Hastelloy C276 Bolts – Global Supplier & Exporter
Aurum Overseas is a leading Hastelloy C276 Bolts Supplier & Exporter serving industrial customers across the USA, UAE, Saudi Arabia, Europe, and global markets. We supply certified UNS N10276 Bolts manufactured according to ASTM and ASME specifications for highly corrosive process environments where standard stainless steel fasteners are unable to provide long-term reliability.
Hastelloy C276 is one of the most widely used nickel-chromium-molybdenum alloys in the world. The alloy is specifically designed to withstand aggressive chemical media, strong oxidizing and reducing acids, chlorides, wet chlorine gas, sulfur compounds, and mixed chemical streams. Because of its exceptional corrosion resistance, Hastelloy C276 has become a preferred bolting material in chemical processing, pollution control, petrochemical, offshore, pharmaceutical, and power generation industries.
Industrial facilities often operate in environments where equipment is exposed to multiple corrosive chemicals simultaneously. In such conditions, conventional stainless steel grades may suffer from pitting, crevice corrosion, or stress corrosion cracking. Hastelloy C276 Bolts provide superior protection against these failure mechanisms, helping improve operational safety and reduce maintenance costs.
As an experienced Hastelloy C276 Bolts Exporter, Aurum Overseas supports EPC contractors, process equipment manufacturers, refinery operators, chemical plants, and industrial engineering companies with complete material traceability, inspection reports, third-party testing, and global logistics support.
Hastelloy C276 Bolts Product Overview
Hastelloy C276 (UNS N10276) is a nickel-molybdenum-chromium alloy with the addition of tungsten, developed for exceptional corrosion resistance in a broad range of industrial environments. It is often regarded as one of the most versatile corrosion-resistant alloys available for industrial fastening applications.
The alloy provides excellent resistance to oxidizing chemicals, reducing acids, chlorides, sulfuric acid, phosphoric acid, hydrochloric acid, organic acids, and seawater environments. Unlike many materials that perform well in only specific conditions, Hastelloy C276 offers balanced corrosion resistance across a wide variety of operating environments.
The low carbon content of the alloy helps minimize carbide precipitation during welding, maintaining corrosion resistance even in welded structures. This characteristic makes Hastelloy C276 particularly suitable for fabricated process equipment and critical fastening systems.
Because of these advantages, UNS N10276 Bolts are widely used in chemical reactors, pressure vessels, heat exchangers, scrubbers, flue gas desulfurization systems, offshore platforms, marine equipment, and pharmaceutical processing systems.
Specifications of Hastelloy C276 (UNS N10276) Bolts
| Specification | Details |
|---|---|
| Product | Hastelloy C276 Bolts |
| Material Grade | Hastelloy C276 |
| UNS Number | N10276 |
| Specifications | ASTM B574 / ASME SB574 |
| Additional Standard | ASTM F2281 |
| Standards | DIN, ASTM, BS and International Standards |
| Bolt Size | M3 – M56 |
| Imperial Size | 3/6" to 2" |
| Custom Sizes | Available |
| Length | 3 mm – 200 mm |
| Dimensions | DIN, ASTM, BS Standards |
| Heat Treatment | Annealing, Stress Relieving, Quenching & Tempering |
| Manufacturing Process | Hot Forged, Cold Forged, CNC Machined |
| Certification | EN 10204 3.1 / 3.2 |
Mechanical Properties of UNS N10276 Bolting Materials
The excellent mechanical properties of Hastelloy C276 contribute to its long-term performance in aggressive industrial environments.
| Property | Value |
|---|---|
| Tensile Strength | 690 MPa Min |
| Yield Strength | 283 MPa Min |
| Elongation | 40% Min |
| Density | 8.89 g/cm³ |
| Hardness | 100 HRB Approx |
| Melting Range | 1325°C – 1370°C |
These properties allow Hastelloy C276 Bolts to perform reliably in demanding industrial applications where both strength and corrosion resistance are essential.
Chemical Composition of UNS N10276 Nickel Alloy Bolts
The alloy chemistry is responsible for the exceptional corrosion resistance of Hastelloy C276.
| Element | Composition (%) |
|---|---|
| Nickel | Balance |
| Molybdenum | 15.0 – 17.0 |
| Chromium | 14.5 – 16.5 |
| Iron | 4.0 – 7.0 |
| Tungsten | 3.0 – 4.5 |
| Cobalt | 2.5 Max |
| Manganese | 1.0 Max |
| Silicon | 0.08 Max |
| Carbon | 0.01 Max |
| Vanadium | 0.35 Max |
The high molybdenum and chromium content contributes significantly to resistance against localized corrosion, chloride attack, and aggressive chemical environments.
Equivalent Grades & International Designations of Hastelloy C276
| Standard | Grade |
|---|---|
| UNS | N10276 |
| ASTM | B574 |
| ASME | SB574 |
| Werkstoff Number | 2.4819 |
| EN | NiMo16Cr15W |
| Trade Name | Hastelloy C276 |
| Material Family | Nickel-Chromium-Molybdenum Alloy |
Types of Hastelloy C276 Bolts Available
Hastelloy C276 (UNS N10276) Bolts are available in various configurations to meet the requirements of chemical processing, petrochemical, offshore, and industrial applications. The appropriate bolt type is selected based on operating conditions, installation requirements, and load-bearing needs.
