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Nickel Alloys

Stockist, importer and exporter of Inconel, Monel, Hastelloy, Incoloy and Nimonic in bar, sheet, plate, pipe, tube, flange, fitting and forged-ring form — ASTM B / ASME SB standards with 3.1 / 3.2 MTC.

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Overview

What are nickel alloys?

Nickel alloys are corrosion- and heat-resistant alloys with nickel as the base element, used where stainless steel fails — in hot acids, chlorides, sour gas and service temperatures up to 1200 °C. The main families are Inconel (Ni-Cr, UNS N06600 / N06625 / N07718), Monel (Ni-Cu, UNS N04400 / N05500), Hastelloy (Ni-Mo-Cr, UNS N10276 / N06022) and Incoloy (Ni-Fe-Cr, UNS N08800 / N08825).

Steelco Metal & Alloys holds ready stock of nickel alloys in Mumbai across round bar, sheet, plate, coil, seamless and welded pipe, tube, buttweld fittings, forged flanges and rolled rings, sourced from VDM Metals, Special Metals, Sandvik and approved Indian and Japanese producers. Every dispatch leaves our Mumbai warehouse with an EN 10204 3.1 mill test certificate (3.2 with TUV, SGS, BV, Lloyd's or IRS witness on request), PMI verification and full heat-number traceability.

Grades Stocked

Nickel alloy grades we stock.

Each grade below is held in ready stock in Mumbai. Open a grade for its chemical composition, mechanical properties, international equivalents and stocked size range.

INInconel 600N06600 INInconel 601N06601 INInconel 625N06625 INInconel 718N07718 ICIncoloy 800 / 800H / 800HTN08800 / N08810 INInconel X-750N07750 MOMonel 400N04400 MOMonel R-405N04405 MOMonel K-500N05500 HAHastelloy C276N10276 HAHastelloy C22N06022 HAHastelloy B2 / B3N10665 / N10675 HAHastelloy XN06002

What We Stock

Nickel Alloys we hold in ready stock.

Round & hex bar

Ø 3 mm – Ø 350 mm, hot-rolled, cold-drawn, peeled, ground and forged to ASTM B446 / B164 / B574.

Sheet, plate & coil

0.5 mm – 80 mm thick, up to 2000 mm wide, hot- and cold-rolled to ASTM B443 / B168 / B127.

Pipe & tube

1/8" – 24" NB seamless and welded, heat-exchanger and instrumentation tube to ASTM B444 / B163 / B622.

Flanges

ASTM B564 forged flanges 1/2" – 36", Class 150 – 2500, WNRF, SORF, blind, LJ and orifice.

Buttweld & forged fittings

ASME B16.9 elbows, tees, reducers and caps; ASME B16.11 socket-weld and threaded fittings.

Rings, discs & fasteners

Seamless rolled rings to Ø 3000 mm, tube sheets, discs, studs, nuts and washers.

Need the weight for these sizes?

Use our free metal weight calculator — bars, sheets, plates, pipes and sections.

Weight Calculator

Product Forms

Our nickel alloy range

Ready stock across every mainstream form — dispatched with mill test certificates and full traceability from our Mumbai warehouse.

Round Bar

Ø 3 – 350 mm, forged, peeled and centreless ground.

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Sheet & Plate

0.5 – 80 mm, hot- and cold-rolled, pickled or 2B.

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Pipe & Fittings

Seamless and welded 1/8" – 24" NB with B16.9 fittings.

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Tube

Heat-exchanger, condenser and instrumentation tube.

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Flanges

ASTM B564 forged, Class 150 – 2500 / PN 6 – PN 100.

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Forged Rings

Seamless rolled rings Ø 100 – 3000 mm.

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Fasteners

Studs, bolts, nuts and washers in matching grades.

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Welding Consumables

ERNiCrMo-3, ERNiCu-7, ENiCrFe-3 filler and electrodes.

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Specification

Nickel Alloys specifications.

