When chemical plants handling aggressive hydrochloric acid sought a material that wouldn’t falter under reducing conditions, the adoption of Hastelloy B2 Sheets marked a major advancement offering superior corrosion resistance alongside mechanical robustness in some of the most challenging industrial settings. Aurico Alloys LLP is proud to supply these sheets to engineers, procurement teams, and fabricators around the world engaged in chemical, oil & gas, marine, pharmaceutical, and power industries.
Table of Contents:
Hastelloy B2 (UNS N10665, ASTM B333) is a nickel-molybdenum alloy devoid of chromium, specifically engineered to resist hydrochloric acid and other highly reducing environments at various temperatures. Its exceptional tolerance to pitting, crevice corrosion, and stress corrosion cracking, paired with excellent weldability and mechanical properties, make it an essential choice for demanding chemical processing applications.
Aurico Alloys LLP offers Hastelloy B2 Sheets with multiple thicknesses and surface finishes, certified to ASTM and ASME standards with full traceability. Our robust inventory and custom-cutting services enable rapid fulfillment for OEM projects, maintenance, and critical manufacturing worldwide.
Choosing Aurico’s Hastelloy B2 Sheets means equipping your facility with a proven material designed for long service life, safety, and strict compliance in the harshest reducing chemical environments.
High-quality Hastelloy B2 Sheets ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Hastelloy B2 (UNS N10665) |
| Standards | ASTM B333, ASME SB333, DIN 17750 |
| Thickness Range | 0.5 mm – 50 mm |
| Width Range | Up to 1500 mm |
| Finishes | Cold rolled, hot rolled, annealed, pickled |
| Forms | Sheets, plates, coils |
| Certification | Comprehensive ASTM and ASME certifications, mill test certificates, RoHS/REACH compliance |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N10665 |
| Werkstoff / EN number | 2.4617 |
| EN designation | NiMo28 |
| Density | 9.22 g/cm3 |
| Plate, sheet and strip specification | ASTM B333 |
Identifiers and physical constants for Hastelloy B-2. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP maintains extensive stock of Hastelloy B2 Sheets in various sizes and finishes, supporting fast global delivery and custom fabrication for chemical, oil & gas, marine, pharmaceutical, and power sectors.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | — | Balance |
| Molybdenum (Mo) | 26.0 | 30.0 |
| Iron (Fe) | — | 2.0 |
| Chromium (Cr) | — | 1.0 |
| Cobalt (Co) | — | 1.00 |
| Manganese (Mn) | — | 1.0 |
| Carbon (C) | — | 0.02 |
| Silicon (Si) | — | 0.10 |
| Phosphorus (P) | — | 0.04 |
| Sulfur (S) | — | 0.03 |
Composition limits for Hastelloy B-2. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength (MPa) | 914 |
| Yield Strength (MPa) | 396 |
| Elongation (%) | 55+ |
| Hardness (HRB) | 160 – 240 |
| Service Temperature (°C) | 540 - 815°C recommended (avoid embrittling phases) |
Applications & Benefits
Why this grade
Hastelloy B2 is a nickel-molybdenum alloy carrying about 28% molybdenum and essentially no chromium. That composition makes it the strongest performer the family offers in reducing acids — hydrochloric at all concentrations up to the boiling point, plus sulphuric, acetic and phosphoric. The same absence of chromium means it must not be put into an oxidising stream, or one carrying ferric or cupric ions. For new construction B3 is the usual specification; B2 is ordered to match existing plant.
- Chemical processing involving hydrochloric and sulfuric acids
- Oil & gas pipelines and equipment in sour gas service conditions
- Marine desalination and saltwater system components
- Pharmaceutical reactors and sterilizers requiring strong corrosion resistance
- Power generation equipment facing aggressive chemical atmospheres
FAQ & Insights
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s Hastelloy B2 Sheets offer outstanding corrosion resistance and mechanical strength vital for chemical, oil & gas, marine, pharmaceutical, and power generation applications exposed to harsh reducing environments. Are you ready to trust Aurico’s certified Hastelloy B2 Sheets for unparalleled performance in your critical industrial projects?