Stainless Steel 316H Flanges: Superior Strength and Versatility
Welcome to ASC LLP, where we specialize in high-quality stainless steel solutions tailored to your industrial needs. Today, we are proud to present our comprehensive guide to stainless steel 316H flanges—a premium product designed to offer exceptional performance in demanding environments.
What is 316H Stainless Steel Flanges?
316H stainless steel flanges are advanced, high-grade components manufactured from 316H stainless steel. This alloy is known for its superior resistance to corrosion, high-temperature stability, and excellent mechanical properties. The “H” in 316H stands for “high carbon,” indicating that this variant has a higher carbon content than the standard 316 grade, which enhances its strength at elevated temperatures.
Flanges are crucial components used to join pipes, valves, and other equipment in various industrial applications. Stainless steel 316H flanges are specifically designed for high-temperature environments, making them ideal for use in industries such as petrochemical, chemical processing, marine, and power generation.

Properties of 316H Stainless Steel Flanges
316H stainless steel flanges offer several notable properties that make them a preferred choice for many industrial applications:
- High Temperature Resistance: 316H stainless steel can withstand temperatures up to 1500°F (815°C), making it suitable for high-temperature applications where standard stainless steels might fail.
- Corrosion Resistance: This grade of stainless steel exhibits excellent resistance to chloride-induced corrosion, pitting, and crevice corrosion, ensuring longevity and reliability in harsh environments.
- Strength and Durability: 316H stainless steel flanges are known for their high tensile and yield strength, providing robust performance under mechanical stress and temperature variations.
- Fabrication Flexibility: The alloy’s properties make it easy to fabricate and weld, allowing for the production of flanges with complex designs and dimensions.
Advantages of 316H Stainless Steel Flanges
Choosing 316H stainless steel flanges from ASC LLP comes with several distinct advantages:
- Enhanced Performance: The high carbon content in 316H stainless steel enhances its strength and resistance to deformation, ensuring that the flanges maintain their integrity even under extreme conditions.
- Extended Service Life: Due to their exceptional resistance to corrosion and high temperatures, 316H stainless steel flanges have a longer service life compared to other materials, reducing the need for frequent replacements and maintenance.
- Versatility: These flanges are suitable for a wide range of applications, including those involving high pressures and temperatures, making them versatile components in various industrial systems.
- Cost-Effectiveness: While 316H stainless steel flanges may have a higher initial cost compared to other materials, their durability and longevity provide cost savings over time by reducing the need for replacements and maintenance.


Schedule and Size Chart
Size (Inches) | Schedule | Nominal Pipe Size (NPS) | Dimensions (mm) |
1/2 | SCH 40 | 1/2 NPS | 73 x 50 x 5.5 |
1 | SCH 40 | 1 NPS | 108 x 70 x 6.5 |
1 1/2 | SCH 40 | 1 1/2 NPS | 141 x 85 x 7.5 |
2 | SCH 40 | 2 NPS | 168 x 100 x 8 |
2 1/2 | SCH 40 | 2 1/2 NPS | 219 x 115 x 9 |
3 | SCH 40 | 3 NPS | 273 x 140 x 10 |
4 | SCH 40 | 4 NPS | 325 x 150 x 11 |
6 | SCH 40 | 6 NPS | 438 x 190 x 13 |
8 | SCH 40 | 8 NPS | 546 x 240 x 16 |
Mechanical Properties Chart
Property | Value |
Yield Strength | 205 MPa (30,000 psi) |
Tensile Strength | 515 MPa (75,000 psi) |
Elongation | 40% (min) |
Hardness (Rockwell B) | 85 HRB |
Modulus of Elasticity | 193 GPa (28,000 ksi) |
Thermal Conductivity | 16.2 W/m·K |
Specifications Chart
Specification | Details |
Standard | ASTM A182, ASME SA182 |
Material Grade | 316H |
Flange Type | Slip-On, Weld Neck, Blind, Threaded |
Pressure Rating | 150#, 300#, 600# |
Manufacturing Process | Forged, Machined |
Chemical Composition Chart
Element | Composition (wt%) |
Chromium (Cr) | 16.0 – 18.0% |
Nickel (Ni) | 10.0 – 14.0% |
Molybdenum (Mo) | 2.0 – 3.0% |
Carbon (C) | 0.04 – 0.10% |
Manganese (Mn) | 2.0% max |
Silicon (Si) | 1.0% max |
Phosphorus (P) | 0.045% max |
Sulfur (S) | 0.030% max |
Iron (Fe) | Balance |
Physical Properties Chart
Property | Value |
Density | 8.0 g/cm³ (0.29 lb/in³) |
Melting Point | 1375°C (2500°F) |
Thermal Expansion | 16.0 x 10⁻⁶ /°C (8.9 x 10⁻⁶ /°F) |
Electrical Resistivity | 0.72 µΩ·cm |
Application Chart
Application | Details |
Chemical Processing | Used in reactors and heat exchangers for handling corrosive chemicals. |
Marine Industry | Ideal for offshore platforms and shipbuilding due to corrosion resistance in seawater. |
Oil and Gas | Employed in pipelines, valves, and fittings for exploration and production. |
Food and Beverage | Utilized in sanitary applications where hygiene and corrosion resistance are essential. |
Pharmaceuticals | Applied in processing equipment and storage tanks for maintaining purity. |
316H Stainless Steel Flanges Price
The price of 316H stainless steel flanges varies based on factors such as size, thickness, and quantity. At ASC LLP, we offer competitive pricing without compromising on quality. Our flanges are sourced from trusted manufacturers and are subject to rigorous quality control processes to ensure they meet industry standards.
For the most accurate and up-to-date pricing information, please contact our sales team. We are happy to provide quotes tailored to your specific needs and requirements.
Why Choose ASC LLP for your projects?
At ASC LLP, we are committed to delivering the highest quality stainless steel products to meet your industrial needs. Our SS 316H flanges are produced with precision and adhere to international standards, ensuring you receive components that offer exceptional performance and reliability.
- Quality Assurance: We conduct thorough inspections and tests on all our products to guarantee they meet the highest quality standards.
- Expertise: Our team of experts is knowledgeable in the field of stainless steel products and can assist you in selecting the right flanges for your specific application.
- Customer Service: We prioritize customer satisfaction and provide personalized support throughout your purchasing process, from initial inquiry to post-sale service.
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 316H 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.