Pickling hot-rolled Sheet

Product Description:

Product parameter:

Product Introduction of Coating Business Division
Color Coated Sheet:
It is made by taking hot galvanized sheet and zinc-iron alloy hot galvanized sheet as the substrate through surface pretreatment, coating one or more layers of liquid coating by roll coating, baking and cooling. The used coatings including polyester, silicon modified polyester, high-durability polyester, polyvinylidene fluoride, epoxy and high corrosion-resisting coating are widely used for building, transport, home appliances, solar energy, furniture, etc. It is mainly used as the side door plate of refrigerators, and shell of DVDs, air conditionings, freezers, and washing machines.
Galvanized Sheet:
Hot galvanized sheet and alloying galvanized sheet have excellent performance, ideal combination property including corrosion resistance, formation and coating, and are mainly used for building, automobiles, metallurgy, and electrical equipment. Galvanized sheet is mainly used for making roof, door and window, roller shutter door, and suspended skeleton in building industry, vehicle shell, chassis, door, trunk lid, oil tank and fender in auto industry, steel sash blank and color coated sheet substrate in metallurgy industry, and refrigerator base, shell, refrigerating chamber, kitchen equipment and other parts in electrical equipment industry.
Cold Rolled Sheet:
Cold sheet has excellent type and surface quality and mechanical property indexes meeting customer demands. It is widely used for galvanized substrate, home appliances, tubbing, automobile, building, enamel, and other industries.
Hot Rolling Pickling Steel Strip
1、Range and Production Capacity

Production line

Product thickness mm

Product width mm

Steel coil weight (t)

Steel coil inner diameter mm

Production capacity 
(10,000t/a)

Push-pull pickling unit

1.8-4.0

800-1,250

≤28

610

65

Continuous pickling unit

1.8-4.5

800-1,280

≤28

610

120

2. Number and Mechanical Property


No.

Tensile test

Yield strength 
Rel (MPa)

Tensile strength 
Rm (MPa)

Percentage elongation after fracture A%

1.8~<2.0

2.0~<2.5

2.5~<3.2

3.2~<4.0

≥4.0

SPHC

 

≥270

≥29

≥30

≥31

≥32

≥32

SPHD

 

≥270

≥32

≥33

≥35

≥37

≥39

SPHE

 

≥270

≥33

≥35

≥37

≥39

≥41

SS330

≥205

330~430

≥26

SS400

≥245

400~510

≥21

SAPH310

 

 

 

 

 

 

SAPH370

≥370

≥255

≥32

SAPH400

 

 

 

 

 

 

SAPH440

 

 

 

 

 

 

Notes: 1. The tensile test specified value in the table is suitable for longitudinal test piece.
2. Tensile test uses sample of L0=50mm, b=25mm, namely P14 sample in GB/T228.

3. Steel strip is delivered in the state of hot rolling.

Cold Rolling Hard Steel Strip
1、Range and Production Capacity

Production line

Mill outlet highest rolling speed m/min

Thickness

Width

Steel coil inner diameter (mm)

Production capacity 
(10,000t/a) 

1450 eight-roller five-rack tandem cold rolling unit

480

0.25~2.0

800~1250

508

55

1200mm six-roller reversible cold rolling mill

1000

0.15~0.5

800~1050

508~530

20

1450mm six-roller reversible cold rolling mill

900

0.2~1.5

800~1250

610

20

1450 six-roller five-rack tandem cold rolling unit

1200

0.22~2.0

800~1280

610

90

Cold Rolling Annealing Steel Strip
1、Range and Production Capacity

Production line

Highest process speed m/min

Thickness

Width

Steel coil inner diameter (mm)

Production capacity 
(10,000t/a)

1# continuous annealing unit

180

0.2~1.2

800~1250

508/610

30

2# continuous annealing unit

200

0.25~2.0

800~1050

508/610

40

2、Number

 No., standard
Application

No.

Executive standard

Description

Ordinary use

DC01(SPCC、ST12)

GB/T
5213-2008

Forming of casing of home appliances including refrigerator, oil tank, and steel furniture, etc.

Stamping grade

DC03(SPCD、ST13)

Steel for punching forming of automobiles, home appliances, buildings, etc.

Deep punching grade

DC04(SPCE、ST14)

Steel for deep drawing forming of head lighting, oil tank, car door and window, etc.

SDDQ

DC05(SPCF、ST15)

Complicated base plate and oil sump

EDDQ

DC06 (SPCG、ST16)

Car door inner panel, complicated base plate, oil sump, wheel casing, front and rear fenders, etc.

Enamel steel

DC01

Bathtub and enamelware

High-strength steel

CR140~300BH

GB/T
20564-2006

Car top plate, base plate, fender, door plate, etc.

CR260/450~420/780DP

CR180~260IF

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