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Putting corrender to the hardness testYour advantage with hot-dip galvanized steel strip with zinc-magnesium-aluminium coating
voestalpine Steel Division
www.voestalpine.com/steel
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Hot-dip galvanized steel strip: A new perspective
Do you currently use classical galvanized steel strip? We invite you to go a step further with us. When you use corrender, the hot-dip galvanized steel strip with zinc-magnesium-aluminum coating, you open a new range of completely new possibilities to optimize your products and processes.
Competitive advantage: Corrosion protection of tomorrow
Increasing competition and cost pressures make it necessary for companies to find cutting-edge solutions. Without innovation, companies run the danger of losing touch. With corrender, your company will have the competitive advantage and will act sustainably.
Special features: Why corrender provides protection
When small amounts of magnesium and aluminum alloys are added to the zinc bath, a significantly higher level of protection is achieved when compared to conventional zinc. The special alloy composition leads to remarkable advantages in corrosion protection and processing.
Please find more information atwww.voestalpine.com/corrender
Outdoor testExcellent performance
in worldwide aging tests
Laboratory testSuperior corrosion
protection in accelerated tests
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Increased efficiency: Optimization
potential in the production process
New opportunities: Development of new markets and fields
of application
corrender layer structure
ZM coatings
from 90 to 275 g/m2
Steel strips
from 0.45 to 2.00 mm
corrender in the laboratory: Superior corrosion protection
Classical galvanized steel strip
corrender
Salt spray test (white rust)
Salt spray test (red rust)
The performance of corrender in classical salt spray tests proves significantly higher corrosion protec-tion than conventionally galvanized steel strip, even in formed condition.
corrender also provides a substantially higher level of protection in heavily acidic and basic environments.
after 24 h after 48 h after 1 h after 500 h after 500 h 10% deformation
after 500 h 15% deformation
Classical galvanized steel strip
corrender
Salt spray test (acidic)
after 100 h after 500 h after 24 h after 100 h
Classical galvanized steel strip
corrender
Stopped after 100
cycles
Constant climate test Constant-humidity environmental test
after 100 d after 400 d after 100 cycles after 400 cycles
Salt spray test (basic)
Salt spray test (red rust in formed condition)
The significantly higher level of corrosion protection of corrender as compared to conventionally galvanized steel strip is demon- strated in the constant climate and constant humidity tests.
Stopped after 400
cycles
Increased protection of cut edges
Because of its alloy composition, corrender demonstrates substantially higher remote protection than conventionally galvanized steel strip. This allows higher protection at the cut edge, even when the layer thickness is reduced from Z 275 g/m2 to ZM 120 g/m2!
Z 275 g/m2
Steel strip
ZM 120 g/m2
Steel strip
corrender in the laboratory: Superior corrosion protection
Daytona Beach
Bohus-Malmön KvarnvikBohus-Malmön Kattesand
IjmuidenOstrava
Brest
Cadiz
DubaiJiangjin
WanningBangkok
Sattahip
Qingdao
Singapore
In order to demonstrate the capacity of corrender under natural conditions, samples of corrender and conventionally galvanized steel strip were exposed in the field at a total of 14 different locations. Field testing conducted in collaboration with the French Corrosion Institute is intended to ensure that varying temperatures, precipitation volumes, humidity levels, pollution loads (SO
2 and NO2) and distances to the sea are taken into account.
