Steel Division


Strong combination

altrix® multi-layer plates are composite materials and are manufactured as two- or three-layer plates by means of a roll-clad method developed in-house. The base material guarantees high toughness and good weldability. The cladding material offers a high degree of hardness and wear resistance in hardened condition.

Areas of application

Typical applications of altrix® multi-layer plates include dredging pipes, plow moldboards, mill housing wear plates, mold manufacturing, paddles in log washers, chutes, slides and transfer components in the sand, gravel and cement-making industries and cladding in rock crushers.


The standard base material of altrix® multi-layer plates is S235 in accordance with EN 10025-2. The cladding material is 2842 (altrix 90). A hardness value of up to 66 HRC is achievable in hardened condition. altrix® plates are delivered in as-rolled condition.


  • Plate thickness: 7–80 mm 
  • Plate width: 3.800 mm max.
  • Plate length: 12.000 mm max.
  • Ordered weight: At least 10 tons per line item
  • Unit weight: 6.3 tons max. per single plate
In consideration of the favoured wear resistance and resistance to fracture the correct layer thicknesses shall be selected. A layer thickness ratio of 50 % to 50 % is typical between the cladding and base material for two layers and 33-34-33 % (hard-tough-hard) for three-layer plates.

Advantages of altrix® 

  • Longer service life due to high degree of hardness 
  • High resistance to fracture in the compound blank 
  • Smooth surface, good yielding behavior and minimal caking 
  • Best welding properties in delivered condition and in hardened condition 
  • Simple fastening possibilities
Hot-rolled steel strip

Hot-rolled steel strip

Precisely tailored to customer requirements, our portfolio ranges from highly formable mild steels to ultra high-strength steels for harshest applications.


To meet every customer requirement, we supply hot-rolled steel strip in widths up to 1,750 mm and thicknesses up to 20 mm. Our products are available pickled or unpickled, as slit or wide strip in coils, and even as slit steel strip or cut shapes. These high-quality products are manufactured to tightest tolerances. Hot-rolled steels made by voestalpine are supplied in a wide range of grades and qualities. A variety of alloys and rolling programs provide our customers with just the right steel for their specific applications.

Steel grades

  • Mild steels
  • Structural steels
  • Micro-alloyed steels
  • Case-hardening and heat-treatable steels
  • Martensitic steels
  • Multi-phase steels
  • Dual-phase steels
  • Ferritic-bainitic steels
  • Pole and rim steels
  • Enameling steels
  • Steels for gas cylinders
  • Weather-resistant structural steels
  • Wear-resistant steels
  • High-strength and ultra high-strength steels
Hot-rolled steel strip 
voestalpine stands for partnership and highest quality:
  • Development of special customer grades to meet specific requirements
  • Highly consistent mechanical and chemical properties
  • Tightest tolerances guaranteed 
  • Consistently high product quality thanks to precise rolling process with perfectly coordinated temperature and forming processes
  • Material and processing expertise from a single source


Heads and cones

We are the only provider worldwide of shell plates, heads and cones from a single source in carbon steel and as clad products.

Successful throughout the world

Our dished heads are found in applications such as heat exchangers, separators, columns, compressors, storage containers and tank cars. Our customers are found in the petrochemistry, oil and gas, paper and pulp, energy and railcar manufacturing industries. We are the world's only single-source supplier to deliver shell plates, heads and cones made of carbon steel in clad design.

Our materials

We use structural steels, fine-grained structural steels and pressure-vessel steels for carbon-steel heads and pressed parts.

We manufacture clad heads and pressed parts from all conventional carbon steels. We supply stainless and heat-resistant steel grades and non-ferrous metals and alloys as cladding materials for optimum corrosion resistance.

Headmolds and dimensions

We manufacture custom-made heads as a single part or welded from multiple parts. Multi-part cones are available in head gauges of up to 160 mm and diameters of up to 10,000 mm.




Dished and flanged

Single-part heads


3,400 mm max.

3,400 mm max.



160 mm max.

65 mm max.





3,400–3,700 mm

3,400–6,500 mm



160 mm max.

65 mm max.

Multi-part heads

and cones


10,000 mm max.



160 mm max.


Clad heads

and cones


10,000 mm max.



120 mm max.

Please find more detailed information on materials, head shapes and dimensions in the downloadable product information folder.


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.

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

according to EN 10083:

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

Case-hardening steels

according to EN 10084:

16MnCr5, 20MnCr5



Plate thickness:  

10–150 mm (dependent on steel grade)

Plate width:

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

widths of up to 3,800 mm for Q+T)

Plate length:

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

lengths of up to 13,200 mm for Q+T)

Ordered weight:   

At least 2 tons per line item

Unit weight:

11.7 tons max. per single plate

Shipbuilding steel plates

Shipbuilding steel plates

Our shipbuilding steels in normal and high-strength grades are used in offshore applications, platform superstructures and for special ships in the oil and gas industry.

Areas of application

Steel shipbuilding plates are used in the cabin structures of cruise ships. The especially thin but wide plates are used for such applications to offer the best processing properties such as flatness and weldability. In contrast, high-strength, thermomechanically rolled shipbuilding plates are used in offshore applications. They are used for platform superstructures or for special ships in the oil and gas industry.

Safety and quality

We guarantee the highest safety and quality standards and meet all the requirements of renowned certification companies.

  • DNV-GL
  • Registro Italiano Navale (RINA)
  • Bureau Veritas (BV)
  • Lloyd's Register of Shipping (LRS)
  • 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



Plate thickness

5–140 mm max. (dependent on width 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.

