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ahss classic

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The classical steel with tensile strengths of up to 1,200 MPa and more

For more than 20 years, voestalpine has been developing and producing ahss steels. 

The ultralights ahss dual-phase steels Characterized by low yield strength, high work hardening and tensile strength as well as high uniform and fracture elongation. Their deep-drawing properties are beneficial in complex structural parts, Their balanced property profile is especially noteworthy with respect to deep-drawing properties with simultaneously reduced resistance to edge cracking. Hot-dip galvanized and electro-galvanized surfaces provide the highest corrosion protection, and selected grades are also available for exposed-panel applications. 

The ultralights ahss complex-phase steels Highly convincing while maintaining the narrowest radii and low resistance to edge cracking, thus allowing excellent forming properties in punched edges. They have proven their effectiveness in large-scale serial production as sections or folded components such as stiffeners, sills and chassis components. These steel grades become resistant to corrosion as a result of time-tested coatings such as Z, ZE, ZF or ZM. 

 

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Steel strips

Electrogalvanized steel strip

Electrogalvanized steel strip

Electrogalvanized steel strip made by voestalpine offers highest corrosion protection, best surface quality and excellent processing possibilities.

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Electrogalvanized steel strip

With its excellent properties, electrogalvanized (EG) steel strip is a premium product of voestalpine. The strengths and properties of electrogalvanized steel strip are suited to a wide variety of applications, even beyond the automotive segment. The material exhibits exceptional strengths in terms of strength, coating quality, functionality, formability and joinability.

Highest strength

The many available ahss high-ductility grades reach strengths of up to 1180 MPa. Ultra-high-strength grades with improved formability are available from 980 MPa. In spite of these high strengths, electrogalvanized steel strip is also ideally suited for exposed panels.


Typical applications

  • Rocker panels
  • Tunnels
  • A and B pillars

Best surface and coating quality

The most prominent advantage of electrogalvanized steel strip made by voestalpine is the uniform quality of the surfaces and coatings. Its characteristic properties are ideal for further processing.

  • Minimum zinc layer thicknesses possible
  • One-sided galvanization possible
  • Improved adhesiveness as compared to HDG/Z
  • Especially suitable for new coating strategies as a result of improved coatability
  • Improved adhesive bondability

Extended functionality

The basic material offers many functional advantages, and other properties can be added.

  • Inline phosphating (ZE+P)
  • Temporary corrosion protection
  • Minimized wear
  • Direct coating

Advantages of inline passivation (ZE+C)

  • Improved resistance to transport and warehouse corrosion
  • Good overcoatability
  • Free of Cr IV

Excellent formability

The special forming quality of the material withstands extreme deep-drawing stress. Additionally, the adhesive tendency of electrogalvanized steel strip is significantly lower than that of comparable materials.


Typical applications

  • Large exposed panels in car body design
  • Oil-filter cartridges

Excellent joinability

Thanks to its excellent spot welding and laser brazing properties, electrogalvanized steel strip is ideally suited for joining and leads to significantly lower electrode wear than conventional steel grades.

Typical applications

  • Back hatches
  • Roof and roof attachments
  • Side wall frames

Applications

Electrogalvanized steel strip is versatile and finds its application in a number of different industries. Reflectors for headlights, interior design, room partitions, exposed cable ducts, railings, light reflectors, doors, gates, frames, filter cartridges, oil filters, directly coated components such as radiator covers, claddings and structural members. All one-side-galvanized (joined) components that provide benefits to customers, such as auto roofs, tubes and sections. Exposed panels on white goods such as washing machines, refrigerators and switch cabinets.

2.1.6_F_evb_anwendungsbsp_2
 

 

Functional surfaces

Electrogalvanized steel strip can be given a variety of functional surfaces that further optimize the material.

Surface quality

  • Delivered with one of two surface types: A (formerly O3) or B (formerly O5). 
  • DIN EN 10152 illustrates the quality limits of various surfaces.
  • Same internal sorting standard as for cold-rolled steel strip

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Additional treatments

Additional treatments extend the range of applications as coordinated with pre-defined product requirements of each individual customer.

Further processing

The proximity of the Steel & Service Center to the integrated steelmaking plant in the Steel Division provides unlimited access to unique product and material expertise and offers answers to the most difficult questions.

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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

  • Zinc (Z) for applications subject to average corrosion (galvanized)
  • Zinc-iron (ZF) for corrosion protection with highest weldability requirements (galvannealed)
  • Zinc-magnesium (ZM) for best cathodic corrosion protection (corrender)

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 functional surfaces

Functional surfaces additionally improve 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 
  • Optimized tribology and excellent oil distribution (prelube2)

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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Cold-rolled steel strip

The excellent surface appearance of cold-rolled steels made by voestalpine is convincing. The continuous production process enables high-quality steel strips with narrow thickness tolerances.

Hot-rolled steel strip

Tailored to the specific needs of the customer, the product portfolio of voestalpine ranges from mild steels to meet highest forming requirements to ultra-high-strength steels for the most stringent applications.

Electrogalvanized steel strip

Electrogalvanized steel strip made by voestalpine stands for excellent corrosion protection and the best surface quality.

Functional surfaces

Functional surfaces extend the range of applications as coordinated with pre-defined product requirements of each individual customer.

Further processing

The Steel & Service Center provides unique product and material expertise and offers answers to the most difficult questions.

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Cold-rolled steel strip

Cold-rolled steel strip

Cold-rolled steel strip made by voestalpine combines best surface appearance and narrowest thickness tolerances for a wide range of applications.

