Superior Steel Overseas

ERW Steel Tube (ASTM A178 Grade A, Grade C, Grade D) refers to electric resistance welded tubes made from carbon steel and conforming to the ASTM A178 specification. These tubes are specifically designed for use in boiler and heat exchanger applications, where high temperature and pressure resistance are required. The ASTM A178 specification outlines the requirements for the manufacturing, testing, and dimensional characteristics of these tubes.

Here is a product description for ERW Steel Tube (ASTM A178 Grade A, Grade C, Grade D):

1. Material Composition: The tubes are made from carbon steel, which typically contains iron as the primary element along with small amounts of carbon, manganese, phosphorus, sulfur, and other elements. The specific chemical composition may vary depending on the manufacturing process and the grade of carbon steel used.

2. Manufacturing Process: ERW steel tubes are produced through the electric resistance welding (ERW) process, which involves passing a high-frequency electric current through the edges of the steel strip or plate to form a welded joint. The tubes are typically produced in straight lengths and may have a round, square, or rectangular shape.

3. Grades: The ASTM A178 specification includes three grades of carbon steel tubes: Grade A, Grade C, and Grade D. Each grade has different mechanical properties and is suitable for different boiler and heat exchanger applications.

   • Grade A: This grade of tube has the lowest carbon content and is suitable for general-purpose applications where lower mechanical properties are acceptable.

   • Grade C: Tubes of Grade C have higher carbon content and exhibit improved tensile strength and yield strength compared to Grade A. They are suitable for applications requiring higher mechanical properties and better resistance to stress corrosion cracking.

   • Grade D: This grade has the highest carbon content and offers the highest tensile strength among the three grades. Grade D tubes are suitable for applications requiring even higher mechanical properties and enhanced resistance to stress corrosion cracking.

4. Size Range: ERW steel tubes in accordance with ASTM A178 are available in various sizes and dimensions. The outer diameter (OD), wall thickness, and length can be customized based on specific application requirements.

5. Application: ERW steel tubes conforming to ASTM A178 Grade A, Grade C, and Grade D are primarily used in boiler and heat exchanger applications. They are specifically designed to withstand high temperatures and pressures encountered in steam-generating systems. These tubes provide efficient heat transfer, excellent corrosion resistance, and long-lasting performance in various industrial settings.

6. Standards and Compliance: ERW steel tubes in compliance with ASTM A178 meet the specific requirements outlined in the ASTM A178 specification, including mechanical properties, dimensional tolerances, and testing procedures. It is important to consult the specific product documentation, including the manufacturer's datasheets, for detailed information on mechanical properties, dimensional tolerances, and any additional features or coatings available.

When selecting the appropriate ASTM A178 grade for a specific boiler or heat exchanger application, factors such as the operating temperature, pressure, and service conditions should be considered to ensure optimal performance and safety.

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Seamless carbon steel pipe is a type of pipe made from carbon steel that does not have any welded seams. It is manufactured using a seamless process, which involves extruding a solid billet of carbon steel through a mandrel to form the pipe shape. Seamless carbon steel pipes are widely used in various industries due to their strength, durability, and ability to withstand high-pressure and high-temperature conditions. Here is a description of seamless carbon steel pipes:

1. Material Composition: Seamless carbon steel pipes are made primarily from carbon steel, which contains iron and carbon as the main elements. The carbon content in the steel determines its strength and other mechanical properties. Additionally, small amounts of other elements may be present to enhance specific characteristics.

2. Manufacturing Process: Seamless carbon steel pipes are produced using a seamless manufacturing process. A solid billet of carbon steel is heated and pierced to form a hollow tube. The tube is then elongated and shaped through a series of processes, including extrusion, rolling, and sizing, to achieve the final pipe dimensions.

3. Size and Dimension Range: Seamless carbon steel pipes are available in various sizes and dimensions, ranging from small diameter pipes to large diameter pipes. The sizes are specified in nominal pipe size (NPS) and schedule numbers, which indicate the wall thickness of the pipes.

