API 5L Grade B Carbon Steel Pipes Manufacturer in India
API 5L Grade B Carbon Steel Pipes Manufacturer in India
Sachiya Steel International is a leading API 5L Grade B Carbon Steel Pipes Manufacturer in India, supplying line pipes for oil and gas pipelines, energy projects, and industrial applications. Established in 2005, we hold ISO 9001:2015 and TÜV certifications and offer seamless and welded pipes in PSL 1 and PSL 2 specifications. Our range covers sizes from 1/8 inch to 24 inches, with larger sizes available on request, along with plain or beveled ends and different surface finishes.
We conduct applicable hydrostatic, chemical, and mechanical tests to meet API 5L requirements, with additional Charpy impact testing for PSL 2 where specified. Each order includes an EN 10204 Type 3.1 material test certificate for traceability. With exports to 85+ countries, we support international projects through specification-based supply, inspection coordination, and export documentation. Share your required pipe size, wall thickness, PSL level, and delivery condition to request a quotation tailored to your project.
What Are API 5L Grade B Carbon Steel Pipes?
API 5L Grade B Carbon Steel Pipes are designed for pipeline systems that transport oil, natural gas, and water across various industries. Manufactured according to API Specification 5L, these pipes meet established requirements for line pipe applications, with ISO 3183 covering the corresponding international standard. Grade B offers a minimum yield strength of 245 MPa and is also known as L245 under the ISO designation. Its strength and suitability for pipeline service make it a widely used option for oil and gas transportation projects.
API 5L Grade B Carbon Steel Pipes
High-quality API 5L Grade B Carbon Steel Pipes manufactured for demanding industrial and pipeline applications across oil & gas, chemical, petrochemical, power generation and construction.Available in multiple sizes, wall thicknesses, grades and manufacturing specifications.
Why Choose API 5L Grade B Carbon Steel Pipes?
API 5L Grade B Carbon Steel Pipes are widely used in pipeline projects because they offer a practical balance of strength, durability, and fabrication flexibility. Manufactured to API 5L requirements, these pipes suit various oil, gas, and water transportation systems when selected according to the operating conditions.
- Reliable Strength: With a minimum yield strength of 245 MPa, Grade B pipes meet the strength requirements for many standard pipeline applications.
- Versatile Manufacturing Options: Available in seamless and welded forms to suit different pipeline designs and project specifications.
- Suitable for Pipeline Transport: Commonly used to transport oil, natural gas, and water in industrial and energy infrastructure.
- Flexible Specification Choices: Available in PSL 1 and PSL 2 options, depending on project requirements and the required level of specification.
- Multiple Sizes and Finishes: Offered in different dimensions, wall thicknesses, end preparations, and surface finishes to meet installation needs.
- Quality Testing and Traceability: Chemical analysis, mechanical testing, and hydrostatic testing help verify compliance with the applicable API 5L requirements.
These features make API 5L Grade B Carbon Steel Pipes a practical choice for pipeline projects that require specified material properties, suitable manufacturing options, and compliance with relevant industry standards.
Types of API 5L Grade B Carbon Steel Pipes
As an API 5L Grade B Carbon Steel Pipes Manufacturer, we offer different pipe types, product specification levels, and surface finishes to meet pipeline project requirements. The suitable option depends on pipe dimensions, operating conditions, and applicable API 5L specifications.
- Seamless Pipes: Manufactured without a weld seam and available for pipeline applications requiring specified strength and wall thickness.
- HFW (ERW) Pipes: Produced by high-frequency welding, these pipes offer an economical option for suitable pipeline applications.
- SAW Pipes (LSAW and SSAW): Manufactured using submerged arc welding, with longitudinal or spiral seams for applications requiring larger pipe diameters.
- PSL 1 Pipes: Manufactured to the standard product specification level defined by API 5L.
- PSL 2 Pipes: Meet additional requirements for chemical composition, mechanical properties, and testing compared with PSL 1.
- Beveled-End Pipes: Supplied with prepared ends to facilitate butt-welded connections during pipeline installation.
- Coated Pipes: Available with suitable varnish, epoxy, or three-layer polyethylene (3LPE) coatings, subject to project requirements, to help protect against corrosion.
Our API 5L Grade B Carbon Steel Pipes are available in different manufacturing types and specifications to suit pipeline design, installation, and service requirements.
