India's specialist supplier of Incoloy 800H/800HT for high-temperature petrochemical service and Incoloy 825 for acid and corrosion resistance. 800H provides superior creep strength for reformer tubes and ethylene cracker coils operating at 900-1100°C. 825 handles sulfuric acid, phosphoric acid, and sour gas environments. ASTM B407/B423 certified. As an established Incoloy 800 supplier, we keep these grades in ready stock at Vadodara.
Price Range: Rs 1,800 – 8,000/kg | Full Mill Traceability | Delivery across India
Get Quote: +91 99982 80619High-temperature 800-series for furnaces and corrosion-resistant 825 for chemical service
| Grade | Composition | Sizes | Schedule / Wall | Applications | Heat Treatment | Stock |
|---|---|---|---|---|---|---|
| Incoloy 800 Seamless Pipe | 32Ni-21Cr-46Fe (UNS N08800) | 1/2" to 8" NB | SCH 10S, 40S, 80S | Process heating, sheathing for electrical heating elements | Solution Annealed 980°C | Ready Stock |
| Incoloy 800H Seamless Pipe | 32Ni-21Cr-46Fe, C 0.05-0.10% (UNS N08810) | 1/2" to 8" NB | SCH 10S, 40S, 80S | Reformer pigtails, petrochemical furnaces above 600°C | Solution Annealed 1100-1175°C | Ready Stock |
| Incoloy 800HT Tube | 32Ni-21Cr-46Fe, C 0.06-0.10%, Al+Ti 0.85-1.20% (UNS N08811) | OD 12.7mm to 114.3mm | Min 1.65mm to 12.7mm | Ethylene cracker radiant coils, steam methane reformer tubes | Solution Annealed 1150°C minimum | Available |
| Incoloy 825 Seamless Pipe | 42Ni-21.5Cr-30Fe-3Mo-2Cu (UNS N08825) | 1/2" to 8" NB | SCH 10S, 40S, 80S | H2SO4 handling, phosphoric acid, pickling tanks, oil & gas sour wells | Solution Annealed 940°C | Ready Stock |
| Incoloy 825 Welded Pipe | UNS N08825 per ASTM B423/B705 | 2" to 12" NB | SCH 10S, 40S | Large-diameter acid piping, offshore sour gas gathering lines | Solution Annealed + Stress Relieved | Available |
| Incoloy 800/800H Tube (ASTM B163/B515) | N08800/N08810 | OD 9.53mm to 50.8mm | BWG 14 to 22 | Feedwater heaters, steam generators, heat exchangers | Annealed + Bright Finished | Available |
ASTM B407 / ASME SB407 (Seamless)
ASTM B514 / ASME SB514
ASTM B423 / ASME SB423
ASTM B705 / ASME SB705
ASTM B163 / B515 (HX & condenser tubes)
800 (N08800), 800H (N08810), 800HT (N08811), 825 (N08825)
1/2" to 12" NB (seamless up to 8")
800H/HT: 1100°C | 825: 540°C (corrosion limit)
Grain Size ASTM 5 or coarser (for creep)
H2SO4, HCl, H3PO4, pitting in Cl⁻
Hydrostatic, UT, PMI, IGC (A262/G28), Grain Size
Special Metals, VDM Metals, Sandvik, Nippon Yakin
Primary reformer catalyst tubes in hydrogen, ammonia, and methanol plants. Operating at 850-950°C and 25-40 bar for 100,000+ hour design life. IOCL, HPCL, Reliance, and all major fertilizer plants use 800H/HT.
Pyrolysis furnace tubes at Reliance Jamnagar, IOCL Panipat, GAIL Pata — the highest-temperature application with tube metal temperatures reaching 1050-1100°C. 800HT provides maximum creep life.
Incoloy 825 for sulfuric acid pickling lines, phosphoric acid production, mixed acid environments. Superior to SS 316L in reducing acids and resistant to pitting from chlorides.
Downhole tubing, flow lines, and process piping in H2S/CO2 containing wells. Incoloy 825 meets NACE MR0175 and provides SCC resistance where duplex is marginal.
Steam generator tubes in NPCIL Pressurised Heavy Water Reactors (PHWR). Incoloy 800 provides resistance to stress corrosion cracking in high-temperature water with caustic concentration.
Reformer pigtails, transfer lines, outlet manifolds, and radiant tube supports. Anywhere above 600°C where P91 alloy steel runs out of creep capability — 800H takes over.
Incoloy 800H/HT for reformer and cracker service is one of the most critical material specifications in petrochemicals — wrong material means catastrophic tube failure at 1000°C. We source exclusively from Special Metals, VDM, Sandvik, and Nippon Yakin with full traceability from melt through final testing.
For Incoloy 800H and 800HT, the grain size requirement is the most important quality parameter — it directly determines creep-rupture life. We verify every pipe carries grain size certification per ASTM E112, rejecting any material finer than ASTM 5. This attention to detail is what separates reliable reformer tube supply from premature failure risk.
We stock Incoloy 800/800H seamless pipes in common sizes (1/2" to 4") AND Incoloy 825 pipes for acid service projects. Many suppliers stock only one family — CMI covers both high-temperature and corrosion-resistant applications from a single source.
