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Metal bellows and metal bellows combinations

The term metal bellows refers to a structure that is composed of one or more stainless steel sleeves fitted into one another and is rendered elastic by the introduction of parallel corrugations.

Metal bellows can be arranged to complete combinations of metal bellows (expansion joints). Thus, every specific requirement can be met.

As raw material for the sleeve production, stainless steel strips or sheets with a thickness of 0.15 - 3 mm in the standard grades are used:

  • 1.4541 / AISI 321
  • 1.4571 / AISI 316Ti
  • 1.4404 / AISI 316L
  • 1.4307 / AISI 304L                                                             

material with high chemical resistance and temperature resistance:  

  • 1.4435 / AISI 316L
  • 1.4539 / AL 904L
  • 1.4878 / AISI 321H
  • 1.4828 / AISI 309
  • 1.4462 / AISI 318 LN
  • 1.4410 / AISI F53

or additional special materials:     

  • 1.4876 / Incoloy 800HT
  • 2.4858 / Incoloy 825
  • 2.4856 / Inconel 625
  • 2.4816 / Inconel 600
  • 2.4610 / Hastelloy C-4
  • 2.4819 / Hastelloy C-276
  • 2.4602 / Hastelloy C-22
  • 3.7035 / Titan

By forming the radial, parallel, omega-shaped corrugations, the material becomes strain hardened, thus attaining the properties of high compressive strength and flexibility. Various methods can be applied to create the corrugations – using mechanical, hydraulic means or by elastomer deformation. The applied method is based on the geometry of the metal bellows, the material and the quantity to be produced.

Flexomat GmbH is able to determine the design of the optimum component and manufacture the same for almost every application, as part of the various existing manufacturing processes, based on the wide range of material qualities and material thickness values and an individual calculation and design of the metal bellows.

metall bellows DN100 with cylindrical ends

metall bellows DN150 with middle pipe an cylindrical ends

metall bellows DN3100

Contact & Order

For further product information
and ordering please contact:

+49 35242 43 94-100

service@flexomat.de