API 5L X42 Carbon Steel Pipes Manufacturer in India

API 5L X42 Carbon Steel Pipes Specifications

API 5L X42 Carbon Steel Pipes Standards

Material and Grades of API 5L X42 Carbon Steel Pipes

API 5L grades are named for strength. Grade B (L245) is the base, and the X grades follow: X42, X46, X52, X56, X60, X65, X70 and above. In each case the number is the minimum yield strength in thousands of psi. X42 is the first of the X grades, so it sits just above Grade B.

X42 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 X42 can be as-rolled (R), normalised (N), quenched and tempered (Q) or thermomechanically rolled (M). Tell us which your project calls for, since it affects both toughness and price.

If your line carries sour fluids, tell us at enquiry. PSL 2 pipe can be supplied to the sour service requirements of API 5L and NACE MR0175 / ISO 15156, subject to confirmation of the grade, process and testing for your project.

API 5L X42 vs Grade B vs X52 Pipes: Which Grade Do You Need?

Choose X42 when you want more strength than Grade B without moving to the cost and welding care of X52. Choose Grade B for low-pressure and plant piping. Choose X52 or higher for long, high-pressure transmission lines where the wall saving justifies the cost.

API 5L X42 Carbon Steel Pipes Chemical Composition

Other residual elements follow the limits in the standard.

API 5L X42 Carbon Steel Pipes Mechanical Properties

Indicative Design Pressure of API 5L X42 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 290 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.

API 5L X42 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.

Line pipe sizes, 7.92 mm and 11.13 mm walls

Small and medium sizes, Sch 40 and Sch 80

API 5L X42 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. Because X42 is stronger than Grade B, walls are often a step thinner for the same design pressure.

Typical outside diameter and wall tolerances under API 5L are below.

Pipe is supplied in R1 and R2 random lengths, and we cut and bevel to your drawing.

Testing and Inspection of API 5L X42 Carbon Steel Pipes

Welding and Field Joining of API 5L X42 Carbon Steel Pipes

X42 welds well with the same methods used on other pipeline grades. Most pipelines are joined under API 1104, which sets rules for welder qualification, procedure and testing.

Low-hydrogen processes and consumables are the usual choice, and cellulosic electrodes are often used for root passes in the field. Preheat is rarely needed on thin and medium walls in mild weather, but heavier walls, cold conditions and high joint restraint can call for it. PSL 2 pipe has a carbon equivalent limit, which keeps hardness in the heat-affected zone under control.

Beveled ends are standard for butt welding. If you need a particular bevel angle, root face or land, tell us in your enquiry and we will prepare the ends to match.

Coatings and Finishes of API 5L X42 Carbon Steel Pipes

Common Materials Supplied with API 5L X42 Carbon Steel Pipes

Pipeline projects often require different pipe grades and connecting components to complete an installation. We supply a range of carbon steel products that complement API 5L X42 pipes and meet varying industrial requirements.

API 5L Grade B Pipes: Suitable for pipeline systems where the specified strength and operating conditions meet project needs.

API 5L X46, X52, X56, X60, X65, and X70 Pipes: Available for projects that require different levels of yield strength and pipeline performance.

ASTM A53 Grade B Pipes: Used in general-purpose piping systems across industrial and construction applications.

ASTM A106 Grade B and C Pipes: Designed for seamless piping applications involving elevated operating temperatures within the specified limits.

ASTM A333 Grade 6 Pipes: Suitable for services that require specified toughness at low temperatures.

Carbon Steel Fittings and Flanges: We supply elbows, tees, reducers, caps, and flanges to connect pipe sections and accommodate changes in direction or diameter.

Our range covers essential piping materials for pipeline, energy, and plant projects. When sourcing from API 5L X42 Carbon Steel Pipes Suppliers, customers can match complementary products to their required dimensions, material grades, and applicable standards.

Applications of API 5L X42 Carbon Steel Pipes

• Oil Pipelines: Gathering lines, flowlines and transfer lines for crude and refined products.
• Gas Pipelines: Gas gathering and low to medium-pressure distribution lines.
• Water Transmission: Water mains, raw water 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 X42 Carbon Steel Pipes Manufacturer in India?

You should choose us because we are a certified company with real manufacturing experience. We hold ISO 9001:2015 and TÜV certifications, and we have been in the steel pipe business since 2005. You deal directly with the manufacturer and supplier, which keeps pricing clear and delivery dates honest. As an API 5L X42 Carbon Steel Pipes Manufacturer and Supplier in India, we look after everything from specification review to dispatch.

You should also choose us because we work to your specification, not just the grade name. We confirm PSL level, delivery condition, wall, length range and end finish before we quote. Every length is hydrostatically tested, tensile and flattening or bend results are recorded against the 290 MPa and 415 MPa minimums, and PSL 2 pipe receives Charpy impact testing. The results go on the certificate, so your inspector can verify them against API 5L.

Our range covers a full project. We supply API 5L Grade B and X42 through X70, along with ASTM A53, A106 and A333 pipe, plus carbon steel fittings and flanges, under one set of documents. Pipe can be cut, beveled and coated to your requirements.

Finally, you can choose us because we are used to demanding buyers. Every order includes an EN 10204 3.1 certificate, and 3.2 certification, NDE and third-party inspection are available on request. We export to 85+ countries, so audits, witnessed inspections and export paperwork are part of our everyday work.

Countries We Export API 5L X42 Carbon Steel Pipes To

We supply API 5L X42 Carbon Steel Pipes to customers across 85+ countries, supporting oil and gas, energy, petrochemical, and infrastructure projects. Our export markets span the Middle East, Europe, Asia-Pacific, Africa, and the Americas.

Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain.

Europe: Germany, France, Italy, the United Kingdom, the Netherlands, Spain, and Poland.

Asia-Pacific: Singapore, Malaysia, Indonesia, Thailand, Vietnam, Japan, South Korea, and Australia.

North and South America: USA, Canada, Mexico, Brazil, Chile, and Argentina.

Africa: South Africa, Nigeria, Egypt, Kenya, and Algeria.

South Asia: Bangladesh, Nepal, and Sri Lanka.

We coordinate international shipments with suitable packaging, export documentation, and inspection arrangements based on destination and project requirements. Material test certificates and additional inspection documents are provided according to the agreed order specifications, helping ensure that API 5L X42 Carbon Steel Pipes are supplied with the required documentation for each project.