4. Strength and Durability: Seamless carbon steel pipes are known for their excellent strength and durability. They are capable of withstanding high-pressure and high-temperature conditions without deformation or failure.

5. Corrosion Resistance: While carbon steel is susceptible to corrosion, seamless carbon steel pipes can be coated or lined with protective materials to enhance their corrosion resistance. Common coatings include epoxy, polyethylene, or zinc coatings, while linings may include stainless steel or other corrosion-resistant materials.

6. Applications: Seamless carbon steel pipes are used in a wide range of applications across various industries. They are commonly used for conveying fluids such as oil, gas, water, and steam in industries such as oil and gas, petrochemical, power generation, construction, and more. They are also utilized in infrastructure projects, mechanical and structural applications, and for machinery and equipment.

When selecting seamless carbon steel pipes, it is important to consider factors such as the specific grade of carbon steel, size, wall thickness, pressure and temperature ratings, and any additional requirements for corrosion resistance or specific industry standards. This ensures that the pipes meet the necessary requirements for the intended application.

Superior Steel Overseas is the leading supplier and exporter of Carbon Steel Alloy which are made from high quality raw materials.

Round Carbon Steel Welded Pipe (ASTM A252 Grade 1, 2 & 3) refers to welded pipes made from carbon steel and conforming to the ASTM A252 specification. These pipes are specifically designed for use in structural applications such as deep foundations, piling, and underground construction. The ASTM A252 specification outlines the requirements for the manufacturing, testing, and dimensional characteristics of these pipes.

Here is a product description for Round Carbon Steel Welded Pipe (ASTM A252 Grade 1, 2 & 3):

1. Material Composition: The pipes are made from carbon steel, which typically contains iron as the primary element along with small amounts of carbon, manganese, phosphorus, sulfur, and other elements. The specific chemical composition may vary depending on the manufacturing process and the grade of carbon steel used.

2. Manufacturing Process: Round carbon steel welded pipes are produced through the electric resistance welding (ERW) process or the submerged arc welding (SAW) process. ERW pipes are formed by rolling a steel strip into a cylindrical shape and then welding the edges together. SAW pipes are manufactured by welding the steel plates longitudinally using a submerged arc welding technique.

3. Grades: The ASTM A252 specification includes three grades of carbon steel pipes: Grade 1, Grade 2, and Grade 3. Each grade has different mechanical properties and is suitable for different applications.

   • Grade 1: This grade of pipe has the lowest tensile strength among the three grades and is primarily used for general structural purposes.

   • Grade 2: Pipes of Grade 2 have intermediate tensile strength and are suitable for applications requiring higher strength than Grade 1, such as deep foundations and piling.

   • Grade 3: This grade has the highest tensile strength and is suitable for heavy-duty structural applications, including deep foundations, piling, and other demanding projects.

4. Size Range: Round carbon steel welded pipes in accordance with ASTM A252 are available in various sizes and dimensions. The outer diameter (OD), wall thickness, and length can be customized based on project requirements.

5. Application: ASTM A252 Grade 1, 2 & 3 pipes are commonly used in the construction industry for applications that require structural support. They are widely used in deep foundations, piling, and underground infrastructure projects, such as bridges, buildings, and retaining walls. These pipes offer excellent strength, durability, and load-bearing capabilities.

6. Standards and Compliance: Round carbon steel welded pipes in compliance with ASTM A252 meet the specific requirements outlined in the ASTM A252 specification, including mechanical properties, dimensional tolerances, and testing procedures. It is important to consult the specific product documentation, including the manufacturer's datasheets, for detailed information on mechanical properties, dimensional tolerances, and any additional features or coatings available.

When selecting the appropriate ASTM A252 grade for a specific application, factors such as the load requirements, soil conditions, and design specifications should be considered.

