Most Common Hastelloy Wire Mesh Grades
Hastelloy C-276: is a high-performance nickel-based alloy offering excellent all-round corrosion resistance to aggressive media such as hydrochloric, sulfuric, phosphoric and hydrofluoric acids, as well as wet chlorine and hypochlorite solutions, with strong resistance to chloride-induced stress corrosion cracking (SCC), pitting and crevice corrosion and a PREN value of about 55. It operates reliably from –196 °C to 1040 °C (up to 1150 °C for short periods), maintains superior corrosion resistance in the as-welded condition, and features typical mechanical properties of tensile strength ≥758 MPa, yield strength ≥358 MPa, elongation ≥40% and hardness around 90 HRB, making it easy to fabricate and weld for use in chemical processing, flue gas desulfurization, marine engineering, pulp bleaching and nuclear fuel reprocessing applications.
Hastelloy C-22: is an optimized nickel-based alloy in the C-series, featuring higher chromium and lower molybdenum and tungsten contents than C-276, which provides superior corrosion resistance in oxidizing environments. It offers excellent resistance to pitting, crevice corrosion, intergranular corrosion and stress corrosion cracking (SCC), and performs exceptionally well in mixed oxidizing and reducing acid media. The alloy exhibits outstanding weldability, with minimal carbide precipitation in the heat-affected zone and weld corrosion resistance close to that of the base metal. Suitable for service temperatures from –196 °C to 1040 °C, Hastelloy C-22 combines good high-temperature strength and toughness, making it widely used in waste incineration systems, pharmaceutical strong acid reactors, sulfuric acid regeneration units, seawater desalination equipment and pollution control applications.
Hastelloy X:is a nickel–chromium–iron–molybdenum alloy specifically designed for high-temperature service, offering excellent oxidation resistance, thermal fatigue resistance and high-temperature strength. It is suitable for long-term operation at temperatures up to 815 °C and can withstand short-term exposure up to 1150 °C. The alloy features good fabricability and weldability, making it suitable for complex, high-temperature structural components. Its corrosion resistance is primarily focused on high-temperature gas environments, while its resistance to strong acids and alkalis at room temperature is lower than that of the C-series alloys. As a result, Hastelloy X is widely used in aero-engine combustion chambers, gas turbine components, rocket engine parts and high-temperature tubes for industrial furnaces.
Hastelloy B:is a nickel–molybdenum alloy series specifically designed for strong reducing environments, offering exceptional resistance to hydrochloric acid across all concentrations, temperatures and operating conditions, including boiling liquid and hydrogen chloride gas. The Hastelloy B series, represented by B-2 and B-3, is specially designed for strong reducing media.Hastelloy B-2 (UNS N10665) contains almost no chromium and provides excellent corrosion resistance to reducing acids such as hydrochloric and sulfuric acids, but is not suitable for strong oxidizing media. Hastelloy B-3 (UNS N10675) features optimized composition with reduced carbon and silicon, delivering improved thermal stability, enhanced resistance to cracking and intergranular corrosion, and more stable long-term performance, including continuous service in 50% sulfuric acid at 120 °C. Due to sensitivity to oxidizing impurities, prolonged exposure to oxidizing environments should be avoided. Typical applications include hydrochloric acid recovery units, coal chemical equipment for high-temperature HCl service, hydrometallurgical leaching tanks and phosphoric acid production evaporators.
Other grades are available upon request.
Chemical Composition (Typical Ranges)
Alloy | Ni (Nickel) | Mo (Molybdenum) | Cr (Chromium) | Fe (Iron) | Co (Cobalt) | C (Carbon) | W (Tungsten) | Others |
Hastelloy C-22 | 56–63 | 13–16 | 20–22 | ≤3.5 | – | ≤0.02 | – | Cu ≤0.5 |
Hastelloy C-276 | 57–63 | 15–17 | 16–17 | ≤4 | – | ≤0.01 | – | – |
Hastelloy C-4 | 54–57 | 15–17 | 17–19 | ≤3 | – | ≤0.02 | – | Fe ≤4 |
Hastelloy X | 47–50 | 8–10 | 21–23 | 18–20 | ≤1 | ≤0.1 | – | Co ≤0.5 |
Hastelloy B-2 | ≥64 | 28–32 | ≤1 | ≤1 | – | ≤0.02 | – | – |
Hastelloy B-3 | 63–65 | 28–33 | ≤1 | ≤1 | – | ≤0.02 | – | – |
Specifications of Hastelloy Wire Mesh
Wire Diameter:0.03 mm – 1.5 mm, customizable for fine filtration or structural support.
Weave Type:Plain, Twill, Dutch (plain/twill) – affects flow, filtration precision, and strength.
Mesh Width & Length:Standard: 1 m, 1.2 m, 1.5 m, max 2–3 m. Rolls or cut-to-size.
Surface Finish:As-drawn, Bright Annealed, Pickled/Cleaned – improves corrosion resistance and stability.
Operating Temperature:–200 °C to 700–1000 °C, depending on alloy grade and environment.
Filtration Rating:Micron to millimeter level, suitable for fine, coarse, and support applications.
Form & Fabrication:Available in rolls, sheets, discs, gaskets, cylinders, filter elements. Custom welding, stamping, forming available.
Key Features of Hastelloy Wire Mesh
Exceptional Corrosion Resistance
Excellent resistance to strong acids, chlorides, and mixed corrosive media, including oxidizing and reducing environments.
High Temperature Stability
Maintains mechanical strength and mesh integrity at elevated temperatures, suitable for continuous high-temperature operation.
Superior Mechanical Strength
High tensile strength and toughness, resistant to deformation and cracking under high pressure and flow conditions.
Precision Filtration Performance
Available in a wide range of wire diameters and mesh counts to achieve accurate and consistent filtration ratings.
Excellent Fabricability
Suitable for cutting, welding, forming, and deep processing into filter elements and assemblies.
Applications of Hastelloy Wire Mesh
Chemical Processing：Used for acid/base filtration, chemical reactors, and catalyst protection. Resists strong acids like HCl, H2SO4, HNO3.
Petrochemical & Oil & Gas：Applied in catalyst baskets, separators, and high-temperature piping. Handles high pressure and corrosive fluids.
Pharmaceutical & Food：Ideal for sterile filtration, fine particle separation, and high-purity processes. Compatible with cleaning and sterilization cycles.
Aerospace & High-Temperature：Used in heat shields, insulation layers, and high-temperature filters. Maintains structural stability under extreme heat.
Electronics & Semiconductor：Used in chemical etching, plating baths, and precision filtration. Offers cleanroom compatibility.
Environmental & Water Treatment：Applied in wastewater filtration, gas scrubbing, and corrosion-prone water treatment. Provides long-term durability.
