Inconel 800H Fasteners are premium performance nickel-iron-chromium alloy bolting & fastening materials with specialized capabilities for severe temperature as well as high stress environment. Produced from UNS N08811 / Werkstoff Nr. 1.4958, Inconel 800H fastenings exhibit superior oxidation resistance, carburization resistance, creep rupture strength & thermal fatigue resistance. Typical fastenings include: Inconel 800H Hex Bolts, Nuts, Washers, Stud Bolts, Fully Threaded Rods, Self Drilling Screws and various Custom Fasteners utilized in high temp applications across chemical processing, petrochemical plant and power plant operations.
With extensive expertise as an Incoloy 800H Fasteners Manufacturer, we provide custom, high precision industrial fastenings that meet rigorous international standards like ASTM, ASME, DIN, ISO, EN and others.
What Are Inconel 800H Fasteners?
We produce Inconel 800H Fasteners made from Incoloy 800H, which is an upgraded version of Alloy 800 with modifications on the carbon content and grain size. With improved microstructure, the creep and stress rupture strength values for 800H are much higher over the operating range above 600°C.
Nickel alloy 800H fasteners are used in the highest-temperature environments, where the fasteners require mechanical property strength even during extended exposures to heat, oxidation and hostile environment.
Our product range includes:
- Inconel 800H Hex Bolts
- 800H Inconel Nuts and Bolts
- ASTM B408 Alloy 800H Nut Bolts
- Inconel JIS NCF 800H Stud
- UNS N08811 Washers
- Alloy 800H Fully Threaded Rods
- Inconel Alloy 800H Self Drilling Screw
- Socket Head Cap Screws
- U-Bolts
- Anchor Bolts
- Machine Screws
- Custom Engineered Fasteners
Table of Contents
- ➤ What Are Inconel 800H Fasteners?
- ➤ Key Features of Incoloy 800H Fasteners
- ➤ Inconel 800H Fasteners Specifications
- ➤ Alloy 800H Chemical Composition
- ➤ Mechanical Properties of Inconel Alloy 800H Fasteners
- ➤ Available Types of Inconel 800H Fasteners
- ➤ Industries That Use Inconel 800H Fasteners
- ➤ Available Sizes, Dimensions & Custom Manufacturing
- ➤ Why Choose Us as Your Inconel 800H Fasteners Supplier?
Key Features of Incoloy 800H Fasteners
The metallurgical characteristics of the Alloy 800H allow for robust fastener design and make the fastener ideal for some of the most vital industrial applications.
Benefits of Inconel 800H Fasteners
- High oxidation resistance at temperatures as high as 1100°C
- Good creep rupture strength
- Outstanding carburization resistance
- High tensile strength at elevated temperatures
- Excellent resistance to thermal fatigue
- Good resistance to nitriding atmospheres
- Reliable performance in cyclic heating conditions
- Long service life in aggressive environments
- Excellent weldability and fabrication characteristics
- Suitable for high-pressure process equipment
These are why Inconel 800H Nut / Bolt assembly is commonly used in power plants, refineries and chemical plants.
Inconel 800H Fasteners Specifications
| Specification | Details |
|---|---|
| Material Grade | Inconel 800H / Incoloy 800H |
| UNS Number | N08811 |
| Werkstoff Number | 1.4958 |
| Standards | ASTM, ASME, DIN, ISO, BS |
| Product Types | Bolts, Nuts, Washers, Studs, Screws, Rods |
| Thread Type | Metric, UNC, UNF, BSW |
| Diameter Range | M3 to M100 |
| Length Range | Up to 5 Meters |
| Certification | EN 10204 3.1, Mill Test Reports |
| Form | Hex, Square, Round, Socket, Custom |
Alloy 800H Chemical Composition
One of the primary reasons for the outstanding performance of Alloy 800H Fasteners is its carefully balanced chemical composition.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 30.0 – 35.0 |
| Chromium (Cr) | 19.0 – 23.0 |
| Iron (Fe) | Balance |
| Carbon (C) | 0.05 – 0.10 |
| Aluminum (Al) | 0.15 – 0.60 |
| Titanium (Ti) | 0.15 – 0.60 |
| Silicon (Si) | ≤ 1.0 |
| Manganese (Mn) | ≤ 1.5 |
| Sulfur (S) | ≤ 0.015 |
| Copper (Cu) | ≤ 0.75 |
This Alloy 800H chemical composition provides excellent resistance to oxidation and structural degradation at elevated temperatures.
