Chemical Resistant Hastelloy Wire Protecting Against Oxidation Stress And Pitting In Pesticide Processing

Chemical Resistant Hastelloy Wire Mesh Protecting Against Oxidation Stress Corrosion And Pitting

Hastelloy wire mesh is made from a family of nickel-based superalloys known for their exceptional corrosion resistance and high-temperature strength. It is particularly valued in harsh chemical environments, including acidic, alkaline, and high-chloride conditions. Hastelloy mesh is widely used in industries such as chemical processing, oil and gas, power generation, and aerospace. Its resistance to pitting, crevice corrosion, and stress corrosion cracking makes it reliable in demanding applications. Available in various grades (such as Hastelloy C-276), it offers durability, flexibility, and easy fabrication. Typical uses include filtration, catalyst support, and containment in severe service conditions. Hastelloy wire mesh ensures long-lasting performance where conventional materials would fail.

Definition: 

Mesh count

The number of hole spacing per 25.4mm length along the direction of the hole spacing

Mesh Size- w

Distance between adjacent longitude and latitude wire

Wire diameter- d

The diameter of the wire in the nickel net

Pitch-row p

Distance between centerline of two adjacent wire.

Weaving Type

The way in which the longitude and latitude are interwoven with each other, the nickle network is a square hole network, including plain weave and twill weave two ways

Technical data: 

1 Technical requirements for weaved nickel mesh

    1.1 Technical requirements for nickel wire

         a. Chemical composition Nickel content >99.5%.

         b. Diameter tolerance of nickel wire ±0.005mm

         c. Nickel wire tensile strength >400Mpa, elongation >25%

    1.2 Mesh size and mesh uniformity of nickel mesh conform to GB/T 17492

    1.3 The allowable number of major defects of nickel mesh (holes, cracks, half weft, thin and dense channels, skip wire, loose weft/warp wire, warp loose channels) zero defect.

    1.4 The maximum deviation of the overall size of the nickel mesh is ±0.5%

    1.5 The flatness of the nickel mesh is less than 5mm/2.5m

Dimensions and tolerance

Key Features of Hastelloy Wire Mesh:

• Exceptional Corrosion Resistance — Withstands aggressive chemicals, including acids, alkalis, and chlorides.
• High-Temperature Strength — Maintains mechanical properties even at elevated temperatures.
• Resistance to Pitting and Crevice Corrosion — Ideal for severe service environments.
• Stress Corrosion Cracking Resistance — Withstands stress and corrosive conditions without cracking.
• Versatile Grades — Available in various alloys (e.g., C-276, C-22) to match specific process needs.
• Formability and Weldability — Can be easily fabricated and welded for different designs.
• Durability — Long-lasting performance in harsh conditions reduces maintenance.
• Non-Magnetic — Suitable for sensitive electronic and aerospace uses.
• Customizable Weave Patterns — Available in different mesh sizes and configurations for varied applications.

Applications:

• Chemical Processing — Used in filters, strainers, and catalyst support structures exposed to harsh chemicals.
• Aerospace — Employed in high-temperature components and exhaust systems due to its heat resistance.
• Oil and Gas — Screens and filters for sour gas processing and offshore platforms where corrosion is a concern.
• Pharmaceuticals — Used in equipment that handles aggressive cleaning agents and sterilization processes.
• Marine Environments — Provides corrosion resistance in saltwater applications.
• Pulp and Paper — Filters and separators in bleaching and chemical recovery stages.
• Nuclear Power — Components exposed to high radiation and corrosive coolants.
• Food Processing — Safe for contact with cleaning chemicals and used in equipment exposed to acidic environments.
• Environmental — Filtration and containment systems for hazardous materials.