Inconel 800H/800HT Seamless Pipes Manufacturer, Stockists,
Supplier and Exporter in Mumbai, India.

What are Inconel 800H / 800HT Seamless Pipes?

Inconel 800H / 800HT Seamless Pipes are nickel-based alloy pipes designed to deliver exceptional resistance to oxidation, carburization, and creep deformation at elevated temperatures. These alloys belong to the Incoloy 800 family and are widely recognized for their reliability in high-temperature structural applications.

The two grades are identified as Incoloy 800H (UNS N08810) and Incoloy 800HT (UNS N08811). These alloys contain controlled carbon, aluminum, and titanium levels, which significantly improve creep rupture strength and long-term stability during continuous high-temperature exposure.

Incoloy Alloy 800H Cold Drawn Seamless Pipes are produced using a seamless manufacturing process that eliminates weld joints, resulting in better pressure handling capability and improved metallurgical uniformity. Because of their excellent mechanical properties and corrosion resistance, DIN 1.4859 Alloy 800HT Seamless Pipe products are widely used in high-temperature industrial environments.

Key Features of Inconel 800H / 800HT Seamless Pipes

•   Excellent High Temperature Strength: One of the most important characteristics of Inconel 800H Seamless Pipe is its ability to maintain strength and structural stability at temperatures exceeding 800°C.
•   Superior Oxidation Resistance: Both Incoloy 800H (UNS N08810) and Incoloy 800HT (UNS N08811) provide excellent resistance to oxidation and scaling in high-temperature environments.
•   Resistance to Carburization: These alloys perform exceptionally well in carburizing atmospheres, making them ideal for furnace components and petrochemical processing equipment.
•   Improved Creep Resistance: Alloy 800HT Seamless Pipe offers improved creep rupture strength, which ensures long-term performance in high-temperature industrial systems.
•   Excellent Fabrication Properties: Despite their high strength, these alloys offer good weldability and fabrication characteristics, making them suitable for complex piping systems.

Incoloy 800H (UNS N08810)

Incoloy 800H (UNS N08810) is a modified version of Alloy 800 with a controlled carbon content that improves creep rupture strength at elevated temperatures. It is specifically developed for structural applications operating above 600°C.

The alloy contains high nickel and chromium content, providing excellent resistance to oxidation and carburization. Because of these properties, Inconel 800H Seamless Pipe is widely used in heat treatment equipment, furnace components, and petrochemical processing plants.

Another important advantage of Incoloy 800H (UNS N08810) is its ability to maintain mechanical stability during long-term exposure to high heat environments, ensuring reliable performance in demanding industrial applications.

Incoloy 800HT (UNS N08811)

Incoloy 800HT (UNS N08811) is an advanced version of the 800 series alloy designed to provide improved creep strength and higher resistance to stress rupture.

The alloy contains tightly controlled aluminum and titanium levels, which improve grain structure and long-term mechanical stability. This makes Alloy 800HT Seamless Pipe ideal for high-temperature structural components such as furnace tubes, heat exchangers, and petrochemical reactors.

Because of its exceptional oxidation resistance and structural strength, DIN 1.4859 Alloy 800HT Seamless Pipe is widely used in industries that require materials capable of operating continuously in extreme thermal conditions.

Inconel Alloy 800H / 800HT Seamless Pipe Manufacturing Process

The production of Inconel Alloy 800H / 800HT Seamless Pipe involves advanced metallurgical techniques to ensure uniform grain structure and superior corrosion resistance.

The process begins with high-quality alloy billets that undergo hot piercing or extrusion to create hollow tubes. These tubes are then processed through multiple cold drawing stages to achieve precise dimensions and enhanced mechanical strength.

During the manufacturing of Incoloy Alloy 800H Cold Drawn Seamless Pipes, strict heat treatment procedures are applied to improve microstructure and mechanical performance. Each pipe undergoes several inspection procedures including ultrasonic testing, hydrostatic testing, and eddy current testing to verify structural integrity.

This controlled manufacturing process ensures that every pipe meets international standards and performs reliably in critical industrial environments.

ASME SB407 Incoloy 800H / 800HT Seamless Pipe Specification

Specification

Standard

Details

ASTM B407 / ASME SB407

Material Grades

Incoloy 800H, Incoloy 800HT

UNS Numbers

N08810, N08811

DIN Number

1.4859

Pipe Type

Seamless / Cold Drawn Seamless

Outer Diameter

6 mm to 914 mm

Wall Thickness

1 mm to 50 mm

Length

Single Random, Double Random, Custom Cut Length

Pipe Form

Round, Square, Rectangular, Hydraulic

End Type

Plain End, Beveled End, Threaded

Surface Finish

Annealed, Pickled, Polished

We manufacture and supply ASME SB407 Incoloy 800H/800HT Seamless Pipe in accordance with international standards to ensure consistent performance and reliability in demanding operating conditions.

