Cold Rolling Mill

The Cold Rolling Mill

The state of the art Cold Rolling Mill, with an annual capacity of about 30,000 ton, consists of the following units:

1.Combined Single Stand Quarto CVC Reversing and Skin Pass Mill (SMS-DEMAG and Siemens)

2.High Convection Hydrogen Annealers (Batch Annealing, LOI)

3.Steel Service Center: inspection, slitting, cross cutting and side trimming (Pro/Eco)

Specialties:

1. Bright surface

2. The reversing cold rolling mill is equipped with automatic thickness (½ DIN EN tolerance), tension and flatness measuring and control, thus ensuring adherence to the tightest tolerances.

3. The recrystallization annealing process in the high convection hydrogen annealers guarantees stable and proper mechanical properties all over the entire strip width and length as well as high strip cleanliness.

4. The light skin passing (dry and wet) suppresses the yield-point elongation, with the result that during subsequent forming processes the sheet can be deformed without the occurrence of Lüders lines. In addition, the strip flatness is improved.

5. The production of cold rolled sheets is rounded off by the finishing stage. Depending on the order specifications, the strip is cut into sheet lengths, slit into slit strip, or recoiled and trimmed for delivery as wide strip.

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Rolled Steel

Cold Rolled Coil
Type of steel Product			Steel Grade			Thickness (mm)		Width (mm)
Mild unalloyed steel for cold forming			DC01 / FeP01 ( CQ/DQ)			min 0.5		min 830
DIN EN 10130			DC03 / FeP03 ( DQ/DDQ)			max 3.0		max 1,050
From Commercial Quality (CQ) to			DC04 / FeP04 ( DDQ/EDDQ)			min 0.6		min 1,051
Extremly Deep Drawing Quality			DC05 / FeP05 ( EDDQ/ESDDQ)			max 3.0		max 1,250
(EDDQ)						min 0.7		min 1,251
						max 3.0		max 1,550
						min 0.5		min 830
General Structural Steels			St37-2G / S235 JR			max 3.0		max 1,050
DIN EN 1623 part 2			St37-3G / S235 J2G4			min 0.6		min 1,051
DIN EN 10025			St44-3G / S275 J2G4			max 3.0		max 1,250
(DIN 17100)			St52-3G / S355 J2G4			min 0.7		min 1,251
						max 3.0		max 1,550
High Strength Low Alloyed Steel			H240 LA ( ZSTE260 )			min 0.7		min 830
( HSLA Steel, micro alloyed)			H280 LA ( ZSTE300 )			max 3.0		max 1,250
DIN EN 10268			H320 LA ( ZSTE340 )			min 0.8		min 1,251
( SEW 093 )			H360 LA ( ZSTE380 )			max 3.0		max 1,550
Black Plate *						min 0.2		min 830
						max 0.5		max 1,030
Other Steel grades and Specifications can be rolled according to customer's request. Coil inner diameter available with 508 mm and 610 mm. Max Coil weight 20t; Inner diameter 610 mm ; max outer diameter 1,650mm. Bright surface .
Coils can be slit / cut to length as the following :
product	Thickness (mm)			Width (mm)		Length (mm)
	Min	Max		Min	Max	Min	Max
Slitted Coils	0.70	6.00		142.00	190.00	Coils
Black Plate *	0.20	0.50		760.00	1,500.00	1.00	4.00
Other Plate	0.70	6.00		760.00	1,500.00	1.00	4.00

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