Stainless Steel 304 304L Flanges are essential components in piping systems, designed to create secure connections between pipes or equipment. Manufactured and exported by Ferro Fittings and Alloys in Mumbai, these flanges are crafted from high-grade stainless steel, ensuring durability and resistance to corrosion. Our commitment to quality and precision makes our flanges a preferred choice for various industrial applications around the world.
These flanges comply with rigorous standards such as ASTM, ASME, and DIN, covering a wide range of sizes from DN 15 to DN 600 (NPS ½ to NPS 24). They are available in pressure ratings from Class 150 to Class 2500 (PN10 to PN400), and can withstand temperatures ranging from -196°C to 800°C. Suitable end connections include weld neck, slip-on, threaded, and blind, ensuring versatility in installation.
The application of Stainless Steel 304 304L Flanges spans various industries, including Oil & Gas, Petrochemical, Chemical, Power Generation, and Pharmaceuticals. These flanges are particularly vital in projects across the UAE, Saudi Arabia, and Qatar, as well as in EPC and LSTK projects in the UK and USA. Their reliability and performance make them indispensable in shipbuilding and water treatment facilities, ensuring operational efficiency.
Ferro Fittings and Alloys is proud to be ISO 9001:2015 certified, providing EN 10204 3.1 / 3.2 Mill Test Certificates for our products. Our in-house testing capabilities include PMI, Hydrostatic, Hardness, and Impact (Charpy) tests, along with Ultrasonic Testing (UT) and Liquid Penetrant Testing (LPT). We also ensure compliance with NACE MR 0175 / ISO 15156 for applications in sour service environments. Request a free MTC sample or get a quick quote via WhatsApp.
Choosing Ferro Fittings means benefiting from competitive lead times of just 2–4 weeks, no minimum order quantity restrictions, and readily available stock. We offer FOB Mumbai, CIF, and CFR shipping with comprehensive export documentation to ensure smooth delivery. For inquiries, please contact us at +91-86550-39959, reach us on WhatsApp at wa.me/+918655039959, or email us at sales@ferrofittings.com.
Trusted manufacturer & exporter of Flanges, Pipe Fittings and Valves in 30+ countries.
1–4 weeks depending on size, grade & quantity.
Urgent and bulk orders handled efficiently.FOB, CIF, CFR, EXW, DDP (Incoterms 2020).
Door-to-port and door-to-door delivery available.Sea Freight / Air Cargo / Express Courier.
Complete export documentation & tracking support.Trusted by EPC contractors, procurement teams, and global industrial buyers across multiple countries for certified supply and reliable delivery.
Direct supply with bulk stock availability to reduce your overall project cost.
ISO 9001, ISO 14001, ISO 45001, PED certified with full test certificates.
Safe, sea-worthy packaging ensuring damage-free international delivery.
Selecting the right partner for Stainless Steel 304 304L Flanges is critical for ensuring product quality, long-term performance, and successful project execution. As a trusted manufacturer and exporter, Ferro Fittings and Alloys delivers high-quality materials meeting international standards and global industry requirements.
Understand the key differences between local suppliers, trading companies, and professional manufacturers & exporters like Ferro Fittings and Alloys.
