Pickled steel strip

Pickled Slit strip of highest quality for various applications

Pickled slit strip is the primary product for many different applications at our customers in the furniture, automotive and construction industries. Therefore, excellent and consistent quality and reliability of the product are essential. We are pickling our hot-rolled steel strip in our own facilities and supply it as pickled slit strip or pickled wide strip.

Our pickled slit strip is also used for the in-house production of pickled tubes and profiles . This enables us to guarantee the best quality of the starting material for our tubes and profiles

Why is steel pickled?

During strip production, the cooling of hot-rolled steel strip results in a specific scale layer (= a layer with different iron oxides and thicknesses) on the steel surface, depending on the cooling conditions and steel grade. Before the steel strip can be further processed and refined, this scale layer must be completely removed. Pickling is applied for this purpose.

How does the pickling process work?

At Wuppermann, the steel strip is pickled only with hydrochloric acid. Pickling with hydrochloric acid is more effective and energy-saving than pickling with sulfuric acid.

Hydrochloric acid chemically dissolves the oxides of the scale layer during pickling and removes them completely. The result is a light grey, slightly rough strip surface. The remaining acid residues on the strip surface are rinsed off in a cascade sink. The steel strip is then dried. After pickling and drying, the steel is ideally prepared for subsequent further processing, such as hot-dip galvanizing.

What happens with the acid?

After pickling, used hydrochloric acid is recycled and reused so that fresh acid can be saved. Only small losses during the process have to be added by fresh acid.

Pickling produces a waste product, so-called iron chloride. It can be used further. Iron chloride is the basic material for the paint industry or can be used to generate energy in bio power plants.

Pickled steel for optimum further processing

The demands on the end product are becoming more and more demanding. Quality must therefore start with the pickled steel strip to ensure optimum further processing. The strip that goes directly and thus economically into Wuppermann's own galvanizing and subsequent processing is of selected, consistent quality.

Details of the dimensions, steel grades and tolerances can be found in the fold-out table:

Steel grades

 
Soft steels for cold forming

EN 10111

DD11 - DD14

Steels for use in construction

EN 10025-2

S235 - S355

Steels with higher yield strength for cold forming

EN 10149-2

S315MC - S700MC

Special featuresSpecial steels and steels with special alloys upon request

Dimensions and form tolerances

 
Strip thickness0,95 - 6,00 mm according to EN 10051
Strip widths20 - 1.650 mm according to EN 10051
Special featurestightest thickness tolerances up to +/- 0,02 mm

Surface roughness

 
Skin-passed or cold rerolled surfaceup to 6,00 mm strip thickness
Surface finish upon request (bright/semi-bright/normal/rough)

Rounded strip

 
Strip thicknesses1,50 - 6,00 mm
Edge formupon request