Incoloy 800H alloy products
Material Family / Incoloy

Incoloy 800H

Solution-annealed Incoloy 800 with enhanced high-temperature creep strength.

Introduction

§01 — General

Incoloy 800H is the controlled carbon variant of Incoloy 800 with enhanced high-temperature creep and stress-rupture properties. The solution-annealed condition with controlled grain size (ASTM 5 or coarser) delivers superior performance in ASME Section III and Section VIII pressure vessel applications above 600°C.

Cross-Reference

UNS: UNS N08810
GB/T: GB NS1102
Series: Incoloy
Density: 7.94 g/cm³
Max Temp: 1100°C
Standards: ASTM B163 · ASTM B407 · ASME SB-163 · ASME Section III/VIII

Quick Facts

UNS
N08810
GB
NS1102
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
Enhanced creep strength vs 800
Controlled carbon for carburization resistance
ASME nuclear/pressure vessel qualified
Good structural stability
Superior to 800 above 600°C

Typical Uses

§04 — Applications
ASME pressure vessels
High-temperature heat exchangers
Steam methane reformers
Ethylene cracking furnaces
Power plant superheaters

Frequently Asked Questions

Incoloy 800H FAQ

What is Incoloy 800H used for?

Incoloy 800H is a Incoloy alloy used in ASME pressure vessels, High-temperature heat exchangers, Steam methane reformers. It offers Enhanced creep strength vs 800 and Controlled carbon for carburization resistance.

What is the chemical composition of Incoloy 800H?

Incoloy 800H 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 800H available in?

Incoloy 800H 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 800H?

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

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