When industries require flanges that can withstand high temperatures, pressure, and corrosive environments, Stainless Steel 316H Flanges are one of the most reliable solutions. We are a leading Stainless Steel 316H Flanges Manufacturer & Supplier in India, offering precision-engineered flanges that meet international standards and industrial performance requirements.
Our product range includes ASTM A182 Stainless Steel 316H Flanges, ASME SA182 SS 316H Flanges, and customized flange solutions designed for refineries, power plants, petrochemical industries, marine applications, and heavy engineering projects.
What Are Stainless Steel 316H Flanges?
Stainless Steel 316H Flanges are high-carbon versions of SS 316 flanges. The “H” grade indicates higher carbon content, which improves strength and creep resistance at elevated temperatures. These flanges are specially designed for high-temperature service and pressure applications.
Manufactured under ASTM A182 Stainless Steel 316H Flange Manufacturer standards, these flanges offer:
- Excellent corrosion resistance
- Superior high-temperature strength
- Enhanced durability
- Long service life
- Resistance to pitting and crevice corrosion
We supply SS 316H flanges that comply with international specifications and are suitable for critical piping systems.
Types of SS 316H Flanges We Supply
As a trusted Stainless Steel 316H Flange Manufacturer, we offer a wide range of flange types to meet diverse project requirements:
➤ SS 316H Weld Neck Flanges
Our SS 316H weld neck flanges are designed with a long tapered hub, providing excellent reinforcement for high-pressure pipelines. We are known as a Global Supplier of SS 316H Weld Neck Flange for refinery and power plant applications.
➤ SS 316H Slip On Flange
The SS 316H Slip On Flange is easy to install and cost-effective. It is widely used in low- to medium-pressure systems.
➤ SS 316H SO Flanges
Also referred to as SS 316H SO flanges, these flanges slide over the pipe and are welded inside and outside for strength.
➤ SS 316H Blind Flanges
We are a leading SS 316H Blind Flanges Supplier in India, offering blind flanges used to close pipeline ends, valves, or pressure vessel openings
➤ SS 316H Flat Face Flanges
Our SS 316H blind flanges & SS 316H flat face flanges stockholders range includes flat face designs suitable for low-pressure systems where bolt load control is critical.
➤ ANSI B16.5 SS 316H Orifice Flanges
The ANSI B16.5 SS 316H Orifice Flanges are used in flow measurement applications. These flanges are manufactured with precision tapping for instrumentation.
Standards & Specifications – ASTM A182 Stainless Steel 316H Flanges Suppliers
| Specification | Details |
|---|---|
| Material Grade | SS 316H / UNS S31609 |
| Standard | ASTM A182 / ASME SA182 |
| Pressure Class | 150# to 2500# |
| Size Range | ½” to 48” |
| Face Type | RF, FF, RTJ |
| Manufacturing Type | Forged / Machined |
Mechanical Properties of ASME SA182 SS 316H Flanges
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 217 HB |
These properties make ASME SA182 SS 316H Flanges ideal for applications involving elevated temperatures and pressure conditions.
Chemical Composition of SS 316H (UNS S31609)
Our SS UNS S31609 Pipe Flanges are manufactured using controlled raw materials to ensure consistent performance.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.04 – 0.10 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
Why Choose SS 316H Flanges?
- Excellent High-Temperature Performance: SS 316H flanges are suitable for applications up to 500°C and above in certain controlled environments.
- Superior Corrosion Resistance: The presence of molybdenum enhances resistance to chlorides and marine environments.
- High Strength and Durability: Due to increased carbon content, Stainless Steel 316H Flanges offer better creep resistance compared to 316L.
- Long Service Life: Ideal for critical industrial piping systems where reliability is essential.
Applications of Stainless Steel 316H Flanges
We supply Stainless Steel 316H Flanges to various industries, including:
- Oil & Gas Refineries
- Petrochemical Plants
- Chemical Processing Units
- Power Generation Plants
- Marine Industry
- Heat Exchangers
- Boilers and Pressure Vessels
Trusted Stainless Steel 316H Flanges Manufacturer & Supplier in India
Stainless Steel 316H Flanges are a dependable solution for high-temperature and corrosive environments. Whether you require ASME SA182 SS 316H Flanges, SS UNS S31609 Pipe Flanges, ANSI B16.5 SS 316H Orifice Flanges, SS 316H SO flanges, or custom forged solutions, we deliver precision, reliability, and global- standard quality.
As a leading Stainless Steel 316H Flange Manufacturer and ASTM A182 Stainless Steel 316H Flanges Suppliers, we are committed to delivering flanges that meet real-world industrial demands — safely, efficiently, and consistently.
For technical specifications, pricing, or bulk orders, our team is ready to assist you with prompt support and expert guidance.
Request Your Stainless Steel 316H Flanges today