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Cold-rolled steel strip

Outstanding surface quality, excellent cold formability and high uniformity of mechanical properties are characteristic of this material.

Portfolio

The comprehensive steel grade program makes cold-rolled steel strip a genuine all-rounder. These materials are used in applications ranging from simple sections to complex deep-drawn parts. Cold-rolled steel strip is used in the household appliance industry in washing machines, dishwashers, tumble dryers, refrigerators, ranges and hot water tanks. Cold-rolled steels are also used in the radiator industry, the automotive industry (car body parts with low corrosion stress), the packaging industry and the tube and section industry.

Steel grades

Cold-rolled steel strip

  • Excellent surface quality 
  • Excellent cold formability 
  • Highly uniform mechanical properties 
  • Narrow thickness tolerances thanks to modern production systems

Cold-rolled enamelable steels

Development continues unabated in this area, and high-performance cold-rolled steels made by voestalpine have become an alternative to OC annealed steels used in numerous applications in the household appliance and sanitation industries.

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Functional surfaces

Functional surfaces extend the range of applications as coordinated with pre-defined product requirements of each individual customer.

Further processing

The proximity of the Steel & Service Center to the integrated steelmaking plant in the Steel Division provides unlimited access to unique product and material expertise and offers answers to the most difficult questions.

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Hot-rolled steel strip

Hot-rolled steel strip

Hot-rolled steel strip made by voestalpine is tailored to specific customer needs, and the product portfolio ranges from mild steels to meet the highest forming requirements to ultra-high-strength steels for the most demanding applications.

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Hot-rolled steel strip

Hot-rolled steel strip made by voestalpine is characterized by high product quality and is a true all-rounder. It is as versatile as its many applications.

Portfolio

Hot-rolled steel strip to meet every customer requirement We supply strip widths up to 1,750 mm and thicknesses up to 20 mm. Our products are available in both pickled and unpickled condition, as slit or wide strip or as cut sheets. Consistently high quality and production within the narrowest tolerances are our claim. Hot-rolled steel strip made by voestalpine is available in a wide variety of grades. A variety of different alloys and rolling programs provide our customers with just the right steel for their specific applications.

Steel grades

  • Mild steels
  • Structural steels
  • Micro-alloyed steels
  • Case-hardening and heat-treatable steels
  • Martensitic steels
  • Complex-phase steels
  • Dual-phase steels
  • Ferritic-bainitic steels
  • Pole and rim steels
  • Steels for enameling
  • Steels for gas cylinders
  • Weather-resistant structural steels
  • Wear-resistant steels
  • High-strength and ultra-high-strength steels

Hot-rolled steel strip 

voestalpine builds on partnerships and highest quality claims:

  • Development of customer-specific special grades based on individual requirements
  • High uniformity of mechanical and chemical properties
  • Narrowest tolerances guaranteed 
  • Consistently high product quality based on precise rolling process in which temperature and forming are precisely matched
  • Material and processing expertise from a single source

Mild, unalloyed steels for cold forming

These steels are generally delivered in accordance with EN 10111. They are used in applications in which formability is more important than strength.

Structural steels

These steels are included in EN 10025. One of their fields of application is in machinery. The steels are characterized by minimum yield strength, a margin for tensile strength and minimum fracture elongation. They are used for light drawing stress, forming and bending.

alform® steels

alform® is a brand name in the voestalpine Steel Division and stands for hot-rolled fine-grained steel with best cold-forming properties and excellent weldability. alform® steels are available in various grades and strength classes. Whether thermomechanically or normalized rolled, as hot-rolled strip or heavy plate, in coils, slit strip or cut sheets, alform® is an indispensable material in mechanical engineering, automotive design and in the processing Industry.

durostat® steels

durostat® grades are wear-resistant steels that feature high hardness achieved through accelerated cooling directly from the rolling heat. They are characterized by a high degree of wear resistance and are especially suited to applications with high mechanical stress and high levels of abrasion.

Case-hardening and heat-treatable steels

Case-hardening and heat-treatable steels pursuant to DIN EN ISO 683-1 and EN 10084 as well as the voestalpine standard are implemented in direct-processing applications or are used for cold re-rolling. These steels generally undergo heat treatment in order to achieve the desired processing and component properties. They are used in applications that must strike an optimum balance between hardness and toughness.

Pole sheets

Pole sheets are thermomechanically rolled steels with guaranteed magnetic properties. Standard grades are pursuant to Euronorm EN 10265:1995 (corresponding to IEC 404-8-5). Ultra-high-strength special voestalpine grades are also supplied.

Hot-rolled enamelable steels

The narrowest tolerances, high material quality and highly specialized application expertise guarantee products that meet every requirement. Combinations of thick hot-rolled steels and thin cold-rolled steels, for example, are often used in industrial silo designs.

Hot-rolled strip next level

We go one step further with hot-rolled Q for the tube and section industry. Q for even more quality than you would expect as a customer. Q for even more hot-rolled strip grades, especially in the tube and section industry. Characteristics that can all be of great importance to customers or just individually. Hot-rolled Q for the tube and section industry is a package full of quality and efficiency improvements for production as well as for the end product.

Kaltwalzer - Warmband mit einem Plus an Qualität

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Functional surfaces

Functional surfaces extend the range of applications as coordinated with pre-defined product requirements of each individual customer.

Further processing

The proximity of the Steel & Service Center to the integrated steelmaking plant in the Steel Division provides unlimited access to unique product and material expertise and offers answers to the most difficult questions.

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