Steel Division

Offshore

Heavy plates

Jack-up-Rig

Chords

High-strength plates made by voestalpine are used in offshore platforms. They are formed using special tools into hot-formed components in the manufacturing of heads.

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Chords

Supports and anchors

Offshore platforms stand on adjustable supports. During transport, the supports are retracted and protrude upwards. At the offshore site, they support the platform and anchor it to the seabed. Chords made by voestalpine Grobblech strengthen the gear racks of these supports and thus enable safe operation in adverse environments.

Complex manufacturing process

We developed our manufacturing technology for chords as hot-formed components in our in-house press shop. The pre-material is heavy plate made of high-strength and fine-grained structural steel produced in our own rolling mill. Strips are cut from this plate and formed into chords with a special tool on a hydraulic press with a maximum pressing force of up to 3500 tons. The tool function is based on finite element calculations and guarantees a high level of shape accuracy. After being hot-formed, the chords are water-tempered and straightened. Torch-cut or milled edging on the long and short sides is the final step in the production process.

Steel grade: aldur 700 QL1, S690 QL1, AB EQ/FQ70, VL E/F690

Dimensions: Lengths up to 4200 mm, wall thickness of 120 mm, diameter of 670 mm

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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

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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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Förderplattform

Offshore plates

Whether in the Gulf of Mexico, the North Sea or the Arctic, thermomechanically rolled structural steels made by voestalpine are in worldwide use in the offshore industry.

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Offshore plates

Applications under the harshest conditions

We deliver high-quality offshore structural steels and thermomechanically rolled shipbuilding plates for drilling platforms, oil platforms and jack-up rigs. These steels are also used in foundations for offshore wind parks and floating production storage and offloading vessels (FPSOs). In addition, we are in a position to produce chords for the feet of jack-up rigs. We supply pre-qualified materials with plate thicknesses of up to 80 mm and CTOD values down to -40 °C for applications in arctic regions (arctic steel). Our thermomechanically rolled offshore plates 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 make it possible for us to guarantee the highest safety standards in welded structures.

Steel grades

pursuant to EN 10225:

S355G5+M, S355G6+M, S355G7+M, S355G8+M, S355G9+M, S355G10+M

S355G2+N, S355G3+N, S355G7+N, S355G8+N

S420G1+M, S420G2+M

S460G1, S420, S460G2+

All TM grades available up to 101.6 mm, available pre-qualified according to Annex E

Compliant with API 2H:

API 2H-50N (normalized up to 100 mm)

Compliant with API 2W:

API 2W-50, API 2W-50T, API 2W-60 (available 101.6 mm pre-qualified according to API RP2Z)

Compliant with API 2 MT1:

API 2 MT1

Dimensions

Plate thickness:

6-130 mm (dependent on steel grade)

Plate width

3,850 mm max. (dependent on thickness and steel grade)

Plate length

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

Unit weight

max. 28,0 t je Einzeltafel

 Prequalified 

We supply offshore plates pre-qualified pursuant to EN10225 in steel grades up to S460G2+M and in plate thicknesses up to 101.6 mm as well as pre-qualified pursuant to API RP2Z in steel grades up to API 2W-60 and in plate thicknesses up to 101.6 mm. For arctic applications, we supply offshore plates in steel grades up to API 2W-60 with guaranteed CTOD values down to -40°C, pre-qualified pursuant to API RP2Z.

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Foundry products

Peltonräder

Castings for the energy sector (< 10 t)

We are a renowned supplier to the energy sector and comply with applicable international norms. The used materials are creep-resistant and cryogenic special steels with special properties. Castings in nickel-based alloys complete the portfolio. Finish-machined parts and component manufacturing allow supply of ready-to-install castings.

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Castings for the energy sector (< 10 t)

The maximum weight of castings for the energy industry is roughly 10 tons. Because the parts find their applications worldwide, they are manufactured and certified in compliance with both EN and ASTM norms and standards.

Steam turbines

Our components for steam turbines have been certified by all renowned steam turbine manufacturers. Some examples of these innovative products are as follows: valves, interior housings, admission ports, seal housings, elbows, covers, vane supports.

