Steel Division


corrender® is a zinc-magnesium-aluminum coating made by voestalpine.

Powerful protective layer

Excellent corrosion protection
A striking feature of corrender® is the high-performance corrosion protection as opposed to conventionally galvanized steel strip. The significantly higher protective effect of corrender® results in a thinner metallic coating of zinc.

Excellent workability
corrender® also convinces through increased efficiency in processing and leads to a significant reduction in production costs. The potential can be utilized more effectively than ever before: Low zinc abrasion, excellent deep-drawing properties, low friction, the associated low oil consumption and very high profiling capacity all result in excellent processing properties.

High-performance alternative
The superior corrosion protection of corrender® opens up several options: new markets that require better protection with the same thickness or significant savings with the same protection.

Maximum advantage

Maximum protection

The excellent corrosion protection of zinc-magnesium coatings is well known. corrender® takes it one step further. corrender® is a perfectly coordinated coating that is superior to conventional zinc-magnesium coatings and provides a higher level of corrosion protection.

Maximum processability

voestalpine offers broad process expertise in production. In collaboration with process specialists, corrender® was developed with a view to maximizing efficiency. The result is a product with the lowest zinc abrasion, excellent deep-drawing properties and maximum profiling.

Maximum experience

voestalpine is regarded as a pioneer in the production of zinc-magnesium-aluminum alloys on the European market. This success story began in 2007 with the serial supply of corrender®. Numerous laboratory tests, worldwide exposure testing, large-scale plant trials and customer applications, experts at voestalpine have established comprehensive product understanding and specialist knowledge.

Steel grades and coating groups

corrender® is available from ZM 70 g/m² to 310 g/m² and in all conventional steel grades used in the automotive industry. Products range from mild steels and bake-hardening grades to high-strength and ultra-high-strength steels.

Available dimensions

Tabelle corrender

Indicated values are standard references. Limitations are possible depending on thickness.


Salt spray test

The corrosion protection of corrender® is significantly higher than that of conventionally galvanized steel strip, even in formed condition.

In heavily acidic environments and under alkaline stress, corrender® also exhibits significantly increased protection.

voestalpine corrender - Salzsprühtest

Outstanding results of worldwide exposure tests

In order to demonstrate the performance of corrender® under natural conditions, corrender® samples and samples of conventionally galvanized steel were exposed in 14 different locations worldwide. These exposure tests were conducted in collaboration with the French Corrosion Institute to ensure that differing temperatures, precipitation volumes, humidity and pollution levels (SO2 and NO2) and distances to the ocean were taken into due consideration.

voestalpine corrender - weltweite Auslagerung

65% higher level of protection

After one year, corrender® loses a significantly smaller amount of mass at each of the worldwide locations and thus higher protection against corrosion than conventionally galvanized steel strip. An average improvement of 65 % was determined across all the locations, whereas the protection level was increased by more than 80% at some of the places. The increased level of protection was not lower than 40% at any of the locations.

voestalpine corrender - höhere Schutzwirkung
voestalpine corrender - Tabelle zur höheren Schutzwirkung

During the design of the steel structure, compliance with all relevant instructions pertaining to protecting the structure from corrosion is mandatory (see Reference Sheet 121:2003 of the Steel Information Center, Corrosion Protection Systems for Sheet Steel Components and other instructions). Standing water, dripping moisture, impurities and contact corrosion must be avoided through composite construction.

Please note that no warranty or guarantee against corrosion damage can be derived from this table. Users shall be responsible for the planning and design of their steel structures (and corrosion protection).


Contact Person

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

  • 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.

Width max./mm
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 
  • 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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Tube and section industry
Tube and section industry

Tube and section industry

Tubes and sections are used in many industries in a wide range of applications, and voestalpine is very familiar with them.

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Tube and section industry

Tube and section expertise

The Processing Industry subsegment of the Steel Division supplies high-quality steel strip products for the production of tubes and sections. The wide range of steel grades and high level of processing expertise at voestalpine provide the optimum foundation for individual applications that are tailored to your needs. Despite all the diversity, one thing always remains the same: You will find voestalpine quality in every product that leaves our plant.

A portfolio full of quality

Steel strip made by voestalpine keeps its promise: Highest quality standards in every respect. Quality lays the foundation for excellence in your products, and that is why quality is our highest priority. As a leader in steel products, voestalpine offers manufacturers of tube and section products both manufacturing and processing expertise from a single source. This expertise is the basis for a diverse product portfolio, the highest level of consulting professionalism and, above all, maximum consistency in every matter of quality.

Rohr-und-Profilindustrie - Ein Portfolio voller Qualität
Rohr- und Profilindustrie - Weniger Gewicht, mehr Leistung

Less weight, higher performance

Highly innovative industries such as the automotive industry place high demands on the tubes and profiles used in many different applications, whether it be a seat rail, a strut, in the car body or the frame. In addition to different functions, they all have one demand in common: It always has to be simplest solution possible. High-strength and ultra-high-strength steels made by voestalpine make a very special contribution here.

