ASTM B366 Hastelloy B2 Fittings: Properties, Advantages, and Suppliers
ASTM B366 Hastelloy B2 fittings are highly recognized in industries where superior corrosion resistance and durability are essential. These fittings are manufactured under the ASTM B366 specification, using the nickel-molybdenum alloy Hastelloy B2. Renowned for their excellent performance in challenging environments, these fittings are essential for industries such as chemical processing, oil and gas, petrochemical, and power generation.
At ASC LLP, we specialize in the supply and export of high-quality ASTM B366 Hastelloy B2 fittings. In this article, we will explore the various aspects of these fittings, including their properties, advantages, and applications. Whether you’re curious about what ASTM B366 Hastelloy B2 fittings are or are looking for reliable suppliers, this guide will provide comprehensive insights.
What is ASTM B366 Hastelloy B2 Fittings?
ASTM B366 Hastelloy B2 fittings are produced from Hastelloy B2, a nickel-molybdenum alloy with exceptional resistance to reducing environments like hydrogen chloride gas, sulfuric acid, and phosphoric acid. These fittings are designed under the ASTM B366 specification, which covers wrought nickel, nickel alloy, and nickel-copper alloy fittings, ensuring they meet the rigorous standards for use in extreme conditions.
The primary use of ASTM B366 Hastelloy B2 fittings is in industries where exposure to highly corrosive materials is common. Their excellent resistance to pitting, stress corrosion cracking, and other forms of corrosion makes them a reliable choice for pipelines, reactors, and other critical systems.
Key Properties of ASTM B366 Hastelloy B2 Fittings
Understanding the properties of these fittings is crucial to appreciate their benefits in industrial applications. Here are the main properties of ASTM B366 B2 Hastelloy fittings:
- Corrosion Resistance: One of the standout features of Hastelloy B2 fittings is their resistance to corrosive environments. These fittings provide superior performance in reducing environments, particularly against non-oxidizing acids like sulfuric acid and hydrochloric acid. This makes them a top choice in industries like chemical processing where exposure to harsh chemicals is routine.
- High Thermal Stability: B2 Hastelloy fittings are highly resistant to high-temperature corrosion, maintaining structural integrity even in extreme heat. This feature makes them ideal for applications in industries such as power generation and petrochemicals, where temperature extremes are common.
- Resistance to Stress Corrosion Cracking: B2 Hastelloy fittings exhibit excellent resistance to stress corrosion cracking, making them well-suited for applications that require resilience in stressful or pressure-induced environments. This is especially beneficial in the oil and gas industries.
- Pitting and Crevice Corrosion Resistance: Pitting and crevice corrosion are common forms of localized corrosion that can severely damage fittings in corrosive environments. However, Hastelloy B2 offers superior resistance, ensuring the longevity of fittings in aggressive conditions.
- Weldability and Fabrication: Hastelloy B2 fittings can be easily fabricated and welded, making them versatile for various industrial applications. The fittings maintain their corrosion-resistant properties even after welding, which is crucial for maintaining the integrity of piping systems.
- Tensile Strength: These fittings are known for their high tensile strength, which allows them to withstand mechanical stress and pressure in demanding applications.
Advantages of ASTM B366 B2 Hastelloy Fittings
The exceptional properties of ASTM B366 Hastelloy B2 fittings translate into several advantages:
- Enhanced Durability: The combination of high tensile strength, corrosion resistance, and thermal stability ensures that B2 Hastelloy fittings are highly durable. They can operate efficiently in harsh conditions for extended periods, reducing the need for frequent replacements.
- Cost-Effective in the Long Run: Despite the higher upfront costs of Hastelloy fittings, their durability and resistance to corrosion significantly lower the maintenance and replacement costs over time, making them a cost-effective solution in the long term.
- Versatility in Applications: The versatility of Hastelloy B2 fittings allows them to be used across various industries, including chemical processing, pharmaceuticals, oil and gas, and power generation. Their ability to withstand different corrosive environments makes them ideal for multiple industrial applications.
- Reliable in Extreme Conditions: The ability of these fittings to perform well under high temperatures and pressure makes them reliable in extreme industrial environments. They can handle the demands of high-stress applications without compromising performance or safety.
- Compliance with International Standards: ASTM B366 Hastelloy B2 fittings comply with international standards, ensuring consistent quality and reliability. This makes them a preferred choice for global industries that require materials that meet stringent regulatory requirements.