Types of Pipes & Tubes
Explore our range of industrial pipes and tubes, manufactured for different applications, materials, specifications and engineering requirements.
Pipes and Tubes
→
Seamless Pipes
→
ERW Pipes
→
LSAW Pipes
→
SSAW Pipes
→
Seamless Tubes
→
Welded Pipes
→
Welded Tubes
→
Box Pipes
→
Box Tubes
→
Brass Pipes
→
Heat Exchanger Tubes
→
Boiler Tubes
→
Aluminium Pipes
→
Carbon Steel Seamless Pipes
→
Carbon Steel Pipe
→
Stainless Steel Pipe
→
Alloy Steel Pipe
→
Duplex Steel Pipe
→
Super Duplex Steel Pipe
→
Nickel Alloy Pipe
→
Copper Nickel Alloy Pipe
→Get Certified API 5L Grade B Carbon Steel Pipes at Competitive Factory Prices
API 5L Grade B Carbon Steel Pipes Specifications
| Parameter | Details |
|---|---|
| Material | API 5L Grade B / ISO 3183 L245 |
| Product levels | PSL 1 and PSL 2 |
| Product forms | Seamless, HFW (ERW), SAW |
| Pipe size | ⅛" NPS to 24" NPS, larger on request |
| Wall thickness | 2.11 mm to 50 mm |
| Delivery condition | PSL 1: as-rolled or normalised. PSL 2: BR, BN, BQ or BM |
| Length | R1 (about 4.9 to 7.6 m), R2 (about 10.7 to 13.7 m), cut length on request |
| Ends | Plain, beveled, threaded and coupled on small sizes |
| Surface | Black, varnished, epoxy or 3LPE coated |
| Tests | Hydrostatic, tensile, flattening or bend, chemical analysis |
| PSL 2 tests | Charpy impact at 0°C, weld NDT, product analysis |
| Documents | EN 10204 3.1 mill certificate, inspection reports |
API 5L Grade B Carbon Steel Pipes Standards
| Standard | What it covers |
|---|---|
| API Specification 5L | Line pipe for oil, gas and water pipeline transportation |
| ISO 3183 | The international version of API 5L |
| ASME B36.10M | Dimensions of welded and seamless steel pipe |
| ASME B31.4 | Pipeline transportation systems for liquids |
| ASME B31.8 | Gas transmission and distribution piping |
| ASME B31.3 | Process piping |
| ASME B16.25 | Butt-welding end preparation |
| API 1104 | Welding of pipelines and related facilities |
Material and Grades of API 5L Grade B Carbon Steel Pipes
API 5L grades are named for strength. Grade A (L210) is the lowest, Grade B (L245) comes next, and the X grades follow: X42, X46, X52, X56, X60, X65, X70 and above. The number after X is the minimum yield strength in thousands of psi, so X42 has a minimum yield of 42,000 psi. Grade B is the only non-X grade above A, and its yield is about 35,500 psi.
Grade B is available at two product specification levels. PSL 1 is the basic level with standard chemistry and strength limits. PSL 2 adds tighter chemistry, a range on yield and tensile strength, mandatory impact testing and extra traceability.
Delivery condition matters too. PSL 1 pipe is supplied as-rolled or normalised. PSL 2 Grade B can be as-rolled (BR), normalised (BN), quenched and tempered (BQ) or thermomechanically rolled (BM). Tell us which your project calls for, since the condition affects both toughness and price.
API 5L PSL 1 vs PSL 2 Grade B Pipes: Which Level Do You Need?
| Point | PSL 1 | PSL 2 |
|---|---|---|
| Carbon (max, seamless) | 0.28% | 0.24% |
| Sulphur (max) | 0.030% | 0.015% |
| Phosphorus (max) | 0.030% | 0.025% |
| Carbon equivalent limit | Not specified | 0.43% (IIW) and 0.25% (Pcm) |
| Yield strength | 245 MPa min | 245 to 450 MPa |
| Tensile strength | 415 MPa min | 415 to 760 MPa |
| Charpy impact test | Not required | Required at 0°C |
| Weld seam NDT | Not required | Required |
| Traceability | Heat or lot | Full, by test unit |
| Cost | Lower | Higher |
| Typical use | Water, low-pressure and non-critical lines | Oil and gas, cold climates and critical lines |
Choose PSL 1 for general pipelines, water mains and plant piping where toughness at low temperature is not a concern. Choose PSL 2 for oil and gas transmission, cold-weather service or any line where the operator specifies it. If you are not sure, tell us the design code and operating conditions and we can advise.
API 5L Grade B Carbon Steel Pipes Chemical Composition
| Element | PSL 1 seamless (%) | PSL 1 welded (%) | PSL 2 seamless (%) | PSL 2 welded (%) |
|---|---|---|---|---|
| Carbon (C) | 0.28 max | 0.26 max | 0.24 max | 0.22 max |
| Silicon (Si) | – | – | 0.40 max | 0.45 max |
| Manganese (Mn) | 1.20 max | 1.20 max | 1.20 max | 1.20 max |
| Phosphorus (P) | 0.030 max | 0.030 max | 0.025 max | 0.025 max |
| Sulphur (S) | 0.030 max | 0.030 max | 0.015 max | 0.015 max |
| Niobium + vanadium + titanium | 0.15 max | 0.15 max | 0.15 max | 0.15 max |
| Carbon equivalent (IIW) | – | – | 0.43 max | 0.43 max |
| Carbon equivalent (Pcm) | – | – | 0.25 max | 0.25 max |
Other residual elements follow the limits in the standard.
API 5L Grade B Carbon Steel Pipes Mechanical Properties
| Property | PSL 1 | PSL 2 |
|---|---|---|
| Yield strength | 245 MPa min (35,500 psi) | 245 to 450 MPa |
| Tensile strength | 415 MPa min (60,200 psi) | 415 to 760 MPa |
| Yield to tensile ratio | Not specified | 0.93 max |
| Elongation | Set by the formula in the standard, based on wall thickness and strip width | Same |
| Charpy impact | Not required | Required at 0°C, to the standard minimum |
| Density | About 7.85 g/cm³ | About 7.85 g/cm³ |
| Magnetic response | Magnetic | Magnetic |
Indicative Design Pressure of API 5L Grade B Carbon Steel Pipes
The table gives an indicative design pressure for common large sizes, using the hoop stress formula P = 2 × SMYS × t × F ÷ D, with a minimum yield (SMYS) of 245 MPa and a design factor F of 0.72, as used for liquid pipelines under ASME B31.4. It uses the nominal wall and no corrosion allowance. Gas pipelines under ASME B31.8 use design factors that depend on class location, and temperature and joint factors may also apply. Final design must be carried out by the project designer.
P is design pressure, SMYS is specified minimum yield strength, t is nominal wall thickness, F is design factor and D is outside diameter. The values below are indicative only and must be verified against the applicable pipeline design code.
| NPS | OD (mm) | Wall 9.53 mm (bar) | Wall 12.70 mm (bar) |
|---|---|---|---|
| 10" | 273.1 | 123 | 164 |
| 16" | 406.4 | 83 | 110 |
| 20" | 508.0 | 66 | 88 |
| 36" | 914.4 | 37 | 49 |
API 5L Grade B Carbon Steel Pipes Size and Weight Chart
Theoretical weight is (OD − Wall) × Wall × 0.02466, giving kg per metre with dimensions in mm. Real weight varies slightly within mill tolerance.
OD and wall are in mm. Multiply the result by the pipe length to obtain the total weight.
Line pipe sizes, 9.53 mm and 12.70 mm walls
| NPS | OD (mm) | 9.53 mm wall kg/m | 12.70 mm wall kg/m |
|---|---|---|---|
| 8" | 219.1 | 49.25 | 64.64 |
| 10" | 273.1 | 61.94 | 81.55 |
| 12" | 323.9 | 73.88 | 97.46 |
| 16" | 406.4 | 93.27 | 123.30 |
| 20" | 508.0 | 117.15 | 155.12 |
| 24" | 609.6 | 141.02 | 186.94 |
| 30" | 762.0 | 176.84 | 234.67 |
| 36" | 914.4 | 212.65 | 282.40 |
Small and medium sizes, Sch 40 and Sch 80
| NPS | OD (mm) | Sch 40 wall (mm) | Sch 40 kg/m | Sch 80 wall (mm) | Sch 80 kg/m |
|---|---|---|---|---|---|
| ½" | 21.3 | 2.77 | 1.27 | 3.73 | 1.62 |
| 1" | 33.4 | 3.38 | 2.50 | 4.55 | 3.24 |
| 2" | 60.3 | 3.91 | 5.44 | 5.54 | 7.48 |
| 3" | 88.9 | 5.49 | 11.29 | 7.62 | 15.27 |
| 4" | 114.3 | 6.02 | 16.07 | 8.56 | 22.32 |
| 6" | 168.3 | 7.11 | 28.26 | 10.97 | 42.56 |
API 5L Grade B Carbon Steel Pipes Sizes, Dimensions and Tolerances
Line pipe is ordered by outside diameter, wall thickness and length. Small sizes follow ASME B36.10M schedules, while large sizes are ordered by OD and wall in mm or inches. DN is the metric size for each NPS.
| Size range | Common wall (mm) | Typical use |
|---|---|---|
| NPS 2 to 6 | Sch 40 to Sch 80 | Plant, gathering and utility lines |
| NPS 8 to 12 | 6.35 to 14.27 | Gathering lines, flowlines and process piping |
| NPS 16 to 24 | 7.92 to 19.05 | Pipelines and water mains |
| NPS 30 and above | 9.53 to 25.4 | Transmission lines and large-diameter water mains |
Typical outside diameter and wall tolerances under API 5L are below.
| Item | Tolerance |
|---|---|
| Pipe body OD up to 60.3 mm | ±0.4 mm |
| Pipe body OD above 60.3 mm up to 610 mm | ±0.75% |
| Pipe body OD above 610 mm up to 1422 mm | ±0.5% |
| Wall, seamless, up to 25 mm | +15% / −12.5% |
| Wall, welded, 5 mm up to 15 mm | ±10% |
Pipe is supplied in R1 and R2 random lengths, and we cut and bevel to your drawing.
Testing and Inspection of API 5L Grade B Carbon Steel Pipes
| Test | Purpose |
|---|---|
| Hydrostatic test | Every length is pressure tested to the API 5L requirement to confirm it is leak tight |
| Tensile test | Confirms yield strength, tensile strength and elongation |
| Flattening or guided bend test | Shows the pipe and its weld deform without cracking |
| Chemical analysis | Checks heat and product chemistry against the PSL limits |
| Charpy impact test (PSL 2) | Confirms toughness at 0°C |
| Weld seam NDT | Ultrasonic or other NDT of the weld on welded PSL 2 pipe |
| Dimensional check | Measures OD, wall, length, straightness and out-of-roundness |
| Visual inspection | Looks for surface defects, laps, seams and dents |
| Third-party inspection | On request, to your inspection and test plan |
Coatings and Finishes of API 5L Grade B Carbon Steel Pipes
| Finish | What it is | Where it is used |
|---|---|---|
| Black / mill finish | As-rolled surface with a light oil coat | Pipe to be coated or painted later |
| Varnish coating | Thin protective lacquer | Storage and shipping protection |
| Red oxide primer | Corrosion-protective primer | Pipe that will be painted later |
| Epoxy coating | Epoxy system for stronger protection | Buried and wet environments, on request |
| 3LPE coating | Three-layer polyethylene coating | Buried pipelines, on request |
Common Materials Supplied with API 5L Grade B Carbon Steel Pipes
We offer a range of carbon steel pipes, fittings, and flanges to support pipeline, plant, and industrial projects. Along with API 5L Grade B pipes, our product range includes other grades and materials selected according to application requirements and project specifications.
API 5L Grade A and X42 to X70 Pipes: Available in different strength grades to meet varying pipeline design and operating requirements.
ASTM A53 Grade A and B Pipes: Seamless and welded pipes for general-purpose piping applications.
ASTM A106 Grade A, B, and C Pipes: Seamless carbon steel pipes designed for high-temperature service.
ASTM A333 Grade 6 Pipes: Suitable for applications requiring carbon steel pipes with specified low-temperature toughness.
Carbon Steel Pipe Fittings: Elbows, tees, reducers, and caps used to connect pipes and create complete piping systems.
Carbon Steel Flanges: Slip-on, weld-neck, and blind flanges used to connect pipes, valves, and equipment.
Our product range helps customers source compatible piping materials for different project requirements. As API 5L Grade B Carbon Steel Pipes Suppliers, we support material selection based on the required grade, dimensions, applicable standards, and service conditions.
Applications of API 5L Grade B Carbon Steel Pipes
- Oil Pipelines: Gathering lines, flowlines and transfer lines for crude and refined products.
- Gas Pipelines: Gas gathering and distribution lines.
- Water Pipelines: Water mains, transmission lines and irrigation systems.
- Refineries and Terminals: Plant, tank farm and utility piping.
- Process Plants: Cooling water, fire water and utility lines.
- Slurry and Mining: Transport lines for slurry and process fluids.
- Offshore and Onshore Facilities: Utility and process piping on platforms and in plants.
- Piling and Structures: Pipe piles, rig supports and structural frames.
Why Choose Us as Your API 5L Grade B Carbon Steel Pipes Manufacturer in India?
We manufacture and export API 5L Grade B Carbon Steel Pipes for oil and gas pipelines, energy projects, and industrial applications. With experience in the steel pipe industry since 2005 and a production capacity of 100 tons per month, we support domestic and international orders with different pipe sizes, specifications, and delivery requirements.
Our product range includes seamless and welded pipes in PSL 1 and PSL 2, with sizes from 1/8 inch to 24 inches and larger sizes available on request. We hold ISO 9001:2015 and TÜV certifications and provide EN 10204 Type 3.1 material test certificates, with additional testing and third-party inspection available upon request, where applicable.
We also supply API 5L pipes in other grades, along with ASTM A53, ASTM A106, and ASTM A333 pipes, carbon steel fittings, and flanges. With exports to 85+ countries, we coordinate inspection requirements, export documentation, and shipment arrangements to meet project specifications. If you are looking for API 5L Grade B Carbon Steel Pipes Suppliers, we can help match your requirements for pipe dimensions, wall thickness, PSL level, and surface finish.
Countries We Export API 5L Grade B Carbon Steel Pipes To
We export to 85+ countries, serving oil and gas, pipeline, refining, power generation and water infrastructure industries.
Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait and Bahrain.
Europe: Germany, Italy, United Kingdom, Netherlands, France, Spain, Belgium and Poland.
Asia-Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan and Australia.
Americas: USA, Canada, Mexico, Brazil and Chile.
Africa: South Africa, Nigeria, Egypt and Kenya.
South Asia: Nepal, Bangladesh and Sri Lanka.
EN 10204 3.1 mill test certificates come with every order. EN 10204 3.2 certification and third-party inspection can be arranged on request. We pack each shipment to suit its route and destination, and we prepare the shipping and export documents your project requires, so international orders move cleanly from our plant to your site.
FAQs
Common questions about API 5L Grade B carbon steel pipes, PSL levels, coatings and supply.
How do PSL 1 and PSL 2 differ?
PSL 2 has tighter chemistry, a range on strength, a carbon equivalent limit and mandatory Charpy impact and weld NDT. PSL 1 is the basic level for general service.
Is API 5L Grade B the same as A106 Grade B or A53 Grade B?
Not exactly. The strength is similar, but each standard has its own rules on manufacture, testing and use. API 5L is for pipelines, A106 for hot seamless service and A53 for general use.
How is Grade B named in ISO 3183?
It is called L245, where the number is the minimum yield strength in MPa. The grade also appears as L245N, L245M or L245Q in some delivery conditions.
How do I calculate the weight of API 5L pipe?
Use (OD − Wall) × Wall × 0.02466, with both values in mm, to get kg per metre. Multiply by length for total weight.
How is the hydrostatic test carried out?
Each length is pressure tested to the value given in API 5L for its size, wall and grade, and held for the required time. The results are recorded on the certificate.
What end finish is used for field welding?
Beveled ends with a 30-degree bevel are standard for butt welding. We can also supply plain ends or threaded and coupled ends on small sizes.
Which coatings can you supply?
Pipe can be supplied black, varnished, primed, epoxy coated or 3LPE coated, depending on your service. Tell us your coating specification at enquiry.
Can pipe be dual certified?
Yes, where the chemistry and properties meet each standard. Pipe can often be certified to API 5L Grade B together with A53 Grade B and A106 Grade B. Tell us at enquiry.
What lengths are available?
Standard random lengths are R1 (about 4.9 to 7.6 m) and R2 (about 10.7 to 13.7 m). We also cut to fixed length on request.
Which documents come with an order?
EN 10204 3.1 mill test certificates are included. Inspection reports and third-party certificates are available on request.
How is API 5L pipe packed for export?
Pipes are bundled with end caps and strapped, with a protective coating applied where needed. Heat numbers are marked on each pipe or bundle for traceability.