Chemical Plant Nickel Alloy Scrap
Source industry
Chemical plants use the most corrosion-resistant nickel alloys: Hastelloy C-276, C-22 and B-2, Inconel 600 and Incoloy 825. Scrap is released at plant rebuilds and must be cleaned of process residues before it can be sold.
Background
Why Chemical Processing Uses Nickel Alloys
Chemical plants handle acids, chlorides and oxidising media that dissolve ordinary steel. Molybdenum-rich Hastelloys and Incoloy 825 are chosen for exactly these conditions.
Scrap is released at plant rebuilds and when reactors, exchangers and scrubbers reach the end of their life.
The chain
From Component to Scrap
Where the alloy served, which grades are used there, and the scrap that comes back.
Hastelloy C-276, C-22, B-2
Plate and solids at rebuilds
Hastelloy C-276, Incoloy 825, Titanium Grades 2 and 7
Tube bundles and plate
Inconel 600, nickel 200/201
Tube and plate
Incoloy 825, Ni-Resist
Pipe, pumps and valves
Hastelloy C-276, C-22, Inconel 625
Sheet linings and plate
Grades
Grades from This Industry
Open a grade for its composition, identification and standards.
| Grade | Typical use in this industry |
|---|---|
| Hastelloy C-276 | Flue-gas desulfurization scrubbers |
| Hastelloy C-22 | Pharmaceutical and fine-chemical reactors |
| Hastelloy B-2 | Hydrochloric acid process equipment |
| Inconel 600 | Furnace muffles, retorts and heat-treatment fixtures |
| Incoloy 825 | Sulfuric acid pickling and processing equipment |
| Titanium Grade 7 | Chemical process equipment in reducing acids |
Standards
Standards Behind This Scrap
Process plant is built to the ASME code, so C-276, C-22, 825 and 625 plate and pipe usually arrive with dual ASTM/ASME marking: B575/SB-575 plate, B622/SB-622 seamless pipe, B619 and B626 for welded pipe and tube.
Before you sell
Things to Know
Chemical plant scrap must come with a declaration that it has been decontaminated. Residues can be hazardous and can block international shipment.
Questions
FAQ
Does chemical plant scrap need decontamination before sale?
Yes. Process residues must be removed, and many buyers and destination countries require a written declaration.
Why is chemical plant scrap often high in molybdenum?
Molybdenum is what gives nickel alloys resistance to reducing acids and chlorides, so the grades chosen for chemical service, especially the Hastelloys, carry a lot of it.
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