• Low Temperature Carbon Steel Seamless Pipe
  Size Ranges : 1/2" - 48"
• Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
  Grades :- A333 Grade 1, A333 Grade 3, A333 Grade 4, A333 Grade 6, A333 Grade 7, A333 Grade 8, A333 Grade 9, A333 Grade 10, A333 Grade 11

eamless steel pipes of A333 Grade 1, 3, 4, 6, 7, 8, 9, and 10 refer to pipes that comply with the ASTM A333 specification. This specification covers low-temperature seamless carbon steel pipes designed for use in low-temperature applications. Each grade within the A333 specification has specific requirements and characteristics. Here is a general description of seamless steel pipes for A333 Grade 1, 3, 4, 6, 7, 8, 9, and 10:

1. Material Composition: A333 Grade 1, 3, 4, 6, 7, 8, 9, and 10 seamless steel pipes are made from carbon steel. The exact chemical composition and mechanical properties of the steel vary depending on the specific grade.

2. Low-Temperature Service: A333 seamless steel pipes are designed for use in low-temperature environments. They are suitable for applications where the temperature may reach as low as -150°F (-101°C).

3. Manufacturing Process: A333 seamless steel pipes are manufactured using a seamless process. The pipes are formed by piercing a solid billet of steel and then extruding it to the desired shape and size without any welding or joining.

4. Size and Dimension Range: A333 seamless steel pipes are available in various sizes and dimensions, typically ranging from 1/2" to 24" in nominal pipe size (NPS). They are available in various schedules (wall thicknesses) to accommodate different pressure and temperature requirements.

5. Impact Toughness: A333 Grade 1, 3, 4, 6, 7, 8, 9, and 10 seamless steel pipes have specific requirements for impact toughness. This ensures that the pipes can withstand low-temperature conditions without brittle fracture.

6. Standards and Compliance: A333 seamless steel pipes comply with the ASTM A333/A333M specification, which sets the requirements for seamless and welded carbon and alloy steel pipes for low-temperature service. Compliance with this standard ensures the quality, reliability, and performance of the pipes for their intended application.

A333 seamless steel pipes are commonly used in various industries such as oil and gas, petrochemical, power generation, and more. They are suitable for applications where low-temperature service is required and provide excellent toughness and resistance to brittle fracture. When selecting A333 seamless steel pipes, it is important to consider factors such as the specific grade, temperature requirements, pressure ratings, and compliance with industry standards to ensure the pipes meet the necessary requirements for the intended application.

Alloy Steel Tube (A334 Grade 1, 3, 4, 6, 7, 8, 9, 10) refers to a range of seamless and welded tubes made from alloy steel and conforming to the ASTM A334 specification. These tubes are commonly used in low-temperature applications where high toughness and impact resistance are required. Each grade within the A334 specification has specific properties and is suitable for different temperature ranges and service conditions.

Here is a product description for Alloy Steel Tube (A334 Grade 1, 3, 4, 6, 7, 8, 9, 10):

1. Material Composition: The alloy steel tubes in the A334 specification are typically made from carbon steel with the addition of specific alloying elements to enhance their low-temperature properties. The exact chemical composition will vary depending on the specific grade, but common elements include carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, and molybdenum.

2. Manufacturing Process: A334 alloy steel tubes can be produced using various manufacturing methods, including seamless and welded processes. Seamless tubes are formed by piercing a solid billet of steel and then rolling it into a tube shape, while welded tubes are made by joining the edges of a flat steel strip or plate using welding techniques.

3. Grades and Temperature Range: The A334 specification includes multiple grades, each designed for specific low-temperature applications. The grades are as follows:

   • Grade 1: Suitable for temperatures as low as -50°C (-58°F).
   • Grade 3: Suitable for temperatures as low as -150°C (-238°F).
   • Grade 4: Suitable for temperatures as low as -150°C (-238°F).
   • Grade 6: Suitable for temperatures as low as -50°C (-58°F).
   • Grade 7: Suitable for temperatures as low as -100°C (-148°F).
   • Grade 8: Suitable for temperatures as low as -320°C (-608°F).
   • Grade 9: Suitable for temperatures as low as -100°C (-148°F).
   • Grade 10: Suitable for temperatures as low as -100°C (-148°F).

4. Size Range: Alloy Steel Tubes in the A334 specification are available in various sizes and dimensions. The outer diameter (OD), wall thickness, and length can be customized based on specific application requirements.

