Steel Division

Heavy plates made of thermomechanically rolled fine-grained structural steel.

We supply standard and high-strength, thermomechanically rolled, fine-grained steels of the highest quality with minimum yield strengths ranging from 355 355 MPa to 700 MPa.

As a special grade of voestalpine steel, alform® is primarily used in applications such as steel structures, bridges, pressure pipes, vehicles and cranes.

Our thermomechanically rolled fine-grained steels are characterized by a high degree of toughness and excellent weldability. The low degree of cold cracking and high degree of toughness in the welding seam result in the highest safety standards in welded structures.

Utilization of the higher yield strength of high-strength fine-grained steels (alform plate 420 M, 460M, 500 M and 550 M) as opposed to conventional structural steels results in lower cross-sections. This leads to cost savings in lower component weights and reduced expenditures for transports, assembly and foundations as well as savings in component manufacturing, especially during welding.

Steel grades:

Special voestalpine grade

alform plate 355 M

alform plate 420 M

alform plate 460 M

alform plate 500 M

alform plate 550 M

Thermomechanically rolled fine-grained structural steel

rolled in accordance with EN 10025-4

S355M, ML

S420M, ML

S460M, ML


Plate thickness:

8-100 mm for special voestalpine grade alform plate 355 M, alform plate 420 M and alform plate 460 M

8-80 mm for special voestalpine grade alform plate 500 M

8-50 mm for special voestalpine grade alform plate 550 M

8-100 mm for S355, S420, S460 M, ML

Plate width

3,800 mm max. (dependent on thickness and steel grade)

Plate length

18,700 mm max. (dependent on thickness and steel grade; 24,000 mm available upon request)

Ordered weight

At least 20.0 tons per line item

Unit weight

20.0 tons max. per single plate

Advantages of alform®
  • Fine-grained, homogeneous microstructure with high strength and excellent toughness
  • Best weldability based on low C equivalent
  • Excellent edging: smallest edging radii and resistance to cracking during edging
  • Best surface resulting from a uniform and thin secondary scale layer

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Heavy plates with a fine microstructure to the very core, created for extremely high toughness and the most adverse environments.

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alform® is a hot-rolled fine-grained steel with excellent cold-forming properties and excellent weldability.

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