Leading Supplier, Stockist and Exporter of Round Bars
BB Infras is recognized as one of the most trusted and leading suppliers, stockists, and exporters of high-quality Round Bars in India and across global markets. We offer a comprehensive range of round bars manufactured using premium raw materials, ensuring long-lasting performance, high strength, and superior corrosion resistance. Our round bars are widely used in engineering, construction, petrochemical, manufacturing, heavy industries, and precision machining applications.
Being a customer-centric organization, BB Infras ensures that each round bar is manufactured according to international standards such as ASTM, ASME, EN, DIN, JIS, and ISO. We supply Stainless Steel Round Bars, Alloy Steel Round Bars, Carbon Steel Round Bars, Duplex & Super Duplex Round Bars, Copper & Brass Round Bars, Nickel Alloy Round Bars, Titanium & Aluminum Round Bars in various diameters, lengths, tolerance classes, and finishes such as bright, black, hot rolled, cold drawn, and centerless ground.
Our round bars come with excellent mechanical properties such as high tensile strength, ductility, high-temperature resistance, and wear resistance, making them ideal for both general and critical industrial applications. We maintain a large inventory to support bulk orders with quick delivery at competitive prices.
BB Infras also provides round bars with specific customization such as cut-to-length, precision machining, threading, and surface finishing as per client requirements. Our products undergo strict testing and inspection such as ultrasonic testing, hardness testing, PMI testing, and dimensional checks to ensure flawless quality.
We export round bars to more than 25+ countries including the Middle East, Europe, Africa, and Southeast Asia. Whether you require round bars for machining components, shafts, fasteners manufacturing, construction, or oil & gas projects, BB Infras is your one-stop trusted sourcing partner.
Specifications of Round Bars
| Material | Standards | Grades |
|---|---|---|
| Stainless Steel | ASTM A276 / A479 | 304, 304L, 316, 316L, 321, 347, 310, 904L |
| Carbon Steel | ASTM A105 / A36 / A675 | C45, A105, A350 LF2 |
| Alloy Steel | ASTM A182 / A322 | 4140, 4130, EN19, EN24, 42CrMo4 |
| Duplex / Super Duplex | ASTM A276 / A479 | S31803, S32205, S32750, S32760 |
| Copper & Brass | ASTM B62 / B111 | C110, C260, C360 |
| Aluminum | ASTM B211 | 6061, 6082, 7075 |
| Nickel Alloys | ASTM B160 / B164 | Inconel 600, 625, 718, Monel 400, K500, Hastelloy C276 |
| Titanium | ASTM B348 | Grade 2, Grade 5, Grade 7 |
Chemical Composition (General Range)
| Material | C% | Mn% | Si% | Cr% | Ni% | Mo% |
|---|---|---|---|---|---|---|
| SS 304 / 316 | 0.08 max | 2.0 | 1.0 | 18–20 | 8–12 | 0–2.5 |
| CS C45 | 0.45 | 0.8 | 0.3 | — | — | — |
| Alloy Steel 4140 | 0.40 | 1.0 | 0.3 | 1.1 | 0.25 | 0.2 |
| Duplex 2205 | 0.03 | 2.0 | 1.0 | 22 | 5 | 3.0 |
| Nickel Alloy 625 | 0.10 | 0.5 | 0.5 | 21 | 58 | 9 |
Mechanical Properties
| Material | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness |
|---|---|---|---|---|
| SS 304 | 520 | 210 | 40 | 180 HB |
| CS C45 | 600 | 355 | 20 | 200 HB |
| Alloy Steel 4140 | 655 | 415 | 25 | 260 HB |
| Duplex 2205 | 620 | 450 | 25 | 290 HB |
| Inconel 625 | 830 | 414 | 30 | 220 HB |
Equivalent Grades
| Material | UNS | Werkstoff | EN | JIS |
|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | X5CrNi18-10 | SUS 304 |
| SS 316 | S31600 | 1.4401 | X5CrNiMo17-12-2 | SUS 316 |
| Alloy Steel 4140 | G41400 | 1.7225 | 42CrMo4 | SCM440 |
| Duplex 2205 | S32205 | 1.4462 | X2CrNiMoN22-5-3 | SUS 329J3L |
| Inconel 625 | N06625 | 2.4856 | — | — |
Round Bar Dimension Chart (mm)
| Diameter (mm) | Standard Length (mm) | Tolerance |
|---|---|---|
| 6 – 25 | 3000 / 6000 | h9 / h11 |
| 26 – 50 | 3000 / 6000 | h9 / h10 |
| 51 – 100 | 3000 / 6000 | h10 |
| 101 – 200 | 3000 / 6000 | h11 |
Our continued commitment to quality, reliability, customer satisfaction, and timely delivery has allowed us to build a strong presence in domestic as well as international markets. BB Infras ensures that every round bar meets industry demands and exceeds client expectations in durability, corrosion resistance, and performance.
Uses of Round Bars
Round Bars 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
Round Bars 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
Round Bars 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
Round Bars 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. Round Bars 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
Round Bars 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 Round Bars do you supply?
- A: BB Infras supplies Hot Rolled, Cold Drawn, Bright Bars, Black Bars, Peeled Bars, Centerless Ground Bars, Forged Bars, and Precision Machined Round Bars.
- Q: Which materials are available for Round Bars?
- A: Stainless Steel (304/304L/316/316L/321/310/904L), Carbon Steel (C45/A105), Alloy Steel (EN19/EN24/4130/4140/42CrMo4), Duplex & Super Duplex (2205/2507), Copper, Brass, Aluminum (6061/6082/7075), Titanium, and Nickel Alloys (Inconel, Monel, Hastelloy).
- Q: Do you provide test certificates and inspection reports?
- A: Yes — all round bars are supplied with MTC (EN 10204 3.1/3.2). Additional testing like UT, RT, Hardness Test, PMI, Chemical & Mechanical Testing is available on request.
- Q: Can you provide customized lengths and machining?
- A: Yes. BB Infras offers cut-to-length, threading, facing, turning, peeling, grinding, chamfering, and other value-added machining services.
- Q: What tolerances are available?
- A: Round Bars are supplied in tolerance classes such as h8, h9, h10, h11, and special tolerances as per customer or ASTM/EN standards.
- Q: Do you export Round Bars internationally?
- A: Yes — BB Infras exports to the Middle East, Europe, Africa, Asia, and American markets with export-quality packing and complete documentation.
- Q: What information is required for a quotation?
- A: Provide diameter, length, material grade, finish (bright/black), quantity, tolerance, and delivery location — we will send a formal quotation with best prices and lead time.
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.
