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CARBON STEEL WELDED TUBES

More than 50 years of history has led Marcegaglia to develop the world’s widest range of steel welded tubes in terms of steel grades and dimensions, compliant with the requirments of several industry sectors. Marcegaglia ERW carbon steel tubing manufacturing is at the core of the group activities since its foundation, and now counts on 150 tube mills worldwide and an overall manufacturing capacity of more than 3 million tons/year.
The fabrication process is compliant with all main European norms.

Structural and precision mechanical applications, as well as pressure purposes (including heat exchangers, heating and ventilation, gas and water line pipes, chemical industry) automotive and furniture sectors are among the industries served by Marcegaglia.

Among quality systems involved in the production of hollow sections, tube and pipe:

  • ISO/TS 16949:2009 (automotive)
  • ISO/TS 29001:2011 (petroleum, petrochemical, natural gas)

Among product certifications available:

  • CE marking for structural tubes EN 10219(D.E. 89/106/EEC)
  • AD 2000 – W0 for tubes for pressure purposes
  • RINA approval for tubes for naval construction
PRODUCT RANGE KLUCZBORK
Rounded Tubes
Min-Max. thickness (mm) 0,3 – 16
Min-Max. diameter (mm) 12-168,3
Square Tubes
Min-Max. thickness (mm) 0,8 – 8
Min-Max. ext. size (mm) 10×10 -125×125
Rectangular Tubes
Min-Max. thickness (mm) 0,8 – 8
Min-Max. ext. size (mm) 15×10 – 180×80
PRODUCT RANGE GLOBAL
Min-Max. thickness (mm) 0,3-16
Min-Max. diameter (mm) 8-406,4
SUPPLY CONDITIONS
  • Dimensional tolerances according to manufacturing standard
  • Special tolerances upon request
  • Control documents 2.1, 2.2, 3.1, 3.2 according to EN 10204 and specific norm requirements
MANUFACTURING STANDARD - PRODUCT DESIGNATION
EN 10305-3 Round and shaped precision tubes
EN 10305-5 Square and rectangular precision tubes
EN 10219 Cold formed welded structural tubes (CE homologation)
EN 10210 Structural hollow sections of non-alloy and fine grain steels, hot finished or cold formed and heat treated
EN 10217-1 Tubes for pressure purposes, for use at room temperature
EN 10217-2 Tubes for pressure purposes, for use at high temperatures
EN 10208-1 Steel pipes for pipelines for combustible fluids
EN 10224 Tubes for the conveyance of water and other aqueous liquids
EN 10255 Tubes suitable for welding and threading
STANDARD AND OPTIONAL TESTING

• Chemical composition
• Tensile test
• Flattening test
• Expansion test
• Impact test
• Eddy current test
• Flux leakage test
• Ultrasonic test
• Visual test
• Hydraulic test
• Dimensional test
• Micrographic analysis
• Release of special certificates

OPTIONAL PROCESSING

• Suitability for subsequent galvanizing
• Complete normalization or weld area normalization
• Additional heat treatments
• Weld seam removing
• Special end finishing
• Cut to length
• Customer defined marking
• Restricted tolerances
• Welding position
• Surface roughness measurement
• Delivery with no corrosion protection
• Specific corrosion protection
• Specific packaging method
• Unit testing composed of tubes from a single casting
• Hot galvanization

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