Leading Supplier, Stockist and Exporter of Plumbing and Pipe Fittings
BB Infras is one of the most trusted and leading suppliers, stockists, and global exporters of high-quality Carbon Steel and Galvanized (GI) Pipe Fittings. We provide a complete range of butt-weld, forged, threaded, and socket-weld fittings used in oil & gas, construction, plumbing, fire-fighting, shipbuilding, HVAC, and heavy industrial applications. Our fittings are manufactured using premium-grade materials that comply with ASTM, ASME, DIN, BS, and ISO standards, ensuring unmatched durability, corrosion resistance, and long service life.
Carbon Steel Fittings such as ASTM A105, A234 WPB, A106 & A53 are widely used in high-temperature and high-pressure applications. They offer excellent strength, toughness, and weldability, making them suitable for pipelines, boilers, and refineries. BB Infras sources these fittings from reputed mills and maintains large stock for immediate delivery across India, Middle East, Europe, USA, Africa, and South-East Asia.
Galvanized (GI) Pipe Fittings are coated with hot dip zinc, providing superior protection against corrosion, moisture, and harsh environmental conditions. These fittings are widely used in plumbing lines, water systems, sprinkler lines, utility piping, and general engineering applications. BB Infras offers GI Fittings in both malleable cast iron and carbon steel variants as per BS 1387, IS 1239, ASTM A153, and EN standards.
Our Carbon Steel & GI Fittings include elbows, tees, reducers, caps, unions, couplings, nipples, flanges, plug adapters, crosses, and threaded/screwed fittings. Each product undergoes strict quality checks such as hydro testing, hardness testing, chemical & mechanical analysis, and visual/dimensional inspection to ensure compliance with global industry standards.
We also supply customized sizes, heavy-wall fittings, fabricated fittings, OEM-branded GI fittings, and special-purpose industrial connectors as per client drawings. With advanced warehousing, strong sourcing capability, and fast dispatch service, BB Infras has become a preferred partner for EPC contractors, pipe fabricators, maintenance companies, and industrial distributors worldwide.
Specifications (Carbon Steel & GI Fittings)
- Standards: ASTM A105, A106, A53, A234 WPB, ASTM A153, BS 1387, IS 1239, EN 10241
- Types: Butt Weld, Socket Weld, Threaded, Forged, Hot-Dip Galvanized, Malleable Iron
- Sizes: 1/8” to 48”
- Pressure Class: 150#, 300#, 6000#, SCH 10 to SCH 160
- Coating (GI): Hot Dip Zinc Coating 80–120 microns
Chemical Composition
| Element | A105 / A234 WPB | GI (Malleable Iron) |
|---|---|---|
| Carbon (C) | 0.35 max | 2.0–2.9 |
| Manganese (Mn) | 0.6–1.05 | 0.4–0.8 |
| Phosphorus (P) | 0.035 max | 0.15 max |
| Sulfur (S) | 0.040 max | 0.08 max |
| Silicon (Si) | 0.10–0.35 | 1.0–1.8 |
Mechanical Properties
| Property | A105 / A234 WPB | GI (Malleable Iron) |
|---|---|---|
| Tensile Strength | 485 MPa min | 300 MPa avg |
| Yield Strength | 250 MPa min | 200 MPa avg |
| Elongation | 22% min | 10–15% |
| Hardness | 187 HB max | 130–150 HB |
Equivalent Grades
| Material | Equivalent Grades |
|---|---|
| Carbon Steel A105 | SA105, C22.8, EN 1.0460 |
| A234 WPB | WPB / WPC / WPL6 |
| GI Malleable Iron | EN-GJMB-350-10 / ASTM A197 |
| Carbon Steel A106 | EN 10216-2 / DIN 17175 |
| A53 Grade B | EN S195T / BS 1387 Medium |
Dimension Chart (Common Sizes)
| NPS | Outside Diameter (mm) | Wall Thickness (mm) | Suitable For |
|---|---|---|---|
| 1/2" | 21.3 | 2.8 | GI / CS fittings |
| 1" | 33.4 | 3.4 | GI / CS fittings |
| 2" | 60.3 | 3.9 | Heavy duty lines |
| 4" | 114.3 | 8.0 | Industrial pipelines |
| 6" | 168.3 | 10.0 | High pressure |
Whether you require carbon steel butt-weld fittings for high-temperature pipelines or galvanized threaded fittings for plumbing networks, BB Infras ensures reliable supply, competitive pricing, and international-standard quality. Our dedicated technical team ensures you receive the correct fitting grade, specification, and material suitable for your application needs.
BB Infras continues to expand its global footprint through consistent quality, on-time delivery, and strong customer support. We are committed to providing world-class Carbon Steel & Galvanized Fittings to major industries with excellence and reliability.
Uses of Carbon Steel & Galvanized Fittings
Carbon Steel & Galvanized 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
Carbon Steel & Galvanized 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
Carbon Steel & Galvanized 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
Carbon Steel & Galvanized 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. Carbon Steel & Galvanized 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
Carbon Steel & Galvanized 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 Carbon Steel & Galvanized Fittings do you supply?
- A: BB Infras supplies Carbon Steel Butt-Weld, Socket-Weld, Threaded, Forged, Hot-Dip Galvanized (GI) Fittings including elbows, tees, reducers, couplings, unions, crosses, nipples, flanges and adaptors in all standard sizes and pressure classes.
- Q: Which material standards do your fittings comply with?
- A: Our Carbon Steel fittings follow ASTM A105, A234 WPB, A53 & A106 standards, while Galvanized (GI) fittings follow BS 1387, IS 1239, ASTM A153 and EN 10241. We provide fittings as per ASME, DIN, ISO & MSS-SP specifications.
- Q: Do your fittings come with test certificates?
- A: Yes. All fittings are supplied with MTC EN 10204 3.1. On request, we also provide PMI reports, hydro test reports, hardness test, and NDT such as UT/RT/DP as required for project documentation.
- Q: Are Galvanized (GI) fittings corrosion-resistant?
- A: Absolutely. Hot-dip zinc coating (80–120 microns) provides strong resistance against oxidation, moisture, and environmental corrosion—making GI fittings ideal for plumbing, water systems, and outdoor pipelines.
- Q: What sizes are available for Carbon Steel & GI fittings?
- A: Standard sizes range from 1/8" to 48". Threaded GI fittings are typically available up to 6", while carbon steel butt-weld fittings can be supplied up to 48" in SCH 10 to SCH 160 and XXS.
- Q: Do you offer customized or fabricated fittings?
- A: Yes. BB Infras manufactures and supplies custom-size reducers, heavy-wall fittings, special radius elbows, fabricated tees, and OEM GI fittings based on drawings or project requirements.
- Q: What is the typical delivery time?
- A: Stock items are dispatched within 2–5 working days. Bulk orders or non-stock materials may require 2–6 weeks. We also offer express delivery for urgent requirements.
- Q: How can I get a quotation?
- A: Share details such as fitting type, size, material grade, end connection, class rating, quantity, and delivery location. Our team will respond promptly with a competitive quotation.
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.
