Leading Supplier, Stockist and Exporter of Pipes and Tubes
BB Infras is a leading supplier, stockist and exporter of industrial pipes and tubes for oil & gas, petrochemical, power, construction and general engineering applications. We maintain extensive ready stock of seamless and welded pipes across a wide range of materials, sizes and schedules from our Mumbai warehouse.
Our pipe and tube range covers all manufacturing methods — Seamless (SMLS), Electric Resistance Welded (ERW), Electric Fusion Welded (EFW), Longitudinal Submerged Arc Welded (LSAW), and Spiral Welded — to international standards including ASTM, API, IS, EN and JIS.
Available in Carbon Steel (ASTM A106, A53, A333), Alloy Steel (ASTM A335 P5/P9/P11/P22/P91), Stainless Steel (ASTM A312 TP304/316/321), Duplex & Super Duplex (UNS S31803/S32750), Nickel Alloys, and Titanium. Sizes from ⅛" NB to 48" NB; schedules SCH 10, 20, 40, 80, 160, XXS and custom.
Pipe Types and Standards
| Type | Standard | Size Range |
|---|---|---|
| Seamless Carbon Steel Pipe | ASTM A106 Gr.B, ASTM A53 Gr.B | ½" – 24" NB |
| Seamless Alloy Steel Pipe | ASTM A335 P5/P9/P11/P22/P91 | ½" – 24" NB |
| Seamless Stainless Steel Pipe | ASTM A312 TP304/304L/316/316L/321 | ¼" – 24" NB |
| ERW Pipe (Carbon Steel) | ASTM A53 Gr.B, IS 1239, API 5L | ½" – 24" NB |
| API 5L Line Pipe | API 5L Gr.B / X42 / X52 / X60 / X65 / X70 | 2" – 48" NB |
| LSAW / SAW Pipe | ASTM A671, API 5L, IS 3589 | 16" – 100" NB |
| Galvanized Steel Pipe | IS 1239, BS 1387, ASTM A53 | ½" – 6" NB |
Mechanical Properties (Typical)
| Grade | Yield Strength | Tensile Strength | Elongation |
|---|---|---|---|
| ASTM A106 Gr.B | 240 MPa min | 415 MPa min | 30% min |
| API 5L Gr.B | 245 MPa min | 415 MPa min | 21% min |
| API 5L X52 | 360 MPa min | 460 MPa min | 21% min |
| API 5L X65 | 450 MPa min | 535 MPa min | 18% min |
| ASTM A312 TP316L | 170 MPa min | 485 MPa min | 35% min |
Frequently Asked Questions
- Q: What is the difference between seamless and ERW pipes?
- A: Seamless pipes are formed without a weld seam, offering superior pressure rating and reliability for high-temperature/high-pressure service. ERW pipes are welded longitudinally and are more cost-effective for lower-pressure applications.
- Q: What schedules do you stock?
- A: We stock SCH 10, 20, 40, 80, 120, 160, and XXS. Special schedules and custom wall thicknesses are available on order.
- Q: Do you supply pipes with MTC?
- A: Yes. All pipes are supplied with EN 10204 3.1 MTC. Hydrostatic test reports, UT/RT results, dimensional inspection and third-party certificates are available.
- Q: Can you supply cut-to-length pipes?
- A: Yes — we offer cut-to-length, bevelling, threading and galvanizing services. Minimum order and lead time varies by size and material.
