Kanakratna Steelage Private Limited

Introduction

The Inconel 800 family (800, 800H, and 800HT) is part of the iron-nickel-chromium alloy series designed for excellent resistance to high-temperature oxidation, carburization, and corrosion. Among these, Inconel 800HT (UNS N08810/N08811) is the high-temperature version, optimized for creep and rupture strength.

Inconel 800HT Sheets are flat-rolled products made from this alloy. They are used in applications requiring structural stability at temperatures up to 1100 °C (2000 °F), particularly in petrochemical, heat-treating, power generation, and furnace equipment industries.

Chemical Composition of Inconel 800HT Sheets

 

Physical Properties Mechanical Properties Heat Treatment & Metallurgy

• Solution Annealing: Typically at 1150–1200 °C followed by rapid air or water cooling.

• Microstructure: Balanced austenitic with precipitation of γ′ (Ni₃(Al, Ti)) phase, providing strengthening.

• Stabilization: Al + Ti content prevents intergranular carbide precipitation.

Testing & Quality Control

• Mechanical Testing: Tensile, yield, hardness, impact.

• Corrosion Testing: Oxidation & carburization resistance tests.

• Non-Destructive Testing (NDT): Ultrasonic, dye penetrant, radiography.

• PMI (Positive Material Identification): To confirm UNS N08810.

• Microstructural Analysis: Grain size, γ′ precipitation.

 

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

 

Introduction

Inconel 800HT belongs to the well-known Inconel 800 series (800, 800H, 800HT), developed as nickel-iron-chromium alloys for use in high-temperature and corrosive environments.

Among them, Inconel 800HT (UNS N08810/N08811) is an enhanced grade with carefully controlled levels of carbon, aluminum, and titanium, resulting in improved creep resistance, stress-rupture strength, and oxidation resistance at elevated temperatures.

Inconel 800HT Plates are flat, rolled, and heat-treated sections of this alloy, widely used in:

• Petrochemical furnaces

• Power generation boilers

• Heat exchangers

• Nuclear steam generators

• Industrial heating equipment

 

They combine strength, structural stability, and corrosion resistance, making them an indispensable material for industries that operate under extreme conditions.

Chemical Composition of Inconel 800HT Plates

 

Physical Properties Mechanical Properties  Heat Treatment & Microstructure

• Solution Annealing Range: 1150 – 1200 °C.

• Cooling Method: Air or water quench.

• Microstructure: Stable austenitic matrix with γ′ precipitates for strengthening.

• Result: Resistance to grain boundary carbide precipitation → maintains ductility and toughness even after long service.

Testing & Quality Control

• Mechanical Tests: Tensile, yield, elongation, hardness.

• Corrosion Tests: Carburization & oxidation testing.

• Non-Destructive Testing: Radiography, ultrasonic, dye penetrant.

• PMI (Positive Material Identification): Ensures correct alloy grade.

• Microstructure Examination: Grain size, γ′ precipitation.

Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Introduction

In the modern industrial landscape, where corrosive environments, high temperatures, and aggressive chemical media pose constant challenges, the choice of material becomes critical. Inconel 825HT (UNS N08825) is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. This alloy is specifically engineered to deliver excellent corrosion resistance in both oxidizing and reducing environments, making it an ideal choice for industrial fittings.

Inconel 825HT Fittings are widely used in chemical plants, oil & gas refineries, marine systems, power plants, and pollution-control equipment. These fittings include elbows, tees, reducers, couplings, caps, stub ends, crosses, and customized shapes designed to connect, redirect, or terminate piping systems.

The "HT" designation refers to the high-temperature stabilized version of Incoloy 825, which ensures superior resistance to sensitization and intergranular corrosion.

Chemical Composition of Inconel 825HT (UNS N08825)

 

Physical Properties Mechanical Properties Heat Resistance

• Maintains mechanical strength up to 540 °C for continuous service.

• Oxidation resistance in air and combustion gases.

• Stabilized against intergranular corrosion during prolonged high-temperature exposure.

• Not recommended for long-term service above 600 °C due to risk of embrittlement.

Testing & Quality Control

• Mechanical Testing: Tensile, hardness, impact tests.

• Corrosion Testing: ASTM G28 (acid tests), Strauss test for intergranular corrosion.

• NDT (Non-Destructive Testing): Radiography, ultrasonic, dye penetrant.

• Hydrostatic Pressure Testing for leak-proof assurance.

• PMI (Positive Material Identification): XRF or spectrometry.

• Dimensional Inspection: As per ASME B16.9 / B16.11.

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Additional Information:

• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes

Introduction

Inconel 800HT Round Bar is a nickel-iron-chromium alloy product designed for high-temperature strength and corrosion resistance. It belongs to the Incoloy 800 series (800, 800H, and 800HT) developed to provide excellent performance in elevated temperature environments. Among these, Inconel 800HT (UNS N08811) is the most advanced, offering enhanced creep resistance, rupture strength, and metallurgical stability compared to its predecessors.

These round bars are widely used in heat exchangers, furnace components, petrochemical processing, nuclear power plants, and gas turbines due to their ability to retain strength and resist oxidation, carburization, and sulfidation up to 1100 °C (2012 °F).

This document provides a comprehensive 4000-word guide on Inconel 800HT Round Bars, covering its composition, properties, fabrication, industry standards, applications, supplier details, and global market outlook.

 Chemical Composition of Inconel 800HT

Typical composition (weight %):

• Nickel (Ni): 30.0 – 35.0%

• Chromium (Cr): 19.0 – 23.0%

• Iron (Fe): Balance (39.5% min)

• Carbon (C): 0.06 – 0.10%

• Aluminum (Al): 0.25 – 0.60%

• Titanium (Ti): 0.25 – 0.60%

• Manganese (Mn): ≤ 1.5%

• Copper (Cu): ≤ 0.75%

• Silicon (Si): ≤ 1.0%

• Sulfur (S): ≤ 0.015%

Mechanical Properties Physical Properties

• Density: 7.94 g/cm³

• Melting Range: 1357 – 1385 °C

• Thermal Conductivity: 11.5 W/m·K

• Electrical Resistivity: 1.02 μΩ·m

• Modulus of Elasticity: 196 GPa

• Magnetism: Non-magnetic

 Applications of Inconel 800HT Round Bars
.Petrochemical Industry
.Power Generation
.Furnace Equipment
.Chemical Processing
.Aerospace & Defense
.Marine & Offshore

Additional Information:

• Item Code: UNSN08811
• Production Capacity: IN TONS
• Delivery Time: READY STOCK
• Packaging Details: The packaging of the product is done using an effective method of packaging. It all includes- • Shrink-wrapping • Bubble wrapping • Carton boxes • Wooden crates/pallets/boxes