Other Types of Inconel Alloy 800/800H/800HT Pipes

Inconel 800 Seamless Pipes

1.4876 Seamless Pipe Supplier
800 Inconel Seamless Pipes
Alloy 800 Seamless Pipes Supplier
Inconel 800 Seamless Pipe
Inconel Alloy 800 Seamless Pipe
Inconel 800 Seamless Pipes Exporter
UNS N08800 Seamless Pipes
Inconel® Alloy 800 Seamless Pipe

Inconel Alloy 800 Welded Pipes

UNS N08800 Welded Pipes
1.4876 Welded Pipe Supplier
800 Inconel Welded Pipes
Alloy 800 Welded Pipes Supplier
Inconel Alloy 800 Welded Pipe
Inconel 800 Welded Pipe
Inconel 800 Welded Pipes Exporter
Inconel® Alloy 800 Welded Pipe

Inconel Alloy 800 ERW Pipes

1.4876 ERW Pipe Supplier
Inconel 800 Electric Resistance Welded Pipes
Alloy 800 ERW Pipes Supplier
Inconel Alloy 800 ERW Pipe
Inconel 800 ERW Pipe
Inconel 800 ERW Pipes Exporter
UNS N08800 ERW Pipes
Inconel® Alloy 800 ERW Pipe

Inconel Alloy 800 EFW Pipes

Inconel 800Electric Fusion Welded Pipes
Inconel 800 EFW Pipe
UNS N08800 EFW Pipes
1.4876 EFW Pipe Supplier
Inconel Alloy 800 EFW Pipe
Inconel 800 EFW Pipes Exporter
Alloy 800 EFW Pipes Supplier
Inconel® Alloy 800 EFW Pipe

Chemical Composition of Incoloy 800H / 800HT

Element	Incoloy 800H	Incoloy 800HT
Nickel (Ni)	30.0 – 35.0	30.0 – 35.0
Chromium (Cr)	19.0 – 23.0	19.0 – 23.0
Iron (Fe)	Balance	Balance
Carbon (C)	0.05 – 0.10	0.06 – 0.10
Aluminum	0.15 – 0.60	0.25 – 0.60
Titanium (Ti)	0.15 – 0.60	0.25 – 0.60
Silicon (Si)	≤ 1.0	≤ 1.0
Manganese (Mn)	≤ 1.5	≤ 1.5
Sulfur (S)	≤ 0.015	≤ 0.015
Copper (Cu)	≤ 0.75	≤ 0.75

The controlled composition of aluminum and titanium enhances grain stability and improves the creep strength of Alloy 800HT Seamless Pipe during long-term high-temperature exposure.

Mechanical Properties of Inconel 800H / 800HT Seamless Pipes

Property	Incoloy 800H	Incoloy 800HT
Tensile Strength	450 MPa	450 MPa
Yield Strength	170 MPa	170 MPa
Elongation	30%	30%
Density	7.94 g/cm³	7.94 g/cm³
Melting Range	1357 – 1385°C	1357 – 1385°C

These mechanical characteristics make ASME SB407 Incoloy 800H/800HT Seamless Pipe suitable for high-pressure systems operating in extreme temperatures.

Other Types Of Inconel 800 Pipes

800 Inconel Alloy Electric Resistance Welded Pipe	Inconel 1.4876 Pipe
UNS N08800 Pipes	Inconel 800 Round Pipes Exporter
UNS N08800 Pipes Supplier in Mumbai	ASME SB 704 Alloy 800 Welded Pipe
ASTM B704 Inconel 800 Welded Pipe	800 Inconel Alloy Pipes Stockist
Inconel 800 High Pressure Pipes	Inconel® Alloy 800 Pipes
Inconel 800 Pipe Manufacturer	800 Inconel Alloy ERW Pipe
ASTM B444 800 Inconel Alloy Seamless Pipe	Inconel 800 Custom Pipes
Inconel 800 Cold Drawn Pipe	Inconel® Alloy 800 Pipe Supplier

Applications of Inconel 800H / 800HT Seamless Pipes

Because of their exceptional strength and corrosion resistance, Inconel Alloy 800H / 800HT Seamless Pipes are widely used in demanding industrial environments.

•   Petrochemical Industry: Used in ethylene cracking furnaces, hydrocarbon processing equipment, and reformer units.
•   Heat Treatment Industry: Inconel 800H Seamless Pipe is commonly used in furnace components, heating elements, and retorts.
•   Power Generation Plants: ASME SB407 Incoloy 800H/800HT Seamless Pipe is widely used in boilers, superheaters, and heat exchangers.
•   Chemical Processing Plants: DIN 1.4859 Alloy 800HT Seamless Pipe is used in reactors and chemical processing equipment due to its corrosion resistance.
•   Nuclear Industry: These alloys are also used in nuclear power plants where materials must withstand high temperatures and radiation exposure.

Why Choose Us for Inconel 800H / 800HT Seamless Pipes?

As a trusted Inconel Alloy 800H/ 800HT Seamless Pipe supplier in Mumbai, India, we ensure that every pipe is carefully inspected before delivery.

Our strengths include:

•   High-quality raw materials sourced from certified mills
•   Precision manufacturing and advanced cold drawing processes
•   Strict quality control and inspection procedures
•   Wide range of sizes and specifications
•   Reliable supply to domestic and international markets

Our expertise in supplying Incoloy Alloy 800H Cold Drawn Seamless Pipes ensures that customers receive durable products suitable for critical industrial applications.

Reliable Supplier of Incoloy 800H / 800HT Seamless Pipes

Inconel 800H / 800HT Seamless Pipes are among the most reliable high-temperature alloys used in critical industrial applications. Their excellent resistance to oxidation, carburization, and creep deformation makes them ideal for industries operating in extreme thermal environments.n Mumbai, India, we focus on delivering high-quality materials, strict inspection standards, and dependable global supply for industries requiring durable high-temperature piping systems.

Manufactured according to ASME SB407 Incoloy 800H/800HT Seamless Pipe standards, these pipes provide superior durability and structural stability. With materials such as Incoloy 800H (UNS N08810) and Incoloy 800HT (UNS N08811), industries can rely on piping systems that deliver consistent performance and long service life.

As an experienced Inconel Alloy 800H/ 800HT Seamless Pipe supplier in Mumbai, India, we provide high-quality piping solutions designed to meet the demanding requirements of modern industrial applications. Our range of DIN 1.4859 Alloy 800HT Seamless Pipe and Incoloy Alloy 800H Cold Drawn Seamless Pipes ensures reliable performance in the most challenging environments.