Tubes and pipes
Inside the CSM TUBE range: from diameters to application sectors
CSM TUBE, part of the CSM Group, was founded in 1983 to supply small-diameter tubes to the sheathed heating element sector. Over time, the company has expanded its product range and international presence, reaching an annual production of around 12,000 tonnes of tubes, with manufacturing plants and commercial structures in Italy, Germany, the United States, and Brazil.
Today CSM TUBE produces TIG and LASER welded tubes without filler material in stainless steel and nickel alloys for numerous industrial sectors. Below is an overview of the production range, focusing on dimensions, materials, supply conditions, and applications.
Dimensional range and materials
Production covers diameters from 5.00 to 32.00 mm and wall thicknesses from 0.30 to 2.11 mm, compliant with the applicable European and American standards, in particular EN 10217-7 and ASTM A249 – ASME SA249, and dimensional tolerances compliant with ISO 1127 (classes D4, T3). The tubes are available in two formats:
- straight lengths, straightened and cut to size, up to 23 meters;
- coils, wound in continuous lengths of up to 2,200 meters, pressure tested up to 70 bar (with testing capability up to 100 bar) and designed for automated uncoiling and cutting lines.
This range is complemented by a wide range of materials, from austenitic and ferritic stainless steels to duplex and super austenitic grades, up to nickel alloys for the most demanding applications.
Condition and supply terms
CSM TUBE supplies tubes in three distinct conditions: W0 (as-welded), W2R (welded and bright annealed), and W2Rb (annealed with bead rolling, for internal surface finishing). The heat treatment, carried out in in-line induction furnaces at temperatures of 1,000-1,050°C for austenitic grades, restores metallurgical homogeneity and eliminates residual post-welding stresses — a step that improves the tube’s workability in subsequent processing.
One tube, six industrial worlds
From electric heating elements to automotive EGR systems, the CSM TUBE range spans six main industrial sectors, each with its own constraints on materials and tolerances:
- Automotive – tubes for EGR and DPF systems, glow plugs, and fuel lines.
- Residential and industrial heating – dip tubes, tubes for electric heating elements in water heaters, coils for condensing boilers and storage systems, tubes for solar thermal collectors.
- Food & beverage – beverage dispensers, beer and water coolers, professional coffee machines.
- Sheathed electric heating elements – tubes for household appliances, commercial catering equipment, and industrial boilers. They feature tight tolerances for filling with ceramic insulating materials and for the rolling process of the heating element.
- Heat exchangers – tubes for shell-and-tube heat exchangers, condensers and finned evaporators, with mechanical characteristics customizable according to the application, including hardness, yield strength, and elongation.
- Energy and power generation – biogas and biomethane plants, industrial solar thermal, heat recovery, compliant with EN 10217-7, ASTM A249 and ASME SA249 standards.
In some cases the tube is only the starting point. Thanks to synergy with CSM MACHINERY and CSM TRANSFORMING, the CSM Group also handles processing aimed at product verticalization, such as bending, end-forming and cutting, supplying components ready for direct integration into heat exchangers, electric heating elements, and manifolds.
What's behind every batch
The Quality Control Center operates on three shifts and performs 100% chemical analysis (XRF/PMI), non-destructive testing (eddy current), and destructive tests such as tensile, hardness, drift expanding, and flattening. For the automotive and energy sectors, burst testing up to 1,000 bar is also carried out, with full digital traceability of every batch. The quality system is supported by ISO 9001, ISO 14001, ISO 45001, and IATF 16949 certifications, as well as product certifications such as PED 2014/68/EU, AD2000/AD Merkblatt W2, and ASME.
To learn more about the range of tubes and processing available or to define the specifications best suited to your application, we invite you to visit the online stand on Expometals >>
