Stainless Steel 317L Flanges: High-Performance Solutions for Demanding Applications
Stainless steel is renowned for its strength, corrosion resistance, and versatility in various industrial applications. Among the numerous grades available, 317L stainless steel stands out due to its enhanced properties, making it a preferred choice for manufacturing flanges. At ASC LLP, we pride ourselves on offering high-quality 317L stainless steel flanges that meet the demanding needs of diverse industries. This article delves into the features, advantages, and applications of stainless steel 317L flanges, providing a comprehensive overview for our customers.
What is 317L Stainless Steel Flanges?
317L stainless steel flanges are precision-engineered components made from 317L grade stainless steel, a low-carbon version of the 317 stainless steel alloy. This grade is characterized by its high molybdenum content, which enhances its resistance to pitting, crevice corrosion, and overall corrosion in aggressive environments. The “L” in 317L stands for “low carbon,” which provides improved weldability and minimizes the risk of carbide precipitation during welding, thereby maintaining corrosion resistance in as-welded conditions.
These flanges are designed to connect pipes, valves, pumps, and other equipment to form a pipeline system. They are essential in industries where leak-proof connections are crucial, such as chemical processing, petrochemicals, oil and gas, and marine applications.
317L Stainless Steel Flanges Properties
317L stainless steel flanges possess a range of properties that make them suitable for use in harsh environments. Key properties include:
- Corrosion Resistance: The high molybdenum content in 317L stainless steel enhances its resistance to chloride-induced corrosion, making it ideal for use in marine environments, chemical processing, and other applications where exposure to harsh chemicals is common.
- High-Temperature Stability: 317L stainless steel flanges maintain their strength and corrosion resistance even at elevated temperatures. This makes them suitable for use in heat exchangers, boilers, and other high-temperature applications.
- Excellent Weldability: The low carbon content in 317L stainless steel reduces the risk of carbide precipitation during welding, ensuring that the material retains its corrosion resistance in as-welded conditions. This property is particularly important in industries where flanges are frequently welded to pipes and fittings.
- Mechanical Strength: 317L stainless steel flanges offer superior mechanical strength, making them capable of withstanding high pressure and stress in industrial applications. This durability ensures a long service life and reliable performance.
- Formability and Machinability: The alloy’s balanced composition allows for easy forming and machining, enabling the production of complex flange designs with precise dimensions.
Advantages of 317L Stainless Steel Flanges
317L stainless steel flanges offer several advantages that make them a preferred choice for various industrial applications. Some of the key advantages include:
- Enhanced Corrosion Resistance: The addition of molybdenum in 317L stainless steel provides superior resistance to pitting and crevice corrosion, particularly in environments with high chloride concentrations. This makes 317L stainless steel flanges ideal for use in marine and coastal applications, as well as in chemical processing plants where exposure to corrosive substances is common.
- Versatility in Applications: SS 317L flanges can be used in a wide range of applications, from chemical processing and petrochemical industries to food processing and pharmaceuticals. Their versatility ensures that they can meet the specific needs of various industries.
- Long-Term Cost Efficiency: The durability and corrosion resistance of 317L stainless steel flanges contribute to their long service life, reducing the need for frequent replacements and maintenance. This long-term cost efficiency makes them a cost-effective solution for industries looking to minimize operational costs.
- Improved Weldability: The low carbon content in 317L stainless steel flanges minimizes the risk of carbide precipitation during welding, ensuring that the material retains its corrosion resistance even after welding. This property is particularly important in industries where welded connections are common.
- High-Temperature Performance: 317L SS flanges maintain their mechanical properties and corrosion resistance at high temperatures, making them suitable for use in heat exchangers, boilers, and other high-temperature environments.
