Oil and Gas Division

Products –  Oil and Gas Division 

Comprehensive range of pipeline solutions including pipes, fittings, flanges, and valves for the oil and gas industry.

Products we offer

Products we offer

Pipes

Pipes are tubular conduits used to transport fluids (liquids or gases) from one place to another. They come in various materials such as metal (carbon steel, stainless steel, copper), plastic (PVC, CPVC, HDPE), and composite materials. Pipes are available in different sizes and thicknesses depending on the application and required pressure ratings.

Carbon steel pipes: Carbon steel pipes are commonly used in various industries due to their strength, durability, and cost-effectiveness. They come in different grades, each tailored to specific applications and operating conditions. Here are some commonly used carbon steel pipe grades:

  1. ASTM A53/A53M: This standard covers seamless and welded black and hot-dipped galvanized steel pipe in NPS 1/8 to NPS 26 (DN6 to DN 650). It is commonly used for low-pressure plumbing and for transportation of water, gas, air, and steam.
  2. ASTM A106/A106M: This specification covers seamless carbon steel pipe for high-temperature service in NPS 1/8 to NPS 48 (DN6 to DN 1200). It is commonly used in refineries, power plants, and boilers for conveying high-temperature and high-pressure fluids.
  3. ASTM A333/A333M: This specification covers seamless and welded steel pipe for low-temperature service down to -150°F (-101°C). It is commonly used in cryogenic applications, such as liquefied natural gas (LNG) plants and low-temperature storage facilities.
  4. ASTM A672/A672M: This specification covers electric-fusion-welded steel pipe for high-pressure service at moderate temperatures. It is commonly used in power plant piping systems, where high-pressure and elevated temperatures are encountered.
  5. API 5L: This specification covers seamless and welded steel line pipe for pipeline transportation systems in the petroleum and natural gas industries. It includes various grades such as API 5L Grade B, X42, X46, X52, X56, X60, X65, X70, X80, etc., with different yield strengths and chemical compositions.
  6. ASTM A500/A500M: This specification covers cold-formed welded and seamless carbon steel structural tubing in round, square, and rectangular shapes. It is commonly used in structural applications such as buildings, bridges, and highways.
  7. ASTM A1065/A1065M: This specification covers cold-formed electric resistance welded (ERW) carbon steel structural tubing in round and shapes. It is used in structural applications requiring high strength and good weldability.

 

Stainless steel pipes: Stainless steel pipes are widely used in various industries due to their corrosion resistance, durability, and strength. There are numerous grades of stainless steel, each with its own unique properties suited for specific applications. Here are some common stainless steel pipe grades:

  • 304/304L Stainless Steel: This is the most widely used austenitic stainless-steel grade. It offers good corrosion resistance, excellent weldability, and formability. It is commonly used in applications such as food processing equipment, architectural structures, and chemical processing.
  • 316/316L Stainless Steel: Known for its superior corrosion resistance, especially in chloride environments, 316/316L stainless steel is often used in marine applications, chemical processing, and medical devices. It also offers excellent strength and high-temperature properties.
  • 321/321H Stainless Steel: This grade is stabilized with titanium to prevent carbide precipitation during welding. It offers excellent resistance to intergranular corrosion and is suitable for applications involving elevated temperatures, such as aircraft exhaust systems, jet engine parts, and heat exchangers.
  • 310/310S Stainless Steel: With high-temperature strength and excellent resistance to oxidation and sulfidation, 310/310S stainless steel is commonly used in furnace parts, heat treatment baskets, and other high-temperature applications.

 

Duplex and super duplex stainless-steel pipes: Duplex and super duplex stainless-steel pipes are highly sought after for their exceptional corrosion resistance and mechanical properties, making them ideal for applications in aggressive environments such as offshore oil and gas production, chemical processing, and marine engineering. Here are some common grades of duplex and super duplex pipes:

