COLD ROLLED STEEL SHEETS

COLD ROLLED

Cold rolled steel sheets offer a variety of outstanding properties, including easy formability and a smooth and clean surface, and are used in automobiles, appliances, furniture and many other everyday items.

Cold Rolling

The thickness accuracy of cold rolled products is determined by the cold rolling process.
Rolling force and strip tension are computer-controlled to minimize thickness deviations during rolling, based on measurements of the strip thickness at the entry and delivery sides of the mill.

Annealing

The formability of products is determined by annealing.  Because cold rolling significantly increases material hardness, making forming difficult, annealing is performed to improve ductility by inducing a recrystallized structure in the steel. As the annealing process, coils are piled and covered by the box and annealed and this is called the batch annealing. The other is the continuous annealing process, in which coils are continuously treated.

Finishing

After skinpass rolling, coils are processed at the recoiling line, where they are cut to produce product coils of the specified weight, or at the shearing line, where they are cut to sheets of the specified dimensions. Product thickness, width, shape, and surface quality are inspected, and mechanical properties are tested using specimens taken at the finishing line.

Cold Rolled Full Hard Products

Manufactured by cold rolling pickled hot rolled sheets.

Supply Programme

Thickness             0,20 - 2,00mm

Width                    700 - 1.300mm

Length                  400 – 6000mm for cut-to-length

Standard              EN 10130:2007, EN 1623:2009, SAE J403:2014

Types                    CRF Coil, CRFC Cut-to-length

 

Cold Rolled Drawing and Deep Drawing Products

Manufactured by cold-rolling, annealing and tempering of pickled hot-rolled products and can be produced as continuous annealed (CA) or batch annealed (BA). It has a wide range of uses for automotive, home appliances and furniture, radiator and commercial chillers, elevators, building and civil works and base metals for various kinds of prepainted steel products.

Supply Programme

Thickness             0,20 - 2,00mm

Width                    700 - 1.300mm

Length                  400 – 6000mm for cut-to-length

Standard              EN 10130:2007, EN 1623:2009, SAE J403:2014

Types                    BCR Coil, BCRK Trimmed, BCRC Cut-to-length, BCRKC Trimmed and Cut-to-length

 

Cold Rolled Fullhard

 

Low Carbon

Ultra Low Carbon

Medium Strength

Strap Production

FDC01, FDC03, SAE 1006, SAE 1008

FDC04

S215G, SAE 1010, SAE 1012, SAE 1015, SAE 1016

TTS215G

Thickness

Min. Width

Max. Width

Min. Width

Max. Width

Min. Width

Max. Width

Min. Width

Max. Width

0,20 - 0,23

700

1100

 

 

 

 

 

 

0,24 - 0,25

700

1169

 

 

 

 

 

 

0,26 - 0,39

700

1250

 

 

 

 

 

 

0,40 - 0,44

700

1250

700

1250

700

1000

700

1000

0,45 - 0,59

700

1270

700

1250

700

1000

700

1000

0,60 - 0,69

700

1270

700

1270

700

1100

700

1100

0,70 - 0,79

700

1270

700

1270

700

1200

700

1200

0,80 - 0,89

700

1270

700

1270

700

1270

700

1270

0,90 - 0,99

700

1270

700

1270

700

1270

700

1270

1,00 - 1,20

700

1270

700

1270

700

1270

700

1270

1,21 - 2,00

700

1270

 

 

700

1270

700

1270

 

Batched Annealing

 

Low Carbon

Low Carbon/Enamelling

DC01, DC03, DC04, CS TB 1006, CS TB 1008

DC01EK, DC04EK

Thickness

Min. Width

Max. Width

0,24 - 0,25

700

1250

0,25 - 0,29

700

1250

0,30 - 0,34

700

1250

0,35 - 0,44

700

1250

0,45 - 1,20

700

1270

 

Continuous Annealing

 

Low Carbon

Low Carbon/Enamelling

DC01, DC03, DC01 EK, CS TB 1006

DC04, DC04EK

Thickness

Min. Width

Max. Width

Min. Width

Max. Width

0,20 - 0,23

700

1100

 

 

0,24 - 0,25

700

1169

 

 

0,26 - 0,27

700

1250

 

 

0,28 - 0,29

700

1250

 

 

0,30 - 0,34

700

1250

700

1175

0,35 - 0,44

700

1270

700

1175

0,45 - 0,49

700

1270

700

1270

0,50 - 0,59

700

1270

 

 

0,60 - 0,80

700

1270

 

 

 

Slitted

Types                    Batch (BCRS) and Continuous (CCRS) Annealed Slitted Coil, Batch (BCRSC) and Continuous (CCRSC) Slitted and Cut-to-length

 

Batch Annealing

Continuous Annealing

Continuous Annealing

DC01, DC03, DC04, DC05, DC06, DC01EK, DC04EK, CS TB 1006

DC01, DC03, DC01EK, CS TB 1006

DC04, DC04EK

Thickness

Min. Width

Max. Width

Min. Width

Max. Width

Min. Width

Max. Width

0,25 - 0,25

700

1100

 

 

 

 

0,26 - 0,26

700

1169

 

 

 

 

0,27 - 0,29

700

1250

 

 

 

 

0,30 - 0,44

700

1250

700

1250

700

1000

0,45 - 0,59

700

1270

700

1250

700

1000

0,60 - 0,80

700

1270

700

1270

700

1100

0,81 - 0,90

700

1270

700

1270

700

1270

0,91 - 1,00

700

1270

700

1270

700

1270

1,01 - 1,10

700

1270

700

1270

700

1270

1,11 - 1,20

700

1270

 

 

700

1270