Nickel Alloy Supplier – Inconel, Incoloy, Monel, Hastelloy & Nickel 200/201
ASC LLP, Mumbai, supplies nickel and nickel alloys – pure nickel 200/201, Monel, Inconel, Incoloy, Hastelloy, Alloy 20 and MP35N – as seamless and welded pipe and tube, plate, sheet, bar, wire, fittings, flanges and fasteners, to ASTM / ASME specifications with EN 10204 3.1 certificates, for customers worldwide.
What are Nickel Alloys?
Nickel alloys are metals based on nickel – not steels – alloyed with copper, chromium, iron, molybdenum, tungsten or cobalt. Nickel’s stable face-centred cubic structure keeps these alloys tough from cryogenic temperatures to over 1,000 °C, and the alloying elements tailor them for a particular job: copper for seawater and hydrofluoric acid (Monel), chromium for oxidation and high-temperature strength (Inconel), molybdenum and chromium for the most aggressive acids and chlorides (Hastelloy).
Nickel Alloy Families at a Glance
| Family | Typical grades | Main alloying (nominal) | Best for |
| Pure nickel | Nickel 200 (N02200), 201 (N02201) | Ni 99%+ | Caustic soda, food and chemical handling, electronics |
| Monel | 400 (N04400), K-500 (N05500) | Ni ~65%, Cu ~30% | Seawater, marine hardware, hydrofluoric acid, pumps and valves |
| Inconel | 600, 601, 625, 718, X-750 | Ni-Cr(-Fe), Mo and Nb in 625 / 718 | High-temperature strength and oxidation; 625 for chloride corrosion; 718 for high-strength aerospace and oilfield parts |
| Incoloy | 800 / 800H / 800HT, 825 | Fe-Ni-Cr; Mo and Cu in 825 | Furnace and petrochemical heat service (800H/HT); sulphuric and phosphoric acid (825) |
| Hastelloy | C-276, C-22, C-4, B-2, B-3, X, G-30 | Ni-Mo-Cr(-W) or Ni-Mo | Severe acids, wet chlorine, chlorides; B-2/B-3 for hydrochloric acid |
| Other alloys | Alloy 20 (N08020), MP35N (R30035), Alloy 31, Alloy 330 | Fe-Ni-Cr-Mo-Cu; Ni-Co-Cr-Mo | Sulphuric acid (Alloy 20); ultra-high-strength springs, fasteners and medical parts (MP35N) |
Our Nickel Alloy Product Range
We supply every family as seamless and welded pipe and tube, plate, sheet and coil, round bar, rod and wire, butt-weld and forged fittings, flanges and fasteners (bolts, studs, nuts, washers) – from stock or to drawing.
Nickel Alloy Bars and Rods
Nickel Alloy Wire
Nickel Alloy Coiled Tubes
Nickel Alloy Product Directory – By Family & Form
Choose an alloy family and product form to see grades, chemistry, mechanical properties, sizes and specifications.
| Alloy family | Product pages |
| Inconel & Incoloy | Inconel hub · Seamless pipes · Welded pipes · Plates · Bars · Fittings · Flanges · Fasteners |
| Monel | Monel hub · Seamless pipes · Welded pipes · Plates · Bars · Fittings · Flanges · Fasteners |
| Hastelloy | Hastelloy hub · Seamless pipes · Welded pipes · Plates · Fittings · Flanges · Fasteners |
| Pure nickel (200 / 201 / 205) | Nickel 200/201 pipes · Nickel 200 plates · Nickel 201 plates · Nickel 200 fittings · Nickel 201 fittings · Nickel 205 fittings · Nickel 200 flanges · Nickel 201 flanges · Nickel 205 flanges |
| All nickel alloys by form | Seamless pipes · Welded pipes · Plates · Fittings · Flanges · Fasteners |
| Other nickel & Ni-Co alloys | MP35N bars · Alloy 20 plates · Alloy 31 bars · Alloy 330 plates |
Mechanical Properties of Common Nickel Alloys
| Grade (annealed) | UNS | Tensile strength (min) | Yield strength (min) |
| Nickel 200 | N02200 | 380 MPa (55 ksi) | 105 MPa (15 ksi) |
| Monel 400 | N04400 | 480 MPa (70 ksi) | 170 MPa (25 ksi) |
| Inconel 600 | N06600 | 550 MPa (80 ksi) | 240 MPa (35 ksi) |
| Inconel 625 (Grade 1) | N06625 | 827 MPa (120 ksi) | 414 MPa (60 ksi) |
| Incoloy 800 | N08800 | 520 MPa (75 ksi) | 205 MPa (30 ksi) |
| Incoloy 825 | N08825 | 586 MPa (85 ksi) | 241 MPa (35 ksi) |
| Hastelloy C-276 | N10276 | 690 MPa (100 ksi) | 283 MPa (41 ksi) |
| Alloy 20 | N08020 | 551 MPa (80 ksi) | 241 MPa (35 ksi) |
Typical ASTM minimums for annealed pipe and tube; exact values depend on product form, size and specification. Age-hardened grades such as Inconel 718, X-750, Monel K-500 and MP35N are much stronger – see the individual grade pages.
