Nickel & Special Alloys (Percentage Items)
Inconel, Incoloy, Monel, Hastelloy, pure nickel, Alloy 20, 254 SMO and super duplex — stocked and sourced from Vadodara, delivered all over India.
Inconel® (nickel-chromium)
Nickel-chromium alloys for very high temperatures and severe corrosion.
The standard nickel-chromium alloy: resists oxidation up to about 1,100 °C, chloride stress-corrosion cracking and caustic environments.
Composition, specs & price Inconel 601UNS N06601 · W.Nr. 2.4851An aluminium-bearing version of 600 with outstanding resistance to oxidation and scaling up to about 1,200 °C.
Composition, specs & price Inconel 617UNS N06617 · W.Nr. 2.4663A nickel-chromium-cobalt-molybdenum alloy with exceptional strength and oxidation resistance above 980 °C.
Composition, specs & price Inconel 625UNS N06625 · W.Nr. 2.4856The most widely used high-performance nickel alloy: very high strength plus excellent resistance to sea water, pitting and crevice corrosion.
Composition, specs & price Inconel 718UNS N07718 · W.Nr. 2.4668A precipitation-hardenable nickel alloy with very high strength from −250 °C to about 700 °C, and good weldability.
Composition, specs & priceIncoloy® (nickel-iron-chromium)
Nickel-iron-chromium alloys for heat exchangers, furnaces and acid service.
A nickel-iron-chromium alloy that stays strong and resists oxidation and carburisation at high temperatures.
Composition, specs & price Incoloy 800H / 800HTUNS N08810 / N08811 · W.Nr. 1.4958 / 1.4959Controlled-carbon versions of Incoloy 800 with much higher creep and rupture strength above 600 °C.
Composition, specs & price Incoloy 825UNS N08825 · W.Nr. 2.4858A nickel-iron-chromium alloy with molybdenum and copper, built for sulphuric and phosphoric acid and sour oil-and-gas service.
Composition, specs & priceMonel® (nickel-copper)
Nickel-copper alloys for sea water, marine hardware and hydrofluoric acid.
A nickel-copper alloy with excellent resistance to sea water, brine, hydrofluoric acid and alkalis.
Composition, specs & price Monel K-500UNS N05500 · W.Nr. 2.4375An age-hardenable version of Monel 400: the same corrosion resistance, with about three times the strength.
Composition, specs & priceHastelloy® (nickel-molybdenum-chromium)
The most corrosion-resistant alloys for aggressive chemical process service.
One of the most versatile corrosion-resistant alloys, handling oxidising and reducing chemicals, wet chlorine and chlorides.
Composition, specs & price Hastelloy C-22UNS N06022 · W.Nr. 2.4602A nickel-chromium-molybdenum-tungsten alloy with better resistance than C-276 to oxidising acids and localised pitting.
Composition, specs & pricePure nickel
Commercially pure nickel for caustic soda, food and electronics.
Commercially pure wrought nickel with excellent resistance to caustic soda and good thermal and electrical conductivity.
Composition, specs & price Nickel 201UNS N02201 · W.Nr. 2.4068The low-carbon version of Nickel 200, safe for service above 315 °C without embrittlement.
Composition, specs & priceSpecial stainless & other alloys
Super-austenitic, super duplex and Alloy 20 for chlorides and sulphuric acid.
A nickel-iron-chromium alloy developed for sulphuric acid, with good resistance to chloride stress-corrosion cracking.
Composition, specs & price 254 SMOUNS S31254 · W.Nr. 1.4547A 6% molybdenum super-austenitic stainless steel with excellent resistance to pitting in sea water and chloride solutions.
Composition, specs & price Super Duplex 2507UNS S32750 · W.Nr. 1.4410A super duplex stainless steel with very high strength and excellent resistance to chloride pitting and stress-corrosion cracking.
