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. The typical thickness of 200 to 240 mm. The maximum width is 1600 mm. 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.

Features of Steel Slab

HUARO (Shanghai) Industrial Co., Ltd. is committed to importing the superior iron and steal resources from different advanced steelmaking countries and areas. 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 steel slab comply with certain international steelmaking standards include DIN EN JIS ATSM and Chinese GB as well. The specifications of the slab will be 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, the squareness is Max.1 % of the width, the concave /convex is 6mm Max and the scarf will be Max.16mm on one side Max.20mm on both sides.

Application of Steel Slab

Usually, the steel slab will be used in the mill's workshop to produce hot-rolled coils and sheets. Steel slab is the basic material of cold rolled, pickled and galvanized coils and sheet products. It can be sold to the steel mill factory for different purposes. HUARO will supply one million tons of slab to the Chinese market and supply to the high quality required factory and industry sector.

Steel Slab Production Process

Steel slab is a kind of semi-finished steel. Its processing process is to pass the molten steel from ladle furnace through the mold of continuous casting machine and cut it into various lengths as per customer demands. The slab has a rectangular cross-section and is used as a raw material in the production of flat products (i.e. hot rolled coils or plates).

FAQ

1. What is a steel slab and how is it used in the steelmaking process?

A steel slab is a semi-finished steel product produced mainly through continuous casting. It typically features a thickness of 150–300 mm, a width of 800–2,000 mm, and lengths up to 12 meters. Steel slabs are reheated and rolled into hot-rolled coils, plates, and other flat steel products used in construction, shipbuilding, energy, machinery, and automotive manufacturing.

2. Can I request custom steel slab sizes or special grades?

Yes. Many mills can produce custom thickness, width, and length, as well as special grades such as:

• Weathering steel

• High-strength structural steel

• Low-temperature steel

• High-performance shipbuilding steel
  Customization depends on mold size and casting capacity.

  
  

3. How can I verify the reliability of a steel slab supplier in China?

Buyers usually check:

• Mill certificates & inspection reports

• Export track record

• Customer reviews

• Ability to provide MTC (Mill Test Certificate 3.1/3.2)

• Compliance with EN / ASTM / ISO standards
  Working with long-term and audited suppliers significantly reduces risk.

4. What is the difference between steel slabs, billets, and blooms?

• Slabs → Wide and flat, used for plates and coils

• Billets → Small square section, used for bars, wire rod, rebar

• Blooms → Larger square/rectangular, used for beams or rails
  Slabs are the primary raw material for flat steel products.