ASTM B564 Inconel 800 Flanges are high-performance nickel alloy forged flanges manufactured from UNS N08800, N08810 (800H), and N08811 (800HT) grades. These flanges offer exceptional resistance to oxidation, carburization, and high-temperature corrosion, making them ideal for petrochemical, power generation, and heat treatment industries. Common types include blind, slip-on, weld neck, lap joint, and spectacle blind flanges.
Introduction to ASTM B564 Inconel 800 Flanges
ASTM B564 Inconel 800 Flanges, also widely known as Incoloy 800 Flanges, are engineered for high-temperature structural applications requiring excellent mechanical strength and resistance to oxidation. Manufactured under ASTM B564 / ASME SB 564 specifications, these flanges are forged to deliver superior durability in aggressive environments.
We supply a comprehensive range of Inconel Flanges, including Incoloy 800H Flanges and Alloy 800HT UNS N08800 Blind Flanges, designed to meet global industrial standards. These flanges are widely used where conventional stainless steel fails due to extreme heat and chemical exposure.
Our experience in supplying SB 564 N08800 Forged Flanges ensures consistent quality, precise machining, and strict compliance with international specifications.
What is Incoloy 800 / 800H / 800HT?
Nickel Alloy 800 Flange materials belong to the iron-nickel-chromium alloy family, offering:
- Excellent strength at elevated temperatures
- Resistance to oxidation and carburization
- Stability in long-term thermal exposure
- Incoloy 800 (UNS N08800) – General-purpose high-temperature alloy
- Incoloy 800H (UNS N08810) – Higher creep rupture strength
- Incoloy 800HT (UNS N08811) – Optimized for superior creep resistance
These materials are widely used in heat exchangers, furnaces, and pressure vessels.
Table of Contents
- ➤ What is Incoloy 800 / 800H / 800HT?
- ➤ Key Features of ASTM B564 Inconel 800 Flanges
- ➤ Types of ASTM B564 Inconel 800 Flanges
- ➤ ASTM B564 Inconel 800 Flanges Specifications
- ➤ Chemical Composition of Incoloy 800 Flanges
- ➤ Mechanical Properties of Alloy 800H/800HT Flanges
- ➤ Applications of Incoloy 800 Flanges
- ➤ Why Choose Our ASTM B564 Inconel 800 Flanges?
Key Features of ASTM B564 Inconel 800 Flanges
- Excellent resistance to oxidation and scaling
- High creep rupture strength (especially 800H/800HT)
- Superior performance in carburizing environments
- Long service life under thermal stress
- Good weldability and fabrication properties
These features make Alloy 800H / 800HT Blind Flange Manufacturer solutions highly reliable for critical applications.
Types of ASTM B564 Inconel 800 Flanges
We manufacture and supply a full range of ASTM B564 Alloy 800H/T Blind / Slip On Flanges and other configurations:
➤ ASTM B564 Incoloy 800H Weld Neck Flanges
- Ideal for high-pressure applications
- Provides excellent stress distribution
- Used in critical pipelines
➤ ASTM B564 UNS N08800 Slip On Flange
- Easy installation and alignment
- Cost-effective solution for low-pressure systems
➤ Alloy 800HT UNS N08800 Blind Flanges
- Used to seal pipeline ends
- Suitable for high-temperature environments
➤ Incoloy 800Ht Spectacle Blind Flange
- Combines spacer and blind flange
- Ideal for maintenance and isolation
➤ Incoloy 800H Lap Joint Flange
- Used with stub ends
- Suitable for systems requiring frequent dismantling
➤ Inconel 800 Flanges (General Range)
- Available in threaded, socket weld, and custom designs
ASTM B564 Inconel 800 Flanges Specifications
| Specification | ASTM B564 / ASME SB 564 |
|---|---|
| Material Grade | UNS N08800, N08810, N08811 |
| Standard | ANSI B16.5, B16.47 |
| Pressure Class | 150# to 2500# |
| Size Range | ½” NB to 48” NB |
| Types | Blind, Slip-On, Weld Neck, Lap Joint, Spectacle Blind |
| Manufacturing Process | Forged |
Chemical Composition of Incoloy 800 Flanges
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 30.0 – 35.0 |
| Chromium (Cr) | 19.0 – 23.0 |
| Iron (Fe) | Balance |
| Carbon (C) | ≤ 0.10 |
| Aluminum + Titanium | 0.15 – 1.20 |
Mechanical Properties of Alloy 800H/800HT Flanges
| Property | Value |
|---|---|
| Tensile Strength | ≥ 450 MPa |
| Yield Strength | ≥ 170 MPa |
| Elongation | ≥ 30% |
| Density | 7.94 g/cm³ |
Applications of Incoloy 800 Flanges
Our Incoloy 800H Weld Neck Flange from Suppliers is widely used in:
- Petrochemical processing plants
- Heat exchangers and boilers
- Power generation plants
- Oil & gas refineries
- Furnace components and thermal processing
- Chemical industries
These industries rely on Nickel Alloy 800 Flange products due to their ability to withstand extreme conditions.
Related Inconel Steel Flanges
Why Choose Our ASTM B564 Inconel 800 Flanges?
We focus on delivering experience-backed, application-driven solutions, not just products.
- Strict adherence to ASTM & ASME standards
- In-house quality inspection and testing
- Mill test certificates (MTC) provided
- Custom sizes and machining available
- Global export capability
Our expertise in Inconel 800 Flanges ensures consistent quality across every order.
If you are looking for high-quality ASTM B564 Inconel 800 Flanges, including ASTM B564 UNS N08800 Slip On Flange and Incoloy 800Ht Spectacle Blind Flange, we provide reliable solutions tailored to industrial needs. Our wide inventory, technical expertise, and commitment to quality make us a trusted partner for critical piping applications.
Frequently Asked Questions
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