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voestalpine Tubulars GmbH & Co KG

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VTS®-edgeTubes

Seamless squaring the circle

VTS®-edgeTubes are seamless square and rectangular hollow sections that are primarily used in agriculture, constructions, mechanical engineering and mobility.

Discover the world of seamless hot-rolled hollow sections from voestalpine Tubulars and experience quality, reliability and innovation at first hand.

voestalpine Tubulars has many years of experience in the production of seamless round tubes and stands for quality, flexibility and safety. We will thus be able to produce hot-rolled seamless square and rectangular hollow sections up to 20 mm wall thickness. 

Technical data:

  • Square: 40 x 40 to 170 x 170 mm

  • Rectangular: 50 x 30 to 200 x 100 mm

  • Wall thickness: up to 20 mm (>20 mm on request)

  • Corner radius: Ra ≤ 1,6T (special Ra requirements on request)

  • Lengths: 6.000 mm to 14.000 mm

  • Standards: EN 10210

  • Steel grades: S235 to S890 (further steel grades on request)

Product features:

Tighter corner radius

  • Ra ≤ 1,6T (special Ra requirements on request)

Defined design of outside corner

  • Due to seamless hot-rolling process

Larger cross-sectional areas

  • Due to tighter corner radius
  • Enables wide range of applications

Excellent weldability

  • Less welding filler required

No weld seam

  • Due to seamless hot-rolling process
  • No mechanical weak point

Superior load-bearing capacity

  • Larger spans possible

Low residual stress

  • Due to homogeneous structure

Weight minimisation

  • Due to the availability of high-strength steel grades
  • While maintaining load-bearing capacity

Customer benefits:

  • Geometric advantages
  • Consistent and reliable mechanical properties
  • Superior load-bearing capacity
  • No weld seam
  • Higher vibration resistance
  • Surface structure
  • Weight saving due to high-strength steel grades
  • Customised intermediate dimensions
  • Wide range of applications
  • Great opportunities for further processing
  • Low residual stress

Product Solutions

Agriculture

» Machinery and equipment for soil cultivation and plant protection
» Agriculutral equipment (harrowers, seed drills,...)
» Roll-Over-Protective-Structure (ROPS)
» Fall-Over-Protective-Structure (FOPS)

Constructions

» Support structure for large-scale and photovaltaic systems
» Wind energy (offshore, onshore)
» Rides (rollercoaster,...)
» Building, hall and roof construction
» Bridge building
» Airports & sport stadiums
» Offshore constructions (jack-up Rigs, platforms)

Mechanical Engineering

» General mechanical engineering in various fields of application
» Crane construction (booms for tower cranes, mobile cranes and ship crances)
» Transport systems
» Lifting platforms
» Ski lifts

Mobility

» Frame parts
» Cabin/roll over protection
» Trailers (axle tubes, support structure, etc.)
» Base carrier for trailers
» Fall-Over-Protective-Structure (FOPS)

Standards and quality testing methods

  • EN 10210 - hot-finished hollow sections for structural steelwork made of unalloyed structural steels

    • EN 10210-1 -> unalloyed structural steels and fine-grained structural steels (up to S460)
    • EN 10210-2 -> Limit dimensions, dimensions and static values
    • EN 10210-3 -> Higher strength steels (S460 bis S960)

    CE marking in accordance with Directive 93/66/EWG

    EU Construction Products Directive (89/106/EWG)

  • Visual inspection

    • Surface
    • Straightness
    • Twisting
    • Height/width/length
    • Corner radius
    • Squareness
    • Curvature
    • Concavity/convexity

    Chemical analysis

    • Melt analysis
    • Optimal piece analysis

    Destructive testing

    • Tensile testing
    • Impact test according to standard

  • Automatic geometry measurement

    • In hot and cold condition
    • Measurement over the entire pipe length

    Destructive testing

    • Hardness testing on request

    Accredited testing center

New Sales Office

We have opened a new sales office in Düsseldorf, which is primarily responsible for supporting European customers in the hollow section segment.

FAQs

  • As the name suggests, seamless hollow sections have no weld seam and therefore there is no potential predetermined breaking point. This prevents faults or failure of the hollow section at the seam.

  • voestalpine Tubulars offers hollow sections in square and rectangular shapes. The portfolio currently includes square dimensions from 40 x 40 mm up to 170 x 170 mm and rectangular dimensions from 50 x 30 to 200 x 100 mm.

    However, this is being continuously expanded and further developed.

  • Our seamless hollow sections are used in a wide variety of areas. These include structures such as support structure for large-scale and photovoltaic systems, hall and building construction, agricultural equipment, mechanical engineering and the mobility sector.

  • The leading standard for hollow sections is EN 10210, which defines the requirements for the pipe. The seamless hollow sections from voestalpine Tubulars fully comply with this standard.

  • With seamless hot-rolled hollow sections, the homogeneity of the material properties can be guaranteed across the entire cross-sectional area. Furthermore, a tighter corner radius can be produced while maintaining the same product properties. 

  • The main special features are the homogeneous structure across the entire cross-sectional area and the tighter corner radius achieved through the seamless hot rolling process. In addition, our seamless hollow sections have no mechanical weak point due to the lack of a weld seam and can be used for a wide range of applications.