Introduction

Hastelloy B-2 Alloy (also Hastelloy B2, Alloy B-2, Nickel Alloy B-2, UNS N10665 Alloy) is a nickel‑molybdenum alloy offering exceptional hydrochloric acid resistance across a wide range of concentrations and temperatures. It conforms to ASTM B333 (pipe), ASTM B622 (seamless tube), ASTM B619 (welded pipe), ASTM B335 (bar), and ASTM B575 (plate/sheet), as well as ASME SB333 and SB575. This nickel molybdenum alloy is specifically designed for reducing acid environments, where it outperforms stainless steels and many high‑nickel alloys.

Key properties of Hastelloy B-2 for hydrochloric acid service:

• Exceptional hydrochloric acid resistance – negligible corrosion rates in pure HCl from dilute to concentrated, at temperatures up to boiling point

• Superior reducing acid resistance – outstanding performance in sulfuric acid (non‑oxidizing), phosphoric acid, and acetic acid

• Excellent resistance to hydrogen chloride – safe for wet and dry HCl gas handling

• Stress corrosion cracking resistance – immune to chloride‑induced SCC

• Pitting and crevice corrosion resistant alloy – no localized attack in halide‑containing reducing acids

• High purity chemical process alloy – suitable for sensitive chemical and pharmaceutical applications

• Nickel molybdenum corrosion resistant alloy – retains excellent corrosion resistance in as‑welded condition (but with strict heat control)

Note: Hastelloy B-2 is highly susceptible to oxidation in the presence of oxidizing species (e.g., ferric ions, dissolved oxygen). It is recommended for strictly reducing environments.

This severe corrosion resistant alloy is available in all product forms: Hastelloy B-2 Plate, Pipe, Tube, Bar, and Forging. Our industrial nickel alloy manufacturer supplies hot rolled plate, cold rolled sheet, seamless/welded pipe, round bar, and forged bar with pickled or polished surfaces, custom sizes, and cut to length. Our product range includes Hastelloy B-2 seamless pipe, welded pipe, plate (6mm, 10mm), sheet 4x8, round bar (50mm), tube, and Hastelloy B-2 forging.

Specifications & Process Options

We provide Hastelloy B-2 Size Chart, Thickness Chart, Weight Chart, and Tube Dimensions – request yours.

Applications

1. Hydrochloric Acid Service & Handling Equipment

• Hastelloy B-2 for hydrochloric acid service – piping, heat exchangers, and reactor linings in hydrochloric acid production, purification, and transfer systems. Exceptional hydrochloric acid resistance extends equipment life far beyond stainless steel or other nickel alloys.

• Hastelloy B-2 for hydrochloric acid production – absorber columns, stripper reboilers, and HCl gas coolers in by‑product HCl recovery (from chlorination processes). Hydrogen chloride resistance prevents dry HCl corrosion.

• Hastelloy B-2 for acid transfer piping – safe, leak‑free transport of concentrated HCl at ambient and elevated temperatures.

2. Acid Storage Tanks & Pickling Systems

• Hastelloy B-2 for acid storage tanks – tanks for hydrochloric acid, sulfuric acid (reducing conditions), and mixed acid streams. Reducing acid resistant alloy ensures long‑term integrity with minimal wall loss.

• Hastelloy B-2 for pickling systems – pickling bath liners, heating coils, and acid recovery systems for steel and stainless steel pickling lines (hydrochloric and mixed acid pickling). Nickel molybdenum corrosion resistant alloy withstands hot HCl.

3. Reactor Vessels & Chemical Processing Equipment

• Hastelloy B-2 for reactor vessels – batch and continuous reactors for specialty chemicals, agrochemicals, and intermediates processed under reducing conditions. High purity chemical process alloy prevents product contamination.

• Hastelloy B-2 for chemical processing equipment – distillation columns, autoclaves, and agitated vessels handling hydrochloric acid, dilute sulfuric acid, and phosphoric acid. Pitting resistant alloy eliminates localized attack at welds.

4. Pharmaceutical Reactors & Acid Transfer Systems

• Hastelloy B-2 for pharmaceutical reactors – API synthesis vessels for chloride‑containing processes where product purity is critical. Stress corrosion cracking resistance prevents sudden failure.

• Hastelloy B-2 for acid handling equipment – acid recirculation loops, pump suction lines, and vent scrubber systems in chemical plants. Crevice corrosion resistant alloy performs well under gaskets and flanges.

5. High Purity & Severe Acid Service

• Hastelloy B-2 for severe acid service – components in HCl alkylation units, isomerization catalysts, and specialty chemical synthesis. Excellent resistance to hydrogen chloride at elevated temperatures.

• Acid resistant nickel alloy – also used in synthetic fiber production, metal chloride purification, and geothermal brine handling (reducing conditions only).

Why Choose Us as Your Hastelloy B-2 Supplier for Hydrochloric Acid?

We are a reliable Hastelloy B-2 supplier, Hastelloy B-2 manufacturer, Alloy B-2 stockist, UNS N10665 supplier, hydrochloric acid resistant alloy specialist, nickel molybdenum alloy supplier, chemical process alloy provider, acid resistant nickel alloy manufacturer, Hastelloy B-2 material supplier, severe corrosion resistant alloy stockist, industrial nickel alloy manufacturer, and China Hastelloy B-2 factory. All products meet ASTM B333 / B622 / B619 / B335 / B575 with mill test certificates, chemical analysis, mechanical property reports, and NDT as required.

What we offer:

• Complete product forms: Plate, Sheet, Pipe, Tube, Bar, Forging

• Plate thickness: 3mm – 50mm (standard and custom)

• Pipe sizes: 1/2″ to 12″ NPS, SCH40, SCH80

• Bar diameters: 6mm – 200mm; forged bar for large diameters

• Condition: Solution annealed as standard (to maintain corrosion resistance)

• Surface finishes: pickled, polished, as‑rolled

• Services: cut to size, precision machining, custom fabrication, forging supply

• Certifications: EN 10204 3.1, PMI, full traceability

• Global shipping: Exporter to hydrochloric acid plants, chemical processors, and pharmaceutical manufacturers worldwide

Contact us for Hastelloy B-2 Size Chart, Thickness Chart, Weight Chart, or a quote on Hastelloy B-2 Pipe SCH40/SCH80, Plate 6mm/10mm, Sheet 4x8, Round Bar 50mm, or custom requirements.

MONO Group is one of Hastelloy B-2 for Hydrochloric Acid and other Superalloy, Nickel alloy, High Temperature Alloy Manufacturer, Supplier, Wholesaler from China, We can supply high quality alloy plate, sheet, round bar, tube, pipes, fittings, flange, and custom parts in accordance with ASTM, ASME, DIN, ISO, GB and other international standards. For inquiries or to request a quote, please freely contact us at info@monokj.com.