Mechanical Properties of Inconel Alloy 800H Fasteners
| Property | Value |
|---|---|
| Tensile Strength | 450 MPa Min |
| Yield Strength (0.2% Offset) | 180 MPa Min |
| Elongation | 30% Min |
| Hardness | 170 HB Max |
| Density | 7.94 g/cm³ |
| Melting Range | 1357°C – 1385°C |
The superior mechanical properties ensure that Inconel Alloy 800H Washers Exporter products and fastening systems perform reliably even under severe loading conditions.
Available Types of Inconel 800H Fasteners
Inconel 800H Hex Bolts
Designed for high-temperature assemblies requiring exceptional strength and corrosion resistance.
800H Inconel Nuts and Bolts
Used extensively in pressure vessels, boilers, reactors, and heat exchangers.
UNS N08811 Washers
Provide uniform load distribution while resisting thermal expansion and oxidation.
Inconel JIS NCF 800H Stud
Ideal for flange connections, refinery piping systems, and pressure equipment.
Alloy 800H Fully Threaded Rods
Used in structural support systems, heat treatment equipment, and furnace assemblies.
Inconel Alloy 800H Self Drilling Screw
Offers reliable fastening performance for industrial fabrication and maintenance applications.
Werkstoff Nr. 1.4958 Bolts
Preferred in petrochemical and power generation sectors where elevated temperature strength is essential.
Industries That Use Inconel 800H Fasteners
Due to these high temperature characteristics, Incoloy 800H Fasteners find many industrial applications.
Major Applications
- Petrochemical Plants
- Oil & Gas Processing Units
- Power Generation Facilities
- Heat Treatment Furnaces
- Chemical Processing Plants
- Industrial Boilers
- Nuclear Power Plants
- Fertilizer Industries
- Offshore Platforms
- Pulp & Paper Industries
- Thermal Oxidizers
- Pressure Vessel Manufacturing
Equipment that has reliability issues often use ASTM B408 Alloy 800H Nut Bolts for their extreme application environment.
Available Sizes, Dimensions & Custom Manufacturing
We manufacture and supply a comprehensive range of Nickel Alloy 800H Fastener products to meet project-specific requirements.
| Parameter | Available Range |
|---|---|
| Diameter | M3 to M100 |
| Length | Up to 5000 mm |
| Stud Bolts | Half Threaded & Fully Threaded |
| Thread Forms | Metric, UNC, UNF, BSW |
| Washer Types | Plain, Spring, Lock, Custom |
| Surface Finish | Plain, Polished, Passivated |
| Standards | ASTM, ASME, DIN, ISO, BS |
| Custom Manufacturing | As Per Drawings & Specifications |
Why Choose Us as Your Inconel 800H Fasteners Supplier?
Choosing a good Inconel 800H Fasteners Supplier means keeping yourself secure and trusting equipment for years to come.
What We Offer
- Strict Quality Control Procedures
- International Material Standards Compliance
- EN 10204 3.1 Certification
- Complete Traceability Documentation
- Competitive Pricing
- Ready Stock Availability
- Fast Global Shipping
- Custom Manufacturing Capability
- Technical Support from Industry Experts
- Export Packaging for Worldwide Deliveries
As one of India's most reputable Incoloy 800H fasteners manufacturer and Alloy 800H fasteners manufacturer, we meet the world's industries.
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Frequently Asked Questions
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