Stainless Steel 347 Flanges Exporter in Mumbai are high-quality fittings manufactured from stainless steel grade 347. These flanges are essential components used to connect pipes, valves, and other equipment in various industrial applications. Ferro Fittings and Alloys, based in Mumbai, India, is a leading manufacturer and exporter of these durable and corrosion-resistant flanges, ensuring top-notch quality for our global clientele.
Our stainless steel 347 flanges conform to the highest industry standards, including ASTM, ASME, and DIN. They are available in sizes ranging from DN 15 (NPS ½) to DN 600 (NPS 24) and pressure ratings from Class 150 to Class 2500 (PN10 to PN400). These flanges can withstand temperature ranges up to 800°C (1472°F) and are compatible with various end connections, including welded, threaded, and slip-on types, making them versatile for many applications.
Common applications for our stainless steel 347 flanges span several critical industry verticals, including Oil & Gas, Petrochemical, Chemical, Power, and Pharmaceutical sectors. They are widely used in projects across the globe, particularly in countries like the UAE, Saudi Arabia, and the UK, serving various project types such as EPC (Engineering, Procurement, and Construction), LSTK (Lump Sum Turnkey), and maintenance operations. Our products meet the rigorous demands of these industries, ensuring reliability and performance.
Quality is paramount at Ferro Fittings and Alloys, as evidenced by our ISO 9001:2015 certification and the availability of EN 10204 3.1 / 3.2 Mill Test Certificates. We conduct comprehensive in-house testing that includes PMI, Hydrostatic, Hardness, Impact (Charpy), and UT, ensuring our products meet the highest quality standards. Additionally, our flanges comply with NACE MR 0175 / ISO 15156 for sour service applications. Request a free MTC sample or get a quick quote via WhatsApp.
Choosing Ferro Fittings means opting for a supplier with a competitive lead time of just 2–4 weeks, no minimum order quantity restrictions, and readily available stock. We offer flexible shipping terms including FOB Mumbai, CIF, and CFR, along with full export documentation for hassle-free transactions. For inquiries, please reach out to us at +91-86550-39959, or connect via WhatsApp at wa.me/+918655039959, or email us at export@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 347 Flanges Exporter in Mumbai 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 347 Flanges | C: 0.08 max, Cr: 18.0-20.0, Ni: 9.0-12.0, Nb: 10xC min | ASTM A182, ASME SA182 | Used in high-temperature applications, chemical processing, and petrochemical industries. |
| Stainless Steel 347 Flanges | C: 0.08 max, Cr: 18.0-20.0, Ni: 9.0-12.0, Nb: 10xC min | EN 10204 3.1 | Suitable for applications requiring resistance to intergranular corrosion. |
| Stainless Steel 347 Flanges | C: 0.08 max, Cr: 18.0-20.0, Ni: 9.0-12.0, Nb: 10xC min | DIN 17440 | Commonly used in heat exchangers, boilers, and pressure vessels. |
Ferro Fittings and Alloys is a leading exporter of Stainless Steel 347 Flanges from Mumbai, India. Our flanges are manufactured to meet stringent international standards, ensuring high quality and durability. With certifications including ISO 9001:2015 and compliance with PED 97/23/EC, we guarantee products that undergo rigorous in-house testing such as PMI, hardness, and hydrostatic testing. Our quick delivery lead times of 2-4 weeks and the ability to accommodate urgent orders make us a reliable partner for your piping needs. We serve over 50 countries including the UAE, USA, Germany, and Australia. Contact us for a quick quote or request a free sample MTC today!
SS 347 flange is a niobium (columbium)-stabilized austenitic stainless-steel flange. For forged flanges, the usual material specification is ASTM A182 Grade F347 / UNS S34700. It is particularly suitable for high-temperature service, welded piping and applications where resistance to intergranular corrosion after heating is important.
