Hastelloy C22 Fasteners

High-Performance Hastelloy C22 Fasteners – Superior Corrosion Resistance Solutions for Critical Industrial Applications

Hastelloy C22 Fasteners Nickel-Chromium-Molybdenum-Tungsten Alloy Components for Extreme Corrosive Applications. Manufactured and designed to ISO 9001, AS9100D, and AS9120 standards at TSM Technology’s 60,000㎡ facility, these UNS N06022 fasteners resist oxidizing and reducing acids. Fastener sizes (M2.5 to M32) & Special Lengths (1mm to 1990mm) We deliver in 10-25 days with complete EN10204 3.1/3.2 certification. They contain 22 percent chromium and outperform C276 for pitting, stress corrosion cracking and early failure in chemical reactors and pharmaceutical scrubbers.

What are the Hastelloy C22 Fasteners?

These fasteners are made from Alloy 2.4602, a blend of nickel, chromium, molybdenum, and tungsten. They handle big industrial concerns such as bolt failures in mixed acid systems, localized corrosion in flue gas desulfurization plants and degradation in chlorination.

Unlike typical stainless steel, these fasteners retain their structural strength in moist chlorine gas, hypochlorite solutions and temperatures of up to 677°C. They have exceptionally high chromium content which provides them remarkable oxidation resistance and makes them appropriate for conditions where normal alloys fail.

Supply Type

 

Hastelloy C22 fasteners supply types include: standard bolts, nuts, screws, washers and customized parts, suitable for high temperature and corrosion resistant occasions.

 

 

 

 

Specification

Parameter	Details
Size Range	M2.5–M32 or Customized
Length	1mm–1990mm or Customized
Standard	ASTM F467, ASTM B160/B166
Form	Bolts, Nuts, Screws, Studs, Washers
Delivery Time	10–25 days
Documentation	EN10204 3.1/3.2, Third Party Inspection Report

  Physical and Chemical Properties

Standards for Hastelloy C22 Fasteners

TSM Technology manufactures products to the raw material specifications ASTM F467 and ASTM B160/B166. All items satisfy ASME and EN standards.

Distribution quality for aerospace grade with EN 9120:2018 certification. Each batch undergoes thorough third party validation to confirm compliance with international pressure vessel regulations and industry specific criteria.

What are the Features of Hastelloy C22 Fasteners?

Outstanding Corrosion Resistance: Completely resistant to moist chlorine, chlorine dioxide and mixed acid conditions.

High Temperature Stability: Mechanical characteristics are maintained at temperatures up to 677°C without deterioration.

Better than C276: Superior resistance to oxidizing environments and pitting corrosion thanks to higher chromium concentration.

No PWHT Needed – The alloy chemistry resists grain-boundary precipitation, which makes manufacturing and installation easier.

Long Service Life: Minimizes maintenance expenses and equipment downtime in chemical processing and pharmaceutical manufacturing settings.

Application

Hastelloy C22 Fasteners are significant in numerous industries:

Chemical Processing: Reactors, heat exchangers and scrubbers for sulfuric acid, hydrochloric acid and chlorine compounds.

Pharmaceutical Manufacturing: Cleanroom equipment and reaction vessels that need ultrahigh purity and corrosion resistance.

Environmental Systems: Acid condensates exposed to flue gas desulfurization units and waste water treatment facilities.

Petrochemical Industry: Sour Gas and Chloride-Induced Stress Corrosion Cracking of Refinery Piping Systems and Offshore Platforms.

Production and Processing Technology

TSM Technology’s ultramodern 60,000㎡ facility carries out full-process production from melting to final inspection with over 100 precision equipment. We offer the latest forging technology to provide tight tolerances and high surface finishes.

Hot forging at controlled temperature produces excellent grain structure and CNC machining delivers the correct thread profiles. Heat-treat in line with aircraft standards to provide the appropriate mechanical properties. Our AS9100D certification proves our capability to produce aerospace quality fasteners with complete traceability.

