Stainless Steel 310H Flanges
ASC LLP is proud to offer a premium range of stainless steel 310H flanges designed to meet the highest standards of quality and durability. Our flanges are engineered to perform exceptionally well in high-temperature environments, making them an ideal choice for industries that demand robust and reliable components.
What is 310H Stainless Steel Flanges?
310H stainless steel flanges are a type of flange made from 310H stainless steel, an alloy known for its superior heat resistance and high chromium and nickel content. This particular grade, 310H, is specifically designed to withstand high temperatures, making it suitable for applications that involve extreme heat. The “H” in 310H indicates a higher carbon content compared to the standard 310 grade, which enhances its creep resistance and makes it more stable at elevated temperatures.

Properties of 310H Stainless Steel Flanges
310H stainless steel flanges are distinguished by several key properties that make them highly desirable in various industrial applications:
1. High Temperature Resistance: 310H stainless steel flanges are renowned for their ability to withstand extremely high temperatures. They maintain their structural integrity and resist scaling even at temperatures as high as 1100°C (2012°F). This makes them an ideal choice for applications such as furnaces, heat exchangers, and kilns.
2. Corrosion Resistance: These flanges exhibit excellent corrosion resistance, particularly in environments that are prone to oxidation and sulfidation. The high chromium content in the alloy provides a robust defense against corrosive elements, ensuring long-lasting performance in harsh conditions.
3. Superior Creep Resistance: The higher carbon content in 310H stainless steel enhances its creep resistance, which is the ability of the material to resist deformation under mechanical stress over extended periods. This property is crucial for applications that involve continuous exposure to high temperatures and pressures.
4. Good Weldability: 310H stainless steel flanges offer good weldability, allowing for easy fabrication and installation. This property is particularly important in industries where custom flange designs are required to fit specific systems and configurations.
5. Strength at Elevated Temperatures: Even at elevated temperatures, 310H stainless steel maintains its strength and toughness. This ensures that the flanges can withstand mechanical stress and continue to perform reliably in demanding environments.
6. Oxidation Resistance: The high chromium content in 310H stainless steel provides excellent oxidation resistance. This property prevents the formation of scales and other surface defects that could compromise the integrity of the flange.
Advantages of 310H Stainless Steel Flanges
Using 310H stainless steel flanges offers numerous advantages, making them a preferred choice in various industrial sectors:
1. Extended Service Life: Thanks to their high resistance to heat, corrosion, and oxidation, 310H stainless steel flanges offer an extended service life compared to other materials. This results in lower maintenance costs and fewer replacements over time, making them a cost-effective solution for long-term projects.
2. Versatility: 310H stainless steel flanges are versatile and can be used in a wide range of applications. Their ability to perform well in both oxidizing and reducing environments makes them suitable for use in industries such as petrochemicals, power generation, and aerospace.
3. Reliability in Extreme Conditions: These flanges are designed to withstand extreme conditions, including high temperatures, high pressures, and corrosive environments. This reliability ensures that critical systems remain operational, minimizing the risk of downtime and associated costs.
4. Ease of Fabrication: 310H stainless steel flanges are easy to fabricate and install. Their good weldability allows for custom configurations, making them adaptable to specific project requirements. This flexibility is particularly beneficial in industries where precision and custom designs are essential.
5. Compliance with Industry Standards: At ASC LLP, our 310H stainless steel flanges are manufactured in compliance with stringent industry standards, ensuring that they meet the highest quality benchmarks. This adherence to standards guarantees the safety and reliability of the flanges in critical applications.
6. Environmental Resistance: The excellent resistance to scaling and corrosion ensures that 310H stainless steel flanges perform reliably in environments that degrade lesser materials. This resistance is particularly valuable in chemical processing plants and other industrial settings where exposure to harsh chemicals and high temperatures is common.