  • Duplex Stainless-Steel Grades:
    • UNS S31803 (Duplex 2205): This is one of the most widely used duplex stainless-steel grades. It offers a balanced combination of high strength and excellent corrosion resistance, particularly in chloride-containing environments. Duplex 2205 is suitable for a wide range of applications, including chemical processing, pulp and paper production, and marine engineering.
    • UNS S32205: Like S31803, UNS S32205 offers enhanced resistance to stress corrosion cracking and higher strength. It is often preferred for applications requiring increased durability and resistance to pitting and crevice corrosion.
    • UNS S32750 (Duplex 2507): While technically a super duplex grade, Duplex 2507 is sometimes categorized within the duplex family. It provides superior corrosion resistance compared to standard duplex grades, especially in highly corrosive environments such as seawater and acidic solutions. Duplex 2507 is commonly used in offshore oil and gas platforms, chemical processing plants, and desalination facilities.
  • Super Duplex Stainless Steel Grades:
    • UNS S32750 (Super Duplex 2507): This is one of the most widely used super duplex stainless steel grades. It offers excellent corrosion resistance, high strength, and good weldability. Super Duplex 2507 is highly resistant to pitting and crevice corrosion, making it suitable for demanding applications in the oil and gas industry, chemical processing, and marine engineering.
    • UNS S32760 (Super Duplex Zeron 100): Super Duplex Zeron 100 offers enhanced corrosion resistance and mechanical properties compared to Duplex 2507. It is particularly well-suited for applications involving aggressive media, high pressures, and elevated temperatures. Super Duplex Zeron 100 is commonly used in subsea equipment, heat exchangers, and chemical processing equipment.

 

These duplex and super duplex stainless-steel grades offer a unique combination of high strength, excellent corrosion resistance, and durability, making them preferred materials for critical applications in challenging environments. The selection of the appropriate grade depends on factors such as the specific application, operating conditions, required corrosion resistance, and mechanical properties.

Buttweld Fittings
Buttweld Fittings are used to connect and join sections of pipes or tubes together, or to change the direction or flow of the fluid within the piping system. Common types of buttweld fittings include elbows, tees, reducers, and caps. Buttweld fittings are available in various materials, shapes, and sizes to accommodate different piping requirements.

Manufacturer Names:
  • Benkan Thailand
  • TK Korea
  • Erne Austria
  • TTU Thailand
  • Awaji Thailand

Carbon Steel:
  • ASTM A234 WPB (W = weldable, P = pressure, B = black): The most common grade for carbon steel buttweld fittings. Suitable for general-purpose applications in low to medium pressure systems.

Stainless Steel:
  • ASTM A403 WP304/304L, WP316/316L: Grades commonly used for stainless steel buttweld fittings. These grades offer excellent corrosion resistance and are suitable for applications involving corrosive fluids or environments.

Alloy Steel:
  • ASTM A234 WP5, WP9, WP11, WP22, WP91: Grades used for alloy steel buttweld fittings. Alloy steel fittings are suitable for high-temperature and high-pressure applications where corrosion resistance and strength are required.

Duplex Steel:
  • ASTM A815 UNS S31803, S32205: Grades used for duplex steel buttweld fittings. Duplex stainless steel offers a combination of high strength and corrosion resistance, making it suitable for demanding applications.

Nickel Alloy:
  • ASTM B366 UNS N04400 (Monel 400), UNS N06600 (Inconel 600), UNS N08800 (Incoloy 800), UNS N08825 (Incoloy 825): Grades commonly used for nickel alloy buttweld fittings. These fittings are used in applications where resistance to high temperatures and corrosive environments is critical.

Titanium:
  • ASTM B363 Grade 2: Commonly used for titanium buttweld fittings. Titanium fittings offer excellent corrosion resistance, especially in highly corrosive environments.

Copper Nickel:
  • ASTM B466 UNS C70600 (90/10 Cu-Ni), UNS C71500 (70/30 Cu-Ni): Grades used for copper nickel buttweld fittings. These fittings are widely used in marine and offshore applications due to their excellent resistance to seawater corrosion.

Flanges

Flanges are flat, circular disks with evenly spaced bolt holes around the perimeter. They are used to connect pipes, valves, pumps, and other equipment to form a piping system. Flanges provide a means for easy assembly, disassembly, and maintenance of the system. They come in different types such as weld neck, slip-on, socket weld, and blind flanges, and are available in various materials to suit different operating conditions.

Manufacturer Names:

  • Metalfar Italy
  • Ulma Spain
  • Officine Santafede Italy
  • Wilhelm Mass Germany
  • Melesi Italy
  • Viraj India
  • Chandan Steel India


Carbon Steel Flanges:

  • ASTM A105: This grade is the most common carbon steel grade for forged carbon steel flanges. It’s suitable for high-temperature and high-pressure applications.


Stainless Steel Flanges:

  • ASTM A182 F304/304L, F316/316L: These grades are common for stainless steel flanges and are suitable for corrosive environments and high-temperature applications.


Alloy Steel Flanges:

  • ASTM A182 F11, F22: These grades are commonly used for alloy steel flanges in high-temperature and high-pressure applications, particularly in industries like oil and gas.


Duplex and Super Duplex Stainless Steel Flanges:

  • Grades like ASTM A182 F51 (Duplex) and ASTM A182 F53/F55 (Super Duplex) are used for applications where high corrosion resistance and strength are required, such as in offshore and marine environments.


Nickel Alloy Flanges:

  • Grades such as Inconel, Monel, and Hastelloy have various specifications (e.g., ASTM B564 for Hastelloy), and they are used in highly corrosive environments where standard materials may not suffice.


Copper Nickel Flanges:

  • ASTM B151: These flanges are made from copper-nickel alloys and are often used in marine and offshore applications due to their resistance to seawater corrosion.


Titanium Flanges:

  • ASTM B381: Titanium flanges are used in applications requiring high strength, corrosion resistance, and low weight. They’re commonly found in aerospace, chemical processing, and marine industries.

Forged Fittings

Forged fittings are fittings that are manufactured by forging solid pieces of metal into desired shapes. They are known for their strength, durability, and resistance to high temperatures and pressures. Common types of forged fittings include elbows, tees, crosses, couplings, and unions. Forged fittings are often used in high-pressure piping systems such as oil and gas, chemical processing, and power generation industries.

Manufacturer Name:

  • Delcorte France
  • Mega Italy
  • Lame Italy
  • Bothwell Taiwan

Forged fittings, like flanges, are also classified by their material grade, indicating their composition and suitability for different applications. Here are some common grades for forged fittings:

Carbon Steel Forged Fittings:

  • ASTM A105/A105N: This is the most common grade for carbon steel forged fittings. It’s suitable for high-temperature and high-pressure applications in industries such as oil and gas, petrochemicals, and power generation.


Alloy Steel Forged Fittings:

  • ASTM A182 F5, F9, F11, F22: These grades are commonly used for alloy steel forged fittings and are suitable for applications requiring high strength and resistance to corrosion and oxidation at elevated temperatures.


Stainless Steel Forged Fittings:

  • ASTM A182 F304/304L, F316/316L: These grades are commonly used for stainless steel forged fittings and are suitable for corrosive environments and high-temperature applications in industries such as chemical processing, food processing, and pharmaceuticals.


Duplex and Super Duplex Stainless Steel Forged Fittings:

  • Grades like ASTM A182 F51 (Duplex) and ASTM A182 F53/F55 (Super Duplex) are used for forged fittings in applications where high corrosion resistance and strength are required, such as in offshore and marine environments.


Nickel Alloy Forged Fittings:

  • Grades such as Inconel, Monel, and Hastelloy have various specifications (e.g., ASTM B564 for Hastelloy), and they are used in highly corrosive environments where standard materials may not suffice. These fittings are common in industries such as chemical processing, aerospace, and marine.


Copper Nickel Forged Fittings:

  • ASTM B122/B122M: Copper nickel forged fittings are used in applications where resistance to seawater corrosion is required, such as in marine and offshore industries.


Titanium Forged Fittings:

  • ASTM B381: Titanium forged fittings are used in applications requiring high strength, corrosion resistance, and low weight. They find applications in aerospace, chemical processing, and marine industries.

Valves

Valves are devices used to control the flow of fluids within a piping system by opening, closing, or partially obstructing the passage of the fluid. They are essential for regulating flow rates, controlling pressure, and isolating sections of the piping system. Valves come in various types such as gate valves, globe valves, ball valves, butterfly valves, and check valves, each suited for specific applications and operating conditions.

1. Cast Iron Valves: Cast iron valves are generally the most economical option and are suitable for lower-pressure applications. They are commonly used in water supply, HVAC systems, and some industrial processes.

2. Ductile Iron Valves: Ductile iron valves offer greater strength and durability compared to cast iron valves. They are suitable for higher-pressure applications such as oil and gas pipelines, power plants, and wastewater treatment plants.

3. Carbon Steel Valves: Carbon steel valves are known for their strength and resistance to corrosion. They are often used in high-pressure and high-temperature applications in industries like oil and gas, petrochemicals, and power generation.

4. Stainless Steel Valves: Stainless steel valves offer excellent corrosion resistance and are commonly used in industries where hygiene and corrosion resistance are critical, such as food and beverage, pharmaceuticals, and chemical processing.

5. Alloy Steel Valves: Alloy steel valves are designed to withstand extreme temperatures and pressures. They are commonly used in demanding applications in industries such as aerospace, nuclear, and chemical processing.

6. Brass Valves: Brass valves are often used in plumbing systems, water supply, and low-pressure applications where corrosion resistance and cost-effectiveness are important factors.

7. Bronze Valves: Bronze valves offer good corrosion resistance and durability. They are commonly used in marine applications, seawater handling, and certain industrial processes.

8. Plastic Valves: Plastic valves, such as PVC, CPVC, and polypropylene valves, are lightweight, corrosion-resistant, and economical. They are suitable for a wide range of applications in industries such as water treatment, chemical processing, and semiconductor manufacturing.

Stud Bolts

Stud bolts, like many fasteners used in industrial applications, are manufactured to various grades or specifications to ensure they meet specific strength, corrosion resistance, and temperature requirements. The most commonly recognized grades of stud bolts include:

  • ASTM A193 Grade B7: This grade of stud bolt is made from alloy steel with a minimum tensile strength of 125 ksi (kilopounds per square inch). ASTM A193 Grade B7 studs are typically used in high-temperature and high-pressure applications, such as in oil refineries, chemical plants, and power generation facilities.

  • ASTM A193 Grade B7M: Similar to Grade B7, Grade B7M is a modified version with stricter Charpy V-notch impact requirements. It is commonly used in applications where impact resistance is critical.

  • ASTM A193 Grade B8: Stud bolts of Grade B8 are made from AISI 304 stainless steel. They are used in applications requiring corrosion resistance and moderate strength at temperatures up to 800°F (427°C).

  • ASTM A193 Grade B8M: This grade is made from AISI 316 stainless steel and offers superior corrosion resistance compared to Grade B8. Grade B8M stud bolts are suitable for use in corrosive environments, such as marine applications and chemical processing plants.

  • ASTM A320 Grade L7: Similar to ASTM A193 Grade B7, Grade L7 is a low alloy steel with a minimum tensile strength of 125 ksi. It is often used in low-temperature applications, such as cryogenic equipment and pressure vessels.

  • ASTM A320 Grade L7M: This is the modified version of Grade L7 with stricter Charpy V-notch impact requirements, suitable for low-temperature service.

  • ASTM A453 Grade 660: Also known as Grade 660, this grade of stud bolt is made from a precipitation-hardening stainless steel alloy. It offers excellent strength at elevated temperatures and is often used in applications requiring high-temperature resistance, such as in gas turbines and exhaust systems.

Gaskets

Gaskets are essential components used to create a seal between two surfaces, preventing leaks of liquids or gases under compression. They come in various types and grades, each suited to different applications based on factors like temperature, pressure, chemical resistance, and sealing efficiency. Here’s an overview of the types and grades of gaskets commonly used:

Types of Gaskets:

  • Non-Metallic Gaskets:

    • Compressed Non-Asbestos (CNA) Gaskets: Made from synthetic fibers and fillers, they are used in a wide range of applications due to their versatility and cost-effectiveness.

    • Flexible Graphite Gaskets: These gaskets are composed of graphite sheets or foils, offering excellent resistance to high temperatures and chemical attacks.

    • Rubber Gaskets (Nitrile, EPDM, Neoprene): Rubber gaskets are resilient and provide good sealing properties, suitable for applications requiring resistance to oils, water, and moderate temperatures.

    • PTFE (Polytetrafluoroethylene) Gaskets: Known for their chemical resistance and non-stick properties, PTFE gaskets are used in applications involving aggressive chemicals and high temperatures.

  • Metallic Gaskets:

    • Spiral Wound Gaskets: These gaskets consist of alternating layers of metal and filler material (usually graphite), providing resilience and high sealing efficiency under fluctuating temperatures and pressures.

    • Ring Joint Gaskets: Typically used in high-pressure and high-temperature applications, ring joint gaskets are metallic and have an octagonal or oval cross-section, requiring specific groove designs in flanges.

    • Kammprofile Gaskets: These consist of a solid metal core with concentric serrations on each side, layered with a soft material (like graphite or PTFE). Kammprofile gaskets offer excellent sealing performance and are suitable for uneven or damaged flange surfaces.