Incoloy 800 Stud Bolts Supplier & Exporter
Aurum Overseas is a trusted manufacturer and global exporter of premium nickel-iron-chromium alloy fastening solutions engineered for industrial systems operating under continuous high temperature service conditions, carburizing atmospheres, oxidation environments, thermal cycling exposure, and aggressive chemical processing systems requiring long-term mechanical reliability. We manufacture high-performance fastening products supplied to petrochemical plants, refinery operators, heat treatment facilities, furnace manufacturers, thermal processing companies, EPC contractors, power generation companies, and industrial procurement teams worldwide requiring dependable fastening solutions for elevated temperature applications.
Inconel 800 / 800H / 800HT Studs are widely used in industrial environments where oxidation resistance, creep resistance, structural stability at elevated temperatures, carburization resistance, and long-term metallurgical stability become essential. These nickel-iron-chromium alloy fasteners are specifically engineered for service environments involving continuous heat exposure, thermal stress cycles, oxidizing atmospheres, and pressure systems operating at elevated temperatures.
At Aurum Overseas, all fastening products are manufactured according to international engineering standards and supplied with complete material traceability, inspection reports, dimensional verification, export documentation, and quality certifications to support industrial buyers across global procurement markets.
What are Inconel 800, 800H & 800HT Stud Bolts?
Incoloy 800 Stud Bolts are fully threaded industrial fastening components manufactured from nickel-iron-chromium alloy specifically designed for applications requiring excellent oxidation resistance, carburization resistance, structural stability, and long-term creep resistance under elevated temperatures. These fastening systems are commonly installed with heavy hex nuts on both ends to secure pressure vessels, heat exchangers, furnace assemblies, reformer systems, boiler systems, petrochemical piping systems, and thermal engineering equipment exposed to prolonged high-temperature operating environments.
The 800 series alloy family includes three major grades engineered for different service conditions. Standard Incoloy 800 Studs provide excellent oxidation and corrosion resistance for general high-temperature industrial service. Alloy 800H Studs are modified with controlled carbon content to improve creep rupture strength under prolonged elevated temperature exposure. Incoloy 800HT Stud Bolts offer additional improvements in high-temperature structural stability and long-term metallurgical performance under severe thermal conditions.
Because of these performance advantages, UNS N08800 Fasteners are widely selected for industrial systems where conventional stainless steel fasteners may lose strength, experience oxidation damage, or fail under prolonged thermal stress conditions.
Inconel 800 Stud Bolts Specifications
| Specification | Details |
|---|---|
| ASTM Standards | ASTM F468, ASTM F467 |
| Additional Standards | ASTM B408, ASME SB408 |
| International Standards | ASTM, DIN, ISO, ANSI, BS, JIS, GB |
| Material Grades | Incoloy 800, 800H, 800HT |
| Size Range | M3 – M56 |
| Extended Sizes | M6 – M52 |
| Imperial Sizes | 1/4″ – 2″ |
| Standard Length | 3 mm – 200 mm |
| Extended Length | 1000 mm – 3000 mm |
| DIN Standard | DIN975 |
| Custom Sizes | Available |
Equivalent Grades of Incoloy 800 Series Fasteners
Industrial procurement teams often compare equivalent grades when sourcing high-performance fastening materials for temperature resistant applications.
| Grade | UNS Number | Werkstoff No. | Equivalent |
|---|---|---|---|
| Incoloy 800 | UNS N08800 | 1.4876 | Alloy 800 |
| Incoloy 800H | UNS N08810 | 1.4958 | Alloy 800H |
| Incoloy 800HT | UNS N08811 | 1.4959 | Alloy 800HT |
These equivalent grades help engineers select materials compatible with refinery systems, thermal processing plants, pressure systems, and high-temperature chemical processing equipment.
