Pipe fittings for European defence companies
Made in Unna, Germany, from European raw material only. Custom-built from single pieces to small series, with exclusive manufacturing rights on request.
What matters for pipe fittings in the defence industry?
In short: In defence projects, the drawing alone does not decide whether a supplier qualifies. The origin of the material, the handling of confidential data and availability within your own economic area count as well.
Nirotec manufactures pipe fittings in Unna and aligns material, process and documentation with the requirements of your project. You can also find our defence division at Ruhr Defense.
Confidentiality
- Non-disclosurenon-disclosure agreement before the first drawing, on request
- Accessonly for the employees involved in the project
- Disclosureto third parties, including subcontractors, only with your written consent
Exclusive manufacturing rights
- For you onlyon request, we manufacture special components for you alone
- Toolingtools, dies and fixtures for your project are not used for any other customer
- Framework contractterm and minimum purchase quantities are agreed together
Pipe fittings for the defence industry at a glance
- Products
- Elbows, Tees, Reducers, Flanges, Special parts and drawing parts
- Manufacturing
- forming, heat treatment, machining and quality inspection at our own site in Unna
- Dimensions
- up to DN 600, wall thicknesses up to 100 mm, piece weight up to 1,000 kg
- Processes
- cold and hot forming up to 1,150 °C on presses up to 1,500 t, hydroforming
- Materials
- Stainless steel, duplex and super duplex, nickel-based alloys, creep-resistant and quenched and tempered steels, copper-nickel – European raw material only
- Batch sizes
- samples, single pieces and small series, no minimum lot size
- Documentation
- inspection certificates to EN 10204 3.1 / 3.2 naming the manufacturing mill, ISO 9001, ISO 19443, NCAGE code CNMQ5
- Confidentiality
- non-disclosure agreement on request, exclusive manufacturing rights by framework contract
Fields of application
Nirotec components sit in piping systems that must handle pressure, temperature and medium reliably. We are happy to assess further applications on request.
High pressure and hydraulics
Elbows, tees and reducers for pressure lines in land and naval systems, with wall thicknesses up to 100 mm.
Steam generation
Components for steam and superheated steam lines, made from creep-resistant steels and nickel-based alloys.
Supply lines in shipping
Piping systems for ships and naval vessels, for example cooling, firefighting, ballast, fuel and hydraulic lines – made from duplex, super duplex and copper-nickel.
How a defence project runs
From first contact to delivery with complete material traceability.
- 01
First contact
With drawing or specification. On request, we conclude a non-disclosure agreement beforehand.
- 02
Feasibility and quotation
Material, availability of European raw material and manufacturing route.
- 03
Inspection plan
We agree a project-specific inspection and test plan with you.
- 04
Manufacturing and inspection
Forming, heat treatment and inspection in Unna.
- 05
Documentation and delivery
With inspection certificates and complete material traceability.
Materials from Europe
For defence projects, we use raw material from European mills only. Every batch is traceable through an inspection certificate to EN 10204 (3.1, 3.2 on request), which also names the manufacturing mill.
Austenitic stainless steels
- 316L / 1.4404
- 316Ti / 1.4571
- 321 / 1.4541
- others per specification
Duplex and super duplex
- Duplex 2205 / 1.4462
- Super-Duplex 2507 / 1.4410
Nickel-based alloys
- Alloy 625 / 2.4856
- Alloy 718 / 2.4668
- Alloy 825 / 2.4858
- Hastelloy C-22 / 2.4602
- Hastelloy C-276 / 2.4819
Creep-resistant and quenched and tempered steels
- 16Mo3 / 1.5415
- 13CrMo4-5 / 1.7335
- 10CrMo9-10 / 1.7380
- 25CrMo4 / 1.7218
- 42CrMo4 / 1.7225
- 34CrNiMo6 / 1.6582
- others per specification
Copper-nickel for maritime piping
- CuNi 90/10 / 2.0872
- CuNi 70/30 / 2.0882
Custom manufacturing, including small series
Catalogue parts rarely help in the defence sector. We manufacture to your drawing or specification: you define geometry, radii, wall thicknesses, material and scope of inspection.
Press shop in Unna
- Pressesup to 1,500 t, cold and hot forming up to 1,150 °C
- Dimensionsup to DN 600, wall thicknesses up to 100 mm, piece weight up to 1,000 kg
- Hydroformingfor tees and special shapes
Batch sizes without minimum quantity
- Samples and single piecesare normal business for us
- Small serieswithout the minimum lot sizes that only make sense for plant construction
- Everything in-houseforming, heat treatment, machining, pickling and blasting
Quality and certifications
Quality management to DIN EN ISO 9001:2015 and ISO 19443:2018 (quality management for the nuclear supply chain), both certified by TÜV Rheinland, plus AD 2000 and Pressure Equipment Directive 2014/68/EU. Inspection certificates to EN 10204, acceptance by customer inspectors or third parties possible.
- Inspection certificate 3.1 / 3.2 with mill
- DIN EN ISO 9001:2015
- ISO 19443:2018
- AD 2000 · PED 2014/68/EU
- NCAGE code CNMQ5
- Customer inspection and third-party acceptance
- European raw material only
More industries and projects
Nirotec supplies pipe fittings for industrial piping systems worldwide – including these industries.
Frequently asked questions about pipe fittings for the defence industry
Does the raw material really come from Europe only?
For defence projects, yes. We source exclusively from European mills, and the manufacturing mill is named in the inspection certificate of each batch. We can also offer European raw material from our stock. Every component is fully documented.
Do you also make single pieces?
Yes. We manufacture single pieces and small series without a minimum lot size.
Which dimensions and materials are possible?
Fittings up to DN 600, with wall thicknesses up to 100 mm and up to 1,000 kg piece weight – in stainless steel, duplex and super duplex, nickel-based alloys, creep-resistant and quenched and tempered steels as well as copper-nickel.
How do you handle confidential documents?
On request, we conclude a non-disclosure agreement before the handover. Only the employees working on the project have access.
What do exclusive manufacturing rights mean?
We use the tools and fixtures for your component for you only. A framework contract regulates the details.
Do you design or reverse engineer components?
No. We manufacture to your documents. We do not offer design or reverse engineering.
As of: November 2026
Send a confidential enquiry
Send us material, dimensions, quantity and the delivery date you need. For sensitive documents, we agree on confidentiality first and then receive the drawing by the agreed route.
