Incoloy 800 alloy products
Material Family / Incoloy

Incoloy 800

Ni-Fe-Cr alloy for high-temperature heat exchangers and process piping in petrochemical plants.

Introduction

§01 — General

Incoloy 800 is an iron-nickel-chromium alloy with good strength and oxidation/carburization resistance at high temperatures. It is widely used in petrochemical furnace tubes, heat exchangers and process piping where temperatures range from 600°C to 1100°C. The high iron content reduces alloy cost compared to Inconel grades.

Cross-Reference

UNS: UNS N08800
GB/T: GB NS111
Series: Incoloy
Density: 7.94 g/cm³
Max Temp: 1100°C
Standards: ASTM B163 · ASTM B407 · ASTM B408 · ASME SB-407

Quick Facts

UNS
N08800
GB
NS111
Density
7.94 g/cm³
Max Service Temp
1100°C
Series
Incoloy

Available Product Forms

§02 — Forms
ForgingWireFlangeBar & RodPlate & SheetStripPipe & Tube

Key Characteristics

§03 — Features
Cost-effective vs Inconel
Good oxidation resistance to 1100°C
Carburization and nitriding resistant
Good creep-rupture strength
ASME code approved

Typical Uses

§04 — Applications
Ethylene furnace tubes
Heat exchanger bundles
Steam superheater tubing
Petrochemical process piping
Industrial furnace components

Frequently Asked Questions

Incoloy 800 FAQ

What is Incoloy 800 used for?

Incoloy 800 is a Incoloy alloy used in Ethylene furnace tubes, Heat exchanger bundles, Steam superheater tubing. It offers Cost-effective vs Inconel and Good oxidation resistance to 1100°C.

What is the chemical composition of Incoloy 800?

Incoloy 800 is a controlled-composition Incoloy alloy supplied to ASTM B163 and ASTM B407. We provide the full mill test certificate with heat-specific chemistry on request.

What forms is Incoloy 800 available in?

Incoloy 800 is regularly supplied in Forging, Wire, Flange, Bar & Rod, Plate & Sheet, Strip, Pipe & Tube. Custom forms and dimensions available on request.

What is the maximum service temperature of Incoloy 800?

Incoloy 800 is rated for service up to 1100°C. Contact our metallurgy team for specific application recommendations.

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