ASTM B333 Hastelloy B-2 Plates & Sheets UNS N10665 2.4617 Nickel Molybdenum Alloy Plate

Hastelloy B-2 (UNS N10665, W.Nr 2.4617) is a high-performance nickel-molybdenum solid solution strengthened alloy, specifically developed for extreme reducing corrosion environments. Featuring ultra-low carbon and silicon content, it effectively prevents grain-boundary carbide precipitation, which greatly enhances its weldability and post-weld corrosion resistance—overcoming the key drawbacks of conventional nickel-molybdenum alloys in harsh reducing media.

This alloy is renowned for its exceptional corrosion resistance in reducing environments, particularly in hydrochloric acid of all concentrations and temperatures, as well as sulfuric acid, acetic acid, phosphoric acid, and other aggressive chemical media. It also demonstrates excellent resistance to chloride-induced stress corrosion cracking, pitting, and crevice corrosion, while maintaining stable mechanical properties at continuous service temperatures up to 480°C.

Hastelloy B-2 plates and sheets have good ductility, excellent formability, and weldability, allowing for flexible cutting, bending, and fabrication. With precise dimensional control and uniform surface quality, they are widely used in chemical processing, wet metallurgy, pharmaceutical, petrochemical, and environmental engineering fields. Typical applications include chemical reactor linings, hydrochloric acid storage tank liners, wet metallurgy acid leaching equipment plates, and acid-resistant structural parts.

All our Hastelloy B-2 plates & sheets are produced strictly in accordance with ASTM B333 / ASME SB333 standards, with full raw material traceability. Complete factory test certificates (MTR), EN 10204 3.1/3.2 certificates, and third-party inspection reports are available to meet your quality and certification requirements for global market access.

· Chemical & Petrochemical: Chemical reactor linings, hydrochloric acid storage tank plates, sulfuric acid processing equipment sheets, acid-resistant vessel panels

· Wet Metallurgy: Acid leaching tank liners, electrolytic cell plates, corrosion-resistant structural sheets

· Pharmaceutical & Food: Pharmaceutical intermediate reaction panels, food processing acid-resistant plates

· Environmental Engineering: Wastewater treatment acid-resistant plates, acid-containing flue gas treatment sheets

· Industrial Manufacturing: High-pressure corrosion-resistant structural parts, chemical equipment liners, custom acid-resistant components

· Factory direct supply, no middleman markup, competitive price for bulk orders and customized requirements

· Strict chemical composition control, ultra-low carbon content, no grain-boundary carbide precipitation to ensure corrosion resistance

· Exceptional performance in reducing media (especially hydrochloric acid), fully adapting to harsh working environments

· Multiple sizes, surface finishes and processing options, custom cutting, bending and welding services available

· Complete certification package, fast delivery (7–15 working days for standard specs), professional technical and after-sales support