Incoloy 825 Flanges is one of the most widely used high-performance alloys used across industries. Hence, we at Jay Steel Corporation, a leading Incoloy 825 flanges stockist in Mumbai offer you this comprehensive guide to Incoloy 825 flanges, their chemistry, why engineers choose them, where to source them, and Incoloy 825 flanges price.
What is Incoloy 825 and why it matters
Incoloy Alloy 825 (UNS N08825 / Werkstoff 2.4858) is a nickel-iron-chromium alloy engineered for superior corrosion resistance in both reducing and oxidizing environments. Its formulation — a high nickel base with additions of chromium, molybdenum, copper and titanium — gives it a unique balance of strength, corrosion resistance and fabricability that’s ideal for demanding process equipment and piping systems. The alloy’s composition and heat treatment produce a stable austenitic microstructure that resists many forms of corrosion that attack stainless steels.
Incoloy 825 chemical composition (quick overview)
Typical analysis ranges for Incoloy 825 include roughly: nickel ~38–46%, chromium ~19.5–23.5%, iron ~balance, molybdenum ~2.5–3.5%, copper ~1.4–3.0%, with small additions of titanium and aluminium. These elements are deliberately balanced: nickel provides resistance to chloride stress-corrosion cracking, molybdenum and copper improve resistance in reducing acids, and chromium aids oxidizing environments. For engineering and procurement, always confirm the exact composition on the mill certificate / MTC supplied with the material.
Mechanical & corrosion properties — what to expect
Incoloy 825 combines good tensile strength with excellent corrosion resistance — including general corrosion, pitting, crevice corrosion, intergranular corrosion and resistance to stress-corrosion cracking in chloride environments. It performs well in sulfuric, phosphoric, nitric and organic acid environments and is commonly used in sea water and desalination applications where localized corrosion and chloride attack are concerns. Its weldability and formability make it suitable for forged components such as ASME B16.5 Incoloy 825 flanges.
Standards — ASME B16.5 and ASTM/ASME specs
Incoloy 825 flanges are manufactured to common flange standards including ASME B16.5 (for pipe flanges and flanged fittings up to 24″ class ratings), and to material/spec standards such as ASTM/ASME SB564 / ASTM B564 for forged flanges (UNS N08825). When specifying bolt circles, pressure classes (150–2500#), face types (RF, FF, RTJ) and dimensions, reference ASME B16.5 for dimensional and pressure/temperature ratings and request the appropriate MTC and heat treatment documentation.
Typical applications for Incoloy 825 flanges
Because of their corrosion resistance and mechanical stability, Incoloy 825 flanges are widely used in:
- Chemical processing (acid/acid recovery, pickling lines)
- Oil & gas (sour service surface equipment and downstream units)
- Desalination and seawater systems
- Pollution control and flue gas desulphurization
- Nuclear fuel reprocessing and high-temperature process equipment
Engineers choose Incoloy 825 flanges when “excellent resistance to corrosion” is a procurement driver and when long service life in aggressive environments offsets the alloy cost premium.
Where to buy — Incoloy 825 flanges stockist guidance
There are many authorized stockists and manufacturers in India and globally that supply ASME B16.5 Incoloy 825 flanges — from slip-on and weld-neck to blind, socket-weld and RTJ types. Reputable Indian stockists and suppliers maintain ready inventories, issue traceable MTCs (EN 10204 3.1/3.2), and can supply NACE / sour-service certifications where required. When sourcing, prefer stockists who list UNS N08825 / 2.4858 explicitly and who can supply inspection & testing reports on demand. Examples of active stockists and manufacturers in India include (but are not limited to) suppliers listed on national B2B directories and specialized alloy distributors.
Latest 2025 price list — indicative figures (India)
Important: alloy prices fluctuate with global nickel and specialty-alloy markets, order quantity, flange type, class rating (150–2500#), size and finish. The figures below are indicative retail/stockist prices observed in 2025 listings and should be used for budgeting only — always request a formal quote from Jay Steel Corporation or your preferred stockist for firm pricing and lead times.
- Incoloy 825 (Alloy 825) — price per kg (indicative stockist listing): ~₹900–1,200 / kg (small orders / retail enquiries). Example listing shows ~₹950/kg on a B2B directory.
- Weld Neck Flange (ASME B16.5, small sizes 1/2″–4″, Class 150): expect price = base alloy cost × weight + processing/forging premium — typical unit prices can range widely (₹2,500–15,000 per flange) depending on size & class. (Request weight chart per ASME B16.5 to calculate exact cost.)
- Blind / Large diameter / High-class flanges (600#–1500#): premium increases substantially due to heavier forging and machining — get project quotes for quantities and certification needs.
If your project requires price certainty, ask Jay Steel Corporation for: required flange type & class, size & schedule, quantity, end-use certifications (NACE, MTC), and desired delivery timeline — those inputs let a supplier issue a firm 2025 quotation.
Specifying and procuring smartly (tips for engineers & procurement)
1. Always quote UNS N08825 / Incoloy® Alloy 825 / Werkstoff 2.4858 in purchase orders.
2. Reference ASME B16.5 for flange dimensions and pressure ratings and ASTM/ASME SB564 or B564 for material spec.
3. Require mill test certificates (MTC 3.1/3.2) and any NACE / sour-service certificates relevant to your service environment.
4. For aggressive chloride or mixed acid environments, validate corrosion allowances and consider corrosion-testing data or third-party examination.
Finally, you need to understand that when durability and “excellent resistance to corrosion” become non-negotiable is when you need Incoloy 825 Flanges. So, if you want to know all about the 2025 pricing and immediate availability, you need to contact us at Jay Steel Corporation a top ASME B16.5 Incoloy 825 flanges Supplier in Mumbai with your flange specifications (size, class, type, quantity) and certification needs.
1. What is the Incoloy 825 chemical composition and how does it benefit industrial flanges?
The Incoloy 825 chemical composition consists of high nickel content combined with chromium, molybdenum, copper, and iron. This alloy structure provides excellent resistance to corrosion, particularly in acidic, chloride-rich, and high-temperature environments, making it ideal for heavy-duty industrial flange applications.
2. What standards are followed for ASME B16.5 Incoloy 825 flanges?
ASME B16.5 Incoloy 825 flanges are manufactured according to ASME B16.5 dimensional and pressure-rating requirements, while the material specification typically complies with ASTM/ASME B564 for Alloy 825 (UNS N08825). Jay Steel Corporation supplies flanges that meet these international quality and safety standards.
3. Why do Incoloy 825 flanges offer excellent resistance to corrosion?
Incoloy 825 flanges deliver excellent resistance to corrosion due to their nickel-rich base, which resists chloride stress-corrosion cracking, along with molybdenum and copper that protect against reducing acids such as sulfuric and phosphoric acid. This makes them suitable for chemical, marine, and oil & gas environments.
4. How can I find a reliable Incoloy 825 flanges stockist in India?
A trusted Incoloy 825 flanges stockist should offer full material traceability, mill test certificates (MTC), compliance with ASME and ASTM standards, and consistent stock availability. Jay Steel Corporation is a dependable supplier and stockist of certified Incoloy 825 flanges for domestic and export markets.
5. What factors influence the Incoloy 825 flanges price in 2026?
The Incoloy 825 flanges price in 2026 is influenced by global nickel prices, flange size and pressure class, manufacturing method, order quantity, and certification requirements. For accurate and up-to-date pricing, Jay Steel Corporation recommends requesting a customized quotation based on project specifications. To know more about Incoloy 825 flanges price ‘Get in Touch’ with us now.
