CARBON STEEL WELDED TUBES
round, squares, rectangles and special shapes
Marcegaglia: carbon steel tubes for every needs
The acquired leadership is the result of a long, solid and steady growth path, which makes Marcegaglia one of the major independent global player in steel transformation, expressing a unique industrial model.
The production range includes multiple sizes and different shapes to meet every application requirement, with diameters from 8 to 406.4 mm, thicknesses from 0.3 to 16 mm and verticalization for many industrial sectors.
Starting from steel tubes for precision applications, Marcegaglia aims to cover the needs of each market sector, such as distribution, construction, food and dairy industry specializations, industrial engineering, automotive and mechanical engineering. With great versatility and flexibility, Marcegaglia Carbon Steel precision tubes range allow to meet the needs of specific segments such as radiators, winding cores, greenhouses, windows, fences, furnishings, sport equipments, automotive, mechanical industry and many others. In addition, special customized shapes are engineered according to customer specifications.
Marcegaglia meets the demands of the building and construction sector with a wide range of cold formed welded tubes for structural applications (CE), non-alloy and fine grain steel hollow sections, hot finished or cold formed and heat treated. The offer of tubes for micropiles is the widest in the world, responding to the different needs of consolidation and foundations.
Marcegaglia’s carbon steel tubes range is further enriched by tubes for pressure purposes, steel pipes for pipelines for combustible fluids, tubes for the conveyance of water and other aqueous liquids, tubes suitable for welding and threading, and OCTG tubes as well.
To satisfy the engineering purposes, Marcegaglia provides a range of tubes of circular cross section made of non-alloy and alloy steels for mechanical and general engineering applications.
Marcegaglia is constantly engaged in the implementation of the supply chain and in the development of new processing and finishing. This commitment is also expressed in the support provided to some technologically advanced sectors and in the assistance provided to customers to research new products and applications, responding to the manufacturing market with all possible steel geometry.
|Thickness min. – max. (mm)
|0,3 – 16
|Diameter min. – max. (mm)
|8 – 406,4
|Round and shaped welded and cold sized steel tubes for precision applications
|Square and rectangular welded and cold sized steel tubes for precision applications
|Cold formed welded structural tubes (CE homologation)
|Structural hollow sections of non-alloy and fine grain steels, hot finished or cold formed and heat treated
|Tubes for pressure purposes, for use at room temperature
|Tubes for pressure purposes, for use at high temperatures
|Steel pipes for pipelines for combustible fluids
|Tubes for the conveyance of water and other aqueous liquids
|Tubes suitable for welding and threading
|Welded circular steel tubes for mechanical and general engineering purposes
|Black and zinc-coated, welded and seamless tubes for structural steel or for low-pressure plumbing.
|Electric-resistance-welded carbon steel tubes and carbon-manganese steel boiler and superheater tubes
|Cold-formed welded and seamless carbon steel structural tubing in rounds and shapes
|Steel pipes for use as casing or tubing for wells – OCTG casing and tubing
|Welded steel pipes for use in pipelines transportation systems in petroleum and natural gas industries
- 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
Pipes are supplied in 6000 and 12000 mm lengths (tolerances ±50 mm) unless otherwise specified in order
- 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
Marcegaglia is able to supply the widest offer in the world of welded and cold sized steel tubes for precision applications EN 10305-3 and EN 10305-5, to meet the needs of each market segment.
With great versatility and flexibility, Marcegaglia precision tubes allow to respond to the needs of specific uses such as radiators, winding cores, greenhouses, windows, fences, furnishings, sport equipments, automotive, mechanical industry and many others.
The range is divided into round, square, rectangular, oval, elliptical, triangular and semi-oval tubes and is completed by a very wide range of special shapes, with the possibility of customizing on customer needs
EN 10305-3 S1, S2, S3, S4
Steel radiators are a key element for furnitures, since they can be manufactured in different shapes and in many types. The most used are standard multi-column, plate, lamellar, up to tubular towel dryers. Steel radiators are light and space-saving compared to traditional cast iron ones, they are characterized by a refined aesthetic, to sometimes become real design elements integrated into the furniture.
EN 10305-3 S1, S2, S3, S4
Rolling for industrial handling and automation is of great importance in many sectors: the use of conveyor belts and winders allows
an increase in production and a better quality of the production environment. Furthermore, the growing demand for consumer products, required by the development of online commerce, ask logistics companies to reply more and more promptly.
Greenhouses are a key element for agriculture, horticulture and floriculture. The revolutionary hydroponic, aquaponic and aeroponic systems are revolutionizing the market also through the construction of “vertical farm” “plantscraper”. Marcegaglia serves the sector with a range of welded that is at the forefront both to meet structural needs, for the construction of roofs, with single-pitch, double-pitch, symmetrical, asymmetrical, hybrid, solar greenhouses, as well for the needs of heating and cooling.
EN 10305-3 S1, S2, S4
Marcegaglia manufactures a wide range of precision tubes EN 10305-3 S1, S2, S4 for windows:
thanks to its versatility and efficiency, steel is the best choice in for constructions, to guarantee multiple shapes and every possible geometry.
EN 10219, EN 10210-1, ASTM A500
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 micropiles are structural foundation elements used in the building sector, for consolidation and foundations. Their main function is to transfer the load, applied to their top, to the deeper soil layers, in order to counteract the geostatic forces and to give stability to the structures in elevation. They are used to limit the structure’s sagging, to protect the foundations of bridges that fall into the riverbed from erosion or even to create off-shore structures and underpinning interventions.
EN 10217-1, EN 10217-2
ASTM A53, ASTM A178, A178M
Tubes for pressure purposes are distinguished according to the type of fluid conveyed, the mass of the fluid contained and the operating pressure, which determines the use of alloyed or unalloyed carbon steels, according to the manufacturing standards EN 10217-1 (ambient temperature), EN 10217-2 (high temperatures). They have multiple applications such as heat exchangers, heating and ventilation, gas and water pipes and all the chemical industry sector.
Steel pipes for pipelines for combustible fluids are regulated by EN 10208-1 standards which specifies the technical conditions of supply. These are seamless and welded steel pipes used for the transport of combustible fluids on the ground and mainly used in gas supply systems.
EN 10217-1, -2 / EN 10208-1 / EN 10224
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.
API 5CT, API 5L
OCTG Country Tubular Goods are standardized by API, American Petroleum Institute and there are three main types of OCTG tubes, which includes drill pipes, casing pipes and tubing pipes.
Drill pipes are seamless tubes manufactured to transfer drilling torque the entire length of the pipe, often several kilometers. Casing pipes are tubes used to line the borehole, which is the actual hole dug into the ground to get to the oil. Tubing pipes are tubes that goes inside the casing pipe, for delivery the oil and gas to the surface.
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.