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事业领域

HUARO

Metallic Materials

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Steel Slab

Description of Steel Slab

Steel slab is a thick flat steel sheet rolled and cooled from the CCM machine, it can be further processed. Includes use in the following sectors: structural steels, shipbuilding, pipes, pressure vessels, boilers, heavy metal structures, offshore structures etc. Typical thickness between 200 to 240 mm. The maximum width is 1600 mm. The typical length is 5000-8000mm. The data of chemical contents is C: 0.17-0.195 or 0.165-0.190 Mn: 0.3-0.4 as Q2335B as steel grade for sale. HUARO offers high-quality steel slabs for sale, welcome to consult.

Continuous casting slab production process. The molten steel is continuously poured into the water-cooled copper mold. The slab shell is solidified gradually along the periphery of the mold. When the liquid level of the steel rises to a certain height and the shell solidifies to a certain thickness, the cooling water will be sprayed to cool the slab completely, and the slab will be cut to a certain length according to the steel rolling requirements.

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Features of Steel Slab

Huaruo (Shanghai) Industrial Co., Ltd. is committed to import the superior iron and steel resources from different advanced steelmaking country and area. All steel slab is made with 100% iron ore or DRI sponge iron, which make sure the high quality of the steel since the EAF furnace and Ladle furnace. All products comply with certain international steelmaking standard include DIN EN JIS ATSM and China GB as well. The specifications of the slab will be a 200-250mm as thickness,900-2000mm as width, 6000-11500mm as length. Each standard weight of slab will be 15-25MT. The Width Tolerances will be Plus 20mm/Minus 10mm, according to the standard the Thickness Tolerances will be Plus 5mm/Minus 5mm, the Length Tolerances will be Plus 100mm/Minus 100mm per Length. The Flatness is 7mm/ Meter Max, Camber is 4mm/ Meter Max, Bulding is 6mm Max on both sides, the Square Ness is Max.1 % of Width, the Concave /Convex is 6mm Max and the Scarf will be Max.16mm on one side Max.20mm on both sides.

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Application of slab

Usually the slab will be used in the mills workshop to produce hot rolled coils and sheet. It’s the basic material of cold rolled pickled and galvanized coils and sheet products. It can be sold to the steel mill factory for different propose. Huaro will supply one million tons slab to Chinese market and supply to the high quality required factory and industry sector.

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Steel Slab

Steel Slab Production Procedure

Steel slab is considered as a semi-finished steel product and the processing procedure is put the LF liquid steel through a continuous caster mould, according to the demands, the CCM machine cut into various lengths. The slab has a rectangular cross section and is used as a starting material in the production process of flat products, i.e. hot rolled coils or plates. 

Specification
产品规格和标准

Steel Grade
牌号

Q235B

Thickness Range(mm)
板厚范围(mm)

200,250

Width Range(mm)
板宽范围(mm)

900-2000

Length Range(mm)
板长范围(mm)

6000-11500

Weight Range(MT)
板重范围(MT公吨)

15-25

Width Tolerances
板宽允许误差

Plus 20mm/Minus 10mm
正差 20mm 负差10mm

Thickness Tolerances
板厚允许误差

Plus 5mm/Minus 5mm
正差 5mm 负差 5mm

Length Tolerances
板长允许误差

Plus100mm/Minus 100mm per Length
正差 100mm 负差 100mm 板长

Flatness
板平面度

7mm/ Meter Max
最大 7毫米/

Camber
板拱起度

4mm/ Meter Max
最大 4毫米/

Bulging
板凸起度

6mm Max on both sides
两面最大6mm

Squareness
板垂直度

Max.1% of Width
最大宽度的1%

Concave/Convex
凸面

6mm Max
最大 6mm

Scarf
嵌接

Max.16mm on one side Max.20mm on both sides Width to Depth 6:1
单面最大16mm,双面最大20mm,宽厚比6:1

化学指标 
Chemical Composition

C: 0.17-0.195 or  0.165-0.190
Mn: 0.3-0.4