High Nickel Alloys Scrap Buyer and Importer
Mipra Steel buys and sells high nickel alloy scrap grade by grade: wrought Inconel, Incoloy, Hastelloy, Monel, Nimonic and Haynes alloys, and cast superalloys such as René, MAR-M, GTD and MGA. Our head office is in Khetwadi, Mumbai, with offices in Dubai and South Korea.
These alloys carry roughly 40–76% nickel, far more than ordinary steels, and often valuable additions of molybdenum, cobalt, niobium, tungsten or tantalum. That is why each lot is described by its exact grade, UNS number and form, and kept apart from other alloys.
Features of High Nickel Alloys
Corrosion Resistance
Nickel-chromium-molybdenum grades such as Inconel 625 and Hastelloy C-276 resist pitting, crevice corrosion and mixed acids that attack ordinary steels.
Strength at High Temperature
Superalloys such as Inconel 718, Nimonic 80A and cast René and GTD grades keep their strength close to their operating limit in turbine hot sections.
Oxidation Resistance
Grades such as Inconel 600 and 601, Hastelloy X and Haynes 230 and 214 form protective oxide layers in furnaces and combustion equipment.
Toughness and Stability
Nickel-base alloys keep their toughness across a wide temperature range, which suits pressure equipment, offshore and process service.
Recyclable by Grade
Identified scrap goes back to the melt, returning nickel and the alloying elements to new alloy instead of losing them in mixed scrap.
Grades and Specifications
| Grade | UNS | W.Nr. | Main product specifications |
|---|---|---|---|
| Inconel 600 | N06600 | 2.4816 | ASTM B168 (plate, sheet), B163 and B167 (tube, pipe), B166 (bar) |
| Inconel 625 | N06625 | 2.4856 | ASTM B443 (plate, sheet), B444 (pipe, tube), B446 (bar), B704 and B705 (welded tube, pipe) |
| Inconel 718 | N07718 | 2.4668 | ASTM B637 (bar, forgings), B670 (plate); AMS 5662 and 5663 (bar, forgings), AMS 5596 (sheet) |
| Incoloy 825 | N08825 | 2.4858 | ASTM B424 (plate, sheet), B423 (pipe, tube), B425 (bar), B704 and B705 (welded) |
| Hastelloy C-276 | N10276 | 2.4819 | ASTM B575 (plate, sheet), B574 (bar), B622 (seamless pipe, tube), B619 and B626 (welded) |
| Hastelloy C-22 | N06022 | 2.4602 | ASTM B575 (plate, sheet), B574 (bar), B622 (seamless pipe, tube) |
| Monel 400 | N04400 | 2.4360 | ASTM B127 (plate, sheet), B164 (bar), B165 (seamless pipe, tube) |
| Monel K-500 | N05500 | 2.4375 | ASTM B865 (bar, rod, wire, forgings) |
| Hastelloy X | N06002 | 2.4665 | ASTM B435 (plate, sheet), B572 (bar), B622 (pipe, tube); AMS 5536 (sheet) |
| Haynes 230 | N06230 | 2.4733 | ASTM B435 (plate, sheet), B572 (bar), B622 (pipe, tube) |
| Nimonic 80A | N07080 | 2.4952 | Supplied to BS aerospace (HR series) and EN specifications |
| IN-939 | Not assigned | Not assigned | Supplied to turbine OEM specifications |
Every grade has its own page with standards, composition and identification notes. See the full grade index and the standards reference.
