Service

Service with the highest quality standards

Quality is our top priority – from receipt of the pipe to delivery of the finished pipe bend.

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Heavy-wall steel pipe bend as a high-pressure fitting

Quality assurance

The same quality in every bend

A quality management system documents and monitors every order – from receipt of the pipe to delivery of the pipe bend. Checks at every production step ensure that each bend in a series has the same quality.

Internal and external audits support the continuous improvement of our processes. Our certifications and approvals:

  • ISO 9001:2015 (valid until 31 Oct 2029)
  • DNV (valid until 10 Feb 2028)
  • Pressure Equipment Directive 2014/68/EU (formerly 97/23/EC) (valid until end of December 2027)
  • AD 2000 Merkblatt W0 (valid until end of December 2027)

Inspections can also be carried out with Lloyd’s Register, Bureau Veritas, Det Norske Veritas and the American Bureau of Shipping.

Heat treatment

In-house heat treatment

Three furnaces controlled by a central computer allow normalising, stress-relief annealing and solution annealing. Every heat treatment is recorded and documented.

Heat treatment of pipe bends in the furnace

Normalising

Removes irregularities in the microstructure. This is followed by controlled cooling and, for some materials, tempering.

Tempering: 700–780 °C

Stress-relief annealing

Reduces the stresses created during forming. The temperature is lower than for normalising; the bend then cools in air.

Solution annealing

For austenitic steels: the bends are heated and then cooled rapidly in a water bath.

1020–1080 °C

Services

More than the pipe bend

  • Drawings
  • Wall thickness calculation
  • Small-batch production
  • Machining
  • Surface treatment and corrosion protection
  • Additional marking
  • Additional material testing
  • Parcel shipping
  • Express delivery
  • Neutral shipping to end customers
  • Special export packaging

Downloads

Certificates and documents

Questions about testing or certificates?

We are happy to advise you on materials, scope of testing, heat treatment and documentation.

Get in touch →+49 5223 4960-0