Manufacturer and distributor to EN and ASME
We supply seamless pipe fittings and complementary piping components for industrial plants – from standard components to EN 10253 and ASME B16.9 to project-specific special solutions in special alloys and special dimensions. In-house production in Unna, complemented by targeted purchasing for complete deliveries.
Product overview
Elbows
Seamless elbows to EN 10253-2 and ASME B16.9 – Type A and Type B, design 2, 3 and 5. For standard applications and safety-critical high-pressure systems.
- 45°, 90°, 180°
- Long Radius / Short Radius
- Wall thicknesses up to 100 mm
- Special radii to drawing possible
- Non-alloy steels, austenitic stainless steels, duplex, Super Duplex, nickel alloys
Tees
Seamless tees to EN 10253-2 and ASME B16.9 – Type A and Type B. Equal and reducing tees for general and safety-critical applications.
- Equal and reducing pieces
- Manufactured by cold/hot forming and the IHU process
- Special dimensions and extended run ends possible
- Also heavy-wall up to 50 mm and more
Reducer
Concentric and eccentric Reducer to EN 10253 and ASME B16.9:
- All common dimensions and wall thicknesses
- Special versions to drawing
Flanges
Flanges to EN 1092-1 and ASME B16.5:
- Welding neck flange (Welding Neck)
- Plate flange (Slip-On)
- Blind flange
- Lap joint flange
- Special versions on request
- All pressure ratings and materials
Pipe Cap
Pipe Cap and end caps to EN 10253 and ASME B16.9:
- All common dimensions
- Special versions possible
Pipes
Pipes for industrial piping systems:
- Seamless and welded
- Project-specific dimensions and materials
- With complete documentation and inspection certificates
Special and drawing parts
Pipe fittings outside standardized standard ranges:
- Manufacture to customer drawing
- Special geometries and special dimensions
- Heavy-wall versions
- One-offs and small series
- Project-specific requirements incl. ITP and documentation
Accessories
Complementary piping components on request – for complete deliveries within a project.
- One-offs and small series
- Project-specific solutions
Material overview
Non-alloy & low-alloy steels
Austenitic stainless steels
Duplex & Super Duplex
6Mo & high-alloy austenitic steels
Nickel alloys
Testing & documentation
Quality & documentation
All products available with inspection certificates to EN 10204 (3.1 / 3.2), PMI, NDT and project-specific ITP documentation – also for safety-critical applications in nuclear engineering, offshore and the process industry.


Product or dimension not found?
Nirotec also manufactures and sources outside the standard range. Contact our sales team directly.







