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Jai Hind Metal is a trusted manufacturer and supplier of Hastelloy B3 Flanges, offering corrosion-resistant piping components for demanding industrial applications. Our flanges are supplied in various sizes, pressure ratings, dimensions, and facing types according to customer specifications and applicable standards. We focus on material quality, dimensional accuracy, reliable workmanship, and thorough inspection before dispatch. Proper packaging and protective handling help maintain product quality during transportation. Material test certificates, third-party inspection, and customized packaging can also be arranged upon request to meet specific project requirements.
Precisely manufactured metal products meeting demanding industrial standards.
Consistent quality, reliable performance, and strict inspection at every stage.
Available in customized sizes, grades, thicknesses, and specifications.
Efficient processing, secure packaging, and dependable delivery worldwide.
Hastelloy B3 Flanges are manufactured from a nickel-molybdenum alloy known for its excellent resistance to hydrochloric acid and other reducing chemical environments. Available in various types, sizes, pressure classes, dimensions, and facing configurations, these flanges can be supplied according to specific piping system requirements. Their high nickel and molybdenum content supports strong resistance to corrosion, pitting, and stress-corrosion cracking in suitable service conditions. With their combination of corrosion resistance, mechanical strength, durability, and reliable performance, Hastelloy B3 Flanges are suitable for chemical processing, pharmaceutical, petrochemical, acid handling, and other specialized industrial applications where resistance to aggressive reducing acids is essential.
In the annealed condition, Hastelloy B3 Flanges offer excellent resistance to hydrochloric acid and other reducing chemical environments, making them suitable for demanding industrial applications. They are commonly used in chemical processing plants, acid handling systems, pharmaceutical facilities, petrochemical operations, and process piping where exposure to aggressive reducing acids is a concern. The alloy’s high nickel and molybdenum content contributes to its corrosion resistance and mechanical reliability under suitable operating conditions. With a combination of corrosion resistance, strength, durability, and dependable performance, Hastelloy B3 Flanges are suitable for connecting pipes, valves, pumps, vessels, and other industrial equipment in applications requiring reliable service in corrosive environments. Material selection should consider acid concentration, temperature, and the specific process conditions.
Hastelloy B3 Flanges are manufactured from a nickel-molybdenum alloy specifically developed to provide excellent resistance to hydrochloric acid and other reducing chemical environments. Nickel serves as the primary base of the alloy, while molybdenum plays a key role in enhancing corrosion resistance under aggressive process conditions. Its carefully controlled composition helps deliver a combination of corrosion resistance, mechanical strength, toughness, and durability. These properties make Hastelloy B3 Flanges suitable for demanding industrial applications involving acid handling, chemical processing, and corrosive process media. For reliable service, the appropriate flange grade should be selected according to the chemical concentration, operating temperature, and specific conditions of the application.
Specification | Details |
|---|---|
Product Name | Hastelloy B3 Flanges |
Material Grade | Hastelloy B3 |
UNS Number | N10675 |
Werkstoff Number | 2.4600 |
Alloy Type | Nickel-Molybdenum Alloy |
Manufacturing Standard | ASTM B564 / ASME SB564 |
Dimensional Standard | ASME B16.5 or ASME B16.47, as applicable |
Flange Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint |
Facing Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
Nominal Pipe Size | As per applicable dimensional standard and order |
Pressure Class | As specified by the applicable flange standard and design conditions |
Manufacturing Process | Forged, machined, and finished |
Supply Condition | Solution-treated or as specified by the applicable material standard |
Surface Finish | Standard machined finish or as agreed |
Inspection | Dimensional, visual, and material verification as specified |
Certification | Material Test Certificate (MTC), subject to order requirements |
Packaging | Protective packaging for domestic and export shipments |
Element | Chemical Symbol | Composition (%) |
|---|---|---|
Nickel | Ni | 65.00 min. |
Molybdenum | Mo | 27.00–32.00 |
Chromium | Cr | 1.00–3.00 |
Iron | Fe | 1.00–3.00 |
Cobalt | Co | 3.00 max. |
Tungsten | W | 3.00 max. |
Manganese | Mn | 3.00 max. |
Aluminum | Al | 0.50 max. |
Titanium | Ti | 0.20 max. |
Silicon | Si | 0.10 max. |
Carbon | C | 0.010 max. |
Phosphorus | P | 0.030 max. |
Sulfur | S | 0.010 max. |
Vanadium | V | 0.20 max. |
Copper | Cu | 0.20 max. |
Niobium + Tantalum | Nb + Ta | 0.20 max. |
Property | Typical Value |
|---|---|
Material Grade | Hastelloy B3 |
UNS Number | N10675 |
Werkstoff Number | 2.4600 |
Product Form | Forged Flanges |
Supply Condition | Annealed / Solution-Treated, as specified |
Ultimate Tensile Strength | 760–860 MPa |
Yield Strength (0.2% Offset) | 350–425 MPa |
Elongation | Approximately 40–57% |
Hardness | Approximately 95 HRBW for typical plate data |
Density | 9.22 g/cm³ |
Modulus of Elasticity | 216 GPa |
Modulus of Rigidity | 83 GPa |
Melting Range | Approximately 1370–1418°C |
Hastelloy B3 Flanges can be supplied in suitable construction types according to flange design, dimensions, application requirements, and customer specifications. These flanges are manufactured to meet applicable material and dimensional standards for reliable fitment in industrial piping and chemical processing systems. Forged Hastelloy B3 Flanges may be specified to ASTM B564, while dimensional requirements can follow ASME B16.5 for standard pipe flanges and ASME B16.47 for applicable large-diameter flanges. The relevant standards should be confirmed for the selected material, flange type, pressure class, and project requirements to support dimensional accuracy, material conformity, and dependable piping connections.






We supply Hastelloy B3 Flanges in accordance with recognized international standards, including DIN, ISO, JIS, and ANSI, to meet the needs of diverse industrial piping and chemical processing systems. Our flanges are available in various sizes, dimensions, pressure classes, facing types, and configurations to suit different installation and operating requirements. At Jai Hind Metal, we emphasize material quality, dimensional precision, reliable workmanship, and consistent product performance while meeting applicable standards and customer specifications. Project-specific drawings, inspection requirements, product markings, and customized manufacturing details can also be accommodated where required. For product information, technical specifications, or customized requirements, email us at info@jaihindmetal.com.
Hastelloy B3 Flanges are used to establish secure connections between pipes, valves, pumps, vessels, and other equipment in industrial piping and chemical processing systems. Their excellent resistance to hydrochloric acid and other reducing chemical environments makes them suitable for applications involving aggressive process media and corrosive operating conditions. These flanges are commonly used in chemical processing plants, acid production facilities, pharmaceutical manufacturing, petrochemical operations, and industrial process equipment, particularly where resistance to reducing acids is essential. Their combination of corrosion resistance, mechanical reliability, and durability makes Hastelloy B3 Flanges a suitable choice for specialized piping connections requiring dependable performance. Proper material selection should account for the chemical concentration, operating temperature, and specific service environment.
Looking for high-quality industrial products manufactured to your specific requirements? Contact our team for product details, customized solutions, pricing, and timely delivery.
Email: info@jaihindmetal.com
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