| Evaluation Factor | Small Local Suppliers | Trading Companies | Ferro Fittings and Alloys |
|---|---|---|---|
| Manufacturing Control | Limited or outsourced production | Dependent on third-party mills | Direct manufacturing with strict quality control |
| Standards Compliance | Basic or local standards | Varies depending on supplier | ASTM, ASME, ANSI, EN, ISO certified products |
| Inspection & Certification | Limited documentation | Inconsistent certification | MTC, TPI, and full export documentation provided |
| Export Capability | Mostly domestic supply | Moderate export handling | Global exports with complete logistics support |
| Delivery Reliability | Uncertain timelines | Depends on sourcing chain | Consistent lead times with ready stock availability |
| Project Risk Level | High | Medium | Low |
| Product | Composition | Standard | Application |
|---|---|---|---|
| Stainless Steel 304 Flanges | 18% Cr, 8% Ni | ASTM A240, ASME SA240 | Used in piping systems for chemical and food processing |
| Stainless Steel 304L Flanges | 18% Cr, 8% Ni, Low Carbon | ASTM A240, ASME SA240 | Ideal for welded structures to minimize carbon precipitation |
| Stainless Steel 304/304L Flanges | 18% Cr, 8% Ni, Low Carbon | EN 10088-2, DIN 1.4301/1.4307 | Recommended for marine and high-temperature applications |
Ferro Fittings and Alloys specializes in high-quality Stainless Steel 304 and 304L Flanges, conforming to international standards such as ASTM, ASME, and DIN. With a composition that includes 18% chromium and 8% nickel, these flanges provide excellent corrosion resistance and are ideal for various applications, including chemical processing, food production, and marine environments. Our products undergo rigorous in-house testing, including PMI, hardness, hydrostatic, and radiography tests, ensuring compliance with ISO 9001:2015 standards. We offer a lead time of 2–4 weeks, with stock available for urgent orders. Contact us for a quick quote or request a free sample MTC to experience our commitment to quality and service.
| Material | Stainless Steel |
|---|---|
| Grades | 304, 304L |
| Standard | ANSI/ASME B16.5 |
| Size Range | 1/2" to 24" |
| Pressure Rating | 150 to 2500 psi |
| Surface Finish | Mill Finish, Polished |
| End Connection | Weld Neck, Slip-On, Blind, Socket Weld |
| Form | Flat, Raised Face |
| Grade / UNS | Common Name | Key Feature | Typical Application |
|---|---|---|---|
| 304 / S30400 | Stainless Steel 304 | Good corrosion resistance, high strength, and good weldability | Food processing, chemical processing, and architectural applications |
| 304L / S30403 | Stainless Steel 304L | Lower carbon content for improved weldability and resistance to intergranular corrosion | Welded structures, piping systems, and marine applications |
| 304H / S30409 | Stainless Steel 304H | Higher carbon content for improved strength at elevated temperatures | Power generation, heat exchangers, and high-temperature applications |
| 316 / S31600 | Stainless Steel 316 | Superior corrosion resistance due to molybdenum addition | Marine environments, chemical processing, and pharmaceuticals |
| 316L / S31603 | Stainless Steel 316L | Low carbon variant for enhanced weldability and corrosion resistance | Welded applications in corrosive environments, such as marine and chemical industries |
| Size / DN | Pressure Class | Wall Thickness | Length |
|---|---|---|---|
| 1/2" (15 mm) | 150 | 0.120" (3.05 mm) | 5.0" (127 mm) |
| 3/4" (20 mm) | 150 | 0.120" (3.05 mm) | 5.0" (127 mm) |
| 1" (25 mm) | 150 | 0.120" (3.05 mm) | 5.0" (127 mm) |
| 1-1/2" (40 mm) | 150 | 0.120" (3.05 mm) | 5.0" (127 mm) |
| 2" (50 mm) | 150 | 0.120" (3.05 mm) | 5.0" (127 mm) |
| 3" (80 mm) | 150 | 0.120" (3.05 mm) | 5.0" (127 mm) |
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.08 | 0.08 |
| Chromium (Cr) | 18.00 | 20.00 |
| Nickel (Ni) | 8.00 | 10.50 |
| Manganese (Mn) | 2.00 | 2.00 |
| Silicon (Si) | 0.75 | 0.75 |
| Phosphorus (P) | 0.040 | 0.040 |
| Sulfur (S) | 0.030 | 0.030 |
| Property | Value | Unit | Test Standard |
|---|---|---|---|
| Yield Strength (0.2% Proof Stress) | 215 | MPa | ASTM A240/A480 |
| Tensile Strength | 505 | MPa | ASTM A240/A480 |
| Elongation in 50mm (2 inches) | 40 | % | ASTM A240/A480 |
| Hardness (Brinell) | 201 | HB | ASTM E10 |
| Modulus of Elasticity | 193000 | MPa | ASTM E111 |
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Density | 7900 kg/m³ | 0.284 lb/in³ |
| Melting Point | 1400 - 1450 °C | 2552 - 2642 °F |
| Specific Heat | 500 J/(kg·K) | 0.119 BTU/(lb·°F) |
| Thermal Conductivity | 16 W/(m·K) | 110 BTU/(hr·ft²·°F) |
| Electrical Resistivity | 0.72 µΩ·m | 0.72 µΩ·in |
| Standard | Grade | UNS | Werkstoff Nr. | BS |
|---|---|---|---|---|
| AISI | 304 | S30400 | 1.4301 | 304S31 |
| AISI | 304L | S30403 | 1.4306 | 304S11 |
| ASTM | A240 | S30400/S30403 | 1.4301/1.4306 | 304S31/304S11 |
The raw materials used for manufacturing Stainless Steel 304 and 304L flanges are sourced from certified suppliers and undergo rigorous inspection. Each batch is subjected to Positive Material Identification (PMI) to ensure compliance with ASTM A240 standards, verifying the chemical composition necessary for corrosion resistance and durability in various applications.
