Carbon steel welded tubes - Marcegaglia Carbon Steel

the European leader
in carbon steel welded tubes

Carbon steel welded tubes for every needs

Marcegaglia Carbon Steel develops one of the world’s widest ranges of welded carbon steel tubes, produced through more than 150 processing lines within a fully controlled and integrated supply chain. With outside diameters from 8 to 406.4 mm and wall thicknesses from 0.3 to 16 mm, the range covers every application – from precision components to heavy structural use – ensuring flexibility, reliability and dimensional accuracy across all sectors.

Manufactured from hot-rolled, cold-rolled and galvanized strip, Marcegaglia tubes are available in round, square or rectangular sections, meeting the requirements of multiple standards including EN 10305-3/5 (precision tubes), EN 10219/10/17 (structural and pressure tubes), EN 10208/24 (pipelines for combustible fluids and liquid conveyance) and ASTM/API for special applications.

PRODUCT RANGE

Thickness min. – max.

0,3 – 16 (mm)

Width min. – max.

8 – 406,4 (mm)

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Serving industries such as construction, mechanical and industrial engineering, automotive, distribution and food and dairy, the product range also includes micropile tubes, hollow sections and tubes for pressure or threading applications. Thanks to advanced processing and finishing technologies, Marcegaglia designs both standard and customized grades, guaranteeing traceability and consistent quality throughout production.

Driven by continuous innovation, the company collaborates closely with customers to develop new solutions and geometries, delivering high-performance tubular products that combine precision, versatility and sustainability for modern engineering and infrastructure projects.

Marcegaglia offers the world’s widest range of welded and cold-sized steel tubes for precision applications compliant with EN 10305-3 and EN 10305-5 standards. The range includes round, square, rectangular, oval, elliptical, triangular and semi-oval tubes, along with a vast selection of custom-engineered special shapes designed to meet specific customer requirements.

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Tubes for structural applications

Cost-efficiency, durability, versatility, recyclability: steel is the sustainable choice for contemporary architecture.

Marcegaglia reply to the sector’s requests with a wide range of cold formed welded tubes for structural uses (CE homologation) and structural hollow sections of non-alloy and fine grain steels, hot finished or cold formed with heat treatments.

Tubes for cardans

Tubes for cardan shafts and mechanical transmissions are designed to provide torsional resistance, durability and dependable performance.

They are used in car axles, truck axles, land treatment, harvesting and forestry, where dynamic loads require high-quality materials and precision manufacturing.

Suitable for honing, skiving and roller burnishing tubes

These tubes are engineered for subsequent internal finishing processes such as honing, skiving or roller burnishing.

Their versatility makes them suitable for earth moving, buildings, material handling and transport, delivering dimensional consistency and dependable performance even under demanding conditions.

Ready to use cylinder tubes H9

Ready-to-use H9 cylinder tubes are designed to deliver high precision and excellent internal surface quality.

They are widely employed in agriculture and lifting applications, ensuring smooth operation, reliability and long service life.

Automotive applications

The automotive industry demands reliable, high-performance and precise materials. Marcegaglia carbon steel meets these requirements with a complete range of coils, strips, sheets and tubes designed to ensure strength, formability and consistent quality.

Used in structural components, safety systems and mechanical parts, Marcegaglia steel guarantees high performance even in critical applications, supporting processes such as stamping, fine blanking and welding. A solid and competitive solution for all major automotive applications.

Tubes suitable for chrome plating

These tubes are developed for hydraulic rod manufacturing and are intended for subsequent chrome plating.

They ensure high surface cleanliness, excellent machinability and mechanical strength, supporting corrosion resistance, durability and top-level hydraulic performance.

Tubes for telescopic cylinders

Tubes for telescopic cylinders guarantee strength, precision and smooth extension and retraction movements.

They are used in light tipping, industrial and agricultural applications, where robustness and long-lasting performance are essential.

Skived and roller burnished cylinder tubes H8

Skived and roller burnished H8 tubes offer extremely tight tolerances and excellent internal surface finishing.

They ensure efficiency, operational stability and durability, making them ideal for high-pressure hydraulic systems and applications requiring maximum reliability.

Tubes for welding and threading

Tubes for welding and threading are unalloyed carbon steel round tubes whose manufacturing standards are regulated by EN 10255.
These tubes are used for conveying gas and water in plumbing and heating systems, in sprinklers or in firefighting systems.

The use of a threaded tubes in the construction of the implants allows screwing, which facilitates installation.
The threads can be of the “male” type, with the mouth on the outside, or the “female” type, with the mouth on the inside.
The threaded end of the pipes is always of the male type, while that of the various fittings can be of the male or female type.

Tubes for the conveyance of water and liquids

Tubes for the conveyance of water and other aqueous liquids are made of non-alloy steel and can be welded or without welding.
They are regulated by EN 10224 standards which envolves industrial water transportation and distribution systems.

Marcegaglia answers to the market needs by offering a wide range carbon steel tubes, in steel grades L235, L275, L355 and of multiple sizes.

the European leaderin carbon steel welded tubes