Mechanical Properties of Inconel 800 Series Stud Fasteners
The nickel-iron-chromium alloy chemistry provides excellent strength retention at elevated temperatures together with oxidation resistance and structural stability.
| Property | 800 / 800H / 800HT |
|---|---|
| Density | 7.94 g/cm³ |
| Melting Point | 1350°C |
| Tensile Strength | 520 MPa |
| Yield Strength | 205 MPa |
| Elongation | 30% |
| Oxidation Resistance | Excellent |
| Creep Resistance | Excellent |
| Thermal Stability | Superior |
Difference Between Incoloy 800, 800H & 800HT Stud Bolts
Although Incoloy 800, 800H, and 800HT Stud Bolts belong to the same nickel-iron-chromium alloy family, each grade is designed for different high-temperature service conditions based on strength, creep resistance, and long-term thermal stability.
| Grade | Key Advantage | Common Applications |
|---|---|---|
| Incoloy 800 | Strong oxidation & corrosion resistance | Heat exchangers, chemical plants |
| 800H | Improved creep strength at elevated temperatures | Pressure vessels, refinery systems |
| 800HT | Better long-term stability under continuous heat | Furnaces, petrochemical processing |
While Incoloy 800 Studs perform well in general heat-resistant applications, Alloy 800H Studs and Incoloy 800HT Stud Bolts are preferred for more demanding high-temperature systems requiring better mechanical stability over extended service periods.
Chemical Composition of Incoloy 800 Material
The balanced nickel, chromium, and iron chemistry allows the material to perform exceptionally well in high-temperature industrial environments.
| Element | Composition |
|---|---|
| Nickel | 30 – 35% |
| Chromium | 19 – 23% |
| Iron | 39.5% Min |
| Carbon | 0.10% Max |
| Silicon | 1.00% Max |
| Manganese | 1.50% Max |
| Aluminum | 0.15 – 0.60% |
| Titanium | 0.15 – 0.60% |
Available Sizes & Dimensions of Incoloy 800 Stud Fasteners
We manufacture industrial fastening solutions designed for furnace assemblies, heat exchangers, refinery systems, petrochemical plants, thermal reactors, industrial heating systems, boiler systems, and pressure equipment operating under elevated temperatures.
| Specification | Range |
|---|---|
| Diameter | M3 – M56 |
| Large Diameter Production | M6 – M52 |
| Imperial Sizes | 1/4″ – 2″ |
| Standard Length | 3 mm – 200 mm |
| Extended Production | Up to 3000 mm |
| Custom Manufacturing | Available |
| Bulk Supply | Available |
Thread Options Available for High Temperature Nickel Alloy Stud Fasteners
Thread precision directly affects clamp load consistency, thermal expansion tolerance, fatigue resistance, vibration performance, and long-term fastening stability in industrial systems operating under continuous heat exposure. We manufacture stud fasteners according to multiple thread standards based on engineering and project requirements.
| Thread Type | Industrial Application |
|---|---|
| UNC Threads | Structural industrial systems |
| UNF Threads | Precision engineering systems |
| Metric Threads | Standard industrial installations |
| BSW Threads | Heavy mechanical assemblies |
| Fine Threads | Thermal expansion systems |
| Coarse Threads | Structural fastening applications |
| Rolled Threads | Better fatigue resistance |
| DIN Threads | European engineering systems |
| ISO Threads | International equipment standards |
| Custom Threads | Project-specific manufacturing |
Why Inconel 800 Stud Bolts Are Used in High Temperature Industrial Applications
Industrial environments operating under continuous heat exposure, thermal cycling, oxidizing atmospheres, carburizing conditions, and prolonged elevated temperature service require fastening materials capable of maintaining mechanical strength and structural integrity over long operational cycles. Conventional stainless steel fasteners frequently lose mechanical stability, experience oxidation damage, or degrade when exposed to severe thermal service conditions.
This is where Inconel 800 / 800H / 800HT Studs provide major engineering advantages. The nickel-iron-chromium alloy composition offers excellent oxidation resistance, resistance against carburization, strong creep rupture performance, structural stability under prolonged heat exposure, and superior metallurgical performance under aggressive thermal conditions. Because of these properties, Incoloy 800 Studs are extensively used in heat treatment furnaces, petrochemical reactors, industrial boilers, pressure vessels, reformer systems, thermal processing plants, and refinery engineering systems operating continuously at elevated temperatures.
