Stainless Steel 446 Fittings: Properties, Advantages, and Applications
Stainless Steel 446 Fittings are renowned for their exceptional resistance to corrosion, oxidation, and heat. As part of the ferritic stainless steel family, these fittings offer outstanding durability in environments exposed to high temperatures and harsh conditions. Amardeep Steel Centre LLP is a leading supplier of 446 stainless steel fittings, providing reliable solutions for various industrial applications.
What is 446 Stainless Steel Fittings?
446 stainless steel fittings are high-chromium ferritic stainless steel components designed to connect, change direction, or control the flow within piping systems. They contain approximately 25% chromium, which significantly enhances their corrosion resistance, particularly against oxidation and sulfuric environments. Unlike austenitic grades, 446 stainless steel fittings maintain excellent structural stability in high-temperature applications, making them ideal for industries such as petrochemical, power generation, and marine.
Properties of 446 Stainless Steel Fittings
Understanding the properties of 446 stainless steel fittings is crucial to appreciating their performance in various applications:
- High Chromium Content: With a chromium content of around 25%, these fittings offer superior resistance to oxidation and corrosion, even in high-temperature conditions.
- Ferritic Microstructure: The ferritic structure of 446 stainless steel provides good mechanical strength and stress resistance, making it suitable for environments exposed to thermal cycling.
- Heat Resistance: 446 stainless steel fittings can withstand temperatures up to 1100°C (2012°F) without significant degradation. This makes them ideal for applications involving extreme heat, such as furnace components and heat exchangers.
- Corrosion Resistance: These fittings exhibit excellent resistance to hot gases, molten salts, and acidic environments, ensuring longevity and reliability in challenging conditions.
- Magnetic Properties: Due to their ferritic nature, 446 stainless steel fittings are magnetic, which is beneficial in certain industrial applications requiring magnetic separation or interaction.
- Tensile Strength: The fittings offer moderate tensile strength, sufficient for most industrial applications without the need for additional reinforcement.
- Low Carbon Content: The reduced carbon levels help in minimizing carbide precipitation, enhancing corrosion resistance in high-temperature settings.
Advantages of 446 Stainless Steel Fittings
Stainless steel 446 fittings offer numerous advantages, making them a preferred choice for various industrial sectors:
- Superior Oxidation Resistance: The high chromium content provides exceptional resistance to oxidation, making these fittings suitable for high-temperature applications where other grades might fail.
- Cost-Effective Solution: Compared to other high-alloy stainless steels, 446 fittings offer a more cost-effective solution without compromising on performance, especially in harsh environments.
- Durability and Long Service Life: With excellent resistance to scaling and corrosion, these fittings ensure long service life, reducing maintenance and replacement costs.
- High-Temperature Strength: The ability to maintain mechanical properties at elevated temperatures allows these fittings to perform well in heat-intensive applications such as heat treatment furnaces.
- Resistance to Sulfidation: 446 stainless steel fittings are highly resistant to sulfidation, making them ideal for petrochemical and refinery applications where sulfur-containing gases are prevalent.
- Low Thermal Expansion: The fittings exhibit low thermal expansion rates, which reduces the risk of thermal fatigue and cracking during temperature fluctuations.
- Ease of Fabrication and Installation: Despite their strength, 446 stainless steel fittings are relatively easy to fabricate and install, allowing for efficient project completion.
Schedule and Size Chart
| Schedule Number | Nominal Pipe Size (NPS) | Wall Thickness (inches) |
| SCH 10 | 1/8″ to 24″ | 0.049 to 0.406 |
| SCH 20 | 1/8″ to 24″ | 0.065 to 0.500 |
| SCH 40 | 1/8″ to 24″ | 0.109 to 0.635 |
| SCH 80 | 1/8″ to 24″ | 0.147 to 0.875 |
| SCH 160 | 1/8″ to 24″ | 0.188 to 1.406 |
| SCH XXS | 1/8″ to 24″ | 0.273 to 1.875 |
Mechanical Properties Chart
| Property | Value |
| Tensile Strength | 485 MPa (70,300 psi) |
| Yield Strength | 275 MPa (39,900 psi) |
| Elongation | 20% |
| Hardness | 223 HB (Brinell Hardness) |
| Modulus of Elasticity | 200 GPa (29,000 ksi) |
| Impact Resistance | Moderate |
Specifications Chart
| Standard | Specification |
| ASTM | A182, A403, A815 |
| ASME | B16.9, B16.11, B16.5 |
| DIN | 2605, 2615, 2617 |
| ANSI | B16.9, B16.11 |
| MSS SP | 43, 75, 83 |
Chemical Composition Chart
| Element | Composition (%) |
| Carbon (C) | 0.20 max |
| Manganese (Mn) | 1.50 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 23.0 – 27.0 |
| Nickel (Ni) | 0.50 max |
| Phosphorus (P) | 0.04 max |
| Sulfur (S) | 0.03 max |
| Nitrogen (N) | 0.25 max |
| Iron (Fe) | Balance |
Physical Properties Chart
| Property | Value |
| Density | 7.75 g/cm³ (0.280 lb/in³) |
| Melting Point | 1510°C (2750°F) |
| Thermal Conductivity | 25 W/m·K at 20°C |
| Electrical Resistivity | 0.80 µΩ·m at 20°C |
| Specific Heat Capacity | 460 J/kg·K |
| Coefficient of Thermal Expansion | 10.5 µm/m·K (20-100°C) |
Application Chart
| Industry | Applications |
| Petrochemical | Heat exchangers, piping systems, high-temperature gas handling |
| Power Generation | Boiler systems, flue gas desulfurization units, turbine parts |
| Marine | Saltwater piping, heat-resistant components |
| Chemical Processing | Acidic environment handling, reactors, and process vessels |
| Furnace Components | Burners, radiant tubes, heat shields |
| Cement & Steel Mills | Kilns, exhaust systems, high-temperature conveyors |
Benefits in Choosing us as your exporters for Stainless Steel 4446 Fittings?
Amardeep Steel Centre LLP is a trusted name in the supply of high-quality stainless steel fittings, including the robust 446 grade. Our commitment to quality, customer satisfaction, and technical expertise ensures that you receive products that meet the highest standards.
- Extensive Inventory: We maintain a comprehensive inventory of 446 SS fittings, ensuring quick and efficient delivery to meet project timelines.
- Quality Assurance: Our products undergo stringent quality checks to ensure they meet international standards, including ASTM and ASME specifications.
- Customized Solutions: We offer customization options to meet specific project requirements, providing tailored solutions that enhance performance and efficiency.
- Expert Technical Support: Our team of experts provides technical support and guidance to help you choose the right fittings for your application, ensuring optimal performance.
- Competitive Pricing: We offer competitive pricing without compromising on quality, making us a preferred choice for industries worldwide.
SS 446 fittings are an excellent choice for applications requiring superior resistance to high temperatures, oxidation, and corrosive environments. Their unique properties, including high chromium content and ferritic microstructure, make them a durable and cost-effective solution for various industrial sectors. With Amardeep Steel Centre LLP, you can trust that you are receiving top-quality 446 SS fittings that meet your exact needs. Contact us today to learn more about our products and how we can support your next project.
Global Reach
Amardeep Steel Centre boasts a robust global presence, 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 Stainless Steel 446 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.
