Hastelloy C22 Bolts – Global Supplier & Exporter
Aurum Overseas is a trusted Hastelloy C22 Bolts Supplier & Exporter serving customers across the USA, UAE, Saudi Arabia, Europe, and international industrial markets. We supply high-performance UNS N06022 Bolts manufactured to ASTM and ASME specifications for critical applications exposed to aggressive chemical environments.
Hastelloy C22 is one of the most versatile nickel-chromium-molybdenum alloys available for industrial fastening applications. The alloy provides outstanding resistance to oxidizing chemicals, reducing acids, wet chlorine environments, chlorides, mixed chemical streams, and various process media encountered in chemical plants and processing facilities.
Industrial buyers often select Hastelloy C22 Bolts when conventional stainless steel fasteners cannot provide sufficient protection against corrosion. The alloy's superior resistance to pitting, crevice corrosion, stress corrosion cracking, and localized attack makes it a preferred solution for highly corrosive operating conditions.
As an experienced Hastelloy C22 Bolts Exporter, Aurum Overseas supports EPC contractors, chemical processing companies, petrochemical operators, pharmaceutical manufacturers, and industrial engineering firms worldwide with certified fastening solutions.
Hastelloy C22 Bolts Product Overview
Hastelloy C22 (UNS N06022) is a nickel-chromium-molybdenum-tungsten alloy developed to deliver exceptional corrosion resistance across a wide range of industrial environments. Unlike many alloys that perform well in only oxidizing or reducing conditions, Hastelloy C22 provides protection in both environments.
The alloy contains high levels of chromium and molybdenum that help resist oxidizing acids, chlorides, and aggressive chemical media. This unique composition allows Hastelloy C22 Bolts to perform reliably in applications where equipment is exposed to multiple chemical streams simultaneously.
Because of its versatility, UNS N06022 is commonly specified for reactors, scrubbers, chemical storage systems, heat exchangers, pressure vessels, pharmaceutical equipment, flue gas desulfurization systems, and pollution control installations.
The alloy also demonstrates excellent weldability and fabrication characteristics, making it suitable for custom fastening applications requiring precise engineering and long-term service reliability.
Specifications of Hastelloy C22 (UNS N06022) Bolts
| Specification | Details |
|---|---|
| Product | Hastelloy C22 Bolts |
| Material Grade | Hastelloy C22 |
| UNS Number | N06022 |
| Specifications | ASTM B574 / ASME SB574 |
| Standards | DIN, ASTM, ISO, JIS, BS, GB, IS and International Standards |
| Bolt Size | M3 – M100 |
| Diameter | M3 – M56 |
| Custom Diameter | Up to 500 mm |
| Length | 3 mm – 200 mm |
| Custom Length | Available |
| Thread Types | UNF, UNC, BSW, BSF, Metric, UNEF, NPT, NPTF |
| Dimensions | DIN 931, DIN 933, DIN 934, DIN 912, DIN 603, DIN 6923 |
| ASME Standards | ASME B18.2.1, ASME B18.3 |
| ISO Standards | ISO 4032, ISO 4033, ISO 4017, ISO 7380 |
| Forms | Hex, Square, Round, Threaded |
| Head Types | Hex, Square, Round, Hex Flange, Flat Head, T Head |
| Neck Types | Hex, Square, Triangular, Oval, Knurled |
| Manufacturing | Hot Forged, Cold Forged, CNC Machined |
| Certification | EN 10204 3.1 / 3.2 |
Mechanical Properties of UNS N06022 Bolting Materials
The combination of high mechanical strength and corrosion resistance makes Hastelloy C22 suitable for critical industrial fastening applications.
| Property | Value |
|---|---|
| Tensile Strength | 690 MPa Min |
| Yield Strength | 310 MPa Min |
| Elongation | 45% Min |
| Density | 8.69 g/cm³ |
| Hardness | 95 HRB Approx |
| Melting Range | 1325°C – 1370°C |
These mechanical properties help ensure reliable performance under demanding operating conditions involving pressure, temperature variation, and chemical exposure.
Chemical Composition of Hastelloy® C22 Alloy Bolts
The exceptional corrosion resistance of Hastelloy C22 results from its carefully balanced alloy chemistry.
| Element | Composition (%) |
|---|---|
| Nickel | Balance |
| Chromium | 20.0 – 22.5 |
| Molybdenum | 12.5 – 14.5 |
| Iron | 2.0 – 6.0 |
| Tungsten | 2.5 – 3.5 |
| Cobalt | 2.5 Max |
| Manganese | 0.5 Max |
| Silicon | 0.08 Max |
| Carbon | 0.015 Max |
| Vanadium | 0.35 Max |
The combination of chromium, molybdenum, and tungsten significantly improves resistance to pitting, crevice corrosion, and aggressive process chemicals.
Equivalent Grades & International Designations of Hastelloy C22
| Standard | Grade |
|---|---|
| UNS | N06022 |
| ASTM | B574 |
| ASME | SB574 |
| Werkstoff Number | 2.4602 |
| EN | NiCr21Mo14W |
| Trade Name | Hastelloy C22 |
| Material Family | Nickel-Chromium-Molybdenum Alloy |
Types of Hastelloy C22 Bolts Available
Hastelloy C22 (UNS N06022) Bolts are widely used in chemical processing, pharmaceutical manufacturing, pollution control systems, and petrochemical facilities where excellent corrosion resistance is required.
