Stainless Steel 310S Flanges: Comprehensive Guide by ASC LLP
Stainless Steel 310S Flanges are critical components in piping systems, known for their excellent performance in high-temperature environments. These flanges, made from 310S stainless steel, are widely used in industries such as petrochemical, power generation, and chemical processing, where resistance to oxidation and corrosion at elevated temperatures is essential. At ASC LLP, we pride ourselves on offering premium quality 310S stainless steel flanges that meet the highest industry standards.
What are 310S Stainless Steel Flanges?
310S stainless steel flanges are fittings used to connect pipes, valves, pumps, and other equipment within a piping system. The 310S grade is a low-carbon version of the 310 stainless steel alloy, offering enhanced weldability while maintaining excellent high-temperature resistance and corrosion resistance. These flanges are particularly suitable for applications requiring prolonged exposure to temperatures up to 1100°C in mildly cyclic conditions.

Properties of 310S Stainless Steel Flanges
Understanding flanges 310S stainless steel properties is crucial for selecting the right material for your application. Below are the key properties that make 310S grade stainless steel flanges an ideal choice:
- High-Temperature Resistance:
310S SS flanges are known for their ability to withstand extreme temperatures. They can operate efficiently in temperatures ranging from -450°F (-268°C) to 2100°F (1150°C). This makes them suitable for furnaces, heat exchangers, and other high-temperature environments. - Oxidation Resistance:
The chromium content in 310S stainless steel provides excellent resistance to oxidation. Even in environments with severe cyclic conditions, these flanges maintain their structural integrity, resisting scaling and maintaining a stable oxide layer. - Corrosion Resistance:
While 310S SS flanges are designed for high-temperature applications, they also offer good corrosion resistance in various atmospheres. They perform well in moderately carburizing environments and resist corrosion in nitriding conditions. - Mechanical Strength:
310S stainless steel flanges exhibit good tensile and yield strength. This ensures that they can handle high-pressure applications without deforming or losing their structural integrity. - Weldability:
One of the key advantages of 310S stainless steel is its excellent weldability. The low carbon content minimizes carbide precipitation during welding, reducing the risk of intergranular corrosion. This makes 310S flanges ideal for use in welded piping systems. - Thermal Conductivity:
The thermal conductivity of 310S stainless steel flanges is lower than that of carbon steel, which allows for better insulation in high-temperature applications, reducing heat loss and improving energy efficiency.
Advantages of 310S Stainless Steel Flanges
Choosing 310S SS flanges for your applications offers several advantages:
- Enhanced Durability: The combination of high-temperature resistance and corrosion resistance ensures that 310S stainless steel flanges have a long service life, even in the most demanding environments.
- Cost-Effective: While 310S stainless steel may have a higher initial cost compared to other materials, its durability and low maintenance requirements make it a cost-effective choice in the long run.
- Versatility: 310S stainless steel flanges are suitable for a wide range of applications, from chemical processing to aerospace, making them a versatile solution for various industries.
- Ease of Fabrication: The excellent weldability and formability of 310S stainless steel make it easier to fabricate and install flanges, reducing downtime and labor costs.
- Environmental Resistance: 310S SS flanges can withstand harsh environments, including high humidity, acidic conditions, and exposure to saltwater, making them ideal for use in coastal and marine applications.


Schedule and Size Chart
Schedule | Nominal Pipe Size (NPS) | Flange Outside Diameter (OD) | Flange Thickness | Bolt Circle Diameter | Number of Bolts | Bolt Size |
SCH 10 | 1/2″ to 24″ | 95 mm to 610 mm | 11.6 mm to 28.6 mm | 60.5 mm to 546 mm | 4 to 16 | 12 mm to 24 mm |
SCH 20 | 1/2″ to 24″ | 95 mm to 610 mm | 12.7 mm to 30.2 mm | 60.5 mm to 546 mm | 4 to 16 | 12 mm to 24 mm |
SCH 40 | 1/2″ to 24″ | 95 mm to 610 mm | 14.3 mm to 31.8 mm | 60.5 mm to 546 mm | 4 to 16 | 12 mm to 24 mm |
SCH 80 | 1/2″ to 24″ | 95 mm to 610 mm | 15.9 mm to 34.9 mm | 60.5 mm to 546 mm | 4 to 16 | 12 mm to 24 mm |
SCH 160 | 1/2″ to 24″ | 95 mm to 610 mm | 17.5 mm to 38.1 mm | 60.5 mm to 546 mm | 4 to 16 | 12 mm to 24 mm |
Mechanical Properties Chart
Property | Value |
Tensile Strength | 515 MPa (74,700 psi) |
Yield Strength | 205 MPa (29,700 psi) |
Elongation | 40% (in 50 mm) |
Hardness | 95 HRB |
Modulus of Elasticity | 200 GPa (29,000 ksi) |
Poisson’s Ratio | 0.30 |
Impact Resistance | 30 J (at room temperature) |
Specifications Chart
Specification | Standard |
ASTM | ASTM A182, ASTM A240, ASTM A276 |
ASME | ASME SA182, ASME SA240, ASME SA276 |
DIN | DIN 1.4845 |
UNS | UNS S31008 |
EN | EN 10222-5 |
BS | BS 1501 |
Chemical Composition Chart
Element | Composition (%) |
Chromium (Cr) | 24.0 – 26.0 |
Nickel (Ni) | 19.0 – 22.0 |
Carbon (C) | ≤ 0.08 |
Manganese (Mn) | ≤ 2.0 |
Silicon (Si) | ≤ 1.5 |
Phosphorus (P) | ≤ 0.045 |
Sulfur (S) | ≤ 0.03 |
Iron (Fe) | Balance |
Physical Properties Chart
Property | Value |
Density | 7.9 g/cm³ |
Melting Point | 1400 – 1450°C (2552 – 2642°F) |
Thermal Conductivity | 14.2 W/m·K (at 100°C) |
Specific Heat Capacity | 500 J/kg·K (at 0-100°C) |
Electrical Resistivity | 0.78 µΩ·m (at 20°C) |
Coefficient of Expansion | 15.9 µm/m·°C (0-100°C) |
Magnetic Permeability | ≤ 1.02 (at 200 Oersted) |
Applications Chart
Industry | Application |
Petrochemical Industry | Used in reactors, heat exchangers, and distillation columns due to high-temperature resistance. |
Power Generation | Applied in boilers, superheaters, and turbine components where extreme heat is present. |
Chemical Processing | Ideal for environments with exposure to corrosive chemicals and high temperatures. |
Aerospace and Defense | Utilized in jet engines, exhaust systems, and other high-temperature components. |
Furnace Manufacturing | Commonly used in furnace parts, such as burner nozzles and radiant tubes. |
Oil and Gas Industry | Suitable for flanges in pipelines that handle high-temperature gases and liquids. |
Marine Industry | Used in coastal and offshore applications due to excellent resistance to saltwater corrosion. |
Benefits of choosing ASC LLP as your suppliers and exporters of 310S Stainless Steel Flanges?
At ASC LLP, we are committed to providing our customers with the highest quality SS 310S flanges. Here’s why you should choose us:
- Quality Assurance:
We adhere to strict quality control measures to ensure that every flange meets the required standards and specifications. - Wide Range of Products:
We offer a comprehensive range of 310S SS flanges in various sizes, types, and pressure ratings to meet your specific needs. - Competitive Pricing:
Our flanges are competitively priced, offering you the best value for your investment without compromising on quality. - Expertise:
With decades of experience in the industry, our team of experts can provide you with the technical support and guidance you need to select the right flanges for your application. - Global Reach:
We supply 310S SS flanges to clients around the world, ensuring timely delivery and excellent customer service.
310S stainless steel flanges are a vital component in high-temperature and corrosive environments. With their superior resistance to oxidation, excellent mechanical properties, and enhanced weldability, they are the material of choice for many industries. At ASC LLP, we are dedicated to providing top-quality 310S stainless steel flanges that meet the stringent demands of your applications. Whether you need standard or custom flanges, we have the expertise and product range to fulfill your requirements. 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 310S 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.