Leading Supplier, Stockist and Exporter of Plumbing and Pipe Fittings
BB Infras is a trusted, worldwide supplier, stockist and exporter of industrial pipe fittings. For decades we have supplied high-quality butt-weld fittings, threaded fittings, socket weld fittings, flanges, reducers, tees, elbows, crosses, caps and stub ends to industries such as oil & gas, petrochemical, power generation, shipbuilding, chemical processing, and water treatment. Our global logistics capability and consistent stock levels make us a preferred procurement partner for project buyers and distributors.
We maintain a diverse inventory of materials: stainless steels (304, 316 and specialty grades), carbon steels (ASTM A105 / A350), low-alloy steels (e.g. 4140), duplex and super-duplex stainless steels (2205 / 2507), nickel alloys (Inconel® 625), corrosion-resistant alloys (Hastelloy® C276), Monel®, copper alloys (brass & bronze) and engineered non-metallics (PTFE-lined, PVC, CPVC). All products are sourced from certified mills and supplied with factory test certificates (FAT / MTC) on request.
Quality assurance is central to our offering. Every batch is inspected for dimensional accuracy, surface finish, and non-destructive testing where applicable. We adhere to international standards such as ASME/ASTM (B16.9, B16.11, A234, A105, A182), MSS, DIN and EN standards. Our document package includes MTC (3.1 / 3.2), PMI reports for high-alloy materials, and packing lists tailored to export regulations.
BB Infras offers technical support during material selection: we advise on corrosion resistance, temperature limits, pressure ratings and weldability to ensure fittings match the process condition. Stocking common sizes and pressure classes allows us to meet urgent requirements for site shutdowns or last-minute project needs.
Our global export network covers major ports and industrial hubs. We handle customs documentation, export packing (timber crating if required), and route optimization so customers receive parts on schedule. Our supply chain team also offers vendor-managed inventory (VMI) programs and blanket order fulfilment for long-term projects.
Specifications of Buttweld Fittings
| Type | Standard | Material Grades |
|---|---|---|
| Elbow, Tee, Reducer, Cap, Stub End, Bend | ASME B16.9 / B16.28, MSS-SP75 | CS, SS, Alloy Steel, Duplex, Super Duplex, Nickel Alloys |
| Buttweld Ends | ASME B16.25 | All Materials |
| Size Range | NPS 1/2" to 48" | All Schedules (SCH 10 – SCH XXS) |
Chemical Composition
Carbon Steel (ASTM A234 WPB)
| Element | Percentage (%) |
|---|---|
| Carbon | 0.30 max |
| Manganese | 0.29–1.06 |
| Phosphorus | 0.050 max |
| Sulfur | 0.058 max |
| Silicon | 0.10 min |
Stainless Steel (304/316)
| Element | SS304 (%) | SS316 (%) |
|---|---|---|
| Chromium | 18–20 | 16–18 |
| Nickel | 8–10.5 | 10–14 |
| Molybdenum | — | 2–3 |
| Carbon | 0.08 max | 0.08 max |
Mechanical Properties
| Grade | Tensile Strength | Yield Strength | Elongation |
|---|---|---|---|
| A234 WPB | 415 MPa | 240 MPa | 20% |
| SS304/316 | 515 MPa | 205 MPa | 40% |
| Alloy Steel (WP5/WP9) | 415–585 MPa | 205–275 MPa | 20–22% |
Equivalent Grades (Quick Reference)
| Material | Equivalent Standards |
|---|---|
| CS ASTM A234 WPB | EN 10253-2 / WPHY 42/46/52 |
| SS 304 | EN 1.4301 / UNS S30400 |
| SS 316 | EN 1.4401 / UNS S31600 |
| Alloy Steel 11CrMo9-10 | DIN / EN 1.7383 |
| Duplex 2205 | UNS S32205 / EN 1.4462 |
| Super Duplex 2507 | UNS S32750 / EN 1.4410 |
Buttweld Fittings – Dimension Chart (ASME B16.9)
| NPS (inches) | OD (mm) | Wall Thickness (SCH 40) |
|---|---|---|
| 1/2" | 21.3 | 2.77 |
| 1" | 33.4 | 3.38 |
| 2" | 60.3 | 3.91 |
| 4" | 114.3 | 6.02 |
| 8" | 219.1 | 8.18 |
To support buyers, we publish clear specification sheets, material test certificates, and dimension charts for each product family. If you need custom machining, special end-preparations, or heat-treatment (quenching & tempering for alloy steels), BB Infras can manage these value-added services before despatch.
Uses of Buttweld Pipe Fittings
Buttweld Pipe Fittings are essential components used in piping systems to ensure safe, leak-free, and efficient fluid or gas transfer across various industries. They connect, control, regulate, and support pipelines operating under different temperature and pressure conditions.
1. Oil & Gas Industry
Buttweld Pipe Fittings are widely used in onshore and offshore drilling operations, refinery pipeline systems, gas distribution networks, and high-pressure fluid transfer. Their corrosion resistance and temperature tolerance make them ideal for harsh environments.
2. Petrochemical & Chemical Industry
These fittings are crucial in chemical processing plants, acid/alkali lines, solvent transfer systems, and hazardous chemical handling. Materials are selected based on corrosion resistance and compatibility with chemicals.
3. Power Generation Industry
Buttweld Pipe Fittings are used in boiler lines, steam pipelines, turbine systems, and cooling water networks. They withstand high pressure and extreme temperatures in thermal, nuclear, and renewable energy plants.
4. Water Treatment & Desalination Plants
Applications include RO systems, filtration units, pumping stations, and municipal water supply lines. Fittings provide durability, corrosion resistance, and long-term leak-proof performance.
5. Food & Beverage Industry
Stainless steel sanitary fittings ensure hygienic flow in dairy units, breweries, beverage manufacturing, and food processing systems. They prevent contamination and meet high hygiene standards.
6. Pharmaceutical Industry
Buttweld Pipe Fittings are used in cleanroom piping, purified water systems, drug manufacturing units, and sterile processing operations. They comply with GMP and maintain contamination-free fluid handling.
7. Construction & Infrastructure
Used in firefighting systems, HVAC networks, plumbing systems, and building pipelines. Buttweld Pipe Fittings ensure reliable flow and structural stability across large infrastructure projects.
8. Marine & Shipbuilding
Marine-grade fittings are used in seawater pipelines, ballast systems, and fuel/oil transfer lines. They offer high resistance to corrosion in saltwater environments.
9. Automotive & Aerospace
Essential for fuel injection lines, hydraulic systems, coolant pipelines, and high-pressure circuits. They withstand vibration, heat, and pressure fluctuations in vehicles and aircraft.
10. Mining & Metal Processing
Buttweld Pipe Fittings are used in slurry pipelines, ore processing systems, and high-abrasion environments. Alloy steel fittings provide strength, wear resistance, and durability.
FAQ — Frequently Asked Questions
- Q: What types of buttweld fittings does BB Infras supply?
- A: We supply elbows, tees, reducers, caps, stub ends, crosses, and long/short radius bends in CS, SS, Alloy Steel, Duplex & Nickel Alloy grades.
- Q: What standards do your fittings follow?
- A: Our fittings are manufactured as per ASME B16.9, B16.28, ASTM/ASME codes and EN/DIN/MSS-SP international standards.
- Q: Do you provide test certificates?
- A: Yes, all fittings come with MTC EN 10204 3.1 along with PMI, hydro test, NDT and other reports if required.
- Q: What sizes and schedules are available?
- A: Sizes range from 1/2" to 48" with wall thickness from SCH 10 to SCH XXS and custom heavy-wall fittings available on request.
- Q: Can you supply project-specific or custom-fabricated fittings?
- A: Absolutely. We manufacture special radius elbows, fabricated tees and reducers based on drawings and project needs.
- Q: What is the delivery time?
- A: Stock items dispatch in 2–5 days; non-stock or custom items require 2–6 weeks.
Countries we have exported our products to
Turkey, Thailand, Bulgaria, Serbia, Mexico, Estonia, Trinidad & Tobago,Tunisia, New Zealand, Indonesia, Puerto Rico, Ireland, India, Morocco, Brazil, Lebanon, Hong Kong, Jordan, Ukraine, Switzerland, Czech Republic, Lithuania, Sri Lanka, Greece, Taiwan, Zimbabwe, Algeria, Romania, Mexico, Ghana, Italy, Philippines, Spain, United Kingdom, Finland, Azerbaijan, Japan, Macau, Israel, Saudi Arabia, Kenya, Bhutan, Poland, Poland, Costa Rica, Kuwait, Singapore, Pakistan, France, Colombia, Tibet, Bolivia, Portugal, Iraq, Australia, Kazakhstan, Nepal, Mongolia, Gambia, Malaysia, Chile, Germany, Slovakia, China, Bahrain, Denmark, Angola, Afghanistan, Peru, Austria, Ecuador, Gabon, Croatia, South Africa, Sweden, Chile, Hungary, United Arab Emirates, Argentina, Bangladesh, Oman, Egypt, United States, Belgium, Canada, Namibia, Norway, Qatar, Belarus, Netherlands.
Cities we have supplied our products to
Bengaluru, Vung Tau, Nashik, Jaipur, Navi Mumbai, La Victoria, Al Jubail, Noida, Granada, Doha, Dammam, Ernakulam, Chandigarh, Santiago, Melbourne, Surat, Nagpur, Ranchi, Kanpur, Jakarta, Ahvaz, Indore, Jamshedpur, Muscat, Rajkot, Lahore, Chiyoda, Milan, Hong Kong, Riyadh, Houston, Busan, Calgary, Madrid, Visakhapatnam, Atyrau, Bhopal, Algiers, Colombo, Kolkata, Petaling Jaya, Dallas, London, Cairo, Thiruvananthapuram, Caracas, Howrah, Moscow, Port-of-Spain, Baroda, Mexico City, Gurgaon, Singapore, Aberdeen, Coimbatore, Kuala Lumpur, Perth, Ahmedabad, New York, New Delhi, Manama, Abu Dhabi, Montreal, Jeddah, Pune, Vadodara, Kuwait City, Chennai, Geoje-si, Tehran, Mumbai, Hanoi, Karachi, Pimpri-Chinchwad, Thane, Haryana, Ulsan, Seoul, Dubai, Ho Chi Minh City, Toronto, Hyderabad, Los Angeles, Faridabad, Lagos, Sydney, Courbevoie, Bangkok, Bogota, Rio de Janeiro, Ankara, Al Khobar, Ludhiana, Istanbul, Gimhae-si, Brisbane, Edmonton, Sharjah, Secunderabad.