Schedule and Size Chart
Schedule | Nominal Pipe Size (NPS) | Outside Diameter (OD) | Flange Thickness | Bolt Circle Diameter | Number of Bolts | Bolt Size |
SCH 10 | 1/2″ to 24″ | 21.34mm to 610mm | 11.18mm to 48.26mm | 34.93mm to 711.2mm | 4 to 24 | M12 to M30 |
SCH 20 | 1/2″ to 24″ | 21.34mm to 610mm | 14.27mm to 50.80mm | 34.93mm to 711.2mm | 4 to 24 | M12 to M30 |
SCH 40 | 1/2″ to 24″ | 21.34mm to 610mm | 15.88mm to 52.38mm | 34.93mm to 711.2mm | 4 to 24 | M12 to M30 |
SCH 80 | 1/2″ to 24″ | 21.34mm to 610mm | 17.48mm to 57.15mm | 34.93mm to 711.2mm | 4 to 24 | M12 to M30 |
SCH 160 | 1/2″ to 24″ | 21.34mm to 610mm | 19.05mm to 59.54mm | 34.93mm to 711.2mm | 4 to 24 | M12 to M30 |
XXS | 1/2″ to 24″ | 21.34mm to 610mm | 21.34mm to 63.50mm | 34.93mm to 711.2mm | 4 to 24 | M12 to M30 |
Mechanical Properties Chart
Property | Value |
Tensile Strength (MPa) | 515 MPa (74,700 psi) |
Yield Strength (0.2% Offset) | 205 MPa (29,700 psi) |
Elongation (%) | 40% |
Hardness (Brinell) | 217 HB |
Modulus of Elasticity (GPa) | 200 GPa (29,000 ksi) |
Poisson’s Ratio | 0.30 |
Specifications Chart
Specification | Standard |
ASTM/ASME | ASTM A182 / ASME SA182 |
ANSI B16.5 | Pipe Flanges and Flanged Fittings |
ANSI B16.47 | Large Diameter Steel Flanges |
MSS SP-44 | Steel Pipeline Flanges |
DIN | Various standards for DIN flanges |
EN | EN 1092-1 European Standard |
Pressure Rating | Class 150 to Class 2500 |
Chemical Composition Chart
Element | Composition (%) |
Carbon (C) | 0.04 – 0.10 |
Chromium (Cr) | 24.0 – 26.0 |
Nickel (Ni) | 19.0 – 22.0 |
Manganese (Mn) | 2.0 max |
Silicon (Si) | 1.5 max |
Phosphorus (P) | 0.045 max |
Sulfur (S) | 0.030 max |
Iron (Fe) | Balance |
Physical Properties Chart
Property | Value |
Density | 7.9 g/cm³ (0.285 lb/in³) |
Melting Point | 1400°C – 1425°C (2550°F – 2600°F) |
Thermal Conductivity | 14.2 W/m·K (9.8 BTU/hr·ft·°F) at 100°C |
Specific Heat Capacity | 500 J/kg·K (0.12 BTU/lb·°F) at 20°C |
Electrical Resistivity | 0.74 µΩ·m at 20°C |
Coefficient of Expansion | 15.9 µm/m·°C (8.8 x 10^-6 in/in·°F) |
Application Chart
Industry | Application |
Petrochemical | Heat exchangers, reactors, distillation columns, piping systems |
Power Generation | Boilers, turbines, exhaust systems |
Chemical Processing | Reactors, piping systems, heat exchangers |
Aerospace | Exhaust systems, engine components |
Furnace & Kiln Manufacturing | High-temperature furnaces, kilns, combustion chambers |
Marine | Offshore platforms, shipbuilding, seawater systems |
Automotive | Exhaust manifolds, turbochargers |
Oil & Gas | Refining units, high-temperature piping |
Why Choose ASC LLP?
At ASC LLP, we are committed to providing our customers with the highest quality 310H stainless steel flanges. Here’s why you should choose us:
1. Uncompromising Quality: Our 310H stainless steel flanges are manufactured to the highest standards, ensuring superior performance and reliability. We source our materials from trusted suppliers and employ stringent quality control measures throughout the manufacturing process.
2. Expertise and Experience: With decades of experience in the steel industry, we have the expertise to meet the most demanding project requirements. Our knowledgeable team can provide guidance on the best flange solutions for your specific application.
3. Custom Solutions: We understand that every project is unique. That’s why we offer custom flange solutions tailored to your exact specifications. Whether you need a standard flange or a custom-designed component, we have the capabilities to deliver.
4. Global Reach: As a leading supplier of 310H stainless steel flanges, we serve customers around the world. Our global reach allows us to provide timely delivery and support, no matter where your project is located.
5. Competitive Pricing: We offer competitive pricing without compromising on quality. Our efficient manufacturing processes and strong supplier relationships enable us to provide cost-effective solutions that meet your budget.
6. Comprehensive Support: From initial consultation to after-sales support, we are here to assist you at every stage of your project. Our commitment to customer satisfaction is reflected in our dedication to providing comprehensive support and service.
310H stainless steel flanges are an excellent choice for applications that require high-temperature resistance, corrosion resistance, and durability. Their unique properties make them suitable for a wide range of industries, including petrochemicals, power generation, aerospace, and more.
At ASC LLP, we are proud to offer high-quality 310H stainless steel flanges that meet the highest industry standards. With our expertise, custom solutions, and commitment to quality, we are your trusted partner for all your flange needs.
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 310H 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.