Steel Division

Stahlbau

Customer-oriented partnerships and tailored solutions in the steel construction industry

Our thermomechanically rolled steel grades and weather-resistant structural steels set benchmarks with respect to their best processing properties and consistently high quality. They are the key to efficient steel structures and provide potentially high savings in welding and maintenance. Industryspecific material and manufacturing expertise, comprehensive preprocessing possibilities, reliability and relationships based on trust make us a trusted partner to the European steel construction industry.

We supply higher strength & lighter weight

alform® heavy plates find their applications wherever high workability and weldability coupled with high strength and weight savings are in demand. Utilization of the higher yield strength of high-strength fine-grained steels as opposed to conventional structural steels results in lower cross-sections. This leads on the one hand to cost savings in lower component weights as well as reduced expenditures for transports, assembly, foundations, component manufacturing, especially in welding as a result of minimized seam cross-sections.

Elimination of paint coating and maintenance

The alloying of small amounts of phosphorus, copper, nickel, chromium or molybdenum leads to the formation of a protective layer on weather-resistant steel outdoors. This layer protects the steel from further corrosion. Weather-resistant structural steels thus provide cost advantages as no anti-corrosion coating or maintenance required of the protective coating is required.

voestalpine Vermeidung von Korrosionsschutzanstrich und Wartung

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Heavy plates

Stahlbrücke Tulln

Heavy plates made of general structural steels

General structural steels made by voestalpine are used in a wide variety of applications in steel structures, bridges, buildings, vehicles and wind towers. Weather-resistant structural steels are often used in bridges.

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Heavy plates made of general structural steels

Our general structural steels are used in a wide variety of applications in steel structures, bridges, buildings, vehicles and wind towers.

Our weather-resistant structural steels are often used in bridges and provide advantages in maintenance costs.

What we offer

  • Special plate dimensions: Thickness of up to 300 mm and widths of up to 3950 mm
  • High steel quality: narrow analysis limits, low scatter in mechanical parameters, Z tests, all classes of ultrasound testing
  • Steels with best processing properties for welding, edging and cutting

Steel grades:

Steel group

 Steel grade standard

Steel grades

Unalloyed structural steels

EN 10025-2

S235 JR+AR, JR+N, J0+AR, J0+N, J2+AR, J2+N;

S275 JR+AR, JR+N, J0+AR, J0+N, J2+AR, J2+N;

S355 JR+AR, JR+N, J0+AR, J0+N, J2+AR, J2+N, K2+AR, K2+N;

Fine-grain structural steels normalized-rolled or normalized-annealed

EN 10025-3

S275N, NL;

S355N, NL;

S420N, NL;

S460N, NL;

Fine-grain structural steels, thermomechanically rolled

EN 10025-4

S275M, ML;

S355M, ML;

S420M, ML;

S460M, ML;

Weather-resistant structural steels thermomechanically rolled
EN 10025-5

S355 J2W+M,

S420 J2W+M; 

S460 J2W+M;

Weather-resistant structural steels

EN 10025-5

S355 J2W+AR,

S355 J2W+N; 

S355 K2W+AR,

S355 K2W+N;

Structural steels

ASTM/ASME

(S)A 36

(S)A 283 Grade C

(S)A 572 Grade 50 Type 1

Weather-resistant structural steels

ASTM/ASME

(S)A 588 Grade A

 

Waiting has an end!

We are not talking about autumn or the rain, but we are thinking about our weather-resistant TM steel grades.

Weather-resistant structural steels acc. to EN 10025-5

The new edition of EN 10025-5 in 2019 finally included thermomechanically-rolled (TMCP) weathering steels in the European standard.

The TMCP steel grades S355J2W+M, S420J2W+M and S460J2W+M stand out due to their low carbon content and significantly higher toughness, even at low temperatures. This guarantees best workability and weldability.

To highlight the advantages of our weather-resistant TM steel grades please find below a comparison of normative requirements and typical voestalpine values of CEV:

S355J2W / S420J2W / S460J2Wmax. CEV acc. Norm EN 10025-50,52%
S355J2W+M / S420J2W+M / S460J2W+Mtypical voestalpine values at wt=50mm 0,41%

 

  • Cost saving when corrosion coating not applied
  • No maintenance required (re-application of corrosion coating)
  • Weatherproof steel achieved by addition of phosphorus, copper, nickel, chromium or molybdenum
  • Alloys form a dense oxide layer that retards corrosion
  • Applications in steel structures, bridges and vehicles

Dimensions for heavy plates made of general structural steels:

Plate thickness:

8–200 mm (dependent on steel grade, up to 300 mm upon request)

Plate width

3,950 mm max. (dependent on thickness and steel grade)

Plate length

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

Ordered weight

At least 2 tons per line item

Unit weight

Single plates 20.5 tons max. (dependent on steel grade)

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Formenbau

Heavy plates made of case-hardening and heat-treatable steels

Case-hardening and heat-treatable steels are usually heat-treated following final processing in order to unfold their final properties. Typically used in tool and mold making.

