We are a leading manufacturer, supplier, and exporter of ASTM F467 Hastelloy B2 fasteners in Mumbai, India, offering high-quality bolts, nuts, washers, and custom fasteners at competitive prices. Our products are manufactured in a wide range of standards, specifications, and custom dimensions to meet diverse industrial requirements.
Hastelloy B2 fasteners (UNS N10665 / Alloy 2.4617) are widely used in chemical processing, petrochemical, and marine industries due to their excellent resistance to corrosion, acids, and extreme environments. At Horizon Metal & Alloys, we maintain a strong inventory of premium-grade fasteners known for their durability, strength, and long service life.
With advanced manufacturing facilities and modern machinery, we produce fasteners in compliance with national and international standards. Our experienced and technically skilled team ensures precision, quality, and reliability at every stage of production. We are committed to delivering superior products, timely service, and cost-effective solutions to our customers across India and global markets
Hastelloy B2 fasteners are specially engineered alloy components developed for use in highly corrosive and chemically intensive environments. Due to their high nickel and molybdenum content, these fasteners deliver outstanding performance in conditions where resistance to reducing acids, particularly hydrochloric acid, is essential.
One of the key advantages of Hastelloy B2 is its ability to maintain strength and stability under extreme chemical exposure. It provides strong resistance against common failure issues such as pitting, stress corrosion cracking, and damage in welded areas, making it a dependable material for critical applications.
In practical use, these fasteners are best suited for reducing environments rather than oxidizing conditions. They perform efficiently within controlled temperature ranges, helping retain their mechanical properties and ductility over time. Because of these characteristics, Hastelloy B2 fasteners are widely used in industries like chemical processing, petrochemical plants, and marine operations where durability and corrosion resistance are essential.
Hastelloy B2 fasteners are widely preferred in demanding industrial environments due to their reliable performance and strong resistance to corrosion. Some of the key features include:
Excellent resistance to reducing acids such as hydrochloric and sulfuric acid
High durability and long service life even in harsh chemical conditions
Strong resistance to stress corrosion cracking under fluctuating temperatures
Good weldability and fabrication properties for custom applications
Stable performance in high-temperature environments
Low maintenance requirements, reducing operational costs
Suitable for critical applications where reliability is essential
At Horizon Metal & Alloys, product quality is maintained through a well-defined inspection process rather than relying only on standard procedures. Every batch of Hastelloy B2 fasteners is checked at multiple stages, starting from raw material verification to final dispatch.
We focus on maintaining consistency in dimensions, strength, and surface finish by using controlled manufacturing practices and regular in-process inspections. Our team ensures that each product meets the required technical specifications before it reaches the customer.
Instead of a one-time check, we follow a step-by-step validation approach to minimize defects and maintain uniform quality across all orders. This approach helps us supply fasteners that perform reliably in real industrial conditions.
Standard HASTELLOY B2 Fasteners specifications as per Fasteners manufacturers.
| Material | Hastelloy B2 |
| Specification | IS/BS/ASTM |
| Standards | ASTM B335 |
| Size | 3 mm to 200 mm |
| Length | M02 to M30 |
Each HASTELLOY B2 Fasteners have unique design each of them are used in specific applications. Some of them are mentioned below.
Note that this chart includes only some of the most common sizes of HASTELLOY B2 Bolt. There are many other sizes available as well, and some applications may require custom sizes or special configurations.
| Element | % By Mass |
|---|---|
| Nickel (Ni) | Approximately 66% |
| Molybdenum (Mo) | Approximately 28–30% |
| Chromium (Cr) | Approximately 1% |
| Iron (Fe) | Approximately 2% |
| Tungsten (W) | 3–4.5% |
| Cobalt (Co) | Approximately 1% |
| Manganese (Mn) | 1 max% |
| Vanadium (V) | 0.35 max% |
| Silicon (Si) | 0.08 max% |
| Carbon (C) | 0.01 max% |
| Sulfur (S) | 0.03 max% |
| Phosphorus (P) | 0.04 max% |
| Density | 9.22 g/cm³ (0.333 lb/in³) |
| Melting Point | 1370 °C (2500 °F) |
| Tensile Strength | : 105 ksi (724 MPa) minimum |
| Yield Strength (0.2%Offset) | 45 ksi (310 MPa) minimum |
| Elongation | 40% minimum |
Testing & Inspection
At Horizon Metal & Alloys, Hastelloy B2 fasteners are not released directly after manufacturing. Each production lot is internally reviewed to confirm that it meets the required application standards before delivery.
Mechanical Testing
Rather than relying on theoretical values, we verify actual performance through controlled testing procedures. These checks are carried out to understand how the fasteners behave under working conditions such as load, pressure, and repeated use.
Load-bearing capacity is checked to confirm strength
Resistance to deformation is observed under pressure
Performance under continuous stress cycles is evaluated
Behaviour at elevated temperatures is monitored
Final verification is done before dispatch
In industrial environments where fasteners are exposed to aggressive acids, standard materials often fail over time. Hastelloy B2 fasteners are selected in such cases because they provide stable performance in reducing chemical conditions.
These fasteners are commonly used in systems handling acids and reactive substances, where maintaining joint integrity is critical. Their ability to resist surface damage and structural weakening makes them suitable for long-term use in process equipment.
However, they are generally not recommended for oxidizing environments, as performance may reduce under such conditions. Because of this, proper material selection based on application is essential.
We specialize in manufacturing high-quality fasteners that cater to diverse industries, including oil & gas, petrochemical, marine, power generation, aerospace, and construction.
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