Inconel 800H Flanges is commonly used in high temperature application where the high temperature is required, This nickel-based alloy flanges is specifically made to have better creep strength and stress rupture than Inconel 800 Flanges. Inconel 800, 800H and 800HT are basically the same alloy; the only difference which they have is their different carbon content in the material. Controlled carbon and larger grain size are used in Inconel 800H for extended mechanical properties in hot conditions, and even tighter carbon, carbon and titanium control is used in Inconel 800HT to provide superior creep resistance in long term applications at high temperatures. Continuous exposure to temperatures exceeding 600°C is common in petrochemical plants, heat exchangers, steam reformers and furnace equipment that use ASTM B564 Inconel 800H Flanges. Amardeep Steel is a renowned manufacturer and supplier of Inconel 800H Flanges in India, providing Inconel 800H Flanges in custom sizes and international standards for various critical industrial applications with weld neck, slip-on, blind, socket weld, threaded flanges.
Table of Contents
- Specification table of Inconel 800H Flanges
- Chemical Composition of Incoloy Alloy 800H Flanges
- Mechanical Properties of Incoloy Alloy 800H Flanges
- Equivalent Standards of Incoloy Alloy 800H Flanges
- Types of Inconel 800H Flanges
- Different Material and forms of Inconel 800H Flanges
- Manufacturing Process of Incoloy 800 Flanges
- Application and Industries of Inconel 800H Flanges
- Frequently Asked Questions
Specification table of Inconel 800H Flanges
| Category | Specification Details |
|---|---|
| Material Standards | ASTM B564 / ASME SB564; ANSI, ASME, BS, DIN, and EN Flange standards |
| Common Grades | Incoloy 800, 800H, 800HT |
| Dimensional Standards | ANSI/ASME B16.5, B16.47 (Series A & B), B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Size Range | 1/2" (15 NB) to 48" (1200 NB) |
| Pressure Ratings | Class: 150#, 300#, 600#, 900#, 1500#, 2500# Metric: PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Face Types | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large/Small Male-Female (LMF/SMF), Lap-Joint Face (LJF), Tongue & Groove |
| Manufacturing Types | Forged, Threaded, Screwed, Plate |
| Available Forms | Plate Flange, Loose Plate, Weld Neck (WNRF), Blank (Blind), Hubbed Slip-on, Hubbed Threaded, Lapped Pipe End |
| Required Marking | Grade, Standard, Thickness, Heat Number (Traceability) |
Chemical Composition of Incoloy Alloy 800H Flanges
| Grade | Carbon (C) | Mn | Si | S | Cu | Iron (Fe) | Nickel (Ni) | Cr | Al | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
| 800 | max 0.10 | max 1.50 | max 1.00 | max 0.015 | max 0.75 | min 39.50 | 30.0 - 35.0 | 19.0 - 23.0 | 0.15 - 0.60 | 0.15 - 0.60 |
| 800H | 0.05 - 0.10 | max 1.50 | max 1.00 | max 0.015 | max 0.75 | min 39.50 | 30.0 - 35.0 | 19.0 - 23.0 | 0.15 - 0.60 | 0.15 - 0.60 |
| 800HT | 0.06 - 0.10 | max 1.50 | max 1.00 | max 0.015 | max 0.75 | min 39.50 | 30.0 - 35.0 | 19.0 - 23.0 | 0.15 - 0.60 | 0.15 - 0.60 |
Mechanical Properties of Incoloy Alloy 800H Flanges
| Property | Value |
|---|---|
| Density | 7.94 g/cm³ |
| Melting Point | 1385 °C (2525 °F) |
| Tensile Strength (R_m) | 75,000 Psi / 520 MPa |
| Yield Strength (0.2% Offset) | 30,000 Psi / 205 MPa |
| Elongation (A) | 30% |
Equivalent Standards of Incoloy Alloy 800H Flanges
| Grade | Werkstoff Nr. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| Incoloy 800 | 1.4876 | N08800 | NCF 800 | NA 15 | ЭИ670 | Z8NC32-21 | X10NiCrAlTi32-20 |
| Incoloy 800H | 1.4958 / 1.4876 | N08810 | NCF 800H | NA 15(H) | ЭИ670 | Z8NC33-21 | X5NiCrAlTi31-20 |
| Incoloy 800HT | 1.4859 / 1.4876 | N08811 | NCF 800HT | NA 15(HT) | ЭИ670 | - | X8NiCrAlTi32-21 |
Types of Inconel 800H Flanges
Alloy 800 Blind Flanges
.webp)
Alloy 800 BLRF Flanges (Blind Raised Face Flanges)
Alloy 800 Flat Flanges
Alloy 800 Lap-joint Flanges
Alloy 800 Nipolet Flanges
Alloy 800 Reducing Flanges
Alloy 800 SORF Flanges
Alloy 800 Spacer Ring Flanges
Alloy 800 Spectacle Flanges
.webp)
Alloy 800 SWRF Flanges (Socket Weld Raised Face Flanges)
Alloy 800 Weldo Flanges
Alloy 800 WNRF Flanges
Different Material and forms of Inconel 800H Flanges
| Product Type | Material Grade (ASTM B564) | Size Range | Face Types |
|---|---|---|---|
| Slip-On Flanges | Incoloy Alloy 800 | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Threaded Flanges | Incoloy Alloy 800H | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Weld Neck Flanges | Incoloy Alloy 800 | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Socket Weld Flanges | Incoloy Alloy 800HT | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Blind Flanges | Incoloy Alloy 800 | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Reducing Flanges | Incoloy Alloy 800H | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Lap Joint Flanges | Incoloy Alloy 800 | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Plate Flanges | Incoloy Alloy 800HT | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Orifice Flanges | Incoloy Alloy 800 | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Forged Flanges | Incoloy Alloy 800H | 1/8" - 36" | Raised Face (RF) / Flat Face (FF) |
| Ring Type Joint (RTJ) | Incoloy Alloy 800 | 1/8" - 36" | Ring Groove |
| Square Flanges | Incoloy Alloy 800HT | 1/8" - 36" | Flat Face (FF) |
Manufacturing Process of Incoloy 800 Flanges
Application and Industries of Inconel 800H Flanges
- Refineries
- Food Processing & Dairy
- Oil and Gas Industry
- Off-Shore Oil Drilling Companies
- Pharmaceutical Equipment
- Pulp & Paper Industry
- Power Generation
- Specialty Chemicals
- Sea Water Equipment
- Gas Processing
- Chemical Equipment
- Heat Exchangers
- Petrochemicals
- Pharmaceuticals
- Condensers
Frequently Asked Questions
What are Inconel 800H flanges?
Inconel 800H flanges are nickel-iron-chromium alloy flanges designed for high-temperature and high-pressure industrial applications.
What is the difference between Inconel 800H and 800HT flanges?
Inconel 800HT flanges have controlled titanium and aluminum content for better creep strength compared to Inconel 800H flanges.
Are Inconel 800H flanges suitable for high-temperature applications?
Yes, Inconel 800H flanges are widely used in high-temperature environments such as furnaces, heat exchangers, and petrochemical plants.
Do Inconel 800H flanges resist oxidation and carburization?
Yes, Inconel 800H flanges provide excellent resistance to oxidation, carburization, and corrosion at elevated temperatures.
What is the price of ASTM B564 UNS N08810 flanges?
The price depends on flange type, size, pressure class, quantity, and certification requirements.
Are Inconel 800H flanges available with EN 10204 3.1 certification?
Yes, Inconel 800H flanges are available with EN 10204 3.1 MTC and other inspection documents on request.
Request a Quote for Inconel 800H Flanges
Amardeep Steel Centre stocks a wide range of Inconel Flanges flanges ready for immediate dispatch. Whether you need standard sizes or custom-engineered flanges for critical service conditions, our team can assist with product selection, certifications, and export documentation.