5. Application: A334 alloy steel tubes are widely used in industries such as oil and gas, petrochemical, power generation, and chemical processing, where low-temperature service is essential. These tubes are typically employed in equipment and systems that operate in cold environments or handle cryogenic substances. They provide excellent toughness and resistance to brittle fracture at low temperatures.

6. Standards and Compliance: Alloy Steel Tubes in the A334 specification conform to the requirements of ASTM A334, which defines the mechanical properties, chemical composition, and other characteristics of low-temperature alloy steel tubes. It is important to consult the specific product documentation, including the manufacturer's datasheets, for detailed information on mechanical properties, dimensional tolerances, and any additional features or coatings available.

When selecting an A334 grade for a particular low-temperature application, it is crucial to consider the required operating temperature, service conditions, and any additional specifications or standards that may apply.

ASTM A369 is a standard specification that covers carbon and ferritic alloy steel forged and bored pipe for high-temperature service. These pipes are commonly used in industries such as power generation, petrochemical, and refinery applications where high-temperature and high-pressure conditions are encountered. Here is a description of carbon and ferritic alloy steel forged ASTM A369 pipes:

1. Material Composition: ASTM A369 pipes are made from carbon and ferritic alloy steels. The specific grade of steel used depends on the desired mechanical properties and temperature resistance required for the application. Common grades include Grade FP11, FP12, FP22, FP5, FP9, and FP91.

2. Manufacturing Process: ASTM A369 pipes are typically produced using a forging process. This involves shaping the steel by applying heat and pressure to form the desired pipe shape. The forged pipes are then bored to achieve the specified dimensions and smooth internal surface.

3. High-Temperature Service: ASTM A369 pipes are specifically designed for high-temperature service. They are capable of withstanding elevated temperatures and maintaining their strength and structural integrity under thermal stress.

4. Size and Dimension Range: ASTM A369 pipes are available in various sizes and dimensions, conforming to standard pipe sizes. The pipe sizes are specified in nominal pipe size (NPS) and schedule numbers, which indicate the wall thickness.

5. Pressure Ratings: ASTM A369 pipes are designed to withstand high-pressure conditions. The pressure ratings of the pipes are specified based on the material grade, size, and temperature requirements.

6. Standards and Compliance: ASTM A369 pipes comply with the ASTM A369/A369M specification, which outlines the requirements for carbon and ferritic alloy steel forged and bored pipes for high-temperature service. Compliance with this standard ensures the quality, reliability, and performance of the pipes for their intended application.

When selecting ASTM A369 pipes, it is essential to consider factors such as the specific grade, size, pressure and temperature ratings, and compliance with relevant industry standards. This ensures that the pipes meet the necessary requirements for the intended high-temperature and high-pressure application.

Size Ranges : 16” to 140”

Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier

Grades :

ASTM A381 Grade Y35
ASTM A381 Grade Y42
ASTM A381 Grade Y48
ASTM A381 GradeY50
ASTM A381 Grade Y52
ASTM A381 Grade Y52
ASTM A381 Grade Y56
ASTM A381 Grade Y60
ASTM A381 Grade Y65

ASTM A587 is a standard specification that covers electric-resistance-welded (ERW) low carbon steel pipe for use as process lines in chemical industries. This specification specifically pertains to pipe sizes NPS 2 and smaller with nominal wall thicknesses up to 0.500 inches (12.7 mm) inclusive.

The ASTM A587 standard requires the pipes to be made from low carbon steel and produced by the electric resistance welding process. The material should have a maximum carbon content of 0.30% and exhibit good weldability and formability.

The pipes produced under ASTM A587 are typically used for conveying various fluids and gases in chemical process plants. They are not suitable for high-pressure or high-temperature applications, as the focus of this specification is on corrosion resistance rather than mechanical strength.

It's important to note that ASTM A587 specifically refers to low carbon steel pipes, not stainless steel. If you require stainless steel pipes, you may want to consider specifications such as ASTM A312 for seamless or welded stainless steel pipes.