65% higher degree of protection
After one year, corrender demonstrated significantly lower loss in mass and thus higher levels of corrosion protection at each of the locations than conventionally galvanized steel strip. The total average improvement across all locations was higher than 65%. Some locations even noted an increase in corrosion protection of more than 80%. The increase in protective effect was no lower than 40% at any of the locations.
corrender Outdoor: Outstanding test results
mass loss
zinc layer on conventionally
galvanized steel strip
Average improvement across all worldwide locations
mass loss
ZM layer on corrender,
improvement:
+65%
mass loss
zinc layer on conventionally
galvanized steel strip
AbtragZM layer on corrender,
improvement:
+80%
Best values (at two locations)
mass loss
zinc layer on conventionally
galvanized steel strip
mass loss
ZM layer on corrender,
improvement:
+40%
Least improvement
Qingdao
n Significant reduction of resource consumption with unchanged product performance
Competitive advantage Lower production costs,
improved competitive position resulting
from lower resource consumption
n Areas of application not possible with conventionally galvanized steel strip because of corrosion stress
n Substitute for products not replaceable by conventionally galvanized steel strip (such as Galfan)
n Replacement of piece-galvanized products
n Prolonged service life of existing products
Competitive advantage Increased capacity
and broadened field of application, prolonged service life of existing products
The outstanding corrosion protection of corrender enhances the possible range of application. Offering even better protection while maintaining the same layer-thickness, corrender opens up new markets to you. Or profit from corrender’s significant savings potential while retaining the same protective effects.
Zinc-magnesium coatings
Steel strip
Zinc-magnesium
Steel strip
Zinc
Steel strip
Same coating layer thickness = enhanced protection
Reduced coating thickness = same level of protection
Classical galvanized steel strip
Development of new markets and fields of application
„When we used con-ventionally galvanized steel strip, it was ne-cessary to clean the line every four to five days. Now that we use corrender, our production line runs without interruption for 14 days.“ Customer feedback, February 2014
The information and product properties contained in this printed material are non-binding and serve the exclusive purpose of technical orientation. They do not replace individual consultation provided by our sales and customer service teams. The information and product properties contained in this brochure are guaranteed only when specifically and contractually stipulated. All rights reserved. Not responsible for printing errors or technical changes. Duplication in part or in whole is subject to explicit written permission by voestalpine Stahl GmbH.
Numerous cross-sector series of experiments and our customers‘ experience show that corrender leads to significantly improved efficiency in the production process.
■ Elimination of forming aids The excellent forming properties allow simple forming procedures (i.e. roll-forming) without
the use of any forming aids.
■ Energy conservation and low noise levels Low roll resistance reduces energy input and noise levels during the roll-forming process
■ Reduced abrasion in component manufacturing Low adhesive tool wear (galling) reduces the time required for tool cleaning. Up to 80 percent
of the cleaning downtimes can be avoided, depending on the specific application.
■ No change to the production processes corrender can be processed in the same way as conventionally galvanized steel strip.
Comprehensive consulting services during conversion
Corrosion is a complex phenomenon that is influenced by numerous factors We focus on extensive consultation in order to maximize the benefits for customers who use corrender.
Together with us, you are one step ahead.
voestalpine has serially produced corrender since 2007 and, like no other European producer, has years of experience in the application of ZM alloys. Reap the benefits today and convert to corrender made by voestalpine.
Increased efficiency in the production process
Recommendation of required zinc- magnesium-aluminum coating layer to account for predominant conditions
+
Consultation on potential savings
by reducing metallic coating layer+
Consultation on Galfan (ZA) and
Gavalume (AZ) conversions+
Consultation on piece-galvanized-product
conversion+
Helpful information on storage, processing
and combining with other materials+
Guarantee model for selected areas of
application+
08
/201
4
voestalpine Steel Divisionvoestalpine-Straße 34020 Linz, AustriaT. +43/50304/[email protected]/steel
Together with us, you are always one step ahead because we offer more than optimized products made of high-quality material.
■ If you are looking for customized solutions, we will be pleased to work with you on the creation of new products and services.
■ If you are looking for new ideas on materials, technologies and services, we want to help you find them.
■ If you are looking for a fair and reliable partner, you are at the right place. We know that we can only be successful together with our custo-mers when they benefit as much as we do from our partnership.
■ Our customers take advantage of the most widely used technology: Two thirds of the steel produced worldwide is made using the LD process, and we‘re rather proud of that.
If you‘re reading this, your successful future has already begun.