Quality Inspection

TSM Technology conducts full scale testing in accordance with ASTM F467 and B160/B166 standards:

Chemical composition: OES and XRF tests to validate alloy specification.

Mechanical Testing: Strength is verified using tensile, proof load, hardness and shear tests.

NDT: Identifiable surface and subsurface faults using penetrant testing (PT), ultrasonic testing (UT) for big bolts, and magnetic particle testing (MT).

Dimensional Verification: Thread gages, calipers and CMM equipment are used to maintain precision.

Stress-Corrosion Testing: Important tests for sour-service and aerospace applications.

Hydrogen Embrittlement Tests: Avoid delayed failures in high stress settings.

Our Certificate

· EN 9120:2018 – Aerospace Distribution Quality Management System for titanium and nickel alloys

· AS9100D – Aerospace manufacturing quality assurance for titanium materials

· ISO 13485:2016 – Medical device quality management for surgical-grade titanium

· EN 9100:2018 – Certified machining of aerospace bars, rings, and discs

· ISO 9001 – International quality management system certification

Company Exhibition

TSM Technology is a frequent exhibitor at international shows including Tube Düsseldorf, OTC Houston and China International Industry Fair. “Such events highlight our latest alloy innovations and promote direct engagement with engineering teams around the world.

We show because we believe in openness and technological leadership in the specialty metals industry. Drop by our booth to discuss bespoke fastener specs and see actual examples.

Customer Cases

We have successfully supplied our Hastelloy C22 Fasteners to major chemical facilities in Europe and Asia where they have replaced defective stainless steel nuts in chlorine scrubber systems removing quarterly maintenance shutdowns.

Pharmaceutical firms in North America use our fasteners in their bioreactor assemblies, and we have FDA audit compliance due to our thorough material traceability documentation.

Why Choose TSM Technology?

Certified Excellence: Company-wide conformity with ISO 13485:2016 for medical devices, EN 9100:2018 for aerospace machining and EN 9120:2018 for distribution.

14+ Years of Global Experience: Exported to 70+ countries with proven dependability in demanding applications.

Fast Delivery: Efficient Hong Kong logistics center offers 10-25 day lead times.

Custom Solutions: Engineering assistance for non-standard sizes and specific needs.

Complete Documentation: QAC, ITP, MTR and material certifications traceable to completion.

Technical Expertise: R&D team creates optimum alloy processing processes and offers post-sales assistance.

Package and Shipping

Fasteners are packaged separately with plastic covers and stored in labeled boxes with desiccants to limit exposure to moisture. Outer packing: plywood container or steel crate for sea and air transportation. All shipments are accompanied by packing lists, commercial invoices and material certifications. Our Hong Kong logistics center will organize customs clearance and transport the goods by DHL, FedEx or freight forwarders depending on the order size and destination requirements.

FAQ

Q: How do C22 and C276 fasteners compare?

A: C22 has 22% chromium as opposed to 16% therefore it has significantly better resistance to oxidizing conditions and localized corrosion like pitting.

Q: Are product good for high temperature applications?

A: Yes, they offer an excellent stability and resistance up to 677°C for applications connected to pressure vessels.

Q. Are these fasteners PWHT (post weld heat treated)?

A. Generally no, the alloy chemistry is not favorable to grain-boundary precipitation in the weld heat-affected zone.

Q: Is Fasteners resistant to moist chlorine gas?

A: Yes, they provide 100% resistance to wet chlorine, hypochlorite and chlorine dioxide. They are one of the few alloys that can.

Q: What certifications do I request?

A: Always ask for an EN 10204 3.1 Mill Test Certificate with heat figures, chemical analysis and physical test findings.

Q: What are TSM Technology's payment terms?

A: T/T, L/C, Paypal, Western Union or tailored according to long-term cooperation agreements.

Contact Us

Ready to solve your corrosion challenges with certified Hastelloy C22 Fasteners? Contact TSM Technology today at info@tsmnialloy.com for technical specifications, quotations, and sample requests.