Plate, Pipe & Bar | ASTM B409 / B407 / B408
Nickel-iron-chromium alloy optimized for strength and stability in high-temperature service. Stocked in Europe, China & UAE.
Updated: July 2025
Product Form Minimum Order
** Smaller trial lots available for qualified EPCs or R&D labs.
Includes Free Pre-Shipment Third-Party Inspection (PMI, Dimensional, Visual, Photos) by SGS / TÜV
We don’t just sell certified material. We re-certify it ourselves and then have an independent expert verify it. This is our definition of uncompromising integrity.
Forms: Plate / Sheet / Seamless Pipe / Bar / Forging Stock
Standards: ASTM B409, B407, B408
UNS: N08810 / N08811
W.Nr.: 1.4958 / 1.4959
The key difference is carbon content and grain size control. 800H has higher carbon (0.05–0.10%) and is heat-treated for improved creep and stress rupture strength, making it better suited for high-temperature service.
Yes. 800H is specifically designed for service up to 1000°C. It maintains structural stability and oxidation resistance at elevated temperatures, unlike standard stainless steels.
Yes, it is weldable using standard processes like GTAW and SMAW. Use filler metals such as Inco-Weld A or ERNiCr-3. Post-weld heat treatment is generally not required, but grain size control must be maintained for high-temp service.
800H offers superior mechanical strength at high temperatures, while Incoloy 825 is better for acidic and reducing environments. SS 310S can handle even higher temps but has lower long-term strength.
Yes. Incoloy 800H is listed in ASME Boiler & Pressure Vessel Code, Section VIII and approved for elevated temperature applications in petrochemical and thermal plants.
From Dubai: 5–10 working days
From China: 4–6 weeks
Custom dimensions or thick-wall seamless: 6–8 weeks
• EN 10204 3.1 MTC (3.2 with ITP)
• Third-party: SGS / TUV / Lloyd’s / BV
• Heat traceability & inspection stamps for pressure system compliance
Built for Heat – Trusted in Refineries & Petrochem Plants
Incoloy 800H delivers long-term strength and oxidation resistance at temperatures up to 1000°C. Excellent stability under thermal cycling and carburizing atmospheres.
• For thermal vessels, reformers, flue gas ducts
• Annealed & descaled or bright finish
• For high-temperature service in refineries and heat exchangers
• Hydrotested, NDT, grain-size controlled
• For bolting, forgings, valve parts, fittings
• Hot rolled / forged, annealed
**Alloys like Inconel 617, Incoloy 801, and Monel 400 are also available for specialized high-temp and corrosion-resistant applications.
