We are Riddhi Siddhi Impex, an ISO 9001, ISO 14001, and ISO 45001-certified Mumbai-based Inconel Sheets & Plates supplier and stockist established in 2002. We stock seven nickel-chromium grades as cold-rolled sheet and hot-rolled plate to ASTM, ASME, and AMS standards, procured from reputed primary mills and slit to the sizes on your drawing. Ready stock, a monthly supply capacity of 400 to 500 tonnes, and dispatch within 4 to 5 days keep fabrication schedules intact.
Inconel sheets and plates are flat-rolled nickel-chromium alloy products specified for service that wears out stainless steel: furnace atmospheres, hot mixed acids, and the combined heat and stress inside gas turbines. Nickel keeps the family free of the chloride stress corrosion cracking that limits austenitic grades, while chromium builds the oxide barrier that holds back scaling at temperature. Alloying shifts the balance from grade to grade. One adds aluminium so the oxide scale grips through furnace cycling, another carries molybdenum and niobium for strength and pitting resistance, and a third gains its strength through an ageing heat treatment rather than cold work.
As one of the reliable Inconel sheet suppliers, our warehouses at Mumbai and Taloja hold all seven grades annealed, in the standard mill condition. Cold rolled sheet runs from 3.8 mm to 6 mm, hot rolled plate covers 6 mm and above, and heavier plate arrives against order. Standard widths of 1000 mm, 1219 mm, 1500 mm, and 2000 mm ship in lengths up to 6000 mm, with custom lengths on request. Material certifies to ASTM B168, B443, or B670 by grade, together with the matching ASME SB specifications, and AMS documentation follows aerospace orders. Mill paperwork lands at the warehouse before any slitting or dispatch.
7 Inconel grades make up our sheet and plate stock, and each answers a different mix of heat, corrosion, and strength.
Inconel 600 sheets pair superb oxidation resistance with total immunity to chloride stress corrosion cracking across industrial chemical processing systems.
View gradeInconel 602 CA plates anchor a tough alumina scale through extreme thermal cycling, serving high-temperature furnace applications reliably.
View gradeMolybdenum-niobium additions give Inconel 625 plates high structural strength and exceptional pitting resistance in aggressive marine service environments.
View gradeAge-hardened Inconel 718 plates deliver maximum structural strength for critical high-temperature aerospace hardware components and specialised engine fabrications.
View gradeIncoloy 800 plates resist high-temperature carburisation and oxidation, optimised for industrial processing pipelines and steam generation heat exchangers.
View gradeMolybdenum-copper additions let Incoloy 825 plates withstand severe reducing acids, localised crevice pitting, and aggressive chloride stress cracking.
View gradeHigh-chromium Incoloy 840 plates provide excellent scaling resistance up to 800 °C, ideal for industrial heating elements and vessels.
View grade3 sectors specify most of the Inconel sheets and plates leaving our warehouses, and the service environment points straight to the grade.
Engine and airframe fabricators consume Inconel 718 sheet for brackets, casings, and hot-section components that harden to full strength after forming. Inconel 625 plate backs it up in exhaust structures and ducting, where welded joints face vibration and heat together. AMS certification accompanies aerospace consignments on request.
Process plants roll Inconel 625 plate into reactor internals, column trays, and heat exchanger parts exposed to mixed acid streams. Inconel 600 sheet lines vessels and builds fixtures in caustic and chloride service, where it outlasts austenitic stainless steel by years because chloride cracking never takes hold.
Furnace shops build muffles, radiant tube shields, and burner components from Inconel 602 plate because its alumina scale survives thermal cycling that flakes ordinary chromia-forming grades. Inconel 600 sheet handles the moderate zones, forming baskets, trays, and retorts that see sustained heat without the extreme peaks.
Every dispatch travels with its paperwork. Three ISO certifications stand behind mill-heat traceability on each order.
An EN 10204 Type 3.1 mill test certificate accompanies each Inconel consignment, linked to the producing heat. Type 3.2 comes against specific order requirements.
ISO 9001:2015 governs the quality management system behind our sourcing, stocking, and dispatch routines for these nickel alloy flat products.
Environmental management runs under ISO 14001:2015, from storage and packing through cargo movement to the port.
ISO 45001:2018 keeps occupational health and safety systems current across our stores and processing lines.
Inconel classifies as a nickel alloy, which places its sheets and plates under HS heading 7506, with alloyed material under subheading 7506.20. Have your customs broker confirm the final code before shipment.
Yes. Our lines slit sheet down to whatever width your application calls for, holding ±0.1 mm, from mill widths of 1000 mm, 1219 mm, 1500 mm, and 2000 mm, and lengths slit to order up to 6000 mm.
Riddhi Siddhi Impex has supplied Inconel sheets and plates from Mumbai to Indian and export industrialists since 2002. Call or WhatsApp us and your quote arrives within 24 hours.