For industrial buyers evaluating high-temperature nickel alloy fastening materials, alternative grades such as Inconel 600 Studs, commonly selected for oxidation resistance and thermal stability applications, and Inconel 625 Studs, preferred for severe corrosion environments requiring higher chloride resistance, are also widely selected depending on service environment and operating temperature range.
Industries Using Inconel 800 Series Stud Fasteners
Because of exceptional heat resistance and oxidation resistance, these fastening systems are widely used across demanding industrial sectors.
| Industry | Application |
|---|---|
| Petrochemical Industry | Reactor systems |
| Furnace Manufacturing | Thermal assemblies |
| Power Plants | Boiler systems |
| Chemical Industry | High-temperature processing |
| Heat Treatment Plants | Furnace systems |
| Refinery Industry | Pressure systems |
| Industrial Heating Systems | Structural fastening |
Global Supply Solutions for Industrial Projects
Aurum Overseas supplies premium industrial fastening solutions to buyers across Germany, France, Italy, Netherlands, Spain, Belgium, Poland, and the United Kingdom, supporting furnace manufacturers, petrochemical companies, thermal engineering contractors, industrial heating manufacturers, refinery operators, and engineering procurement companies requiring dependable fastening solutions for elevated temperature service applications.
We also export fastening products across United States, Canada, UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Singapore, Malaysia, Australia, and South Korea, supporting EPC contractors, refinery operators, petrochemical companies, heat treatment facilities, heavy engineering companies, and industrial procurement teams requiring export-ready fastening solutions with complete documentation and material certification support.
Why Choose Aurum Overseas
Aurum Overseas supports industrial buyers worldwide with certified fastening solutions manufactured for demanding industrial engineering applications. Our products are supplied with complete traceability, inspection reports, material certificates, and export documentation.
With extensive experience in international supply chains and industrial metallurgy, we serve EPC contractors, refinery operators, petrochemical companies, thermal engineering contractors, power generation companies, industrial manufacturers, and procurement teams requiring dependable fastening solutions for critical industrial applications.
Frequently Asked Questions
1. What are Incoloy 800 Stud Bolts used for?
Incoloy 800 Stud Bolts are widely used in furnace systems, refinery equipment, petrochemical plants,
pressure vessels, heat exchangers, and industrial systems operating under continuous elevated
temperature conditions.
2. What is the difference between 800, 800H, and 800HT grades?
Standard Incoloy 800 Studs offer oxidation resistance, 800H improves creep rupture strength for
elevated temperature service, while 800HT provides superior long-term metallurgical stability under
prolonged heat exposure.
3. What are UNS N08800 Fasteners?
UNS N08800 Fasteners are nickel-iron-chromium alloy fastening products engineered for high-temperature
industrial systems requiring oxidation resistance and structural reliability.
4. Are Alloy 800H Studs suitable for furnace systems?
Yes. Alloy 800H Studs are widely used in furnace systems because they provide excellent oxidation
resistance, creep strength, and long-term structural stability under continuous heat exposure.
5. Where are Incoloy 800HT Stud Bolts commonly used?
Incoloy 800HT Stud Bolts are commonly used in petrochemical reactors, thermal processing systems,
industrial boilers, pressure vessels, and high-temperature refinery equipment.
6. Do you manufacture custom sizes?
Yes. Aurum Overseas manufactures Inconel 800 / 800H / 800HT Studs in custom diameters, thread
configurations, lengths, and project-specific industrial requirements.
Request Technical Support & Pricing
If you are sourcing high-temperature fastening solutions for furnace systems, petrochemical plants, thermal processing equipment, refinery systems, or industrial applications requiring dependable heat-resistant fastening materials, our team can assist with technical specifications, material selection, and commercial quotations based on project requirements.
Contact Aurum Overseas for product availability, engineering support, and bulk procurement assistance for domestic and international industrial supply requirements.
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