When a large power generation facility confronted material failures from thermal stress and corrosive flue gases, the search for a resilient solution led to a breakthrough: Incoloy 800H Round Bars. Engineered to withstand severe heat and aggressive chemical environments, these bars are crucial to engineers, procurement heads, fabricators, and OEMs in the chemical, oil & gas, marine, pharmaceutical, and power sectors. Aurico Alloys LLP offers trusted Incoloy 800H round bars known for their superior lifecycle performance and compliance with global standards.
Table of Contents:
Incoloy 800H (UNS N08810, ASTM B408) is a heat-resistant nickel-iron-chromium alloy with enhanced carbon content for improved creep strength. It maintains excellent oxidation resistance and mechanical stability at temperatures up to 1150°C, making it ideal for heat exchangers, furnace components, and high-temperature piping. Compared to Incoloy 800, grade 800H provides greater tensile and yield strengths, addressing the demands of high-stress environments.
Aurico Alloys LLP stocks Incoloy 800H Round Bars from 6mm up to 350mm diameter, offered in bright, ground, and polished finishes. All bars are backed by ASTM B408, ASME SB408, DIN, and NACE certifications with full mill test reports, ensuring authenticity and traceability for critical international projects.
This article details the specifications, chemical and mechanical properties, equivalent grades, industrial applications, and procurement benefits of Incoloy 800H round bars, tailored for technical decision-makers and optimized for AI-based search engines.
High-quality Incoloy 800H Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Incoloy 800H (UNS N08810) |
| Standards | ASTM B408, ASME SB408, DIN 1.4958, NACE MR0175 |
| Diameter Range | 6mm – 350mm |
| Length | Cut-to-length up to 6000mm |
| Finish | Bright, ground, polished, rough turned |
| Delivery | Global stock with complete certification and traceability |
| Price | INR 1,500 – 2,500 per kg. Indicative USD 18 – 29 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N08810 |
| Werkstoff / EN number | 1.4958 |
| EN designation | X5NiCrAlTi31-20 |
| Density | 7.94 g/cm3 |
| Melting range | 1357-1385 °C |
| Specific heat (0-100 °C) | 460 J/kg·°C |
| Magnetic permeability (200 oersted at 21 °C - annealed) | 1.014 |
| Magnetic permeability (200 oersted at 21 °C - hot-rolled) | 1.009 |
| Curie temperature | -115 °C |
| Rod and bar specification | ASTM B408 |
Identifiers and physical constants for Incoloy 800H. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP maintains extensive inventory of Incoloy 800H round bars in multiple finishes with rapid delivery capabilities, serving chemical, marine, power, pharma, and oil & gas industries internationally.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 30.0 | 35.0 |
| Chromium (Cr) | 19.0 | 23.0 |
| Iron (Fe) | 39.5 | — |
| Carbon (C) | 0.05 | 0.10 |
| Aluminium (Al) | 0.15 | 0.60 |
| Titanium (Ti) | 0.15 | 0.60 |
| Aluminium + Titanium (Al+Ti) | 0.30 | 1.20 |
| Manganese (Mn) | — | 1.5 |
| Silicon (Si) | — | 1.0 |
| Copper (Cu) | — | 0.75 |
| Sulfur (S) | — | 0.015 |
Composition limits for Incoloy 800H. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Range |
|---|---|
| Tensile Strength (MPa) | 515 – 680 |
| Yield Strength (MPa) | 205 – 345 |
| Elongation (%) | 30 – 40 |
| Hardness (HB) | ≤170 |
| Max Service Temp (°C) | Up to 1150 |
Applications & Benefits
Why this grade
Incoloy 800H shares the chemistry of 800 with two deliberate changes: carbon is controlled to 0.05–0.10% and the solution anneal is carried out at a higher temperature to give a coarser grain. Both raise creep and stress-rupture strength, which is why 800H rather than 800 is the grade for ASME pressure service above 650°C.
- Chemical: Heat exchangers, reformers, furnace parts with oxidation and corrosion resistance.
- Marine: Saltwater piping, condensers, cooling systems.
- Oil & Gas: Hydrocarbon processing equipment requiring thermal and corrosion resilience.
- Pharma: Sterilization vessels and clean room processing hardware.
- Power: Boiler tubes, superheater components exposed to high temperature and stress cycling.
- OEM & Fabrication: Certified quality for urgent supply, precision machining, and critical projects.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s Incoloy 800H Round Bars offer a superior balance of corrosion resistance and high-temperature strength, meeting ASTM, UNS, and DIN standards for demanding chemical, marine, oil & gas, pharma, and power generation environments. Is your plant equipped with the durable, certified performance of Incoloy 800H?