manufactured in the small-section 350 Mill.
Continuous rolling in roughing, intermediate and finishing trains to manufacture 20 – 40 mm sections; and an additional reduction in the six-stand single block to manufacture 8.0 – 18 mm sections.
To ensure the required characteristics of rolled products and ribbed steel bars, the stock goes through a controlled QTB process on the water cooling stage.
The product is cut to length so that it could fit a walking-beam cooler. Natural coolingof bars on the cooler during walking, packaging according to the bar quantity/weight, custom cutting to length. Final laying-up, packing and bundling.
Next stage: a package is measured on commercial scales, labeled with an ID label (tag), and transported to the warehouse / shipped to the customer.
Rebar
350
Mill
Bars
Diameter,
mm
8–40
GOST 34028-2016
GOST 5781-82
DIN 488-2009
BS 4449-2005
Steel Grades
A500C, A240C, A400, A800, B500B
210
Mill
Coils
Diameter,
mm
6–20
GOST 34028-2016
GOST 5781-82
DIN 488-2009
BS 4449-2005
Steel Grades
A500C, A240C, A400, A800, B500B
Wire rod
210
Mill
Coils
Diameter,
mm
5,5–20
GOST 30136-95
TU 14-1-5283-94
ASTM A510/A510M
Steel Grades
ST1SP/PS, ST3SP/PS, SAE1005, SAE1006, SAE1008, SAE1010, SAE1011, SAE1012, SAE1013, SAE1015, SAE1016, SAE1017, SAE1018, SAE1020, SAE1021, SAE1023, SAE1026, SAE1029, SAE1030
SQUARE
Square bars
side,
mm
10–30
GOST 535-2005
Steel Grades
ST3SP/PS
HEXAGONAL
Hexagonal hot rolled bars
Inscribed circle diameter, mm
12-30
GOST 535-2005
Steel Grades
ST3SP/PS