Bolt Type
| Bolt Type | Application |
|---|---|
| Hex Bolts | General industrial and process equipment fastening |
| Heavy Hex Bolts | High-pressure and heavy-duty installations |
| Stud Bolts | Flange connections and pressure vessels |
| Anchor Bolts | Equipment and structural mounting |
| U Bolts | Pipe support and tubing systems |
| Eye Bolts | Lifting and maintenance applications |
| Socket Head Bolts | Compact assemblies requiring high strength |
| Fully Threaded Bolts | Applications requiring full thread engagement |
| Custom Bolts | Manufactured as per project specifications |
Available Thread Types
| Thread Type | Availability |
|---|---|
| UNC Threads | Available |
| UNF Threads | Available |
| UNEF Threads | Available |
| NPT Threads | Available |
| NPTF Threads | Available |
| Metric Threads | Available |
| BSW Threads | Available |
| BSF Threads | Available |
Hastelloy C22 Bolts Suppliers in Europe for Chemical Processing Applications
Europe remains a major market for Hastelloy C22 Bolts due to the region's advanced chemical processing, pharmaceutical manufacturing, environmental engineering, and industrial processing sectors. Aurum Overseas exports certified UNS N06022 Bolts to Germany, France, Italy, Netherlands, Belgium, Spain, Poland, and other European countries.
European manufacturers frequently specify Hastelloy C22 for equipment exposed to aggressive chemicals, mixed acid streams, and chloride-containing process environments. The alloy's broad corrosion resistance helps reduce maintenance costs and improve long-term operational reliability.
UNS N06022 Bolts Exporters in USA for Industrial & Pharmaceutical Manufacturing
The United States has extensive demand for Hastelloy C22 Bolts across chemical processing, pharmaceutical manufacturing, pollution control systems, and industrial engineering projects. The alloy's corrosion resistance makes it ideal for critical process equipment exposed to harsh operating conditions.
Many American engineering companies use UNS N06022 Bolts in reactors, piping systems, pressure vessels, scrubbers, and pharmaceutical processing equipment where corrosion-related failures can result in costly downtime.
Hastelloy C22 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 C22 Bolts throughout UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain.
Industrial facilities in the Gulf often operate under conditions involving corrosive chemicals, high temperatures, and demanding process requirements. Hastelloy C22 helps ensure reliable performance and extended equipment life.
Why Industrial Buyers Choose Aurum Overseas for UNS N06022 Bolts
Aurum Overseas supplies certified Hastelloy C22 Bolts manufactured according to international standards and project-specific requirements. Our technical expertise in nickel alloy fastening solutions allows us to support chemical processing, pharmaceutical, petrochemical, environmental engineering, and industrial manufacturing applications worldwide.
Industrial buyers choose Aurum Overseas because of our material traceability, inspection support, export documentation, consistent quality standards, and ability to supply customized bolting solutions for demanding operating environments.
Industries Using Hastelloy C22 Bolting Solutions
These industries rely on Hastelloy C22 because of its ability to withstand aggressive chemicals and highly corrosive service conditions.
| 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 |
| Flue Gas Desulfurization Plants | Emission control equipment |
| Marine Engineering | Seawater applications |
| Pulp & Paper Industry | Bleaching and processing systems |
| Power Generation | Corrosion-resistant equipment |
| Water Treatment Systems | Industrial water processing |
| Fertilizer Manufacturing | Acid processing equipment |
| Specialty Chemical Production | Custom process equipment |
| Industrial Manufacturing | Corrosion-resistant assemblies |
Hastelloy C22 Bolts Grade Comparison for Corrosive Chemical Applications
Hastelloy C22 Bolts are widely selected for applications involving aggressive chemicals, oxidizing media, chloride-containing environments, and mixed acid processing systems. The alloy offers one of the broadest corrosion resistance profiles among nickel-based alloys, making it suitable for highly demanding chemical processing and pollution control applications.
For applications involving severe reducing environments and strong hydrochloric acid service, industrial buyers often evaluate Hastelloy C276 Bolts, which are known for their exceptional resistance to localized corrosion and harsh process chemicals. Where resistance to reducing acids such as sulfuric and hydrochloric acid is the primary requirement, Hastelloy B2/B3 Bolts are frequently considered for specialized chemical processing equipment.
Frequently Asked Questions
1. What is Hastelloy C22?
Hastelloy C22 is a nickel-chromium-molybdenum alloy designed to provide outstanding resistance to
oxidizing chemicals, reducing acids, chlorides, and mixed chemical environments.
2. What is UNS N06022?
UNS N06022 is the official material designation for Hastelloy C22 used in international specifications,
standards, and engineering documentation.
3. Why are Hastelloy C22 Bolts used in chemical processing plants?
The alloy provides excellent resistance to aggressive chemicals, corrosion, pitting, crevice attack, and
stress corrosion cracking commonly encountered in chemical processing operations.
4. What industries use UNS N06022 Bolts?
Chemical processing, pharmaceuticals, petrochemicals, pollution control, power generation, specialty
chemicals, and industrial manufacturing are among the major industries using Hastelloy C22 Bolts.
5. Why Choose Hastelloy C22 Instead of Stainless Steel Bolts?
Hastelloy C22 provides significantly better resistance to aggressive acids, chlorides, and mixed
chemical streams compared to conventional stainless steel grades, making it suitable for highly
corrosive service conditions.
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Looking for a reliable Hastelloy C22 Bolts Supplier & Exporter for chemical processing, pharmaceutical manufacturing, petrochemical facilities, or industrial engineering projects?
Aurum Overseas supplies certified UNS N06022 Bolts with complete material traceability, inspection reports, third-party testing, and worldwide delivery support. Share your technical specifications, project requirements, or quantity requirements to receive a competitive quotation from our alloy fastening specialists.
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