MTC (3.1/3.2) with: full chemical analysis (C, Al, Ti content critical for H/HT designation), mechanical properties at room AND elevated temperature, grain size measurement, IGC test (ASTM A262 Practice E for 825), hydrostatic test, and 100% UT. IBR Form III-C for code applications.
Choosing between 800, 800H, and 800HT — or between 800-series and 825 — requires understanding the actual service conditions. Our engineers help you specify the correct grade, avoiding over-specification (unnecessary cost) or under-specification (premature failure). 13+ years of supply experience to Indian petrochemical majors.
Ready stock for common sizes means immediate dispatch. For project quantities, we offer competitive pricing against any authorized Indian distributor. Standard delivery 2-5 days within India. Express overnight possible for Gujarat/Maharashtra locations. Export with full documentation to 50+ countries.
All three are nickel-iron-chromium alloys with the same base composition (32Ni-21Cr-46Fe), but they differ in carbon content and heat treatment which dramatically affects high-temperature performance. Incoloy 800 (UNS N08800) has carbon 0.10% max — general purpose grade for moderate temperatures below 600°C. Incoloy 800H (UNS N08810) has controlled carbon 0.05-0.10% and requires solution annealing above 1100°C — this gives a coarse grain structure (ASTM 5 or coarser) that provides superior creep-rupture strength above 600°C. Used for reformer pigtails and furnace components. Incoloy 800HT (UNS N08811) adds the requirement of Al+Ti 0.85-1.20% (for gamma-prime strengthening) plus controlled carbon and high-temperature anneal — providing the highest creep strength of the trio. 800HT is specified for the most demanding applications like ethylene cracker radiant coils operating at 900-1100°C.
Despite similar names, these are very different alloys targeting different problems. Incoloy 800/800H/800HT (N08800/N08810/N08811) is designed for HIGH TEMPERATURE service — oxidation resistance and creep strength at 600-1100°C. Composition: 32Ni-21Cr-46Fe. Used in furnaces, reformers, and ethylene crackers. Incoloy 825 (N08825) is designed for CORROSION RESISTANCE at ambient to moderate temperatures. Composition: 42Ni-21.5Cr-30Fe-3Mo-2Cu — the added molybdenum and copper provide exceptional resistance to sulfuric acid, phosphoric acid, and pitting in chloride environments. Used in chemical plants, oil & gas sour wells, and pickling operations. Think of it as: 800-series = heat resistance, 825 = acid resistance.
Incoloy 800H is extensively used in Indian petrochemical and fertilizer plants: Steam Methane Reformer (SMR) Tubes — hydrogen production at Reliance, IOCL, HPCL, and fertilizer plants. The tubes operate at 850-950°C under 25-40 bar pressure for 100,000+ hour design life. Ethylene Cracker Radiant Coils — at IOCL Panipat, Reliance Jamnagar, GAIL Pata — 800HT grade for tube metal temperatures reaching 1050°C. Reformer Pigtails — flexible connections from outlet headers to transfer lines at 850°C. Petrochemical Furnace Tubes — pyrolysis and thermal cracking reactors. Nuclear Applications — steam generator tubes at NPCIL PHWR (Pressurised Heavy Water Reactors).
Creative Metal Industries supplies Incoloy 800/800H seamless pipes from 1/2 inch to 8 inches NB in schedules SCH 10S through SCH 80S per ASTM B407 (seamless) and ASTM B514 (welded). Incoloy 825 pipes per ASTM B423 (seamless) and ASTM B705 (welded) in sizes up to 12 inches. Heat exchanger and steam generator tubes per ASTM B163/B515 from OD 9.53mm to 50.8mm. Reformer tubes (800HT) in custom ODs per project specifications. We also supply matching fittings (ASTM B366), flanges (ASTM B564), and bars (ASTM B408) for complete piping systems.
Incoloy 800 seamless pipe prices in India range from Rs 1,800 to Rs 5,500 per kilogram depending on grade variant (800 vs 800H vs 800HT), size, schedule, and quantity. Incoloy 825 commands a slight premium at Rs 2,200 to Rs 6,500/kg due to higher nickel and molybdenum content. Reformer tubes (800HT) in large ODs can exceed Rs 8,000/kg due to specialized manufacturing and stringent testing. Prices fluctuate with LME nickel rates. Creative Metal Industries offers competitive pricing through direct sourcing from Special Metals, VDM Metals, Sandvik, and Nippon Yakin. Project discounts available for quantities above 500 kg.
Every Incoloy pipe from CMI is supplied with: Mill Test Certificate (EN 10204 3.1/3.2) showing complete chemical analysis (important: carbon, Al, Ti content for 800H/800HT), mechanical properties (tensile, yield, elongation at room and elevated temperatures for 800H), grain size measurement (ASTM 5 or coarser for 800H/800HT — critical for creep performance), and hydrostatic test. Additional testing available: 100% UT, PMI, intergranular corrosion test (ASTM A262 for 825, ASTM G28 for 800), impact test at design minimum temperature, and stress-rupture data for reformer tube applications. IBR Form III-C available for boiler-code vessels.
Ready stock. ASTM B407/B423 certified. Reformer grade and acid-resistant grade.
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