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Hastelloy B-3 is a highly specialized nickel-molybdenum alloy engineered for superior resistance to aggressive reducing agents, particularly in harsh chemical environments where standard alloys fail. When processed into precision strip form, Hastelloy B-3 offers a versatile solution for manufacturers requiring both corrosion resistance and mechanical reliability in demanding industrial processes.
Products Description
HASTELLOY is a Nickel-chromium-molybdenum wrought alloy that is considered the most versatile corrosion resistant alloy available.
This alloy is resistant to the formation of grain boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in an as welded condition.Hastelloy Form: Pipe / Tube (welded and seamless), Plate /Sheet,Bar, Wire, Fittings
Wire: 0.01-10mm
Strip: 0.05*5.0-5.0*250mm
Bar: φ4-50mm;Length 2000-5000mm
Pipe: φ6-273mm;δ1-30mm;Length 1000-8000mm
Sheet: δ 0.8-36mm;Width 650-2000mm;Length 800-4500mm
Character
• Ending machinability
• Low at 700℃ has high tensile strength, fatigue strength, creep strength and fracture strength
• Low at 1000℃ has the high oxidation
• Both ends have stable chemical properties at low temperature
• Ending with good welding performance
Physical property
item | HC-276 | C-22 | C-4 | B2 | B3 | N |
C | ≤0.01 | ≤0.015 | ≤0.015 | ≤0.02 | ≤0.01 | 0.04-0.08 |
Mn | ≤1 | ≤0.5 | ≤1 | ≤1 | ≤3 | ≤1 |
Fe | 4-7 | 2-6 | ≤3 | ≤2 | ≤1.5 | ≤5 |
P | ≤0.04 | ≤0.02 | ≤0.04 | ≤0.04 | -- | ≤0.015 |
S | ≤0.03 | ≤0.02 | ≤0.03 | ≤0.03 | -- | ≤0.02 |
Si | ≤0.08 | ≤0.08 | ≤0.08 | ≤0.1 | ≤0.1 | ≤1 |
Ni | rest | rest | rest | rest | ≤65 | rest |
Co | ≤2.5 | ≤2.5 | ≤2 | ≤1 | ≤3 | ≤0.2 |
Ti+Cu | -- | -- | ≤0.7 | -- | ≤0.4 | ≤0.35 |
Al+Ti | -- | -- | -- | -- | ≤0.5 | ≤0.5 |
Cr | 14.5-16.5 | 20-22.5 | 14-18 | ≤1 | ≤1.5 | 6-8 |
Mo | 15-17 | 12.5-14.5 | 14-17 | 26-30 | ≤28.5 | 15-18 |
B | -- | -- | -- | -- | -- | ≤0.01 |
W | 3-4.5 | 2.5-3.5 | -- | -- | ≤3 | ≤0.5 |
V | ≤0.35 | ≤0.35 | -- | 0.2-0.4 | -- | ≤0.5 |
Shape | Size (mm) |
Wire | 0.5-7.50 |
Rod/Bar | 8.0-200 |
Strip | (0.5-2.5)*(5-180) |
Tube/Pipe | Customized |
Sheet/Plate | Customized |
Material Overview
Hastelloy B-3 (UNS N10675) is an evolution of the widely used Hastelloy B-2 alloy, offering enhanced:
Thermal stability
Fabrication characteristics
Resistance to hydrochloric, hydrobromic, sulfuric, and acetic acids
Resistance to stress corrosion cracking and pitting
Its improved metallurgical stability makes Hastelloy B-3 more robust during welding and thermal cycling—critical features for precision strip applications.
Applications in Reducing Chemical Environments
Industries that operate in environments with high concentrations of reducing acids often face material degradation challenges. These include sectors such as:
Chemical processing plants
Pharmaceutical production
Agricultural chemical manufacturing
Pickling and metal etching lines
Specialty chemical storage systems
Hastelloy B-3 strip is commonly used in:
Heat exchanger plates
Bellows and diaphragms
Sealing strips and gaskets
Flexible tubing components
Custom-formed liners and shielding
Meeting the Demands of Modern Industry
Professionals across sectors demand materials that provide:
Exceptional resistance to reducing agents like hydrochloric acid
Mechanical strength in thin gauges
Fabrication ease for forming complex parts
Reliability under cyclical chemical exposure and thermal variation
Hastelloy B-3 precision strip delivers on these requirements by offering:
Consistent dimensional control for precision applications
Enhanced weldability without cracking or intergranular corrosion
Minimal sensitization risk, reducing the chance of performance drop over time
Benefits of Strip Form
Processing Hastelloy B-3 into strip offers advantages such as:
Tight tolerances ideal for automated component manufacturing
High surface quality for sealing and joining needs
Availability in coils or cut-to-length formats for flexible production
Formability and bendability without compromising corrosion resistance
This makes it highly suited for OEMs producing complex chemical-handling equipment, or components used in corrosive system assemblies.
Market Trends and Industry Outlook
With the global push for process safety, longevity, and efficiency, industries are shifting toward nickel-molybdenum alloys for environments where acids, solvents, and aggressive media are present. Hastelloy B-3 strip is increasingly favored in:
Modern chemical synthesis plants
Next-generation energy and resource recovery facilities
High-purity and pharmaceutical-grade production lines
Its superior thermal and corrosion resistance contributes directly to lower maintenance costs and longer equipment lifespan—key metrics for companies pursuing operational excellence.
E-mail: dzx@dlx-alloy.com
Mobile: +8619906119641
Tel: 0086-19906119641
WhatsApp: +86-19906119641
Add: NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu
