We are Riddhi Siddhi Impex, an ISO 9001, ISO 14001, and ISO 45001-certified Hastelloy Strips manufacturer and supplier operating from Mumbai since 2002. Our slitting lines process Hastelloy C276 and C22 strips to ASTM B575 / ASME SB-575. A supplying capacity of 400 to 500 tonnes per month and dispatch within 4 to 5 days keeps chemical plants and fabrication shops moving through shutdowns and new builds alike. We also provide EN 10204 Type 3.1 / 3.2 mill test certificates on request.
Hastelloy strips are narrow, flat-rolled lengths of nickel-molybdenum-chromium alloy, slit from a wider source coil and rewound for press feeding, gasket winding, or bellows forming. Molybdenum defends the metal in reducing acids such as hydrochloric and dilute sulphuric, while chromium takes over in oxidising media, and a tungsten addition sharpens resistance to pitting and crevice attack. Low carbon keeps weld heat-affected zones free of grain-boundary precipitation, so welded strip components resist corrosion as well as the parent metal. Chloride stress corrosion cracking, the failure mode that retires stainless strip from hot brine duty, barely touches these alloys. Buyers pay a nickel-alloy price for that performance and specify it where downtime costs more than material.
As a reliable Hastelloy strip supplier, our Mumbai and Taloja warehouses hold Hastelloy strip from 0.03 mm to 5 mm thick, cold rolled at the fine gauges and supplied annealed as the standard mill condition. Slitting happens in-house across the full 3 mm to 2000 mm width range, with slit, mill, deburred, or round edges conditioned on the same pass. Coils wind on inner diameters of 150 mm to 610 mm and outer diameters up to 1800 mm. Mill documentation follows each source coil through to the finished width, and technical data sheets are available on request.
We slit and stock the Hastelloy winding strip in 2 grades, C276 and C22. Both share the Ni-Mo-Cr-W alloy system; the balance between molybdenum and chromium decides where each one serves.
UNS N10276 strip handles shifting oxidising and reducing acids, resisting pitting and stress cracking across a wide range of process media.
View gradeChromium-rich UNS N06022 strip excels in oxidising environments, outperforming C276 against hot scrubber condensates and mixed-acid streams.
View grade3 industrial sectors widely use the Hastelloy strips that leave our slitting lines. The corrosion chemistry of the process stream decides the grade.
Spiral-wound gasket windings, bellows for expansion joints and valves, spring elements, seal diaphragms, and instrument bellows survive the acid mixtures that destroy stainless equipment. Chlorination circuits and cellulose acetate plants order the grade year after year because one alloy covers both the oxidising and reducing legs of the process. Gasket windings slit as narrow as 3 mm come off the same coils.
Flue gas desulphurisation systems concentrate chlorides and sulphuric acid condensate at the wet-dry interface. Here, the alloy is formed into bellows for FGD expansion joints, spring-energised seals for oxidising service, diaphragms for scrubber instrumentation, and gasket windings for oxidising-acid duty. C22 holds up at that wet-dry boundary because its oxidising-media resistance matches the ferric and cupric species the flue stream carries.
Sour wells push hydrogen sulphide, carbon dioxide, and hot chlorides against every downhole surface. Valve trim seals, spring-energised seal elements, and instrument bellows formed from Hastelloy Slitting Coil keep their integrity in that service, which is why corrosion-resistant alloy strip stays on the reorder list of completion equipment builders.
Documentation moves with every coil we slit. Riddhi Siddhi Impex supports its Hastelloy strip supply with three ISO certifications and heat-level traceability.
An EN 10204 Type 3.1 mill test certificate accompanies each order, traced to the original heat. Type 3.2 certification is available on request.
Our ISO 9001:2015 certification governs quality management from order review through slitting, inspection, and final dispatch.
Environmental practice across storage, processing, and scrap handling runs under our ISO 14001:2015 certification.
ISO 45001:2018 covers occupational health and safety across the warehouse floor and slitting lines.
Hastelloy is a nickel alloy, so its strips fall under HS heading 7506, with subheading 7506.20 covering plates, sheets, strips, and foil of nickel alloys. Confirm the final classification with your customs broker.
Yes, Hastelloy strips are the faster moving of our two grades and stay in ready stock at Mumbai and Taloja throughout the year. Standard dispatch takes 4 to 5 days. Urgent orders leave within 2 to 3 days.
Yes. Our lines cut widths anywhere from 3 mm to 2000 mm at ±0.1 mm, in thicknesses from 0.03 mm to 5 mm. Coil ID runs from 150 mm to 610 mm with OD up to 1800 mm, and deburred or round-edge conditioning happens on the same line.
You can buy Hastelloy strips from Riddhi Siddhi Impex in Mumbai, where we have manufactured and supplied nickel alloy strips since 2002. Call or WhatsApp our team, and a quote will reach you within 24 hours.