Complexity becomes simple

Materials customized by voestalpine to make tubes and sections can be used to manufacture highly complex structures. The specialized technical specialists at voestalpine have a very high degree of material and processing expertise in the field of tubes and sections. In collaboration with business partners, voestalpine has developed solutions that achieve much more than merely meet the requirements.

Rohr- und Profilindustrie - Komplexität wird einfach
Rohr- und Profilindustrie - individuelle Prozessplanung

Individual process planning

Many decades in steel production and processing have made one thing clear: Together we can achieve more. More consistency, more efficiency and above all more quality. As a voestalpine customer, you benefit from expert advice along the entire value chain. Our experts help you set the right course for maximum quality as early as the product design stage and help you keep quality management on track throughout the production process.

Continuous product and service quality

Highest consistency characterizes the product quality of voestalpine as well as its loyalty to delivery deadlines. Tighter production cycles require optimized production processes, which in turn depend on reliable supply chains. As a supplier of top-quality steel products, voestalpine offers you competent service and reliable time management. Adherence to the jointly defined delivery targets ensures that your products are manufactured right on time.

Rohr- und Profilindustrie - Konstante Produkt- und Servicequalität
Rohr- und Profilindustrie - Vielseitiges Gütenportfolio

Versatile portfolio of steel grades

voestalpine is one of the world's leading suppliers in steel production and processing. As part of the Steel Division, the Tube and Profile Industry segment can draw on a unique range of steel grades which, based on your requirements, are the materials used in highly specialized steel strip products. The expertise of voestalpine is built on a strong foundation: Decades of experience. The highest quality standards have become the norm at our company.


Hot rolled steel strip—next level

The quality of hot-rolled steel strip made by voestalpine is convincing. With hot-rolled Q, voestalpine offers quality properties at an even higher level. Thanks to advanced plant operation, hot-rolled steel strip can now be customized to an even greater extent and can be geared to specific quality requirements. The high customizability of hot-rolled Q enables customers to achieve the best material properties for their applications. This puts you one step ahead, especially in the tube and profile industry.

Kaltwalzer - Warmband mit einem Plus an Qualität
Rohr- und Profilindustrie - Power up your steel surface

Power up your steel surface?

Surface treatments made by voestalpine A multifaceted plus in the functionality and quality of steel strip. As a market-leading company, it is not enough for voestalpine to only manufacture products with outstanding material properties. Innovative surface treatments lead to an improvement to the existing properties when compared to the base material. They extend the fields of application and generate additional benefits that can be tailored to individual customer requirements.


Steel & Service Center

As a works-based SSC Group in the voestalpine Steel Division, we are the center of competence for the preprocessing of steel strip and heavy plates. Maximized supply security, on-time delivery performance and customer proximity are very important to us: We work hand in hand with our customers to ensure optimized solutions and added value.

Rohr- und Profilindustrie - Steel & Service Center
Rohr- und Profilindustrie - Spaltband mit neuer Stärke

Slit strip with new strength for new lightweight designs

One of the highest priorities of voestalpine is to make steel available for groundbreaking applications with ever continuing innovation. An important step in this direction has now been taken with superslit, the most modern hot-rolled strip slitting line in Europe. Many new possibilities have become available in 2021 in the field of high-strength hot-rolled steels.


corrender is the alternative to classic galvanized steel strip.

The application of corrender, hot-dip galvanized steel strip with a zinc-magnesium-aluminum coating, opens up completely new possibilities of optimizing your product and processes.

Improved corrosion protection was verified in several tests over various periods of time. The excellent material properties will lead to higher profitably in your products.

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With its forward-looking technological developments, voestalpine is setting new standards in the automotive industry.

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Looking for the lightweight automotive design of tomorrow?

The automotive industry is undergoing unprecedented change. Technological developments are progressing at an enormous pace. The demands on efficiency and safety are enormous and are being completely redefined in ever shorter periods of time. In this highly innovative environment, anyone who believes that today's solutions must be valid tomorrow will be proven wrong by the competition. voestalpine is working now on the solutions of tomorrow. Whether for crash components, exposed panels that meet the highest surface requirements or body-in-white components, voestalpine provides the best solution for every demand of the automotive and automotive supplier industries. That is why leading OEMs and automotive component suppliers place their trust in voestalpine.

Let your ideas fly! That's ultralights

Transforming ideas into lighter, stronger and more corrosion-resistant components. That is the credo of ultralights made by voestalpine. The ultralights made by voestalpine offer a comprehensive range of steels for lightweight automotive design, from advanced high-strength steels (ahss) for cold forming to innovative solutions for the hot forming of galvanized press-hardening steels (phs). That is how voestalpine pushes the limits of what is efficiently feasible in the automotive industry.