The forming process involves the use of high-quality stainless steel sheets that are cut and shaped using advanced CNC machines. The flanges are then fabricated into various types, including slip-on, weld neck, and blind flanges, following the dimensions specified in ASME B16.5. Standard sizes range from 1/2" to 24" in diameter, with pressure ratings up to 1500 lbs. This precision ensures a perfect fit and reliable performance in piping systems.
| Process | Temperature (°C) | Medium | Purpose |
|---|---|---|---|
| Solution Annealing | 1010-1121 | Air | To dissolve precipitates and enhance corrosion resistance |
| Stress Relieving | 600-800 | Air | To relieve internal stresses from fabrication processes |
Quality inspection is a critical part of our manufacturing process for Stainless Steel 304 and 304L flanges. All products undergo a series of tests, including hardness testing, hydrostatic testing, and radiography, to ensure they meet international standards such as EN 10204 3.1 and 3.2 MTC. Our commitment to quality is backed by ISO 9001:2015 certification, ensuring that every flange is reliable and suitable for export to over 50 countries, including the UAE, USA, and Germany. Contact us for a quick quote or request a free sample MTC.
| Grade | Size / Dimension | Price (USD/Kg) | Price (INR/Kg) |
|---|---|---|---|
| 304 | 1/2" (15 mm) | $4.50 | ₹370 |
| 304L | 1" (25 mm) | $4.80 | ₹395 |
| 304 | 2" (50 mm) | $5.20 | ₹430 |
| 304L | 4" (100 mm) | $6.00 | ₹495 |
Note: Prices are indicative and subject to change based on quantity, raw material costs, and delivery terms. Contact us for the latest quotation.
Our multiple locations and strong logistics network make it easy for customers across India to source Stainless Steel 304 304L Flanges from Ferro Fittings and Alloys. Contact us for prompt delivery at competitive prices.
Ferro Fittings and Alloys exports Stainless Steel 304 304L Flanges to 50+ countries worldwide. We handle all export documentation, sea-worthy packaging, and logistics to ensure on-time, damage-free delivery anywhere in the world.
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Ferro Fittings and Alloys is a leading ISO 9001:2015 certified manufacturer, supplier, and exporter of high-quality pipe fittings, valves, flanges, round bars, sheets, plates, pipes, tubes, and expansion bellows. Based in Mumbai, India, we serve industrial sectors including oil & gas, petrochemical, power generation, pharmaceuticals, marine, and construction.
We supply a comprehensive range of grades — Stainless Steel, Duplex & Super Duplex, Carbon Steel, Alloy Steel, Inconel, Hastelloy, Monel, Titanium, Nickel, and Nimonic Alloys — to customers in 50+ countries. Our products are manufactured as per ASTM, ASME, ANSI, MSS, BS, DIN, and EN standards with EN 10204 3.1/3.2 Mill Test Certificates.
📍 Address: 6th Kumbharwada, Shop No. 154, Near Alankar Cinemas, Mumbai 400 004
📞 Mr. Aashit Shah: +91 86524 99959
📞 Mr. Bhavin Shah: +91 86550 39959
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