| Material | Stainless Steel 347 |
|---|---|
| Grades | 347, 347H |
| Standard | ASME B16.5, ASME B16.47, EN 1092-1, JIS B2220 and other applicable standards |
| Size Range | 1/2" to 24" |
| Pressure Rating | 150, 300, 600, 900, 1500, 2500 Class |
| Surface Finish | Mill Finish, Polished |
| End Connection | Weld Neck, Slip-On, Blind, Socket Weld |
| Grade / UNS | Common Name | Key Feature | Typical Application |
|---|---|---|---|
| S34700 | Stainless Steel 347 | Excellent resistance to intergranular corrosion | High-temperature applications, such as furnace components |
| S34703 | Stainless Steel 347H | Higher carbon content for improved high-temperature strength | Pressure vessels and piping systems in petrochemical industries |
| S34709 | Stainless Steel 347L | Low carbon variant for enhanced weldability | Welded structures in chemical processing |
| S34780 | Stainless Steel 347B | Improved resistance to oxidation | Applications in high-temperature environments |
| S34760 | Stainless Steel 347F | Good formability and corrosion resistance | Marine applications and food processing |
| Size / DN | Pressure Class | Wall Thickness | Length |
|---|---|---|---|
| 1/2" (15 mm) | 150 | 0.24" (6.1 mm) | 1.5" (38.1 mm) |
| 3/4" (20 mm) | 150 | 0.24" (6.1 mm) | 1.5" (38.1 mm) |
| 1" (25 mm) | 150 | 0.24" (6.1 mm) | 1.5" (38.1 mm) |
| 1-1/2" (40 mm) | 150 | 0.24" (6.1 mm) | 1.5" (38.1 mm) |
| 2" (50 mm) | 150 | 0.24" (6.1 mm) | 1.5" (38.1 mm) |
| 3" (80 mm) | 150 | 0.24" (6.1 mm) | 1.5" (38.1 mm) |
| Element | ASTM A182 F347 |
|---|---|
| Carbon (C) | 0.08% max |
| Manganese (Mn) | 2.00% max |
| Silicon (Si) | 1.00% max |
| Phosphorus (P) | 0.045% max |
| Sulfur (S) | 0.030% max |
| Chromium (Cr) | 17.00–20.00% |
| Nickel (Ni) | 9.00–13.00% |
| Niobium + Tantalum (Nb + Ta) | 10 × C min, 1.10% max |
| Molybdenum | Not specified as an alloying requirement |
| Iron (Fe) | Balance |
| Mechanical property | Minimum / Maximum |
|---|---|
| Tensile strength | 515 MPa min. |
| Yield strength, 0.2% | 205 MPa min. |
| Elongation | 35% min. |
| Hardness | 92 HRB max. |
| Approx. Brinell hardness | 201 HBW max. |
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Density | 7.93 g/cm³ | 0.286 lb/in³ |
| Melting Point | 1450 - 1510 °C | 2642 - 2750 °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 | SS 347 equivalent |
|---|---|
| ASTM | A182 F347 |
| ASME | SA182 F347 |
| UNS | S34700 |
| AISI | 347 |
| EN / DIN | 1.4550 |
| EN designation | X6CrNiNb18-10 |
| JIS | SUS347 |
| BS | 347S31 |
| GOST | 08Ch18N12B |
The most useful equivalent designations for international purchasing are UNS S34700, EN 1.4550/X6CrNiNb18-10 and JIS SUS347.
SS347 is particularly useful for high-temperature and welded piping systems.
The principal reason for selecting F347 is its stabilized structure and resistance to intergranular corrosion after high-temperature exposure, combined with good oxidation and creep properties.
At Ferro Fittings and Alloys, we utilize high-quality raw materials that meet international standards such as ASTM A182 and ASME SA182 for Stainless Steel 347. Each batch of raw material undergoes rigorous inspection, including Positive Material Identification (PMI) to ensure compliance with the specified chemical composition.
The forming process for Stainless Steel 347 Flanges involves hot and cold working techniques to achieve desired shapes and dimensions. Our skilled technicians utilize advanced CNC machinery to fabricate flanges in various sizes, including standard dimensions such as 1/2" to 24" in diameter, with thicknesses ranging from 1/4" to 2". Each flange is meticulously crafted to meet tolerances specified in ASME B16.5 and ASTM standards.
| Process | Temperature (°C) | Medium | Purpose |
|---|---|---|---|
| Solution Annealing | 1040-1120 | Air | To dissolve carbides and enhance corrosion resistance |
| Stress Relief | 400-600 | Air | To relieve internal stresses from fabrication |
Quality is paramount at Ferro Fittings and Alloys. Our Stainless Steel 347 Flanges undergo comprehensive testing, including Hydrostatic Testing, Hardness Testing, and Charpy Impact Tests. We provide Material Test Certificates (MTC) in accordance with EN 10204 3.1/3.2, ensuring that our products meet the stringent requirements of industries worldwide. We are certified to ISO 9001:2015, further guaranteeing the quality of our manufacturing processes. Contact us for a quick quote or to request a free sample MTC.
| Grade | Size / Dimension | Price (USD/Kg) | Price (INR/Kg) |
|---|---|---|---|
| SS 347 | 1/2" (15mm) | $4.50 | ₹370 |
| SS 347 | 1" (25mm) | $4.80 | ₹395 |
| SS 347 | 2" (50mm) | $5.20 | ₹430 |
| SS 347 | 4" (100mm) | $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 347 Flanges Exporter in Mumbai from Ferro Fittings and Alloys. Contact us for prompt delivery at competitive prices.
Ferro Fittings and Alloys exports Stainless Steel 347 Flanges Exporter in Mumbai 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
📧 Sales: export@ferrofittings.com
📧 Export: export@ferrofittings.com
📧 Gmail: inquiry@ferrofittings.com