Composition, specs & priceQuick comparison
For the full chemistry of every alloy side by side, see the chemical composition chart.
| Alloy | Family | UNS | Density (g/cm³) | Tensile / Yield (MPa, min) | Best for |
|---|---|---|---|---|---|
| Inconel 600 | Inconel® | N06600 | 8.47 | 550 / 240 | Furnace muffles, retorts and trays |
| Inconel 601 | Inconel® | N06601 | 8.11 | 550 / 205 | Radiant tubes and burner parts |
| Inconel 617 | Inconel® | N06617 | 8.36 | 655 / 240 | Gas turbine combustion cans and ducting |
| Inconel 625 | Inconel® | N06625 | 8.44 | 827 / 414 | Sea-water and offshore equipment |
| Inconel 718 | Inconel® | N07718 | 8.19 | 1275 / 1034 | Aerospace engine parts |
| Incoloy 800 | Incoloy® | N08800 | 7.94 | 520 / 205 | Heat exchangers and process piping |
| Incoloy 800H / 800HT | Incoloy® | N08810 / N08811 | 7.94 | 450 / 170 | Steam reformer and ethylene furnace tubes |
| Incoloy 825 | Incoloy® | N08825 | 8.14 | 586 / 241 | Sulphuric acid pickling equipment |
| Monel 400 | Monel® | N04400 | 8.8 | 483 / 193 | Marine pump shafts and propeller shafts |
| Monel K-500 | Monel® | N05500 | 8.44 | 965 / 690 | Pump and propeller shafts |
| Hastelloy C-276 | Hastelloy® | N10276 | 8.89 | 690 / 283 | Chemical reactors and heat exchangers |
| Hastelloy C-22 | Hastelloy® | N06022 | 8.69 | 690 / 310 | Pharmaceutical and fine-chemical plants |
| Nickel 200 | Pure nickel | N02200 | 8.89 | 380 / 100 | Caustic soda evaporators |
| Nickel 201 | Pure nickel | N02201 | 8.89 | 345 / 83 | High-temperature caustic equipment |
| Alloy 20 | Special stainless & other alloys | N08020 | 8.08 | 551 / 241 | Sulphuric acid plants |
| 254 SMO | Special stainless & other alloys | S31254 | 8 | 655 / 310 | Sea-water cooling and desalination |
| Super Duplex 2507 | Special stainless & other alloys | S32750 | 7.8 | 795 / 550 | Offshore oil and gas piping |
Typical specification minimums for guidance. Inconel®, Incoloy® and Monel® are trademarks of Special Metals Corporation; Hastelloy® of Haynes International; 254 SMO® of Outokumpu. Always refer to the mill test certificate.
Nickel alloys — FAQs
What are "percentage items" in the steel trade?
In the Indian steel trade, "percentage items" usually means high-nickel and special alloys such as Inconel, Incoloy, Monel, Hastelloy, Nickel 200, Alloy 20, 254 SMO and super duplex, whose price depends heavily on their alloy (nickel and molybdenum) percentage.
Which nickel alloy should I use?
Use Inconel for high temperatures, Incoloy 800/800H for furnace and heat-exchanger tubes, Incoloy 825 for sulphuric acid, Monel 400 for sea water and hydrofluoric acid, and Hastelloy C-276 for the most aggressive chemicals such as hot chlorides and mixed acids.
How are nickel alloys priced?
Nickel alloys are priced per kg and depend on the alloy, the product form (sheet, bar, pipe), size, quantity and the nickel market on the day. Send the alloy, size and quantity for a same-day quote.
Do nickel alloys come with test certificates?
Yes. We supply nickel alloys with mill test certificates showing the UNS grade, heat number, chemistry and mechanical properties, and can arrange PMI or third-party inspection on request.
Get a quote for percentage items
Tell us the grade, size, finish and quantity. We check stock and send a per-kg rate with dispatch date — usually the same working day.
- Rates direct from Vadodara stock
- Mill test certificate with every lot
- Cut-to-size and delivery all over India