Here we are!

Worldwide only manufacturer of tubes and fittings in special materials according to ASME BPE specification!

Dockweiler AG is Europe’s first and worldwide only certified manufacturer of stainless steel tubes and fittings according to the ASME BPE specification in standard as well as in special materials.

With this certification through the American Society of Mechanical Engineers (ASME) Dockweiler produces ASME BPE compliant products in different alloys such as 316L, 1.4435, C22 and AL6XN for highly corrosive applications.

Currently the ASME BPE standard is accepted in 113 countries worldwide. Dockweiler’s certified products that are compliant to the ASME BPE-Standard offer the customer the maximum of legal and product safety on this global market.

Dockweiler offers tubes and fittings in the standard material UNS S31603. But our unique feature is that we also offer tubes and fittings in further materials with specified sulfur according to ASME BPE, Part MM. 


These special materials include among others:


  •       1.4435 / UNS S31603 (316L)
  •       1.4539 / UNS N08904 (904L)
  •       2.4602 / UNS N06022 (C22)
  •       AL6XN / UNS N08367



Here you can find out more about Dockweiler and ASME BPE: