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Cold Rolling Line and Hot Rolling Line

Cold rolling production line

The 1380mm cold rolling production line with capacity of 600,000 tons, can produce the plate in specifications of 0.12-1.2mm*800-1250mm. The production line adopts advanced all hydraulic adjustment system ,leading to flexible control and stablequality. In addition,the line adopts thickness gauge to realize AGC plate thickness automatic conetrol in order to ensure quality. Cold rolled coil has excellent shape,good surface quality,high surface smoothness,It is easy to be coated and has different varieties,Cold-rolled coil is widely used in galvanizing ,household appliances, Cooper making,automotive,construction industry and enamel industry. 

Use

Material

Yield Strength

Tensile strength

Elongation %

Hardness

180° cold bending

Tin plated substrate

Q195L

-

≥380


T2.5-T3

-

Chrome plated substrate

Q195L

-

≥400


(HR30T)65-70

-

General use

SPCC

≥230

270-400

≥42

-

Intact, no cracks

Q195L

≥275

300-400

≥40

-

Intact, no cracks

Enamel materials or stamping parts

SPCC

≥230

270-360

≥44

-

Intact, no cracks

08AL

≥240

270-360

≥4

-

Intact, no cracks

Q195L

≥275

300-380

≥42

-

Intact, no cracks

Stamping

SPCC

≥220

270-340

≥45

-

Intact, no cracks

08AL

≥220

200-270

≥46

-

Intact, no cracks

Q195L

≥260

300-340

≥44

-

Intact, no cracks

DIN EN 10130, 10209 and DIN 1623

Cold rolled steel is also part of our product portfolio. Cold rolled steel is excellent for cold forming. This product group assigned the grades DC01 to DC07, DC01EK to DC06EK, DC03ED to DCO6ED and S215G to S325G. The grades are classified according to the maximum permissible yield strength and can be subdivided as follows. DC01-This grade can be used for simple forming work, for example Bending, embossing, beading and pulling are used. DC03 - This grade is suitable for forming requirements such as Deep drawing and difficult profiles suitable. DC04 - This quality is suitable for high deformation requirements. DC05-This thermoforming grade is suitable for higher forming requirements. DC06-This special deep drawing quality is suitable for the highest deformation requirements. DC07 This super deep drawing quality is suitable for extreme deformation requirements. 

Quality

Testing direction

Material-No.

Yield point Rp0,2 (MPa)

Tensile strength Rm (MPA)

Elongation A80 (in %) min.

r-Value 90° min.

n-Value 90° min.

Old Description

DC01

Q

1.033

≤280

270 - 410

28



St 12-03

DC03

Q

1.0347

≤240

270 - 370

34

1,30


St 13-03

DC04

Q

1.0338

≤210

270 - 350

38

1,60

0,18

St 14-03

DC05

Q

1.0312

≤180

270 - 330

40

1,90

0,20

St 15-03

DC06

Q

1.0873

≤170

270 - 330

41

2,10

0,22


DC07

Q

1.0898

≤150

250 - 310

44

2,50

0,23


Enamelled grades

The steel grades DC01EK, DC04EK and DC06EK are suitable for conventional single-layer or double-layer enamelling. The steel grades DC06ED, DE04ED and DC06ED are suitable for direct enamelling as well as for enamelling according to the two-layer / one-firing method and for special applications of two-layer enamelling for low-distortion enamelling.

Quality

Testing direction

Material-No.

Yield point Rp0,2 (MPa)

Tensile strength Rm (MPA)

Elongation A80 (in %) min.

r-Value 90° min.

DC01EK

Q

1.039

≤270

270 - 390

30


DC04EK

Q

1.0392

≤220

270 - 350

36


DC05EK

Q

1.0386

≤220

270 - 350

36

1,50

DC06EK

Q

1.0869

≤190

270 - 350

38

1,60

DC03ED

Q

1.0399

≤240

270 - 370

34


DC04ED

Q

1.0394

≤210

270 - 350

38


DC06ED

Q

1.0872

≤190

270 - 350

38

1,60

 

Quality

Testing direction

Material-No.

Yield point Rp0,2 (MPa)

Tensile strengthRm (MPA)

Elongation A80 (in %) min.

DIN 1623 T2 (old)

S215G

Q

1.0116G

≥215

360 - 510

20

St 37-3G

S245G

Q

1.0144G

≥245

430 - 580

18

St 44-3G

S325G

Q

1.0570G

≥325

510 - 680

16

St 52-3G

Surface type

Surface A

Mistakes such as pores, small grooves, small warts, slight scratches and a slight discoloration that does not affect the ability to reshape and adhere to surface coatings are permitted.

Surface B

The better side must be free from defects so that the homogeneous appearance of a quality finish or an electrolytically applied coating is not impaired. The other side must at least meet the requirements of surface type A.

Surface finish

The surface finish may be particularly smooth, dull or rough. If no details are given when ordering, the surface finish will be delivered in a matt finish. The four surface finishes listed correspond to the center roughness values in the following table and must be tested in accordance with EN 10049. 

Surface finish

characteristic

Average surface finish(boundary value: 0,8mm)

Special flat

b

Ra ≤ 0,4 µm

flat

g

Ra ≤ 0,9 µm

Matt

m

0,60 µm ˂ Ra ≤ 1,9 µm

rough

r

Ra ≤ 1,6 µm

Hot Rolling Line

Hot-rolled coil is a development of the varieties of steel the current markei demand many concentraced in the automobile industry,compressor industry,machinery manufacfuring,processing and dist

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CONTACT US

Contact: Ryan Sun

Phone: +86-17354364562

Tel: +86-17354364562

Email: rfq@babsteel.com

Add: Building 2, No. 1588 Youyi Road, Baoshan District, Shanghai

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