Welded stainless steel tubes in straight lengths and coils

CSM TUBE manufactures precision welded stainless steel tubes using TIG or laser welding processes developed in-house by the Group. The company stands out for its ability to handle extremely thin wall thicknesses, ranging from 0.30 mm to 2.11 mm, with outside diameters from 5.00 mm to 32.00 mm, ensuring structural integrity and consistently high quality standards for every production batch.

Technical specifications:

• Diameters: from 5.00 mm to 32.00 mm
• Wall thicknesses: from 0.30 mm to 2.11 mm
• Dimensional tolerances: ISO 1127 / EN 10217-7 (classes D4, T3)
• Welding: laser / TIG

Supply formats: straight lengths and coils

Thanks to its flexible production, CSM TUBE supplies tubes in two main formats:

• Tubes in straight lengths: straightened and cut-to-length tubes, up to 23 meters.
• Tubes in coils: wound in coils with continuous lengths up to 2200 meters, pressure tested up to 70 bar (with testing capability up to 100 bar on request), ideal for customers using automated uncoilers and cutting lines.

Materials

The product range goes beyond standard stainless steels, covering application requirements in highly corrosive environments or at elevated temperatures:

• Austenitic (300 series): e.g. 304, 304L, 316L, 321 for applications requiring significant cold plastic deformation (expansion, bending, rolling) and corrosion resistance.
• Ferritic (400 series): e.g. 409, 439, 441, 444 ideal for applications requiring higher thermal conductivity, lower thermal expansion, while maintaining good corrosion resistance.
• Duplex (2205): for applications requiring very high corrosion resistance, particularly in saline environments.
• Nickel alloys: high-nickel alloys (such as Alloy 600, 601, 800, 825) for extreme resistance to high-temperature oxidation and elevated temperatures.

Quality control and traceability

The strip is tested using XRF, supported by a traceability system ensuring 100% PMI on the finished product.

Each tube is identified through in-line marking in compliance with applicable standards.

This digitalized process integrates production data with laboratory data, making it possible to trace the results of destructive tests (drift expanding, flattening, tensile and burst tests) and non-destructive tests (eddy current testing) at any given time.

The entire production cycle is monitored across three production shifts by a Quality Control Center, where teams of specialized technicians use advanced equipment to ensure the structural and dimensional compliance of each batch.

Contact the CSM TUBE technical department to define the specifications of your next production batch.