Gas-driven turbines

Our ready-to-install special parts for gas-driven turbines with customer-determined specifications are in high demand. Examples of special parts: vane supports, diffusors, bearing and exterior housings, seal rings.

Water turbines

Based on our many years of experience and our high-quality metallurgical equipment, we are a reliable partner for all renowned turbine manufacturers. We manufacture castings for Francis, Kaplan and Pelton water turbines, including hubs, collars, Pelton wheel buckets, guide blades and adjusting cranks

Oil and gas

voestalpine Giesserei Traisen GmbH is specialized in the application of cryogenic materials. We have been supplying the international oil-field equipment industry for decades with ready-to-install and pre-assembled components. Examples of this are as follows: compressor housings, compressors, blowout preventers, valves, bearing housings, expander housings.

Nickel-based materials

voestalpine Giesserei Traisen GmbH was heavily involved in the development of this product group for foundries. Nickel-based materials are characterized by high load-carrying capacity at high temperatures and pressures. Areas of application include, for example, steam-driven power plants that operate at 700 °C. Valves and admission ports are examples of successful nickel-based products.

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Castings for the machinery industry (< 10 t)

Castings for the machinery industry (< 10 t)

Steel castings and nodular castings for mechanical engineering are delivered ready for installation in many strengths and levels of toughness. Special steel grades are available for special applications.

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Castings for the machinery industry (< 10 t)

Steel and nodular iron castings

In our molding line we can economically produce series with unit weights of 50 to 400 kg. Larger and heavier components are produced manually for the machinery industry. The maximum unit weight is 10 tons for steel castings and 12 tons for nodular iron castings. Ductile cast iron is supplied in standard grade EN-GJS 400 15.

Machinery industry

We use a variety of different materials in our steel castings, including standard unalloyed grades, heat-treatable and fine-grained steels as well as high-alloy and high-strength special steels with special properties. Our castings are used in special transport systems, excavation equipment, mining and other specialized machinery.

Railway switch construction

Customers throughout the world are supplied by voestalpine Giesserei Traisen GmbH with switch frogs made of manganese steel for high-speed railway systems. We are in high demand as a business partner in the development of prototypes.

Stainless and acid-resistant materials

Our metallurgical equipment enables us to produce a wide range of materials. Final machined components made from standard to Ni-base alloys can be produced for the food, paper and chemical industries.

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Schmiedekasten, 110 to/Stk.

Castings for for the machinery industry (> 10 t)

The castings can also be purchased ready for installation: We offer mechanical processing and plating.

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Castings for for the machinery industry (> 10 t)

Facility equipment and expertise

At our Linz site, we have the casting equipment, heat treatment facilities and the required expertise to produce heavy steel castings up to 200 tons/unit. We offer ready-to-install machined components, including components with hard-face welding and cladding.

Our portfolio

  • Hammer rams for counterblow hammers
  • Mill housings and other castings for rolling mills
  • Stand for forging machines
  • Anvils
  • Hammer frames
  • End walls for cement mills
  • Slag pots
  • Steel castings for general machinery applications
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Verdichtergehäuse

Steel castings for the energy sector (> 10 t)

We take the performance of our customers to new heights in the energy industry. Complex designs, high-alloy castings with weights of up to 200 tons and the development of new materials are just a few examples.

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Steel castings for the energy sector (> 10 t)

Fields of application

We deliver our steel castings worldwide to renowned plant manufacturers in the energy industry. The most important areas of application are as follows:

  • Power generation: Gas, steam and industrial turbines
  • Oil and gas industry: Compressors, valves etc.
  • Offshore industry: FPSOs, oil platforms etc.

Broad range of products and services

Our product range includes each material that is customary in the industry. In addition, we develop innovative and complex alloys to meet special customer requirements and extreme applications, for example nickel-based alloys to achieve higher efficiency. All castings are available in pre-roughened form or finished form as required. Ready-to-install products save our customers time and money. Surface-layer welding and pressure testing round off our portfolio.

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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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