Plattierter Behälter

Clad plates

Roll-bonded clad plates are the economic alternative to expensive high-alloy and non-clad plates. The mechanical properties of the base material are optimally combined with the corrosion resistance of the cladding material.

Our roll-bonded clad plates and heads are found in chemical equipment applications and refineries, in the oil and gas industry, coke drums and the food industry. Clad plates are also used in seawater desalination and flue gas desulfurization plants.


Clad plates consist of a base and a cladding material.

The base materials for our clad plates are produced exclusively in our own steelmaking plant in Linz. Cladding materials are purchased in the form of slabs and sheets from renowned manufacturers.

The base materials are predominantly made of structural steels, steels for boilers and pressure vessels and fine-grained structural steels, all of which are characterized by good weldability and formability.

Cladding materials are made of ferritic and austenitic stainless steels, nickel and nickel-based alloys, copper and copper-nickel alloys, all of which have excellent anti-corrosive properties.

Further material details are contained in the brochure that you can open below.

The base material surfaces are generally delivered in as-rolled or shot-blasted condition.

In almost all instances, the surface of the cladding material is polished. Our standard polish is 80 grain. Other grain sizes are available upon request.

Here you will find more information about delivery conditions and certifications for clad plates.

Available dimensions

Cladding material 

Ferritic and austenitic stainless steel

Copper, nickel alloys

Total thickness

6–150 mm

6–65 mm

Cladding thickness

1.5–10 mm

1.5–10 mm


3,800 mm max.

3,800 mm max.


15,000 max. (12,400 mm Q+T max.)

15,000 max.

(12,400 mm Q+T max.)

Unit weight

2–18 tons

2–9 tons

Surface area

6 m² min.

6 m² min.


Wear-resistant plates

Our durostat® and altrix® are attractive special grades for applications that require a high level of wear resistance.

Parts used in abrasive environments wear out quickly. In order to lengthen the service life of such components, we have developed two special steel grades whose service life is significantly longer than that of conventional steels. Our online-hardened durostat® carbon steels are especially wear-resistant and demonstrate the best processing properties. Our highly wear-resistant altrix® steels include multi-layer plates for an even longer service life.


High-strength plates

High-strength plates made of fine-grained steel have a minimum yield strength of 620 and 700 MPa, and ultra-high-strength special grades achieve yield strengths of up to 1100 MPa.

Higher stresses

Machines and buildings are becoming ever larger. When you double the values of length, width and height of a component, the weight grows by a factor of 8, while the supporting cross-sectional area only grows by a factor of 4. This doubles the stress, which is calculated with the weight divided by the cross-sectional area. High-strength steels are capable of supporting these higher stresses and simultaneously lead to decreased weight of the component.

Specific advantages

The low weight of high-strength and ultra-high-strength heavy plates saves costs: The pre-material expenses, transport charges, and the assembly and foundation costs drop drastically. Add to that the costs saved during further processing of the material. Thanks to the excellent welding properties, work can proceed quickly and efficiently. On top of this, much less filler metal is required, and the weld seam test is simplified.

Our portfolio

We deliver high-strength heavy plates as fine-grained steels with a minimum yield strength of 620 and 700 MPa and ultra-high-strength heavy plates with a minimum yield strength of 900, 960 and 1100 MPa as special voestalpine grades.

  • 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 steel
  • 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

Reeling einer Tiefsee-Pipeline

Linepipe plates

voestalpine Grobblech GmbH is one of the world's leading producers of sour-gas-resistant linepipe plates. We specialize in modern thermomechanical rolling technology with accelerated cooling.

Specialist for extreme conditions

Extremely low arctic temperatures, extreme pressures in the deep ocean, acid media: Even the most difficult conditions have no negative effect on our linepipe plates. Our plates are found in depths of up to 3,000 meters below the sea surface, either in the form of sour-gas-resistant linepipe plates or as land lines up to 48 inches (1,220 mm) in diameter. We also offer roll-bonded clad linepipe plates with a corrosion-resistant cladding for the highest demands in sour-gas application. As a specialist in modern thermomechanical rolling technology with accelerated cooling, we are among the world's industry leaders. More than two million tons of sour-gas-resistant linepipe plates and high-toughness linepipe plates for thick-walled deep-sea lines testify to the success of our high-quality products.

Steel grades 

according to API 5L

BM, X52M, X56M, X60M, X65M, X70M, X80M, X100M, X120M

according to EN 10208-2

L245MB, L360MB, L415MB, L450MB, L485MB, L555MB

according to DNV OS-F101

SAWL245, SAWL360, SAWL390, SAWL415, SAWL450, SAWL485, SAWL555

according to ISO 3183:

L245M, L360M, L390M, L415M, L450M, L485M, L555M



Plate thickness 

9.5–63 mm

Plate width

1,400–3,800 mm (48" pipe diameter max.), dependent on thickness and steel grade; narrower widths upon request

Plate length

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

Unit weight

20.0 tons max. per single plate

Our linepipe plates are thermomechanically rolled and accelerated-cooled. All grades available upon request as sour-gas-resistant at pH3 or pH5 according to NACE TM 0284 Solution A and B. All grades can be delivered with notched-bar impact and Battelle test (BDWTT) at temperatures below 0 °C. HIC tests for sour-gas applications upon request.

Civil Engineering

Civil Engineering

Automotive industry

Automotive industry

Automotive subsuppliers

Automotive subsuppliers

Mechanical engineering

Mechanical engineering