Types of High Nickel Alloy Scrap
| Alloy system | Example grades | Typical service |
|---|---|---|
| Nickel-copper | Monel 400, Monel K-500 | Seawater, hydrofluoric acid, alkalis |
| Nickel-chromium and nickel-chromium-iron | Inconel 600, 601, 690; Nimonic 75 | Oxidation, caustic, high-purity water |
| Nickel-chromium-molybdenum | Inconel 625, Hastelloy C-276, C-22 | Pitting, crevice corrosion, mixed acids |
| Nickel-molybdenum | Hastelloy B-2 | Hydrochloric acid |
| Iron-nickel-chromium | Incoloy 825, 925 | Sulfuric and phosphoric acid, sour service |
| High-temperature solid solution | Inconel 617, Hastelloy X, Haynes 230 | Combustors, furnaces, 1,000 °C (1,830 °F) and above |
| Precipitation-hardened | Inconel 718, Nimonic 80A, Haynes 282, Monel K-500 | High strength at temperature |
| Cast and wrought superalloys | René, MAR-M, GTD, MGA, Inconel 713C, IN-939, Udimet 500 | Gas turbine blades, vanes, discs and combustors |
Equivalent Grade Names
| Grade | UNS | W.Nr. | Also traded as |
|---|---|---|---|
| Inconel 600 | N06600 | 2.4816 | Alloy 600 |
| Inconel 625 | N06625 | 2.4856 | Alloy 625 |
| Inconel 718 | N07718 | 2.4668 | Alloy 718 |
| Incoloy 825 | N08825 | 2.4858 | Inconel 825, Alloy 825 |
| Hastelloy C-276 | N10276 | 2.4819 | Hastelloy C276, Alloy C-276 |
| Hastelloy C-22 | N06022 | 2.4602 | Hastelloy C22, Alloy 22 |
| Monel 400 | N04400 | 2.4360 | Alloy 400 |
| Monel K-500 | N05500 | 2.4375 | Monel 500, Monel K500, Alloy K-500 |
| Hastelloy X | N06002 | 2.4665 | Alloy X, Hastelloy XR (related grade) |
| Haynes 230 | N06230 | 2.4733 | Alloy 230 |
| Nimonic 80A | N07080 | 2.4952 | Nimonic 80, Alloy 80A |
| IN-939 | Not assigned | Not assigned | Inconel 939, Alloy 939, IN-939 low Zr |
Chemical Composition
Nominal weight per cent for the grades seen most often in scrap. Specification ranges vary by product form and standard.
| Grade | Ni | Cu | Fe | Cr | Co | Mo | W | Nb | Ti | Al | Ta | Mn |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 76 | – | 8 | 15.5 | – | – | – | – | – | – | – | 0.5 |
| Inconel 625 | 61.9 | – | 4 | 21.5 | – | 9 | – | 3.6 | – | – | – | – |
| Inconel 718 | 53 | – | 18.5 | 19 | – | 3.1 | – | 5.1 | 0.9 | 0.5 | – | – |
| Incoloy 825 | 42 | 2.3 | 30.4 | 21.5 | – | 3 | – | – | 0.9 | – | – | – |
| Hastelloy C-276 | 58.3 | – | 5.5 | 15.5 | 1 | 16 | 3.8 | – | – | – | – | – |
| Hastelloy C-22 | 58 | – | 3 | 22 | 1 | 13 | 3 | – | – | – | – | – |
| Monel 400 | 66 | 31.5 | 1.5 | – | – | – | – | – | – | – | – | 1 |
| Monel K-500 | 64.9 | 30 | 1 | – | – | – | – | – | 0.6 | 2.7 | – | 0.8 |
| Hastelloy X | 48.4 | – | 18.5 | 22 | 1.5 | 9 | 0.6 | – | – | – | – | – |
| Haynes 230 | 58.7 | – | 1.5 | 22 | 1 | 2 | 14 | – | – | 0.3 | – | 0.5 |
| Nimonic 80A | 76.1 | – | 0.75 | 19.5 | – | – | – | – | 2.3 | 1.4 | – | – |
| IN-939 | 48.6 | – | – | 22.4 | 19 | – | 2 | 1 | 3.7 | 1.9 | 1.4 | – |
Nominal weight per cent. Specification ranges vary by product form and standard.
