High-strength and ultra-high-strength alform® steels: the new lightness of steel 2 minutes spent reading
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High-strength and ultra-high-strength alform® steels: the new lightness of steel

Viktoria Steininger
Redaktionell verantwortlich für die Themen am Blog, recherchiert und schreibt Viktoria Steininger auch selbst und gibt mit Geschichten Einblicke in den voestalpine-Konzern.

alform® steels from voestalpine are high-strength and ultra-high-strength steels with excellent cold forming properties, superior toughness, very good weldability and offering extreme weight savings.

What are alform® steels?

alformalform® steels from voestalpine are hot-rolled, high-strength and ultra-high-strength TM steels with excellent welding properties and offering the highest levels of component reliability. The thermomechanical rolling process (TM rolling) results in a very tough fine-grained microstructure which simultaneously offers good strength and cold forming properties. Compared to commercial standard QT (quenched and tempered steel), TM rolled steels have significantly lower carbon content and a lower risk of cold cracking during welding.

 

What are the advantages of alform®?

alform-mobilkran-liebherr-ehingen

Mobile cran

Light-weight construction is becoming increasingly important in the mechanical engineering industry. Steels are needed which enable both lower material thicknesses and optimal processability. These demands are met by high-strength and ultra-high-strength alform® steels. These steels enable a reduction in material thickness and thus weight of up to 70 percent.

 

An overview of the key advantages:

  • Cost reduction: costs can be significantly lowered by reductions in the quantities of steel and filler materials.
  • Ideal for welding: thanks to its fine-grained microstructure (lower carbon content) the risk of cold cracking during welding is significantly reduced.
  • Excellent cold forming properties: decisively improved forming behavior with more than twice the minimum yield strength compared to traditional construction steels.
  • Excellent cutability: the low material thickness enables faster cutting rates. And due to minimal internal stresses, distortions during cutting are largely avoided.
  • Perfect surface: thinner and more homogenous scale layer (oxide layer) compared to QT plates. This forms a “natural protective layer” against corrosion.
  • Excellent toughness: the thermomechanical rolling combined with accelerated cooling results in a fine-grained microstructure and very good toughness.

 

What are alform® steels used for?

alform® steel is used where maximum strength is required:

  • Mobile cranes
  • Truck cranes
  • Concrete pumps
  • Utility vehicles
  • Railcars
  • Containers
  • Agricultural and forestry machinery
  • Offshore platforms
  • Pressure pipelines
  • etc.

 

In what form is it available?

High-strength and ultra-high-strength alform® steels are available as hot-rolled steel strip, cut shapes from hot-rolled steel strip and as heavy plate.

 

More information about alform®:

alform® website: http://www.voestalpine.com/alform

Product brochure: High-strength and ultra-high-strength TM steels

Viktoria Steininger