Navigation

Back to list page

Danyang Kaixin Alloy Material Co., Ltd.
Incoloy 800HT
Product properties:

Product Name: Incoloy 800HT Nickel Alloy

Equivalent Grades: UNS N08811 / Alloy 800HT / Incoloy 800HT / Nickel-Iron-Chromium Alloy

Material Type: Nickel-Iron-Chromium Alloy with Controlled Carbon, Aluminum and Titanium Additions

Product Forms: Welding Wire, TIG Rod, MIG Wire, Strip, Round Bar, Billet & Customized Products

Manufacturing Process: VIM + ESR (Vacuum Induction Melting & Electroslag Remelting)

Standards: ASTM B408, ASTM B409, ASTM B407, ASTM B163, AWS A5.14, ISO 18274

Certification: ISO9001:2015, ISO45001:2018, ISO14001:2015

Manufacturer: Danyang City Kaixin Alloy Material Co., Ltd.

Email: kaixinalloy@kx-alloy.com

Phone: +86 13776484780

Product Description

Incoloy 800HT is a nickel-iron-chromium alloy with excellent high-temperature strength, oxidation resistance, carburization resistance, and thermal stability. Designed for harsh environments including elevated temperatures, furnace atmospheres, petrochemical processing, and heat treatment conditions, it delivers reliable performance across chemical processing, energy, industrial furnace, and high-temperature engineering industries.

Properties & Applications

 

Incoloy 800HT Key Features

Incoloy 800HT offers exceptional resistance to high-temperature oxidation, carburization, nitridation, thermal cycling, and creep deformation, combined with superior high-temperature strength, excellent metallurgical stability, good weldability, and long-term reliability in demanding elevated-temperature environments. Designed for extreme service conditions, Incoloy 800HT provides outstanding performance in furnace equipment, petrochemical processing, heat exchangers, steam reforming systems, and high-temperature industrial applications.

 

Incoloy 800HT Product Application

Incoloy 800HT (UNS N08811 / Alloy 800HT) is a high-performance nickel-iron-chromium alloy widely used in industries requiring exceptional high-temperature strength, oxidation resistance, carburization resistance, and excellent thermal stability. Designed for harsh service environments, Nickel Alloy 800HT performs reliably under elevated temperatures, continuous heat exposure, and aggressive furnace and chemical processing conditions.

Typical Incoloy 800HT applications include:

Petrochemical Processing:Ethylene cracking furnace tubes, reformer tubes, pyrolysis equipment, process piping, heat exchangers, and high-temperature components exposed to carburizing and oxidizing atmospheres.

Chemical Processing:Chemical reactors, process vessels, high-temperature piping systems, catalyst support components, and equipment requiring long-term resistance to thermal degradation.

Power Generation:Steam superheater components, heat recovery systems, high-temperature boilers, energy conversion equipment, and thermal processing systems operating under elevated temperatures.

Industrial Furnace Equipment:Furnace components, radiant tubes, heating elements, fixtures, baskets, trays, and heat treatment equipment requiring excellent oxidation and carburization resistance.

Hydrogen & Energy Industries:Steam reforming equipment, hydrogen production systems, high-temperature process units, and components exposed to hydrogen-rich environments.

Heat Exchanger Systems:High-temperature heat exchangers, transfer tubes, condensers, and thermal equipment requiring stable mechanical properties during long-term operation.

Aerospace & Advanced Engineering:High-temperature structural components, thermal processing parts, and specialized alloy components requiring reliable performance under extreme heat conditions.

Industrial Fabrication:Welded assemblies, corrosion-resistant components, customized nickel alloy parts, and precision equipment used in high-temperature service environments.

With outstanding high-temperature strength, excellent oxidation resistance, superior carburization resistance, and long-term structural stability, Incoloy 800HT remains one of the most trusted high-temperature nickel alloys for demanding petrochemical, energy, furnace, and industrial applications worldwide.

 

Kaixin Alloy offers custom alloy compositions, sizes, dimensions, and product specifications according to customer requirements.

Incoloy 800HTComposition content
Fe:41.69%~47.79%
Ni:30%~35%
Cr:19.0%~23.0%
Mn≤1.5%
Si≤1.0%
Cu≤0.75%
AI:0.25%~0.6%
Ti:0.25%~0.6%
C:0.06%~0.1%
Vacuum induction furnace
Electroslag remelting
Product physical properties
Density

ρ=8.00 g/cm³

Melting temperature range

1350-1400 ℃

Specifications

Incoloy 800HT Product Forms & Available Sizes

 

Product Form

Available Sizes

Welding Wire

Diameter: 0.8–5.0 mm

TIG Welding Rod

Diameter: 1.6–6.4 mm

MIG Welding Wire

Diameter: 0.8–1.6 mm

Nickel Alloy Strip

Thickness: 0.05–6 mm Width: 5–350 mm

Round Bar

Diameter: 6–300 mm

Billet

Diameter: Up to 600 mm

Forged Bar

Customized Sizes

Sheet & Plate

Customized Sizes

Seamless Tube & Pipe

Customized Sizes

Wire Rod

Customized Sizes

Customized Components

Made to Customer Requirements

 

Incoloy 800HT Mechanical Properties (Typical)

 

Property

Value

Tensile Strength

≥450 MPa

Yield Strength (0.2%)

≥170 MPa

Elongation

≥30%

Hardness

≤35 HRC

Density

8.0 g/cm³

Melting Range

1357–1385°C

 

Incoloy 800HT Physical Properties

 

Property

Value

Density

8.0 g/cm³

Modulus of Elasticity

196 GPa

Thermal Conductivity

11.8 W/m·K

Electrical Resistivity

1.25 μΩ·m

Specific Heat

460 J/kg·K

Coefficient of Thermal Expansion

14.4 μm/m·°C

Magnetic Property

Non-magnetic (annealed)

 

Click to view more
Quality Control & Certification
Incoloy 800HT Product Quality Inspection & Third-Party Certification

Kaixin Alloy manufactures Incoloy 800HT (UNS N08811 / Alloy 800HT / Nickel-Iron-Chromium Alloy) in compliance with ASTM B408, ASTM B409, ASTM B407, ASTM B163, AWS A5.14, ISO 18274, and EN 10204.

Every production batch is tested for:

Chemical Composition Analysis

PMI Verification

Tensile & Yield Strength Testing

Hardness Testing

Grain Size Analysis

Non-Destructive Testing (NDT)

Final Product Inspection

We provide EN 10204 3.1 Certificates, Mill Test Certificates (MTCs), and full material traceability to ensure reliable performance for petrochemical processing, industrial furnace equipment, heat exchangers, power generation, hydrogen production, and high-temperature engineering applications.

Incoloy 800HT Production process