Every Family at a Glance
| Family | Grades | Nickel | Key alloying elements | HS heading |
|---|---|---|---|---|
| Inconel scrap | 9 | 42–76% | Cr, Co, Mo, Al | 7503.00 |
| Incoloy scrap | 2 | 42–44% | Cr, Mo, Cu, Ti | 7503.00 |
| Hastelloy scrap | 4 | 48–70% | Mo, Cr, W | 7503.00 |
| Monel scrap | 2 | 65–66% | Cu, Al | 7503.00 |
| Haynes alloy scrap | 3 | 57–77% | Cr, W, Co, Mo | 7503.00 |
| Nimonic scrap | 3 | 51–77% | Cr, Co, Mo, Ti | 7503.00 |
| René alloy scrap | 6 | 59–66% | Co, Cr, W, Ta | 7503.00 |
| MAR-M alloy scrap | 3 | 10–60% | Co, Cr, W, Al | 7503.00 |
| GTD alloy scrap | 4 | 51–61% | Cr, Co, Ti, W | 7503.00 |
| MGA superalloy scrap | 3 | 48–59% | Cr, Co, W, Ta | 7503.00 |
| PWA single-crystal alloy scrap | 2 | 60–60% | Cr, Co, Ta, W | 7503.00 |
| Cobalt alloy scrap | 2 | 0–10% | Co, Cr, W, Mo | 8105.30 |
| Duplex and 254 SMO stainless scrap | 5 | 6–38% | Cr, Mo | 7204.21 |
| Ni-Resist scrap | 3 | 16–35% | Cu, Cr, Si | 7204.10 |
| Titanium scrap | 5 | 0% | Ti, Al, V | 8108.30 |
Countries We Serve
We work with buyers and suppliers in these countries. Open a country for the industries that generate the scrap, the grades seen there and the documents that travel with a lot.
Industrial Applications
- Aerospace: Aerospace generates some of the highest-value nickel alloy scrap: Inconel 718 turnings from disc and shaft machining, superalloy revert from turbine blades and vanes, and Hastelloy X and Haynes sheet from combustors.
- Power generation: Power plants generate nickel alloy scrap at scheduled gas turbine outages, when buckets, nozzles, combustion liners and transition pieces are replaced.
- Oil and gas: Oil and gas is the largest source of corrosion-resistant nickel alloy scrap: Inconel 625 clad and solid pipe, Incoloy 825 tubulars, Inconel 718 and 925 downhole parts, Monel K-500 tools and duplex piping.
- Chemical processing: Chemical plants use the most corrosion-resistant nickel alloys: Hastelloy C-276, C-22 and B-2, Inconel 600 and Incoloy 825.
- Marine and shipbuilding: Ships and offshore vessels use Monel 400 and K-500, super duplex, 254 SMO and Ni-Resist for seawater systems, shafts and pumps.
- Desalination: Desalination plants use 254 SMO, super duplex and titanium for seawater intake, high-pressure reverse-osmosis piping and evaporator tubing.
- Nuclear: Nuclear plants use Inconel 690, Inconel 600 and Inconel 718 for steam generator tubing, reactor internals and springs.
- Heat treatment and furnaces: Furnaces and heat-treatment lines use Inconel 600 and 601, Haynes 214 and 230, Hastelloy X and Nimonic 75 for muffles, retorts, radiant tubes, baskets and fixtures.
What Decides Its Value
Contained nickel and payable elements set the starting point; grade certainty, form, cleanliness, documentation and lot size adjust it. Read what decides the value of nickel alloy scrap. We don’t publish price lists, because a single number would be wrong for most lots.
To sell or source a lot, send us an enquiry with the grade, form, quantity and location. We review incoming enquiries and respond with relevant next steps.
FAQ
What counts as high nickel alloy scrap?
Scrap from alloys in which nickel is the base metal or a major addition, commonly 30% nickel or more. That covers Inconel, Incoloy, Hastelloy, Monel, Nimonic, Haynes and nickel-base superalloys such as René, MAR-M, GTD and MGA.
Why are high nickel alloys recycled rather than discarded?
Because the scrap carries nickel and often molybdenum, cobalt, niobium, tungsten or tantalum. Remelting identified scrap returns those elements to new alloy, which is why each grade is kept and sold separately.
Which high nickel alloy grades does Mipra Steel deal in?
Inconel 600, 601, 617, 625, 690, 706, 713, 718, 825, 925 and 939; Monel 400 and K-500; Hastelloy B-2, C-276, C-22 and X; Haynes 214, 230 and 282; Nimonic 75, 80A and C-263; and cast superalloys including René, MAR-M, GTD, MGA and Udimet 500.
How is high nickel alloy scrap valued?
From its contained nickel and payable elements, adjusted for grade certainty, form, cleanliness, documentation and lot size. No price is published here, because a single figure would be wrong for most lots.
How do I offer or request a lot?
Send the grade, form, approximate weight, location and photographs through the enquiry form or on WhatsApp. We review incoming enquiries and respond with relevant next steps.