ASTM Specifications for Nickel Alloys by Product Form
| Product form | Pure nickel | Monel 400 | Inconel 600 / 625 | Incoloy 800 / 825 | Hastelloy C-276 |
| Seamless pipe & tube | B161, B163 | B165, B163 | B167 / B444 | B407 / B423 | B622 |
| Welded pipe | B725 | B725 | B517 / B705 | B514 / B705 | B619 |
| Plate, sheet, strip | B162 | B127 | B168 / B443 | B409 / B424 | B575 |
| Bar & rod | B160 | B164 | B166 / B446 | B408 / B425 | B574 |
| Butt-weld fittings | B366 | B366 | B366 | B366 | B366 |
| Forgings & flanges | B564 | B564 | B564 | B564 | B564 |
ASME equivalents carry the “SB” prefix (for example SB-163, SB-366, SB-564). Fasteners are supplied to ASTM F467 / F468 or customer specification.
Which Nickel Alloy Should You Choose?
- Seawater, brine, hydrofluoric acid: Monel 400 (K-500 where high strength is needed).
- Hot caustic soda, food processing: Nickel 200 (201 above about 315 °C).
- High-temperature oxidation, furnace parts: Inconel 600 / 601, Incoloy 800H / 800HT.
- Chloride pitting and crevice corrosion, offshore: Inconel 625.
- Sulphuric and phosphoric acid: Incoloy 825 or Alloy 20.
- The most aggressive mixed acids, wet chlorine: Hastelloy C-276 or C-22; hydrochloric acid: Hastelloy B-3.
- High-strength bolting and springs: Inconel 718, Monel K-500, MP35N.
Inspection, Testing & Certification
- PMI and chemical analysis on every heat
- Tensile, hardness, flattening and flaring tests as per the ASTM standard
- Hydrostatic, eddy-current or ultrasonic testing of pipe and tube
- Intergranular corrosion testing on request
- EN 10204 3.1 certificates; third-party inspection (TPI) on request
Applications of Nickel Alloys
| Industry | Typical nickel alloy uses |
| Chemical & petrochemical | Reactors, heat exchangers, acid piping, scrubbers (Hastelloy, Incoloy 825, Alloy 20) |
| Oil & gas | Sour-service tubulars, subsea fasteners, clad piping (Inconel 625 / 718, Monel K-500) |
| Marine | Seawater piping, pump shafts, valves and fasteners (Monel 400 / K-500) |
| Power & furnace | Steam-generator tubes, furnace muffles, heat-treatment fixtures (Inconel 600 / 690, Incoloy 800H) |
| Aerospace | Engine casings, rings, bolts and springs (Inconel 718, X-750, MP35N) |
| Pollution control | Flue-gas desulphurisation ducts and dampers (Hastelloy C-276, Inconel 625) |
Why Choose ASC LLP as Your Nickel Alloy Supplier?
- Every family, every form: Nickel 200/201, Monel, Inconel, Incoloy, Hastelloy, Alloy 20 and MP35N.
- Certified material: ASTM / ASME specifications with EN 10204 3.1 certificates and heat traceability.
- Matched packages: pipe, fittings, flanges and fasteners in the same grade in one order.
- Small and urgent orders: cut lengths, cut-to-size plate and stock sizes.
- Export-ready: sea-worthy packing and documentation for shipments worldwide.
Send grade, form, size and quantity to sales@amardeepsteel.com or call 022-67439130.
Frequently Asked Questions – Nickel Alloys
What are nickel alloys?
Nickel alloys are nickel-based metals alloyed with elements such as copper, chromium, iron, molybdenum, tungsten or cobalt. Main families include pure nickel 200/201, Monel, Inconel, Incoloy and Hastelloy.
Is nickel alloy the same as nickel steel?
No. Nickel alloys are nickel-based, usually with more than 30–40% nickel. Nickel steels are iron-based steels with a few percent nickel added. They have very different corrosion resistance and properties.
What is the difference between Monel, Inconel and Hastelloy?
Monel is nickel-copper and excels in seawater and hydrofluoric acid. Inconel is nickel-chromium(-iron) and is chosen for high-temperature strength and oxidation resistance. Hastelloy is nickel-molybdenum-chromium and resists the most aggressive acids and chlorides.
Which ASTM specification covers nickel alloy fittings and flanges?
Butt-weld fittings in nickel alloys are covered by ASTM B366 / ASME SB366, and forged flanges and forged fittings by ASTM B564 / ASME SB564.
Which nickel alloy is best for seawater?
Monel 400 is widely used for seawater piping, pumps and valves. For higher strength, Monel K-500 is used, and Inconel 625 is chosen where crevice and pitting resistance in warm chlorides is critical.
Do you supply small quantities of nickel alloys?
Yes. ASC LLP supplies cut lengths, cut-to-size plate and small quantities of pipe, bar, fittings, flanges and fasteners in all main nickel alloys, with full certification.
