Pipes and steel semi-finished products for industrial plants – seamless, thick-walled, all materials
Pipes are the basis of industrial piping systems and are used in a variety of applications, including power plant construction, the chemical industry, refineries, and apparatus and plant construction. They serve as pressure-bearing components and connect individual system elements.
Properties & Delivery Program
By selecting suitable manufacturers and closely controlling material quality, we ensure a reliable basis for further processing in our forming production.
Additionally, depending on project requirements, we also offer the delivery of Pipes as an independent item within overall projects.
We supply Pipes in various designs for industrial piping systems, including:
Typical Designs:
- Seamless Pipes – for high-pressure and high-temperature applications
- Welded Pipes – for less critical applications
- Thick-walled Pipes – for special applications and as raw material for forming production
Standards & Regulations
According to EN:
- EN 10216-1 – Seamless steel pipes for pressure purposes, non-alloyed
- EN 10216-2 – Seamless steel pipes, high-temperature steels
- EN 10216-5 – Seamless stainless steel pipes
- EN 10217 – Welded steel pipes for pressure purposes
- EN 10305 – Precision steel pipes
According to ASME / ASTM:
- A/SA 106 Gr. B/C – Seamless carbon steel pipes
- A/SA 335 P11 / P22 / P91 – High-temperature alloy steel pipes
- A/SA 312 TP304 / TP316L – Seamless stainless steel pipes
- A/SA 790 – Duplex and Super Duplex Pipes
- A/SA 213 – Heat exchanger tubes
In addition to Pipes, Nirotec supplies steel semi-finished products for project-specific requirements in apparatus and mechanical engineering, as well as raw material for special productions:
Round Bar For shafts, bolts, flange turned parts, and special components.
Square Bar For constructions, brackets, and custom fabrications.
Hex Bar For screws, nuts, and turned articles.
Rings Forged or rolled rings as raw material for Flanges, sleeves, and special components.
Flat Bar For spectacle blinds, blind Flanges, and structural components.
All semi-finished products available in common material groups – non-alloyed steels, stainless steel, duplex, Super Duplex, nickel alloys.
Materials & Standards
Our Pipes are supplied from a variety of industrial materials. Depending on the application, temperature, pressure, and corrosion requirements, we provide suitable material solutions.
Further materials and project-specific material requirements upon request.
Unalloyed & low-alloy steels:
P235GH / 1.0345
P265GH / 1.0425
P355GH / 1.0566
L360 / 1.0582 / API 5L X52
L415 / 1.8972 / API 5L X60
WPB / A234 WPB / Carbon Steel
WPHY70 / A860 WPHY70
Low-temperature steels:
WPL3 / A420 WPL3
WPL6 / A420 WPL6
LF2 / A350 LF2
P355NL2
P460NL2
10Ni14
12Ni14 / 1.5637
Heat-resistant steels:
16Mo3 / 1.5415
WP11 / P11 / 1.7335 / 13CrMo4-5
WP22 / P22 / 1.7380 / 10CrMo9-10
WP91 / P91 / 1.4903 / X10CrMoVNb9-1
WP92 / P92 / 1.4901 / X10CrWMoVNb9-2
X20 / 1.4922 / X20CrMoV11-1
WB36 / 1.6368 / 15NiCuMoNb5
Austenitic stainless steels:
304 / 1.4301 / X5CrNi18-10 / V2A
304L / 1.4307 / X2CrNi18-9 / TP304L / WP304L
316L / 1.4404 / X2CrNiMo17-12-2 / TP316L / WP316L / V4A
316Ti / 1.4571 / X6CrNiMoTi17-12-2 / TP316Ti / WP316Ti
321 / 1.4541 / X6CrNiTi18-10 / TP321 / WP321
347H / 1.4912 / X7CrNiNb18-10 / TP347H / WP347H
310S / 1.4845 / X8CrNi25-21 / TP310S / WP310S
Duplex & Super Duplex
Duplex / 1.4462 / X2CrNiMoN22-5-3 / UNS S31803 / F51
Super Duplex / 1.4410 / X2CrNiMoN25-7-4 / UNS S32750 / F53
Super Duplex / 1.4501 / X2CrNiMoCuWN25-7-4 / UNS S32760 / F55
254SMO / 1.4547 / X1CrNiMoCuN20-18-7 / UNS S31254
Alloy 926 / 1.4529 / X1NiCrMoCuN25-20-7 / UNS N08926
904L / 1.4539 / X1NiCrMoCu25-20-5 / UNS N08904
Nickel alloys:
Monel 400 / 2.4360 / UNS N04400
Alloy 625 / 2.4856 / UNS N06625 / Inconel 625
Alloy 825 / 2.4858 / UNS N08825 / Incoloy 825
Alloy C-276 / 2.4819 / UNS N10276 / Hastelloy C-276
Alloy 718 / 2.4668 / UNS N07718
Alloy 800H / 1.4876H / UNS N08810
Alloy C-22 / 2.4602 / UNS N06022 / Hastelloy C-22
Copper-Nickel & Special Materials:
CuNi10Fe1.6Mn / C70600 / 90-10 CuNi
CuNi70/30 / C71500
Zirconium 702 / UNS R60702
Quality Inspection & Documentation
All Pipes and semi-finished products available with:
- Test certificates according to EN 10204 (3.1 / 3.2)
- Positive Material Identification (PMI) upon request
- Non-destructive testing (UT, ET, RT) upon request
- Hardness tests upon request
- External approvals by TÜV, Bureau Veritas, DNV, or customer inspectors
Applications & Industries
Globally in use
Nirotec supplies Pipes for demanding industrial projects worldwide – as an independent delivery item or as raw material for our forming production.
Energy and Power Plant Facilities
Nuclear Technology
Hydrogen and Energy Infrastructure
Chemical and Process Industry
Refineries and Offshore Facilities
Apparatus and Mechanical Engineering
Pipes or semi-finished products for your project?
Nirotec supplies Pipes and steel semi-finished products as an independent item or as part of a complete delivery. Please contact our sales department directly.