When sourcing welded low carbon steel pipes according to ASTM A587, it's recommended to work with reputable manufacturers or suppliers who can provide pipes that meet the necessary specifications and quality standards for your specific application.

Standard Specification for Steel Tubes, Low Carbon or High Strength Low Alloy, Tapered for Structural Use

Size Ranges : 2 3/8” to 30”

Schedules : 10,20, 30, 40,60, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier

Grades : ASTM A595 Grade A, ASTM A595 Grade B, ASTM A595 Grade C, Grade A HSLA SS, Grade A HSLAS Cl2, Grade

HSLAS Cl2, Grade B HSLA SS, Grade B HSLAS Cl1, Grade B HSLAS Cl2, Grade C A606, Grade C 1588, Grade C A588/B, Grade

C A588/K

Red ASTM A556 carbon steel pipes do not refer to a specific type of carbon steel pipe. The color red typically indicates a protective coating or paint applied to the surface of the pipe for identification or corrosion resistance purposes. ASTM A556 is a standard specification for seamless cold-drawn carbon steel feedwater heater tubes. These tubes are primarily used in power generation plants for heat exchange applications.

Here are some key features of ASTM A556 carbon steel pipes:

1. Material Composition: ASTM A556 carbon steel pipes are made from carbon steel, which contains primarily iron and carbon, along with small amounts of other elements. The exact composition will depend on the specific grade of carbon steel used.

2. Manufacturing Process: ASTM A556 carbon steel pipes are produced using a seamless manufacturing process. The pipes are cold-drawn, meaning they are formed by pulling a solid billet of carbon steel through a die, resulting in a seamless and uniform pipe.

3. Size and Dimension Range: ASTM A556 carbon steel pipes are available in various sizes and dimensions, typically ranging from 1/2" to 5" in outer diameter (OD) and various wall thicknesses. The pipe sizes are specified in nominal pipe size (NPS).

4. Application: ASTM A556 carbon steel pipes are primarily used in power generation plants for heat exchange applications, specifically in feedwater heaters. These pipes are designed to withstand high-temperature and high-pressure conditions and provide efficient heat transfer.

5. Standards and Compliance: ASTM A556 carbon steel pipes comply with the ASTM A556/A556M specification, which sets the requirements for seamless cold-drawn carbon steel feedwater heater tubes. Compliance with this standard ensures the quality, reliability, and performance of the pipes for their intended application.

It's worth noting that the color red is not an inherent characteristic of ASTM A556 carbon steel pipes but is likely a visual indicator added to the surface of the pipes for identification or specific application requirements. When selecting carbon steel pipes, it is important to consider factors such as the specific application, pressure and temperature ratings, and compliance with relevant industry standards to ensure the pipes meet the necessary requirements.

ASTM A134 is a standard specification issued by ASTM International that covers electric fusion (arc)-welded straight seam or spiral seam steel pipes with a diameter ranging from 16 inches (406.4 mm) to 144 inches (3657.6 mm). These pipes are commonly used for low-pressure transmission of water, oil, gas, and other fluids.

Here are some key features and requirements of ASTM A134 carbon steel pipes:

1. Material: ASTM A134 pipes are made from carbon steel, which provides strength and durability. The carbon steel used in the pipes is typically of weldable quality and suitable for fusion welding.

2. Manufacturing Process: ASTM A134 pipes are produced by electric fusion (arc) welding. This process involves forming a steel plate or coil into a cylindrical shape and welding the seam using electric current. The pipes can be produced with either a straight seam or a spiral seam.

3. Dimensions: ASTM A134 specifies the permissible variations in dimensions for the steel pipes. This includes requirements for outer diameter, wall thickness, and length. The standard also provides tolerance limits for these dimensions to ensure compliance with the specified requirements.

4. Mechanical Properties: ASTM A134 does not specify specific mechanical properties for the carbon steel pipes. However, the mechanical properties of the pipes can be determined based on the applicable material grade and manufacturing standards, such as ASTM A53 for Grade A and Grade B carbon steel pipes.

