Steel Division

phs-directform®

phs-directform®

The pioneer in galvanized, press-hardened components produced in the direct forming process

phs-directform®, the world novelty developed by voestalpine, is directly hot-formed, hot-dip galvanized steel strip to be used in corrosion-resistant light-weight components for the automotive industry. The simple process steps of component manufacturing with phs-directform® are convincing when compared to those of phs-ultraform®. phs-directform® is suitable for pressing components in existing direct-process press-hardening lines. 

 


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Steel strips

Hot-dip galvanized steel strip

Hot-dip galvanized steel strip

Hot-dip galvanized steel made by voestalpine is characterized by high corrosion resistance, excellent working properties and a wide spectrum of applications.

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Hot-dip galvanized steel strip

An excellent all-rounder

Hot-dip galvanized steel made by voestalpine is characterized by high corrosion resistance, high-quality appearance, excellent working properties and a wide spectrum of applications. The portfolio of steel grades ranges from super deep-drawing grades to grades with highest strengths (advanced high-strength steels). Depending on customer requirements, voestalpine supplies a comprehensive range of available widths and thicknesses with tailor-made metallic coatings. A variety of surface finishing treatments also make it possible to extend the range of applications. voestalpine supplies high-strength steels with unique exposed-panel quality and offers a ZF coating for this purpose. The world's only hot-dip galvanized press-hardening steels made by voestalpine round off the extensive portfolio.

Materials for cold forming

Some steel grades are available as galvanized hot-rolled strip:

  • Hot-rolled low-alloyed or microalloyed steels
  • Hot-rolled ferritic-bainitic steels
  • Hot-rolled complex-phase steels

Materials for hot forming

Press-hardening steels for hot forming are available in various strengths and are coated with zinc or zinc-iron. Best crash behavior, high dimensional accuracy and very good joining properties are the hallmarks of components made of these materials.

Metallic coatings

Metallic coatings Z and ZM are available with normal (N) and small spangles (M). The surface of zinc-iron coating is spangle-free. Upon customer request, voestalpine supplies different zinc coatings per side (differential galvanizing).

corrender is the high-performance zinc-magnesium-aluminum coating made by voestalpine.

This surface treatment provides excellent corrosion protection and processability, offering a high-performance alternative to conventional protective coatings for hot-dip galvanized steel strip. Corrender has been supplied in series since 2007, and voestalpine has established comprehensive product know-how and expertise in this area.

Coating
Thickness/mm
Width max./mm
Coating
Z and GI0.45 – 4.001730Z70 - Z600
ZF and GA0.45 – 2.301730ZF70 - ZF140
ZM (corrender)0.45 – 2.301730ZM90 - ZM200

"At the Linz site, we manufacture a very extensive product mix in five different hot-dip galvanizing lines. We apply zinc coatings in various surface qualities on mild to high-strength steel grades. Our team of specialists meets the challenge with a high level of commitment and quality awareness every single day. We set the standards with additional chromium-free and environmentally friendly treatments such as clearcover® or multiface®.

Maximilian Kaiser, Main Process Manager, Hot-dip Galvanizing

Surface quality

  • As-coated surface (A)
  • Improved surface (unexposed and B)
  • Best surface (exposed or C) for special requirements such as exposed panels (IF steels) in the automotive industry for additional benefits:
  • Minimum waviness
  • High contour sharpness in reflections
  • Also for ZM (corrender coatings)
  • Optimum forming properties
  • Efficient painting
Design for Z and ZM
Mean roughness value Ra [µm]
Standard0.6 – 1.9
Roughness: especially smooth0.5 max.
Roughness: smooth0.9 max.
Special option: half matt0.7 – 1.3
Special option: matt1.3 – 1.9

Numerous additional treatments

Subsequent surface treatment additionally improves the existing product properties in comparison to the high-quality base material and provides solutions to special applications:

  • Anti-fingerprint (multiface®) for the household appliance and construction industries
  • Chemical passivation and/or corrosion protection oils protect against white rust formation and are free of chromium. (clearcover®)
  • Forming aids such as a phosphating or passivation layer (dryform®)
  • Optimized tribology and excellent oil distribution (prelube2)
Zusatzbehandlungen - Übersichtsbild

Further processing

Hot-dip galvanized steel strips available in a wide range of widths and lengths:

  • Wide strip
  • Slit strip (slit)
  • Cut-to-length sheets
  • Blanks

Supply pursuant to EN 10346 and VDA 239100 Deviations upon agreement.


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