Stainless Steel 304L Flanges are among the most widely used industrial flanges across piping, pressure vessel, and fabrication industries. Known for their excellent corrosion resistance, superior weldability, and low carbon content, these flanges are ideal for applications where post-weld heat treatment is not possible.
We are a trusted manufacturer, stockist, and global supplier of Stainless Steel 304L Flanges, offering a complete range of forged, plate, and machined flanges that comply with ASTM, ASME, ANSI, DIN, BS, and EN standards. Our flanges are used extensively in oil & gas, petrochemical, chemical processing, power generation, food processing, and pharmaceutical industries worldwide.
What Are Stainless Steel 304L Flanges?
Stainless Steel 304L Flanges are produced from ASTM A182 F304L, a low-carbon version of SS 304. The “L” grade contains less than 0.03% carbon, which significantly reduces the risk of intergranular corrosion after welding.
Because of this property, 304L Stainless Steel Flanges are the preferred choice for welded systems operating in corrosive environments and moderate to high temperatures.
Common Designations:- ASTM A182 F304L Stainless Steel Flanges:
- SS UNS S30403 Pipe Flanges
- DIN / EN Grades: 1.4306, 1.4307
- ASME SA182 SS 304L Industrial Flanges
Stainless Steel 304L Flange Standards & Specifications
We manufacture Stainless Steel 304L Flanges in compliance with international quality standards:
- ASTM A182 F304L Stainless Steel Flanges
- ASME SA182 SS 304L Industrial Flanges
- ANSI B16.5 / ANSI B16.47
- DIN Standard Flanges
- BS10 Table D, Table E
- EN-1092 Stainless Steel 304L Forged Flanges in Mumbai, India
Types of Stainless Steel 304L Flanges We Supply
We manufacture and stock a complete range of Stainless Steel 304L Flanges in all pressure classes, sizes, and facing types.
➤ SS 304L Weld Neck Flanges (WNRF)
As a leading A182 F304L WNRF Flange manufacturer in India, we supply precision- forged weld neck flanges designed for high-pressure and high-temperature applications.
Features:- Long tapered hub for stress distribution
- Ideal for critical pipelines
- Common standards: ANSI B16.5, EN-1092
We are also recognized as a Global Supplier of SS 304L Weld Neck Flange for export markets.
➤ SS 304L Slip On Flanges (SORF)
SS 304L SORF Flange and SA182 304L Slip On Flanges are widely used due to their ease of installation and cost efficiency.
Applications:- Low to medium pressure lines
- Water pipelines
- Utility services
We are a reliable Stockist of SS 304L Slip On Flanges in India with ready inventory.
➤ Stainless Steel 304L Blind Flanges
Stainless Steel DIN 1.4307 Blind Flanges and SS 304L Blind Flanges are used to close the ends of pipelines, valves, or pressure vessels.
Benefits:- High pressure resistance
- Easy access for inspection
- Available in DIN, ANSI, BS10, and EN standards
We are a reputed SS 304L Blind Flanges Dealer in India, supplying to both domestic and international clients.
➤ SS 304L Lap Joint Flanges
ASME SA182 SS 304L Lap Joint Flange India is ideal for systems requiring frequent dismantling.
Advantages:- Works with stub ends
- Allows easy pipe alignment
- Cost-effective for stainless steel piping
➤ SS 304L Socket Weld & Threaded Flanges
We supply Werkstoff No. 1.4306 SS Socket Weld Flanges for high-pressure small bore piping systems where leakage prevention is critical.
➤ SS 304L Orifice Flanges
ANSI SS 304L Orifice Flange and ANSI B16.5 SS 304L Orifice Flanges are used to measure flow rate in pipelines.
Typical Uses:- Oil & gas pipelines
- Process plantst
- Refineries
➤ Plate & Specialty Flanges
- ANSI B16.5 SS 304L Plate Flange
- Manufacturer of ASTM A182 304L SS Plate Flange
- SS UNS S30403 Nippolet Flanges for branch connections
These flanges are machined with high dimensional accuracy to ensure leak-proof performance.
Applications of Stainless Steel 304L Flanges
Based on years of supplying industrial projects, 304L Stainless Steel Flanges are commonly used in:
- Oil & Gas pipelines
- Petrochemical plants
- Chemical processing units
- Power generation facilitie
- Food & beverage industries
- Pharmaceutical plants
- Heat exchangers and pressure vessels
Their corrosion resistance and weld-friendly nature make them suitable for both aggressive and hygienic environments.
Mechanical Properties – Stainless Steel 304L Flanges (ASTM A182 F304L)
| Property | Value |
|---|---|
| Tensile Strength | 485 MPa min (70 ksi) |
| Yield Strength (0.2% Offset) | 170 MPa min (25 ksi) |
| Elongation | 40% min |
| Reduction of Area | 50% min |
| Hardness (Brinell) | ≤ 201 HB |
| Impact Strength | Excellent at low temperatures |
| Modulus of Elasticity | 193 GPa |
Chemical Composition – Stainless Steel 304L (UNS S30403 / DIN 1.4307)
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Physical Properties – Stainless Steel 304L Flanges
| Physical Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1399 – 1454°C |
| Thermal Conductivity | 16.2 W/m·K (at 100°C) |
| Specific Heat Capacity | 500 J/kg·K |
| Electrical Resistivity | 72 µΩ·cm (at 20°C) |
| Coefficient of Thermal Expansion | 17.2 µm/m·°C (0–100°C) |
| Magnetic Properties | Non-magnetic (annealed condition) |
Manufacturing Standards & Specifications
Our Stainless Steel 304L Flanges Suppliers network ensures compliance with international standards:
- ASTM A182 F304L Stainless Steel Flanges
- ASME SA182
- ANSI B16.5 / ANSI B16.47
- DIN Standard Flanges
- EN-1092 Stainless Steel 304L Forged Flanges in Mumbai, India
- BS10 Table D, Table E
Why Buy SS 304L Flanges From Us?
Whether you need SA182 304L Slip On Flanges, SS 304L Blind Flanges, or A182 F304L WNRF Flange, we ensure dependable performance in every application. Our experience in supplying Stainless Steel ASTM A182 304L Industrial Flanges allows us to understand real project requirements—not just specifications on paper.
Stainless Steel 304L Flanges Suppliers Globally
If you are looking for high-quality Stainless Steel 304L Flanges that offer durability, corrosion resistance, and reliable performance, we provide solutions that meet both technical standards and real-world application needs. From A182 F304L WNRF Flange to DIN 1.4307 Blind Flanges, our product range supports diverse industries across the globe.
For pricing, stock availability, or technical assistance, our team is always ready to help you choose the right SS 304L Pipe Flanges for your application.
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