Process: Fundamentals

Our production techniques are adapted to the high requirements our customers place on our products.

Hot Extrusion
is a production process for manufacturing hot finished tubes, pipes, re-draw hollows and hollow bars in stainless steels and nickel-based alloys. Our range of dimensions includes

  • outside diameters from 42 up to 300 mm (1.65 up to 11.81 inches) and

  • wall thicknesses from 2,7 up to 50 mm (0.11 up to 1.97 inches)


Trenner (breit)


Cold Pilgering
is the preferred production process for seamless, cold- finished, high alloyed stainless steel and nickel-based alloy tubes and pipes. This technique provides a highly efficient, fast production rate, close tolerances and cost-effective, competitive products.

Our production range covers

  • outside diameters from 6 up to 219.1 mm (0.24 up to 8.63 inches) and

  • wall thicknesses from 0.5 up to 30 mm (0.02 up to 1.18 inches)


Trenner (breit)


Cold Drawing
is the ideal process for achieving very close tolerance ranges, especially for outside diameters. Additionally, the cold drawing process is the perfect choice when a low forming ratio is required. 

  • outside diameters from 0.2 up to 51 mm (0.008 up to 2.0 inches)

  • wall thicknesses from 0.05 up to 6 mm (0.002 up to 0.24 inches)

Mannesmann Stainless Tubes GmbH
Wiesenstraße 36
45473 Mülheim an der Ruhr




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