Schedule and Size Chart
| Nominal Pipe Size (NPS) | Schedule | Outside Diameter (OD) (inches) | Flange Thickness (T) (inches) | Bolt Circle Diameter (BCD) (inches) | Number of Bolts | Bolt Diameter (inches) |
| 1/2″ | 40, 80 | 3.50 | 0.56 | 2.38 | 4 | 0.50 |
| 1″ | 40, 80 | 4.25 | 0.62 | 3.12 | 4 | 0.50 |
| 2″ | 40, 80, 160 | 6.00 | 0.75 | 4.75 | 4 | 0.62 |
| 4″ | 40, 80, 160 | 9.00 | 0.94 | 7.50 | 8 | 0.75 |
| 6″ | 40, 80, 160 | 11.00 | 1.00 | 9.50 | 8 | 0.88 |
| 8″ | 40, 80, 160 | 13.50 | 1.12 | 11.75 | 8 | 0.88 |
| 12″ | 40, 80, 160 | 16.50 | 1.25 | 14.25 | 12 | 1.00 |
Mechanical Properties Chart
| Property | Value |
| Tensile Strength | 75,000 psi (515 MPa) |
| Yield Strength (0.2% Offset) | 30,000 psi (205 MPa) |
| Elongation | 35% |
| Hardness (Brinell) | 217 HBW |
| Modulus of Elasticity | 28.0 x 10^6 psi (193 GPa) |
| Poisson’s Ratio | 0.27 – 0.30 |
Specifications Chart
| Specification | Standard |
| ASTM/ASME Standard | ASTM A182 / ASME SA182 |
| Dimensional Standards | ASME B16.5, ASME B16.47, EN 1092-1, DIN |
| Pressure Class | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Face Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
Chemical Composition Chart
| Element | Composition (%) |
| Carbon (C) | 0.03 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 0.75 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 11.0 – 15.0 |
| Molybdenum (Mo) | 3.0 – 4.0 |
| Iron (Fe) | Balance |
Physical Properties Chart
| Property | Value |
| Density | 2.81 g/cm³ |
| Melting Point | 477°C (approx.) |
| Thermal Conductivity | 130 W/m·K |
| Electrical Conductivity | 35% IACS |
| Specific Heat Capacity | 900 J/kg·K |
Applications Chart
| Industry | Application |
| Chemical Processing | Used in piping systems handling corrosive chemicals and high-temperature fluids. |
| Oil and Gas | Employed in offshore platforms, refineries, and pipelines for leak-proof connections in corrosive environments. |
| Marine Industry | Ideal for shipbuilding and coastal structures due to excellent resistance to seawater corrosion. |
| Pharmaceuticals | Utilized in sterile fluid transport systems where corrosion resistance and cleanliness are crucial. |
| Food Processing | Applied in food-grade equipment and piping systems, ensuring hygiene and preventing contamination. |
| Power Generation | Used in high-temperature and high-pressure environments like boilers and heat exchangers. |
Why Choose ASC LLP for 317L Stainless Steel Flanges?
At ASC LLP, we are committed to providing our customers with high-quality 317L stainless steel flanges that meet international standards. Our flanges are manufactured using state-of-the-art technology and undergo rigorous quality control checks to ensure they meet the highest levels of performance and reliability.
- Quality Assurance: We adhere to strict quality control measures at every stage of the manufacturing process, from raw material selection to final inspection. Our 317L SS flanges are tested for mechanical properties, corrosion resistance, and dimensional accuracy to ensure they meet the requirements of our customers.
- Custom Solutions: We understand that every industry has unique requirements, and we offer custom solutions to meet the specific needs of our customers. Whether you need flanges with specific dimensions, pressure ratings, or surface finishes, we can provide the right solution for your application.
- Competitive Pricing: At ASC LLP, we offer competitive pricing on all our products, including 317L stainless steel flanges. Our goal is to provide high-quality products at affordable prices, helping our customers achieve cost efficiency without compromising on quality.
- Timely Delivery: We understand the importance of timely delivery in industrial projects. Our efficient supply chain and logistics network ensure that our customers receive their orders on time, every time.
- Expert Support: Our team of experts is always available to provide technical support and guidance to our customers. Whether you need assistance with product selection, installation, or maintenance, we are here to help.
317L SS flanges are an excellent choice for industries that require corrosion-resistant, durable, and high-performance components. With their superior properties and advantages, these flanges offer a reliable solution for a wide range of applications. At ASC LLP, we are proud to offer top-quality 317L SS flanges that meet the highest industry standards. Whether you are in the chemical processing, oil and gas, marine, pharmaceutical, or food processing industry, our 317L stainless steel flanges will meet your needs with unmatched performance and reliability.
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 317L Flanges. 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.
