Duplex, nickel alloys, titanium
For the most demanding media and temperatures we supply pipes, fittings, flanges and bar in duplex and super duplex steels such as 1.4462 and 1.4410, super-austenitic 904L, nickel alloys including Alloy 625 and C-276, titanium and zirconium. Typical applications are seawater and brine systems, desalination, chemical and petrochemical plants, the fertilizer and energy industries, and oil and gas facilities. We quote single items as well as project quantities.
- Sourced direct from manufacturers
- No minimum order quantity
- The complete package in one quote
Specification
- Outside diameter
- 10,3 – 610 mm
- Wall thickness
- 1,24 – 33,32 mm
Material and standards
- Standards
- EN 10216-5 · ASTM A790 · ASTM B
- Material grades
- 1.4462 · 1.4410 · 1.4501 · 904L · Alloy 625 · Alloy 825 · C-276 · Titán Gr 2
Overview
- Duplex and super duplex: 1.4462 (S31803 / S32205), 1.4410 (S32750), 1.4501 (S32760).
- Super-austenitic: 904L (1.4539).
- Nickel-based alloys: e.g. Alloy 400, 600, 625, 718, 800H/HT, 825, C-276, C-22, 59.
- Other: titanium (Grade 2, 5, 7) and zirconium (702).
- Standards: EN 10216-5, EN 10217-7, ASTM A790 and the relevant ASTM B standards.
Duplex and super duplex
Duplex steels have a mixed austenitic-ferritic structure. This brings two advantages:
- higher strength, so a thinner wall is often enough;
- better resistance in chloride media to pitting, crevice corrosion and stress-corrosion cracking.
Typical uses are seawater and brine systems, desalination, chemical and petrochemical plants, and oil and gas facilities. Super duplex grades (1.4410, 1.4501) are for the most aggressive chloride service.
Nickel alloys, titanium, zirconium
Where stainless and duplex steels are no longer enough, nickel alloys, titanium or zirconium are the answer. Typical cases:
- strongly acidic or oxidising media;
- very high temperatures;
- special purity requirements.
Typical users are the chemical, fertilizer, energy and oil & gas industries and industrial furnaces.
- For corrosion: Alloy 625 and C-276 type alloys are widely used.
- For high temperature: Alloy 600 and 800H/HT are typical.
- For chloride and oxidising media: titanium gives excellent resistance.
We supply pipe, fittings, flanges and bar in these materials. Corrosion-resistant alloy OCTG is also available.
What to include in your RFQ:
- exact grade and UNS number;
- standard;
- size and product form;
- materials of the matching fittings, flanges and bolting;
- corrosion-testing and certificate requirements (e.g. 3.2).
Frequently asked questions
When does duplex pay off over 316L?
In chloride media, at higher temperature, or where strength affects the wall thickness. The designer makes the decision.
Can I order nickel alloys in small quantities?
Yes. We quote single items as well as project quantities.
Size table
| DN | NPS | OD (mm) | Wall (mm) |
|---|---|---|---|
| – | – | 10,3–13,7 | 1,24–3,02 |
| DN10 | ⅜" | 17,2 | 1,65–3,2 |
| DN15 | ½" | 21,3 | 1,65–7,47 |
| DN20 | ¾" | 26,9 | 1,65–7,82 |
| DN25 | 1" | 33,7 | 1,65–9,09 |
| DN32 | 1¼" | 42,4 | 1,65–9,7 |
| DN40 | 1½" | 48,3 | 1,65–10,15 |
| DN50 | 2" | 60,3 | 1,65–11,07 |
| DN80 | 3" | 88,9 | 2,11–15,24 |
| DN100 | 4" | 114,3 | 2,11–17,12 |
| DN125 | 5" | 139,7 | 2,77–19,05 |
| DN150 | 6" | 168,3 | 2,77–21,95 |
| DN200 | 8" | 219,1 | 2,77–23,01 |
| DN250 | 10" | 273 | 3,4–28,58 |
| DN300 | 12" | 323,9 | 3,96–33,32 |
| DN350 | 14" | 355,6 | 3,96–12,7 |
| DN400 | 16" | 406,4 | 4,19–12,7 |
| DN450 | 18" | 457 | 4,19–12,7 |
| DN500 | 20" | 508 | 4,78–12,7 |
| DN600 | 24" | 610 | 5,54–12,7 |
2 further non-DN outside diameters (73–559 mm), e.g. inch and precision sizes.
Typically available from stock. Other sizes on request.
Listed items show the typical range; we also quote custom specifications.
Send us your material list – one quote for the complete package (pipe, fittings, flanges, gaskets, bolting), sourced direct from manufacturers, no minimum order.
Request a quote