ASTM B366 Hastelloy C4 Fittings – Properties, Applications, and Advantages
ASTM B366 Hastelloy C4 Fittings are widely recognized in industries for their exceptional performance in extreme environments. These high-quality fittings are manufactured from Hastelloy C4, a nickel-chromium-molybdenum alloy known for its resistance to corrosion, oxidation, and high temperatures. The ASTM B366 standard covers wrought alloy fittings, including elbows, tees, reducers, and caps, designed for use in environments where superior corrosion resistance is crucial.
At ASC LLP, we are leading B366 Hastelloy fittings exporters and suppliers, providing industries with fittings that meet stringent standards for quality and durability. In this article, we’ll discuss what is ASTM B366 Hastelloy C4 fittings, their properties, advantages, and applications across various industries.
What is ASTM B366 Hastelloy C4 Fittings?
ASTM B366 Hastelloy C4 fittings refer to fittings made from Hastelloy C4 alloy, which is known for its outstanding resistance to various forms of corrosion. The ASTM B366 standard outlines the specifications for forged or wrought seamless fittings of nickel-based alloys, including Hastelloy C4. These fittings are designed for use in piping systems that handle aggressive chemicals, acids, and other corrosive substances under high temperatures.
C4 Hastelloy fittings are primarily used in industries like chemical processing, pharmaceuticals, petrochemicals, and power generation, where resistance to stress corrosion cracking, oxidation, and localized corrosion is essential.
Properties of ASTM B366 Hastelloy C4 Fittings
The ASTM B366 C4 Hastelloy fittings properties make them a preferred choice for applications in harsh environments. Below are the key characteristics of these fittings:
- Corrosion Resistance: Hastelloy C4 is known for its excellent resistance to a wide range of corrosive environments. These include both oxidizing and reducing conditions, which makes the alloy suitable for environments where other materials would fail. The fittings are particularly effective in resisting corrosion in highly acidic environments, such as hydrochloric and sulfuric acids.
- High-Temperature Stability: Hastelloy ASTM B366 fittings offer outstanding stability and mechanical strength at elevated temperatures. They can withstand temperatures up to 1038°C (1900°F), making them suitable for high-temperature applications in chemical processing plants and other industries that operate under extreme conditions.
- Oxidation Resistance: C4 Hastelloy fittings exhibit excellent oxidation resistance in aggressive atmospheres, even at high temperatures. This property makes them ideal for use in heat-treating equipment and other applications where exposure to oxidizing gases is common.
- Resistance to Stress Corrosion Cracking (SCC): Hastelloy C4 is highly resistant to stress corrosion cracking, a common problem in piping systems exposed to chloride-rich environments. This property ensures the long-term durability and reliability of the fittings in corrosive environments, such as seawater or chemical plants.
- Weldability: One of the key ASTM B366 C4 Hastelloy fittings advantages is their excellent weldability. These fittings can be welded easily without compromising their mechanical properties or corrosion resistance, which is critical for seamless integration into piping systems.
Advantages of ASTM B366 Hastelloy C4 Fittings
The numerous advantages of ASTM B366 C4 Hastelloy fittings make them a top choice in industries that require high performance and reliability. Below are some of the key benefits of using these fittings:
- Superior Corrosion Resistance: Due to the unique composition of Hastelloy C4, the fittings are highly resistant to a wide range of corrosive agents. This includes both oxidizing and reducing media, making them highly versatile for use in environments where multiple forms of corrosion are present.
- Extended Service Life: With their high resistance to stress corrosion cracking and oxidation, ASTM B366 Hastelloy C4 fittings offer a long service life even in the most challenging conditions. This leads to reduced maintenance and replacement costs, improving the overall efficiency of industrial operations.
- Versatility in Applications: The fittings are suitable for use in various industries, including chemical processing, pharmaceuticals, petrochemicals, and power generation. Their ability to withstand harsh conditions makes them a versatile option for industries dealing with corrosive fluids, high pressures, and extreme temperatures.
- Reduced Risk of Failures: The corrosion resistance, weldability, and mechanical strength of Hastelloy fittings ASTM B366 significantly reduce the risk of failures in piping systems. This ensures the safe and efficient transport of hazardous materials in chemical plants and other industrial settings.
- Compatibility with Other Materials: B366 Hastelloy fittings can be easily combined with other materials, such as stainless steel and other nickel-based alloys, without compromising the integrity of the system. This allows for flexibility in design and application, ensuring optimal performance in a variety of industrial environments.