5. Testing and Certification: ASTM A134 requires certain tests to be performed on the carbon steel pipes, including hydrostatic or non-destructive electric testing. The pipes must also be certified by the manufacturer to demonstrate compliance with the standard.

It's important to note that ASTM A134 is specific to electric fusion (arc)-welded carbon steel pipes for low-pressure applications. If you have specific requirements for higher-pressure applications or different specifications, it is advisable to consult relevant ASTM standards or consult with manufacturers or suppliers who can provide further guidance based on your specific needs.

1. Material Composition: ASTM A500 carbon steel pipes are made from various grades of carbon steel, including Grade A, Grade B, Grade C, or Grade D. These grades have different chemical compositions and mechanical properties, but they all meet the minimum requirements for carbon content and tensile strength specified by the ASTM A500 standard.

2. Manufacturing Process: ASTM A500 carbon steel pipes are manufactured through either a seamless or welded process. Seamless pipes are produced by piercing a solid billet of steel and then extruding it to the desired shape and size. Welded pipes are created by joining the edges of steel plates or coils through welding, forming a continuous seam.

3. Structural Tubing: ASTM A500 carbon steel pipes are primarily used as structural tubing for various applications. They are commonly used in construction projects for supporting columns, beams, and other load-bearing structures. The pipes provide structural integrity and stability while also offering a cost-effective solution.

4. Size and Dimension Range: ASTM A500 carbon steel pipes come in a variety of sizes and dimensions, including round, square, rectangular, and special shapes. The pipes are available in different nominal sizes and wall thicknesses, which can be customized based on specific project requirements.

5. Corrosion Resistance: ASTM A500 carbon steel pipes offer good corrosion resistance, particularly when coated or protected. However, if the pipes are exposed to aggressive environments or highly corrosive substances, additional corrosion protection measures may be necessary.

6. Mechanical Properties: ASTM A500 carbon steel pipes have specific mechanical properties that meet the requirements of the standard. These properties include minimum yield strength, minimum tensile strength, and elongation. The specific mechanical properties depend on the grade of carbon steel used.

7. Standards and Compliance: ASTM A500 carbon steel pipes comply with the ASTM A500/A500M specification, which sets the requirements for cold-formed welded and seamless carbon steel structural tubing. Compliance with this standard ensures the quality, reliability, and consistency of the pipes for their intended structural applications.

When selecting ASTM A500 carbon steel pipes for a specific project, it is important to consider factors such as the structural requirements, load-bearing capacity, environmental conditions, and any additional coatings or treatments required. This ensures that the pipes meet the necessary performance and safety requirements for the intended application.

• Smooth finish
• Crack resistance
• Durability

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Additional Information:

• Minimum Order Quantity: 100 Kg

Electric Fusion Welded (EFW) steel pipe refers to a type of pipe that is manufactured through the electric fusion welding process. In this method, a combination of heat and pressure is used to join the edges of two steel plates or to form a continuous seam in a coiled steel strip.

The EFW process involves the following steps:

1. Steel plates or coils are prepared, ensuring that they meet the required specifications for thickness, size, and composition.

2. The edges of the steel plates or the ends of the coil are prepared for welding. This typically involves bevelling or machining the edges to create a suitable joint configuration.

3. The prepared edges are brought together, and an electric arc is established between them. The heat generated by the arc melts the edges, and a filler material may be added if required.

4. Pressure is applied to the joint area to forge the molten metal together, forming a solid weld. This pressure can be applied through rollers or hydraulic mechanisms, depending on the specific equipment used.

5. The welded joint is then cooled and inspected for quality, including checking for defects such as cracks or incomplete fusion.

Electric Fusion Welded pipes are commonly used in various industries for conveying fluids and gases. They can be produced in a wide range of sizes, from small diameters to large-diameter pipes used in infrastructure projects.

It's worth noting that there are specific ASTM specifications for electric fusion welded steel pipes, such as ASTM A134, ASTM A139, and ASTM A671. These specifications cover different grades and applications of EFW pipes, including low carbon steel, high-strength low-alloy steel, and alloy steel pipes for high-temperature service.