Hinged Expansion Bellows are specialized components designed to absorb thermal expansion and contraction in piping systems. Manufactured from high-grade materials, these bellows ensure durability and flexibility in various applications. Ferro Fittings and Alloys, based in Mumbai, India, is a leading manufacturer and exporter of these essential products, catering to industries across the globe.
Our hinged expansion bellows comply with stringent standards such as ASTM, ASME, and DIN, ensuring quality and reliability. They are available in size ranges from DN 25 to DN 600 (NPS 1 to NPS 24) and can handle pressure ratings from Class 150 to 2500 (PN10 to PN400). The temperature range for these bellows typically spans from -50°C to +500°C, with various end connections available to suit your specific needs.
This product finds extensive applications across multiple industry verticals, including Oil & Gas, Petrochemical, Chemical, Power, and Pharmaceutical sectors. Our hinged expansion bellows are also critical in Shipbuilding and Water Treatment projects. We have successfully supplied to destinations like the UAE, Saudi Arabia, Qatar, the UK, and the USA, supporting various project types such as EPC, LSTK, and maintenance activities.
At Ferro Fittings and Alloys, we pride ourselves on our commitment to quality, evidenced by our ISO 9001:2015 certification and the availability of EN 10204 3.1 / 3.2 Mill Test Certificates. We conduct in-house tests including PMI, Hydrostatic, Hardness, Impact (Charpy), and UT to guarantee the integrity of our products. Our offerings comply with NACE MR 0175 / ISO 15156 standards for sour service applications. Request a free MTC sample or get a quick quote via WhatsApp.
Choosing Ferro Fittings and Alloys means benefiting from a competitive lead time of just 2–4 weeks, with no minimum order quantity restrictions and readily available stock. We offer FOB Mumbai, CIF, and CFR shipping terms along with full export documentation. For inquiries, please contact us at +91-86550-39959, message 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 Hinged Expansion Bellows 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 |
|---|---|---|---|
| Hinged Expansion Bellows | Stainless Steel (SS304, SS316) | ASTM A240, ASME B31.3 | Used in piping systems to absorb thermal expansion and vibration |
| Hinged Expansion Bellows | Carbon Steel (CS A106, CS A53) | ASTM A106, ASME B36.10 | Applicable in high-pressure and temperature environments |
| Hinged Expansion Bellows | Alloy Steel (SA335 P11, P22) | ASTM A335, ASME B31.1 | Designed for power generation and petrochemical applications |
Ferro Fittings and Alloys specializes in the manufacturing of Hinged Expansion Bellows that are essential components in piping systems, designed to accommodate thermal expansion and absorb vibrations. Our bellows are engineered to meet rigorous standards such as ASTM, ASME, and EN, ensuring high performance and reliability across various applications. We offer a range of sizes and configurations, with dimensions typically ranging from 2" to 24" in diameter, and pressure ratings up to 1500 PSI. Our products undergo stringent in-house testing, including PMI, hardness, and hydrostatic tests, to guarantee quality and compliance with international standards. With ISO 9001:2015 certification and a presence in over 50 countries, we assure quick delivery and availability of stock. Contact us for a quick quote or request a free sample MTC today!
| Material | Stainless Steel (AISI 304 or AISI 316) |
|---|---|
| Grades | ASTM A240, ASTM A276 |
| Standard | ASME B31.3, ASME B16.34 |
| Size Range | 2" to 36" (50 mm to 900 mm) |
| Pressure Rating | Up to 150 psi (10.34 bar) |
| Surface Finish | Ra 0.8 µm (32 µin) or better |
| End Connection | Welded, Flanged, or Threaded |
| Form | Hinged, with internal and external reinforcement |
| Grade / UNS | Common Name | Key Feature | Typical Application |
|---|---|---|---|
| 304 / S30400 | Stainless Steel 304 | Excellent corrosion resistance | Food processing, chemical handling |
| 316 / S31600 | Stainless Steel 316 | Superior corrosion resistance, especially in chloride environments | Marine applications, pharmaceutical industry |
| 321 / S32100 | Stainless Steel 321 | Good high-temperature stability | Aerospace, high-temperature applications |
| Inconel 600 / N06600 | Inconel 600 | High strength and oxidation resistance at elevated temperatures | Gas turbines, nuclear reactors |
| Monel 400 / N04400 | Monel 400 | Excellent resistance to seawater and steam at high temperatures | Marine engineering, chemical processing |
| Size / DN | Pressure Class | Wall Thickness | Length |
|---|---|---|---|
| 50 | 150 | 3.2 mm | 300 mm |
| 80 | 150 | 3.6 mm | 350 mm |
| 100 | 150 | 4.0 mm | 400 mm |
| 150 | 150 | 4.5 mm | 500 mm |
| 200 | 150 | 5.0 mm | 600 mm |
| 250 | 150 | 5.5 mm | 700 mm |
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.08 | 0.15 |
| Manganese (Mn) | 0.30 | 0.60 |
| Silicon (Si) | 0.20 | 0.50 |
| Phosphorus (P) | 0.04 | 0.04 |
| Sulfur (S) | 0.05 | 0.05 |
| Nickel (Ni) | 3.00 | 5.00 |
| Chromium (Cr) | 16.00 | 20.00 |
| Property | Value | Unit | Test Standard |
|---|---|---|---|
| Design Pressure | 2.5 | MPa | ASME B31.3 |
| Design Temperature | 550 | °C | ASME B31.3 |
| Maximum Operating Pressure | 2.0 | MPa | ASME B31.3 |
| Maximum Operating Temperature | 500 | °C | ASME B31.3 |
| Elongation at Break | 15 | % | ASTM E8/E8M |
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Density | 7850 kg/m³ | 490 lb/ft³ |
| Melting Point | 1450 °C | 2642 °F |
| Specific Heat | 500 J/kg·K | 0.12 BTU/lb·°F |
| Thermal Conductivity | 50 W/m·K | 34.5 BTU·in/h·ft²·°F |
| Electrical Resistivity | 0.000001 Ω·m | 0.0000001 Ω·ft |
| Standard | Grade | UNS | Werkstoff Nr. | BS |
|---|---|---|---|---|
| ASTM A312 | TP304 | S30400 | 1.4301 | BS 1449 |
| ASTM A240 | 316L | S31603 | 1.4404 | BS 1449 |
| ASME B16.34 | Alloy 625 | N06625 | 2.4856 | BS 3076 |
At Ferro Fittings and Alloys, we utilize high-grade stainless steel (such as ASTM A312, A316) and carbon steel (ASTM A106) for our hinged expansion bellows. Each batch undergoes a thorough inspection to ensure compliance with international standards and specifications. Our team conducts Positive Material Identification (PMI) to confirm material composition, ensuring only the best materials are used in manufacturing.
The forming and fabrication of hinged expansion bellows involve precision processes such as hydroforming and welding. Our skilled technicians use CNC machines to achieve accurate dimensions, with tolerances maintained within ±0.5 mm. The bellows are designed to accommodate axial movements, with standard sizes ranging from 100 mm to 1200 mm in diameter, suitable for various applications in industries such as oil & gas, petrochemical, and power generation.
| Process | Temperature (°C) | Medium | Purpose |
|---|---|---|---|
| Solution Annealing | 1040-1100 | Air | To enhance ductility and reduce residual stresses |
| Stress Relieving | 600-650 | Air | To relieve internal stresses from welding and forming |
Our hinged expansion bellows undergo rigorous quality inspection and testing, in accordance with standards such as ASME and EN 10204 3.1. We perform tests including Hydrostatic, Impact (Charpy), Radiography, Ultrasonic Testing (UT), Liquid Penetrant Testing (LPT), and Magnetic Particle Testing (MPT) to ensure the reliability and safety of our products. With certifications like ISO 9001:2015 and compliance with PED 97/23/EC, customers can trust in the quality of our products. For quick delivery and stock availability, contact us for a quick quote or request a free sample MTC.
| Grade | Size / Dimension | Price (USD/Kg) | Price (INR/Kg) |
|---|---|---|---|
| SS 304 | DN 50 (2 inch) | $15.00 | ₹1200 |
| SS 304 | DN 100 (4 inch) | $14.50 | ₹1160 |
| SS 316 | DN 150 (6 inch) | $16.00 | ₹1280 |
| SS 316L | DN 200 (8 inch) | $17.50 | ₹1400 |
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 Hinged Expansion Bellows from Ferro Fittings and Alloys. Contact us for prompt delivery at competitive prices.
Ferro Fittings and Alloys exports Hinged Expansion Bellows 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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