ADNOC Approved Supplier & Stockist of Nickel Alloy Seamless Pipes and Seamless Tubes
Great Steel & Metals is an ADNOC approved mill source. The approval covers nickel alloy seamless pipes and seamless tubes. For an ADNOC package, that removes the longest procurement step. The source is already qualified, so no vendor registration wait. Your enquiry moves straight to grade, NB, schedule and delivery date.
Four nickel alloy grades covered in seamless pipe and seamless tube form. Every lot despatched against a full Material Test Certificate to EN 10204 / 3.1, heat-number traceable back to the melt.
- Grades: Hastelloy C-276 (UNS N10276), Hastelloy C-22 (UNS N06022), Monel 400 (UNS N04400), Inconel 600 (UNS N06600)
- Seamless pipes: 1/2" NB to 8" NB in SCH 10S, SCH 40S and SCH 80S
- Seamless tubes: 1/4" to 1" OD in 0.89 mm, 1.25 mm, 1.65 mm and 2.11 mm wall thickness
- Certification: Material Test Certificate to EN 10204 / 3.1 with every despatch
- Standards: ASTM B622 (C-276, C-22), ASTM B165 (Monel 400), ASTM B167 (Inconel 600)
What the ADNOC Approval Covers
- Vendor pre-qualification on nickel alloy seamless pipes and tubes already cleared.
- Material Test Certificate to EN 10204 / 3.1 issued with every despatch, traceable to heat number.
- Ex-stock movement on listed grades and sizes; custom lengths and sizes produced to your line list.
- One source for both pipe and tube, so schedules and wall thicknesses stay consistent across the package.
- Third-party inspection accepted - TPI agency nominated by the buyer at the time of order.
Hastelloy C-276
UNS N10276Wet chlorine, hypochlorite, mixed acids and sour service applications
Hastelloy C-22
UNS N06022Oxidising media resistance with strong pitting and crevice protection
Monel 400
UNS N04400Seawater, brine and hydrofluoric acid line applications
Inconel 600
UNS N06600High-temperature service and chloride stress-corrosion resistance
What Your EN 10204 / 3.1 MTC Contains
- Heat number and melt origin, traceable to the marking on the pipe or tube.
- Ladle and product chemical analysis against the ASTM specification limits.
- Tensile, yield and elongation results from the actual test lot.
- Hydrostatic or non-destructive electric test result, and flattening / flaring result where required.
- Heat treatment condition, dimensions, quantity and marking details.
- Signature of the manufacturer's authorised inspection representative, independent of the production department.
Testing of Nickel Alloy Seamless Pipe
- Chemical analysis and mechanical testing
- Hydrostatic test or non-destructive electric test
- Ultrasonic and eddy current testing
- PMI — positive material identification
- Flattening and flaring test
- Intergranular corrosion test (ASTM G28 where specified)
- Dimensional and visual inspection
ADNOC Approved Nickel Alloy Pipe Stockist Supplying Across UAE and the Middle East
Applications in ADNOC Projects
- Sour gas and Hâ‚‚S service lines
- Offshore platform process piping
- Seawater intake and injection systems
- Heat exchanger and condenser bundles
- Instrumentation and impulse lines
- Sulphur recovery units
- Flue gas desulphurisation
- Acid and chemical dosing skids
- Desalination plant piping
- Refinery overhead and crude unit lines
Nickel Alloy Pipe & Tube HS Code
| HS Code | Description |
|---|---|
| 75071200 | Tubes and pipes of nickel alloys |
Working on an ADNOC package? Send your line list with grade, NB, schedule and quantity. We will confirm what moves ex-stock with the MTC format attached to the offer.
What does ADNOC approved mean for nickel alloy pipes and tubes?
Vendor is pre-qualified with ADNOC; enquiry moves straight to technical and commercial review.
Which nickel alloy grades are covered under the approval?
Hastelloy C-276, Hastelloy C-22, Monel 400 and Inconel 600, seamless pipe and tube.
What sizes and schedules move ex-stock?
Pipes 1/2" to 8" NB, SCH 10S/40S/80S; tubes 1/4" to 1" OD, standard walls.
Is EN 10204 / 3.1 certification supplied with every order?
Yes, every despatch includes a Material Test Certificate to EN 10204 / 3.1.
Which ASTM standard applies to each grade?
ASTM B622 for Hastelloy grades, B165 for Monel 400, B167 for Inconel 600.
Request a Quote on ADNOC Approved Nickel Alloy Pipes & Tubes
Hastelloy C-276, Hastelloy C-22, Monel 400 and Inconel 600 - seamless pipes and tubes with EN 10204 / 3.1 MTC.
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