Surface coated steel strip for complex forming processes

Phosphate-coated bonderized steel strip

We can refine our case-hardening steels and DC grades with a phosphate layer upon request. This is particularly beneficial when high-tensile materials are required which still need to be formed to manufacture the end product. The so-called lubricant layer reduces friction during the forming process, making it possible to form harder materials as well. The lubricant layer also significantly reduces tool wear and enables complex forming operations.

Optimal formability

Many customers greatly value the excellent formability of phosphate-coated steel strip for the production of complex stamped, bent and formed parts such as needle bearings and bucket tappets in wear-freevalve control systems in automobile manufacturing. Our phosphate-coated steel strip is also used in chainsaw and electric drill components and in the powertrains of utility vehicles.

Phosphated surfaces - the lubricant layer

The lubricant layer is manufactured in several steps. It ensures optimal material formability and longer tool service lives.

Galvanized surfaces: corrosion protection, conductivity and optical presentation

Zinc: This electrolytic coating provides excellent protection against corrosion. We deliver zinc coated material in both matte and bright finishes. We also offer optional passivation, phosphate coating or organic coating as topcoats.

Zinc-nickel: Zinc-nickel coating ensures long-lasting protection against corrosion. This coating exceeds the effectiveness of a pure zinc coating fourfold while retaining the same coating layer thickness. In addition, it also acts as a bonding agent.

Nickel: Nickel coating is often chosen for visible components, as it has a highly decorative optical effect. It has high corrosive resistance in alkaline environments and has a high degree of hardness.

Copper: Copper coating provides excellent electrical conductivity and is the preferred coating for electrical components.

Brass: Brass coating is primarily used as a decorative coating.

Pewter: In addition to good protection against corrosion, pewter strip is used to manufacture assemblies with joining requirements. 

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