Schedule and Size Chart
| Size (NPS) | Schedule 10S | Schedule 40S | Schedule 80S | Schedule 160S | Wall Thickness (inches) |
| 1/2″ | 0.083 | 0.109 | 0.147 | 0.187 | 0.083 – 0.187 |
| 3/4″ | 0.083 | 0.113 | 0.154 | 0.218 | 0.083 – 0.218 |
| 1″ | 0.109 | 0.133 | 0.179 | 0.250 | 0.109 – 0.250 |
| 1-1/2″ | 0.109 | 0.145 | 0.200 | 0.281 | 0.109 – 0.281 |
| 2″ | 0.109 | 0.154 | 0.218 | 0.344 | 0.109 – 0.344 |
| 3″ | 0.120 | 0.216 | 0.300 | 0.438 | 0.120 – 0.438 |
| 4″ | 0.120 | 0.237 | 0.337 | 0.531 | 0.120 – 0.531 |
Mechanical Properties Chart
| Property | Value |
| Tensile Strength | 690 MPa (100 ksi) |
| Yield Strength | 310 MPa (45 ksi) |
| Elongation | 40% minimum |
| Hardness | 95 HRB maximum |
| Impact Strength | High, due to nickel-molybdenum composition |
Specifications Chart
| Specification | Details |
| ASTM Standard | ASTM B366 |
| Fitting Type | Butt-weld, socket weld, threaded, seamless and welded fittings |
| Material | Hastelloy B2 (Nickel-Molybdenum Alloy) |
| Size Range | 1/2″ to 48″ (depending on the type of fitting and application) |
| Schedules | SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, XXS |
| End Connections | Plain end, beveled end, threaded end |
| Dimensions | According to ASME B16.9 (for butt-weld fittings), ASME B16.11 (for forged fittings) |
| Form | Elbows, tees, reducers, caps, crosses, stub ends, couplings, unions |
Chemical Composition Chart
| Element | Composition (%) |
| Nickel (Ni) | Balance |
| Molybdenum (Mo) | 26.0 – 30.0 |
| Iron (Fe) | 2.0 max |
| Chromium (Cr) | 1.0 max |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.10 max |
| Phosphorus (P) | 0.04 max |
| Sulfur (S) | 0.03 max |
| Carbon (C) | 0.02 max |
| Cobalt (Co) | 1.0 max |
Physical Properties Chart
| Property | Value |
| Density | 9.22 g/cm³ (0.333 lb/in³) |
| Melting Range | 1330 – 1380 °C (2426 – 2516 °F) |
| Specific Heat Capacity | 427 J/kg-°C |
| Thermal Conductivity | 10.1 W/m·K at 24°C (69.9 Btu·in/hr·ft²·°F) |
| Electrical Resistivity | 1.34 μΩ·m |
| Coefficient of Expansion | 10.9 μm/m·°C (20 – 100°C) |
Application Chart
| Industry | Application |
| Chemical Processing | Used in pipelines, reactors, and equipment where exposure to aggressive chemicals such as sulfuric acid and hydrochloric acid is frequent. |
| Oil and Gas | Applied in pipelines and processing equipment that handle corrosive gases and liquids, ensuring long service life under harsh environmental conditions. |
| Pharmaceuticals | Used in the production of medicines and chemicals that require purity and resistance to corrosion to maintain product quality and equipment integrity. |
| Power Generation | Deployed in systems exposed to high temperatures, pressures, and corrosive gases, particularly in nuclear and fossil fuel power plants. |
| Aerospace | Used in aircraft engines, exhaust systems, and other high-temperature, high-corrosion environments. |
| Pollution Control | Effective in equipment that deals with flue gases, acid production, and other aggressive chemicals involved in pollution control and environmental management. |
ASTM B366 Hastelloy B2 Fittings Exporters and Suppliers
When looking for high-quality ASTM B366 Hastelloy B2 fittings, it is essential to choose a reliable supplier with a proven track record of delivering durable, high-performance products. ASC LLP is a leading exporter and supplier of B2 Hastelloy fittings, offering a wide range of products that meet international quality standards.
As a trusted supplier, we ensure that our fittings are manufactured using the highest quality materials, conforming to ASTM B366 standards. We offer:
- Timely Delivery: We understand the importance of timely delivery, and we ensure that your fittings reach you on time, regardless of your location.
- Custom Solutions: We provide custom fittings tailored to meet the specific requirements of your application.
- Global Export: We supply B2 Hastelloy fittings to industries across the globe, including chemical processing, oil and gas, and power generation.
At ASC LLP, we are committed to supplying high-quality ASTM B366 fittings that meet your exact requirements. Our fittings are designed to deliver long-lasting performance, reducing maintenance costs and improving the efficiency of your operations. Contact us today for more information about our products and how we can support your business with top-quality Hastelloy fittings.
Global Reach
Amardeep Steel Centre boasts a robust global presence and is committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ASTM B366 Hastelloy B2 Fittings. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.
Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.
