Stainless Steel 316 Flanges are widely used in industries where corrosion resistance, strength, and long service life are essential. As an experienced manufacturer and supplier, we provide a complete range of Stainless Steel ASTM A182 316 Flanges designed to meet global quality standards and demanding industrial applications.
Made from molybdenum-bearing austenitic stainless steel, Grade 316 offers better resistance to chlorides and chemical exposure compared to 304. This makes it ideal for marine, chemical, oil & gas, and pharmaceutical industries.
What is Stainless Steel 316 (UNS S31600 / WNR 1.4401)?
Stainless Steel 316, also known as UNS S31600 and WNR 1.4401, is an austenitic chromium-nickel stainless steel with added molybdenum. The molybdenum improves resistance to pitting and crevice corrosion, especially in saltwater and chloride-rich environments.
When forged under ASTM A182 and ASME SA182 standards, SS 316 flanges deliver excellent mechanical strength, weldability, and durability even at elevated temperatures.
We manufacture and supply flanges that strictly follow international standards such as:
- ASTM A182 F316
- ASME SA182
- ASME B16.5
- ASME B16.47
- DIN / EN standards
Types of Stainless Steel 316 Flanges We Offer
➤ A182 F316 Slip On Flange
The A182 F316 Slip On Flange is easy to install and cost-effective. It slides over the pipe and is welded both inside and outside for strength.
Advantages:- Simple alignment and installation
- Lower installation cost
- Ideal for low to moderate pressure systems
These flanges are widely used in water treatment plants, chemical units, and low-pressure pipelines.
➤ ASME SA182 SS 316 Weld Neck Flange Suppliers in Mumbai
As trusted ASME SA182 SS 316 Weld Neck Flange suppliers in Mumbai, we provide high-quality weld neck flanges designed for high-pressure and high-temperature systems.
The long tapered hub ensures smooth stress distribution from flange to pipe, reducing the risk of leakage and failure.
Best for:- Oil & Gas pipelines
- Petrochemical plants
- Power generation units
Weld neck flanges are preferred where safety and strength are critical.
➤ SS 316 Blind Flange
The SS 316 Blind Flange is used to close the end of a piping system or pressure vessel opening. It does not have a bore and is ideal for testing and inspection.
Key Benefits:- Allows future expansion of piping
- Provides easy access for maintenance
- Withstands high pressure
We also manufacture ASTM A182 F316 BLRF Flange Manufacturer solutions (Blind Raised Face), designed for tight sealing and high-pressure systems.
➤ Manufacturer of SS DIN 1.4401 Nippolet Flanges
As a leading Manufacturer of SS DIN 1.4401 Nippolet Flanges, we produce branch connection fittings that combine a weldolet and nipple in a single fitting. These are used to:
- Create 90° branch connections
- Reduce welding time
- Improve structural integrity
They are commonly used in refinery and process industries.
➤ SS UNS S31600 Orifice Flanges
The SS UNS S31600 Orifice Flange is specially designed to measure the flow rate of liquids or gases. It includes pressure tap holes for attaching instruments. Used in:
- Flow measurement systems
- Oil & gas pipelines
- Chemical processing units
We ensure precise machining for accurate measurement performance.
➤ WNR 1.4401 Threaded Flange
The WNR 1.4401 Threaded Flange (also known as screwed flange) is used in systems where welding is not preferred.
- Internal threading
- Suitable for small diameter pipes
- Ideal for low-pressure applications
These flanges are common in hazardous environments where welding may be risky.
➤ UNS S31600 Socket Weld Trader
As a reliable UNS S31600 Socket Weld Trader, we supply socket weld flanges designed for small-bore high-pressure piping systems.
- Strong and leak-proof joint
- Smooth bore and better flow
- Compact and efficient design
Applications of SS 316 Flanges
Our Stainless Steel ASTM A182 316 Flanges are used in:
- Oil & Gas Industry
- Petrochemical Plants
- Chemical Processing Units
- Marine Engineering
- Water Treatment Plants
- Power Generation
- Pharmaceutical Industry
- Food Processing Units
Because of their durability and resistance to harsh environments, SS 316 flanges are often chosen for long-term industrial projects.
Stainless Steel ASTM A182 316 Flanges – Technical Specifications
To meet global project requirements, our SS UNS S31009 Pipe Flanges are manufactured according to the following standards and dimensions:
| Specification | Details |
|---|---|
| Material Grade | ASTM A182 F316 |
| Equivalent Grades | UNS S31600, WNR 1.4401 |
| Standards | ASME B16.5, ASME B16.47, DIN, EN |
| Pressure Class | 150# to 2500# |
| Size Range | ½” to 48” NB |
| Facing Types | RF, FF, RTJ |
| Manufacturing Process | Forged & Machined |
| Testing | PMI, UT, Hydro Test, Third Party Inspection |
Mechanical Properties of ASTM A182 F316 Flanges
These mechanical properties make Stainless Steel 310H Pipe Flanges suitable for demanding industrial environments:
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | Max 217 HB |
Chemical Composition of Stainless Steel 316 (Typical %)
| Element | Percentage (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Carbon (C) | Max 0.08 |
| Manganese (Mn) | Max 2.0 |
| Silicon (Si) | Max 1.0 |
| Phosphorus (P) | Max 0.045 |
| Sulfur (S) | Max 0.03 |
Why Stainless Steel 316 Flanges Are Widely Used
- Wide stock of standard and custom flanges
- Competitive pricing
- Fast delivery schedules
- Strict adherence to ASTM & ASME standards
- Technical support for product selection
Our goal is not just to sell flanges, but to provide the right engineering solution that ensures safety, efficiency, and long service life.
Reliable Stainless Steel 316 Flanges Suppliers In India
If you are looking for high-quality A182 F316 Slip On Flange, SS 316 Blind Flange, SS UNS S31600 Orifice Flange, WNR 1.4401 Threaded Flange, or complete Stainless Steel ASTM A182 316 Flanges solutions, we are here to help.
With strong manufacturing capabilities, technical expertise, and commitment to quality, we deliver flanges that perform reliably even in the most demanding environments.
For bulk inquiries, project requirements, or technical assistance, contact us today and let our team help you choose the right Stainless Steel 316 Flange for your application.
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