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Heavy plates made of case-hardening and heat-treatable steels

Case-hardening and heat-treatable steels are usually heat-treated following final processing at the customer in order to unfold their final properties. Typical areas of application are in making tools and molds (e.g. for concrete blocks).

Steel grades

Heat-treatable steels

pursuant to EN 10083:

C45, C45+N, C45E, C45E+N, C45E, 42CrMo4

Case-hardening steels

pursuant to EN 10084:

16MnCr5, 20MnCr5

 

Dimensions:

Plate thickness:

10-160 mm (dependent on steel grade)

Plate width

3,950 mm max. (dependent on thickness and steel grade;

widths up to 3800 mm)

Plate length

18,700 mm max. (dependent on thickness and steel grade;

lengths up to 13,200 mm)

Ordered weight

At least 2 tons per line item

Unit weight

15 tons max. per single sheet

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Heavy plates made of shipbuilding steels

Heavy plates made of shipbuilding steels

voestalpine shipbuilding steels in normal and high-strength design are used for offshore applications, deck superstructures on platforms and in special ships in the oil and gas industry.

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Heavy plates made of shipbuilding steels

Areas of application

The primary application is already in the name of shipbuilding steel: These steel grades are used for cabin structures on cruise ships. Particularly thin plates are used in large widths for such applications. These sheets exhibit best processing properties such as flatness and weldability. High-strength, thermomechanically rolled ship plates, on the other hand, are used in the offshore sector. They are used for deck superstructures on platforms or for special ships in the oil and gas industry.

Reliability and quality

We guarantee the highest safety and quality standards. We meet all the requirements of renowned classification societies:

  • DNV-GL
  • Registro Italiano Navale (RINA)
  • Bureau Veritas (BV)
  • Lloyd's Register of Shipping (LR)
  • American Bureau of Shipping (ABS)
  • Russian Maritime Register of Shipping (RMRS)

Steel grades

A, B, D, E

AH 32 TM, A 32 TM, DH 32 TM, D 32 TM, EH 32 TM, E 32 TM

AH 36 TM, A 36 TM, DH 36 TM, D 36 TM, EH 36 TM, E 36 TM, FH 36 TM, F 36 TM

 

Dimensions

Plate thickness:

5-140 mm (dependent on thickness and steel grade)

Plate width

3,950 mm max. (dependent on thickness and steel grade)

Plate length

18,700 mm max. (dependent on thickness and steel grade)

Ordered weight

At least 2 tons per line item

Unit weight

19.5 tons max. per single plate

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Stahlbrücke

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

alform® steels are thermomechanically rolled fine-grained structural steels with excellent weldability, toughness and cold-forming behavior, which makes them extremely versatile.

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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

Dimensions:

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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Mobilkran

High-strength plates

High-strength heavy plates made by voestalpine of fine-grained steels can have a minimum yield strength of up to 700 MPa. The special ultra-high-strength grades achieve a yield strength of up to 1100 MPa.

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High-strength plates

Higher stress

Machines and buildings are becoming bigger and bigger. When the size of a component is doubled in length, width and height, the weight increases by a factor of 8, while the load-bearing cross-sectional surface area only increases by a factor of 4. This increases the stress, or the weight in relation to the cross-sectional surface area, by a factor of two. High-strength steels can absorb these higher stresses, even when the component weight is reduced.

Concrete advantages

The lower weight of high-strength and ultra-high-strength heavy plates saves costs: Input material quantities, transport costs, assembly and foundation costs are reduced substantially. Costs are also saved during further processing. Thanks to favorable weldability, work can be completed more quickly and efficiently. Significantly reduced quantities of welding consumables are required, and weld seam testing is made easier.

Our program

High-strength heavy plates are available as fine-grained steels with a minimum yield strength of 620 and 700 MPa. Ultra-high-strength heavy plates are available as voestalpine special grades at 900, 960 and 1100 MPa.

  • alform plate 620 M, thermomechanically rolled, high-strength fine-grained steels
  • alform plate 700 M, thermomechanically rolled, high-strength fine-grained steels
  • aldur 700, 900 and 960 Q, quenched and tempered, high-strength fine-grained steels
  • alform plate 900 M x-treme, thermomechanically rolled, ultra-high-strength fine-grained steels
  • alform plate 960 M x-treme, thermomechanically rolled, ultra-high-strength fine-grained steels
  • alform plate 1100 M x-treme, thermomechanically rolled, ultra-high-strength fine-grained steels
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toughcore®

toughcore®

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

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aldur®

aldur®

aldur® made by voestalpine is a high-strength, water-quenched fine-grained structural steel with high toughness at low temperatures.

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alform®

alform®

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

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