Lightweight AND crash-safe!

Weight reduction is a central objective in the automotive industry. Less weight results in advantages in performance and efficiency. But does reduced weight also mean less stability? Results from the voestalpine crash simulator prove otherwise. This is where the high-strength and innovative car body steels of voestalpine are tested to the limit so they can be used in demanding applications, even in the most extreme cases. The results speak for themselves. The progressive buckling behavior and energy absorption values are excellent in spite of the light weight of the material.

Who's Stella?

Stella Sustainable is a testimonial to the sustainable future of the automotive industry. Holistic corporate social responsibility (CSR) is of particular importance to voestalpine. There are many other issues in addition to climate protection, future steel production, ecological logistics and transparent supply chains. Because we care. Stella stands for a vision of the future in which mobility and the environment do not contradict each other.

Ready for a new Xperience?

The ahss high-ductility, complex-phase steel CP1400HD made by voestalpine redefines the limits of what is feasible in lightweight automotive design. Impressive formability and light weight in a strength class of 1400 MPa. The next level of cold forming.

Electrical steel for the drive

In addition to lightweight design and safety, the need for highly efficient electrical steel for rotors and stators in the drive train is becoming increasingly important in electromobility. There are already more than 100 electric motors installed in conventional cars. New drive motors present the industry with completely new challenges. isovac® is the electrical steel made by voestalpine and meets the challenges of highest energy efficiency.

corrender is convincing throughout the entire car body, even in exposed panels.

The performance of corrender can be applied throughout the entire car body. corrender optimizes every structural or internal component, including those that are forming-critical or highly corrosive. The potential savings in the corrender metallic surface coating offers greater corrosion protection when compared with classic galvanized steel strip.

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House industry
House industry

House industry

Increasingly qualitative and efficient solutions from voestalpine will be the household appliance industry standard of tomorrow.

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House industry

The ideal supplier to household appliance manufacturers

The household-appliance industry has always been a market segment of strategic relevance to voestalpine. For more than 60 years, we have been developing the unique expertise incorporated into our end products, our manufacturing technologies and the industry. This has made it possible for voestalpine, as one of the most innovative and research-intensive companies in the steel industry, to set new industry standards in collaboration with our customers.

Why customers rely on voestalpine

Many renowned manufacturers have enjoyed much more than a sixty-year partnership with voestalpine. Highly skilled technical and market experts continue to work very closely with customers on high-quality and efficient solutions that set the market standards of tomorrow. Sophisticated service and logistics solutions are combined with a highly professional overall package that has proven to be effective for many manufacturers. Convince yourself!

Specialized research and development

voestalpine focuses more on solutions than on standard products. Emphasis is placed on an understanding of customer requirements and the development of individualized solutions. In its daily work, voestalpine banks on innovation and defines the standards of tomorrow.

  • Joint product development in collaboration with customers in the industry
  • Synergies with other highly innovative industries
  • More than 700 researchers, a close network with research institutions and consistent focus on innovation

Reliability AT the right time and place 

With years of experience delivering products to every part of the world, voestalpine implements all procedures necessary in international logistics to ensure the highest level of reliability. The highest degree of reliability is also taken for granted when it comes to global deliveries. A global network of sales offices, selected partners and steel service centers make it possible for voestalpine to be highly flexible with regard to customer requirements and to customize supplies and solutions for customers in the household appliance industry.

Is powder coating still your thing? Follow along and reduce your costs.

A large number of possible designs, maximum functionality, flexible support for your production lines in accordance with environmental regulations, cost savings, simplified logistics and just the right benefits clearly make colofer® the winner when answering the question of whether to use colofer® or a powder coating.

Impressive special colors in small lots is possible thanks to colofer® coil splitting.

colofer® home, the organic-coated steel strip for the household-appliance industry, has already become an important name as a high-quality and high-performance product. But did you know that the colofer® color service can produce most any color, and the product can be supplied in small lots thanks to colofer® coil splitting? This makes colofer® home an ideal choice when it comes to design and flexibility.

voestalpine supplies solutions to the following areas in the household-appliance industry:

  • Dishwashing
  • Laundry
  • Cooling
  • Drying
  • Cooking
  • Read more

multiface® is the superlative among additional surface treatments.

multiface® is the No. 1 in surface treatments: a multifunctional, nearly invisible protective coating with excellent anti-fingerprint properties. The coating provides excellent corrosion protection during transport and storage and very good forming properties without having to employ any additional lubricants. Components coated with multiface® can be painted or adhesive-bonded without any additional conditioning and can be processed immediately. The surface features very good adhesive properties.

corrender for increased efficiency through high-performance corrosion protection

A powerful protective layer with numerous advantages is created through alloying small amounts of magnesium and aluminum in the zinc bath. Highly reduced formation of white and red rust and excellent product processability make corrender ideal for any application in the household appliance industry.

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