Bolt Type
| Bolt Type | Application |
|---|---|
| Hex Bolts | General industrial fastening and piping systems |
| Heavy Hex Bolts | High-pressure and heavy-duty applications |
| Stud Bolts | Flanges, valves, and pressure vessels |
| Anchor Bolts | Equipment and structural installations |
| U Bolts | Pipe support and tubing systems |
| Eye Bolts | Lifting and rigging applications |
| Socket Head Bolts | Compact assemblies requiring high strength |
| Fully Threaded Bolts | Maximum thread engagement applications |
| Custom Bolts | Manufactured as per project specifications |
Thread Options
| Thread Type | Availability |
|---|---|
| UNC Threads | Available |
| UNF Threads | Available |
| Metric Threads | Available |
| BSW Threads | Available |
| BSF Threads | Available |
| Custom Thread Profiles | Available |
Hastelloy C276 Bolts Suppliers in Europe for Chemical Processing Applications
Europe has extensive demand for Hastelloy C276 Bolts across chemical manufacturing, environmental engineering, pharmaceutical production, and industrial processing facilities. Aurum Overseas exports certified UNS N10276 Bolts to Germany, France, Italy, Netherlands, Belgium, Spain, and other European countries.
The alloy's resistance to aggressive chemicals and chloride-containing environments makes it highly suitable for reactors, scrubbers, pressure vessels, and process equipment operating in corrosive industrial conditions.
UNS N10276 Bolts Exporters in USA for Industrial & Offshore Applications
The USA remains one of the largest markets for Hastelloy C276 due to its widespread use in chemical processing, offshore engineering, pharmaceutical manufacturing, and environmental control systems.
Industrial operators often choose UNS N10276 Bolts for equipment exposed to corrosive chemicals, chloride-containing process streams, and harsh offshore environments where long-term reliability is critical.
Hastelloy C276 Fasteners Suppliers in Gulf Countries for Petrochemical Projects
The Gulf region's petrochemical, refining, and industrial sectors frequently require corrosion-resistant bolting materials capable of performing in aggressive process environments. Aurum Overseas exports Hastelloy C276 Bolts across UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain.
Petrochemical facilities often operate under highly corrosive conditions involving acids, sulfur compounds, chlorides, and chemical mixtures. Hastelloy C276 helps improve equipment service life and operational reliability in these environments.
Why Industrial Buyers Choose Aurum Overseas for UNS N10276 Bolts
Aurum Overseas supplies certified Hastelloy C276 Bolts manufactured according to international quality standards and customer-specific project requirements. Our expertise in nickel alloy fastening solutions enables us to support demanding industrial applications worldwide.
Industrial buyers rely on Aurum Overseas because of our material traceability, inspection support, third-party testing, export experience, and ability to supply custom bolting solutions for critical applications.
Industries Using Hastelloy C276 Bolting Solutions
These industries require fastening materials capable of resisting severe corrosion while maintaining mechanical reliability over long service periods.
| Industry | Applications |
|---|---|
| Chemical Processing Plants | Reactors and process equipment |
| Petrochemical Facilities | Process piping and vessels |
| Pharmaceutical Manufacturing | Processing equipment |
| Pollution Control Systems | Scrubbers and treatment systems |
| Offshore Platforms | Subsea and topside systems |
| Marine Engineering | Seawater applications |
| Power Generation Plants | Corrosion-resistant equipment |
| Flue Gas Desulfurization Systems | Emission control equipment |
| Water Treatment Facilities | Industrial water processing |
| Fertilizer Manufacturing | Acid processing equipment |
| Specialty Chemical Production | Custom process equipment |
| Industrial Processing Plants | Corrosion-resistant assemblies |
Hastelloy C276 Bolts Grade Comparison for Corrosive Chemical Applications
Hastelloy C276 Bolts are widely selected for applications involving strong acids, chlorides, oxidizing chemicals, reducing environments, and mixed chemical process streams. The alloy is often considered one of the most versatile corrosion-resistant nickel alloys available for industrial fastening applications.
For applications where superior resistance to oxidizing chemicals and wet chlorine environments is required, industrial buyers often evaluate Hastelloy C22 Bolts. Where excellent resistance to hydrochloric acid and other strong reducing acids is the primary requirement, Hastelloy B2 Bolts are frequently specified for specialized chemical processing systems.
Frequently Asked Questions
1. What is Hastelloy C276?
Hastelloy C276 is a nickel-molybdenum-chromium alloy with tungsten additions designed to provide
exceptional corrosion resistance in both oxidizing and reducing environments.
2. What is UNS N10276?
UNS N10276 is the official material designation for Hastelloy C276 used in international engineering
standards and specifications.
3. What industries commonly use UNS N10276 Bolts?
Chemical processing, petrochemical manufacturing, pharmaceuticals, offshore engineering, pollution
control, marine engineering, and power generation industries frequently use Hastelloy C276 Bolts.
4. Do you export Hastelloy C276 Bolts worldwide?
Yes. Aurum Overseas exports certified Hastelloy C276 Bolts to USA, UAE, Saudi Arabia, Qatar, Kuwait,
Oman, Bahrain, and other international industrial markets.
5. Do you export Hastelloy C276 Bolts to Europe?
Yes. We regularly export Hastelloy C276 Bolts to Germany, France, Italy, the Netherlands, Belgium,
Spain, and the UK with complete export documentation and inspection certificates.
6. Why choose Aurum Overseas for Hastelloy C276 Bolts?
Aurum Overseas combines quality manufacturing, technical expertise, inspection support, custom
production capabilities, and reliable global logistics to supply certified Hastelloy C276 Bolts for
demanding industrial applications worldwide.
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Looking for a reliable Hastelloy C276 Bolts Supplier & Exporter for chemical processing, offshore engineering, petrochemical facilities, or industrial manufacturing projects?
Aurum Overseas supplies certified UNS N10276 Bolts with complete material traceability, inspection reports, third-party testing, and worldwide delivery support. Share your specifications, drawings, quantities, or project requirements to receive a competitive quotation from our alloy fastening specialists.
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