Standards, sizes, thickness and condition we routinely supply across every product form.

Product	Size Range	Thickness / Wall	Finish / Condition	Standards
Round Bar	3 mm – 350 mm	—	Black, peeled, ground, polished	ASTM B446 / B164 / B574 / B637
Sheet	1000 – 2000 mm wide	0.5 – 6 mm	2B, BA, No.4, cold-rolled	ASTM B168 / B127 / B575
Plate	1000 – 2500 mm wide	6 – 80 mm	Hot-rolled, annealed & pickled	ASTM B168 / B443 / B575
Seamless Pipe	1/8" – 12" NB	Sch 10S – XXS	Annealed & pickled	ASTM B444 / B161 / B622
Welded Pipe	1/2" – 24" NB	Sch 5S – Sch 80S	Annealed & pickled	ASTM B705 / B725 / B619
Tube	Ø 3 – 273 mm	0.5 – 20 mm	Bright annealed / pickled	ASTM B163 / B167 / B622
Flanges	1/2" – 36"	Class 150 – 2500	Forged, machined, RF / RTJ	ASTM B564 / ASME B16.5 / B16.47
Forged Rings	Ø 100 – 3000 mm	Up to 300 mm	Rough turned / proof machined	ASTM B564 / AMS 5666

Note: Other sizes, thicknesses and custom dimensions available on request.

Applications

Where nickel alloys are used.

Oil & Gas / Sour Service

Wellhead components, downhole tools and sour-gas trim — Inconel 625, 718 and Monel K-500 to NACE MR0175.

Chemical & Petrochemical

Reactors, heat exchangers and acid-handling kit in Hastelloy C276, C22 and B3.

Power & Nuclear

Steam generator tubing, superheater supports and containment hardware in Inconel 600, 690 and 800H.

Marine & Desalination

Seawater pumps, valve trim and shafting in Monel 400 and K-500.

Aerospace & Defence

Turbine discs, rings and fasteners in Inconel 718 and X-750 to AMS specifications.

Pharma & Fertiliser

Urea reactors, autoclaves and pressure vessels in Incoloy 800H / 825 and Hastelloy.

FAQ

Frequently asked questions.

Answers to the questions our Mumbai desk is asked most often.

What is the difference between Inconel, Monel and Hastelloy?

All three are nickel-base alloys with different alloying strategies. Inconel is nickel-chromium, built for high-temperature oxidation resistance up to 1100 °C. Monel is nickel-copper (roughly 67% Ni, 30% Cu), built for seawater, hydrofluoric acid and marine service. Hastelloy is nickel-molybdenum-chromium, built for the most aggressive reducing and oxidising acids such as hydrochloric and sulphuric.

Which nickel alloy is best for sour service?

Inconel 625 (UNS N06625) and Inconel 718 (UNS N07718) are the standard choices for NACE MR0175 / ISO 15156 sour-service applications, with Monel K-500 used for shafting and fasteners. We supply all three with NACE-compliant heat treatment and hardness reports.

What is the price of nickel alloys in India?

Nickel alloy pricing moves with the LME nickel price, the alloy surcharge and the form. Bar and plate in Inconel 600 / 625 typically price well above stainless, while Monel 400 tracks copper as well as nickel. Send your grade, form, size and quantity and our Mumbai desk quotes the same working day with the current stock position.

Do you supply nickel alloys with third-party inspection?

Yes. EN 10204 3.1 mill test certificates are standard on every dispatch, and 3.2 certificates with TUV, SGS, BV, Lloyd's, IRS or IBR witness are arranged on request, along with PMI, dye-penetrant and ultrasonic testing.

Certified Quality

Every dispatch is traceable, tested and certified.

Material is supplied with EN 10204 3.1 (3.2 on request) mill test certificates, PMI and spectro verification, and is open to third-party inspection by TUV, SGS, BV, Lloyd’s and IRS from our Mumbai warehouse.