Chemical & Petrochemical Processing
Corrosion-Resistant Nickel Alloy Solutions for Chemical & Petrochemical Processing
Chemical synthesis, acid recycling, and petrochemical refining environments present some of the most destructive chemical conditions in modern manufacturing. Exposure to aggressive media—such as hot hydrochloric acid, sulfuric acid, nitric acid, wet chlorine gas, and organic solvents—causes rapid wall-thinning, pitting, and catastrophic stress corrosion failure in standard structural steels.
BELNADE engineers and supplies a comprehensive portfolio of high-grade corrosion-resistant alloys (CRAs). Our materials are developed to maintain chemical stability, protect process purity, and extend equipment lifecycles in the world’s most demanding chemical plants.
Primary Application Scenarios & Process Equipment
1. Acid Production & Handling Systems
Hydrochloric & Sulfuric Acid Reactors: Reactor vessels, agitators, heating coils, and vapor lines exposed to concentrated reducing acids.
Acetic Acid & Organic Synthesis: Columns, reboilers, and piping networks handling corrosive organic acids and halide catalysts.
Chlorine & Alkali Processing: Equipment resistant to wet chlorine gas, hypochlorites, and chlorine dioxide bleaching agents.
2. Heat Exchange & Vaporization Systems
Shell-and-Tube Heat Exchangers: Seamless tubing and tube sheets capable of handling multi-acid process streams.
Evaporators & Condensers: Thin-walled precision tubes engineered for optimal thermal transfer and aggressive media resistance.
3. Fluid Handling & Containment
Corrosion-Resistant Pumps & Valves: Cast and forged valve bodies, pump impellers, mechanical seals, and trim components.
Storage Tanks & Pressure Vessels: Clad plates and solid alloy sheets for high-pressure autoclaves and storage units.
Featured BELNADE Alloys for Chemical Processing
Alloy Grade | UNS Designation | Material Characteristic | Ideal Chemical Environment |
Hastelloy C-276 | UNS N10276 | Versatile Ni-Cr-Mo alloy with unmatched resistance to wet chlorine and oxidizing salts. | Waste treatment, acid coolers, chlorination systems. |
Hastelloy C-22 | UNS N06022 | Enhanced pitting and crevice corrosion resistance compared to C-276. | Mixed acid streams, pharmaceutical reactors, bleach plants. |
Hastelloy B-3 | UNS N10675 | Exceptional resistance to pure hydrochloric acid at all concentrations and temperatures. | HCl production, alkylation units, catalyst recovery systems. |
Hastelloy C-2000 | UNS N06200 | Copper-added Ni-Cr-Mo alloy balancing resistance to both oxidizing and reducing media. | Multi-purpose chemical synthesis, heat exchangers. |
Inconel 600 | UNS N06600 | High-nickel alloy resistant to caustic alkalies and high-temperature dry chlorine. | Caustic evaporators, phenol production, nitration reactors. |
Supply Forms & Quality Assurance
BELNADE supplies chemical-grade alloys manufactured in strict compliance with ASTM (B163, B167, B407, B575) and ASME Section VIII pressure vessel codes:
Plates & Sheets: Thickness 0.5mm to 50mm; cold-rolled or hot-rolled with pickled surface.
Pipes & Fittings: Seamless and welded pipes, elbows, reducers, tees, and stub ends.
Flanges & Fasteners: Standard blind, slip-on, and weld-neck flanges; heavy hex bolts and nuts.
Custom Fabricated Components: Welded spools, vessel internals, and custom-drawn wire mesh.
The BELNADE Advantage in Chemical Engineering
Superior Pitting Resistance Equivalent Number (PREN): Carefully balanced metallurgy to maximize resistance to localized attack.
Welding Support & Consumables: We provide matching filler metals (e.g., ERNiCrMo-4, ERNiCrMo-10) to ensure weld seam integrity.
Third-Party Inspection: Complete certification supported by SGS, TUV, or BV inspection agencies.
Secure Your Plant Equipment Against Chemical Attack
Contact BELNADE today to discuss your process media specifications and obtain a competitive quote for high-performance chemical-grade nickel alloys.