Hastelly C22 Stud Bolt

The Hastelly C22 Stud Bolt is engineered for the toughest environments where ordinary steel or stainless fasteners fail. Crafted from Hastelloy C-22 (UNS N06022), this high-performance nickel-chromium-molybdenum-tungsten alloy delivers unmatched corrosion resistance across oxidizing and reducing media, including chlorides, seawater, and mixed or contaminated chemical solutions. Unlike ordinary fasteners, these stud bolts excel in highly reactive industrial processes, maintaining integrity under stress, heat, and corrosive attack.

This stud bolt’s smooth, bright finish and precision threading ensure seamless assembly with associated components, and the option for custom sizing and marking makes it ideal for specialized installations in chemical, marine, petrochemical, and power applications. Every part is verified and supplied with a traceable EN10204-3.1B quality certificate, assuring customers of consistent quality and performance.

Key Features & Benefits

1. Exceptional Corrosion Resistance

• Engineered from Hastelloy C-22 alloy, known for resisting both oxidizing and reducing acids, including chlorides and wet chlorine.

• Protects critical joints in aggressive environments where pitting, crevice corrosion, or stress corrosion cracking is a concern.

2. High Thermal Stability

• Maintains structural reliability across a wide service temperature range.

• Ideal for processes that cycle between high heat and extreme exposure without material degradation.

3. Superior Mechanical Strength

• Excellent tensile and yield strength, coupled with good elongation, means robust performance under load and vibration.

• Consistent performance reduces maintenance downtime and replacement costs.

4. Precision Engineering for Fit & Function

• Available in full thread or custom thread configurations.

• Smooth finish and tight tolerance improve assembly feel and reduce thread galling.

5. Customization & Traceability

• OEM and custom orders available — including marking, size adjustments, and certification packages.

• Supplied with EN10204-3.1B test certificates for quality assurance.

Hastelloy C-22 Alloy — Material Overview

Hastelloy C-22 (UNS N06022 / 2.4602) is a nickel-based superalloy designed for extreme corrosion resistance and ease of fabrication. You can expect:

• Broad-spectrum corrosion resistance in both oxidizing and reducing environments.

• Resistance to pitting, crevice corrosion, and stress corrosion cracking, outperforming several other nickel alloys.

• Excellent weldability and ductility, making it suitable for complex assemblies where flexibility and reliability matter.

• This material is widely used in chemical processing, petrochemical systems, flue gas desulfurization (FGD), and marine applications demanding premium performance.

Why Choose Hastelly C22 Stud Bolt?

You are choosing more than a fastener — you are choosing reliability in adversity.

• Unmatched Long-Term Performance: Designed to withstand chemical exposure and extreme conditions that degrade standard fasteners.

• Built for Precision: Tight tolerances and smooth threading reduce installation stress and ensure secure fitting.

• Customized for Your Project: From marking to specialized sizes, configurations are available to match exact needs.

• Verified Quality: Each batch comes with EN10204-3.1B documentation for traceability and confidence in specification compliance.

• Peace of Mind: When your application demands resilience, these stud bolts deliver — reducing rework, returns, and field failures.

FAQ

Q1: Where can Hastelloy C-22 stud bolts be used?

Hastelloy C-22 stud bolts are ideal in chemical processing, oil & gas, maritime, and industrial heat exchangers, where corrosive species like chlorides, acids, or mixed contaminants are present.

Q2: Are custom lengths and threads available?

Yes — custom sizes, thread types (metric, UNC, UNF, etc.), and marking can be supplied based on drawings or customer specifications.

Q3: What certification is supplied with the stud bolts?

Standard supply includes an EN10204-3.1B test certificate. Additional certification can be issued upon request.

Q4: How does C-22 compare to other superalloys?

Hastelloy C-22 offers broader corrosion resistance than many other nickel alloys, especially against chloride-induced corrosion and mixed acids, making it a premium choice in aggressive environments.

Q5: Can these bolts be exposed to high temperatures?

Yes — they maintain integrity across elevated temperatures typical in industrial processes, though specific service temperature limits should be verified per application needs.