Schedule and Size Chart
| Nominal Pipe Size (NPS) | OD (in) | Schedule 10S (Wall Thickness) | Schedule 40S (Wall Thickness) | Schedule 80S (Wall Thickness) |
| 1/2″ | 0.840 | 0.065 | 0.109 | 0.147 |
| 3/4″ | 1.050 | 0.065 | 0.113 | 0.154 |
| 1″ | 1.315 | 0.065 | 0.133 | 0.179 |
| 1-1/2″ | 1.900 | 0.083 | 0.145 | 0.200 |
| 2″ | 2.375 | 0.083 | 0.154 | 0.218 |
| 3″ | 3.500 | 0.109 | 0.216 | 0.300 |
| 4″ | 4.500 | 0.120 | 0.237 | 0.337 |
| 6″ | 6.625 | 0.134 | 0.280 | 0.432 |
Mechanical Properties Chart
| Property | Value |
| Tensile Strength | 690 MPa (100 ksi) |
| Yield Strength | 310 MPa (45 ksi) |
| Elongation (%) | 40% minimum |
| Hardness (Brinell) | 130-150 HB |
| Modulus of Elasticity | 205 GPa (29.7 x 10^6 psi) |
| Poisson’s Ratio | 0.30 |
Specifications Chart
| Standard | Description |
| ASTM B366 | Standard Specification for Nickel Alloy Fittings |
| ASME SB366 | ASME Boiler & Pressure Vessel Code equivalent |
| ANSI/ASME B16.9 | Factory-made wrought butt-welding fittings |
| ANSI/ASME B16.11 | Forged fittings, including socket weld and threaded |
| MSS-SP-43 | Standard for wrought stainless and nickel alloy butt-welding fittings |
| ANSI/ASME B16.28 | Short radius elbows and returns |
Chemical Composition Chart
| Element | Composition (%) |
| Nickel (Ni) | 65.0 min |
| Chromium (Cr) | 14.0 – 18.0 |
| Molybdenum (Mo) | 14.0 – 17.0 |
| Iron (Fe) | 3.0 max |
| Carbon (C) | 0.015 max |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.08 max |
| Phosphorus (P) | 0.04 max |
| Sulfur (S) | 0.03 max |
Physical Properties Chart
| Property | Value |
| Density | 8.64 g/cm³ |
| Melting Range | 1330–1380°C (2426–2516°F) |
| Thermal Conductivity | 9.8 W/m•K |
| Electrical Resistivity | 1.25 µΩ•m |
| Specific Heat Capacity | 427 J/kg•K |
| Coefficient of Thermal Expansion | 11.2 µm/m•°C |
Application Chart
| Industry | Application |
| Chemical Processing | Handling aggressive chemicals like hydrochloric acid, sulfuric acid, and other corrosive agents |
| Pharmaceuticals | Used in production systems that require corrosion resistance and clean, hygienic conditions |
| Petrochemical | Piping for petrochemical plants that handle corrosive byproducts and require resistance to high temperatures |
| Power Generation | Nuclear and geothermal power plants where extreme heat and corrosive fluids are present |
| Marine | Offshore oil and gas operations that need corrosion-resistant piping systems for seawater exposure |
| Pollution Control | Piping systems in pollution control equipment that handle corrosive flue gases and liquids |
Why Choose ASC LLP for ASTM B366 Hastelloy C4 Fittings?
As a leading B366 Hastelloy fittings exporter and supplier, ASC LLP is committed to providing high-quality fittings that meet the demanding requirements of various industries. Here’s why you should choose us:
- Wide Range of Products: We offer a comprehensive selection of ASTM B366 Hastelloy C4 fittings, including elbows, tees, reducers, and caps, designed to meet your specific needs.
- Competitive Pricing: Our fittings are competitively priced without compromising on quality, ensuring you get the best value for your investment.
- Global Supply Network: With a robust global supply network, we can deliver C4 Hastelloy fittings to customers worldwide, ensuring timely delivery and reliable service.
- Custom Solutions: We understand that every project has unique requirements. That’s why we offer custom solutions to meet your specific needs, whether it’s a large industrial project or a small-scale installation.
- Commitment to Quality: All our products undergo rigorous quality checks to ensure they meet international standards, including ASTM, ASME, and DIN specifications.
ASTM B366 Hastelloy C4 fittings offer unmatched performance in environments where corrosion, high temperatures, and aggressive chemicals are present. Their exceptional properties, including corrosion resistance, high-temperature stability, and stress corrosion cracking resistance, make them a reliable choice for industries like chemical processing, pharmaceuticals, petrochemicals, and power generation.
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 C4 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.
