A Stainless Steel 316L Flange is a critical piping component used to connect pipes, valves, pumps, and pressure vessels in industries where corrosion resistance and durability are essential. Manufactured under ASTM A182 F316L Stainless Steel Flanges specification and identified as UNS S31603 Flanges, this grade is widely used in marine, chemical, oil & gas, and pharmaceutical environments.
As an experienced 316L Stainless Steel Flanges Supplier and global exporter, we manufacture flanges that comply with ASME, ANSI, DIN, and EN standards. Every flange is produced using fully traceable raw materials, precision forging processes, and strict inspection protocols to ensure long-term reliability.
What is ASTM A182 F316L Stainless Steel?
316L is the low-carbon version of 316 stainless steel. The “L” indicates reduced carbon content (maximum 0.03%), which significantly improves weldability and minimizes the risk of intergranular corrosion after welding. Material Identifications:
- ASTM Standard: ASTM A182 F316L Stainless Steel Flanges
- UNS Designation: UNS S31603 Flanges
- Werkstoff Number: SS WERKSTOFF NR. 1.4404 Socket Weld Flanges
- Material Type: Austenitic Chromium-Nickel-Molybdenum Stainless Steel
The addition of molybdenum enhances resistance to chlorides and aggressive chemicals, making 316L superior to 304 grade in corrosive conditions.
Types of Stainless Steel 316L Flanges We Manufacture
We supply a complete range of flange types suitable for low, medium, and high-pressure applications.
➤ 316L Stainless Steel WNRF Flanges
316L Stainless Steel WNRF Flanges (Weld Neck Raised Face) are designed for high-pressure and high-temperature pipelines. The long tapered hub provides excellent stress distribution, reducing mechanical failure risks. Applications include:
- Oil & Gas pipelines
- Petrochemical plants
- Power generation systems
➤ SS 316L Slip On Flanges
SS 316L Slip on Flanges are easy to align and weld, making installation faster and more economical.
If you want a cost-effective piping solution, you can Check SS 316L Slip On Flange options available in various pressure classes. Best suited for:
- Water lines
- Cooling systems
- Low-pressure pipelines
➤ ANSI B16.5 SS F316 Lap Joint Flange
Manufactured according to ANSI B16.5 SS F316 Lap Joint Flange standards, these flanges are used with stub ends. They allow easy dismantling and are ideal for systems requiring regular inspection.
➤ SS WERKSTOFF NR. 1.4404 Socket Weld Flanges
Our SS WERKSTOFF NR. 1.4404 Socket Weld Flanges are commonly used in small-diameter, high-pressure pipelines. They provide a strong, leak-resistant connection.
➤ ASTM A182 Stainless Steel 316L Blind Flanges Exporter
As an ASTM A182 Stainless Steel 316L Blind Flanges Exporter, we provide blind flanges used to close pipeline ends or pressure vessel openings. These flanges ensure safety during maintenance or system shutdown.
➤ 316L Stainless Steel Threaded Flanges Stockists
We are reliable 316L Stainless Steel Threaded Flanges Stockists, offering threaded flanges for non-welded piping systems. These are commonly used where welding is not recommended.
➤ A182 F316L Plate Flange
The A182 F316L Plate Flange is manufactured from stainless steel plate material and is ideal for low-pressure applications and larger diameters.
Industrial Applications of SS 316L Flanges
Our 316L Stainless Steel Flanges Exporters team supplies products for:
- Oil & Gas Industry
- Petrochemical Plants
- Marine & Offshore Platforms
- Pharmaceutical Units
- Food Processing Industry
- Water Treatment Plants
- Power Generation Facilities
Because of its corrosion resistance and structural strength, UNS S31603 Flanges are trusted worldwide.
Product Specifications – Stainless Steel 316L Flanges
| Parameter | Details |
|---|---|
| Material Grade | 316L Stainless Steel |
| ASTM Standard | ASTM A182 F316L |
| UNS Number | UNS S31603 |
| Werkstoff No. | 1.4404 |
| Manufacturing Method | Forged / Machined from Plate |
| Pressure Ratings | Class 150, 300, 600, 900, 1500, 2500 |
| Size Range | ½” NB to 48” NB |
| Facing Types | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
| Flange Standards | ASME B16.5, ASME B16.47, ANSI B16.5, DIN, EN |
| Testing | PMI, UT, Hydro Test, Visual Inspection |
| Certification | EN 10204 3.1 / 3.2 MTC |
This specification structure ensures that our ASTM A182 F316L Stainless Steel Flanges meet international industrial requirements.
Mechanical Properties of 316L Stainless Steel Flanges
| Property | Value |
|---|---|
| Tensile Strength | 485 MPa (Min) |
| Yield Strength | 170 MPa (Min) |
| Elongation | 40% (Min) |
| Hardness | 95 HRB (Max) |
Chemical Composition of UNS S31603 Flanges
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Carbon (C) | Max 0.03 |
| Manganese (Mn) | Max 2.0 |
| Silicon (Si) | Max 0.75 |
| Phosphorus (P) | Max 0.045 |
| Sulfur (S) | Max 0.03 |
Choosing the Right ASTM A182 F316L Stainless Steel Flanges
When selecting a 316L Stainless Steel Flanges, consider:
- Pressure class
- Flange type (WNRF, Slip On, Blind, Threaded, Lap Joint, Socket Weld)
- Facing type (RF, FF, RTJ)
- Operating temperature
- Type of fluid or gas
Our technical support team assists buyers in selecting the correct A182 F316L Plate Flange, SS 316L Slip on Flanges, or other flange types based on project specifications.
Trusted 316L Stainless Steel Flanges Supplier & Exporter
Stainless Steel 316L Flanges manufactured under ASTM A182 F316L Stainless Steel Flanges standards provide exceptional corrosion resistance, strength, and reliability. Identified globally as UNS S31603 Flanges and SS WERKSTOFF NR. 1.4404 Socket Weld Flanges, this material is trusted in critical industrial applications.
From 316L Stainless Steel WNRF Flanges to ANSI B16.5 SS F316 Lap Joint Flange, ASTM A182 Stainless Steel 316L Blind Flanges Exporter solutions, and 316L Stainless Steel Threaded Flanges Stockists supply, we deliver precision-engineered products designed for long service life and safe operation.
If you are searching for a dependable 316L Stainless Steel Flanges Supplier offering certified materials, competitive pricing, and global shipping support, we are ready to meet your industrial requirements with quality you can trust.
Request Your Stainless Steel 316L Flanges today
