Seamless Pipe

Manufacturer of Seamless-Pipe

We are a manufacturer of seamless-pipe, specializing in fire protection, gas, water supply, drainage, building structure, agricultural facilities and other fields. Our main products include straight seam welded pipes, hot-dip galvanized steel pipes, pre-galvanized steel pipes, hollow profiles, seamless pipes, spiral submerged arc welded steel pipes, straight seam submerged arc welded steel pipes, steel plates and steel coils, pipe fittings, etc.

Why Choose Us

01/

Professional team

The core members of our company are part of the steel pipe subcommittee of the national steel standardization committee and hold dozens of industry patents. Our team has over 10 years of experience in the industry, allowing us to effectively address challenges in projects both at home and abroad.

02/

Our Products

We provide a variety of steel products, including ERW steel pipes, LSAW steel pipes, steel plates, steel coils, and pipe fittings. These products are designed to meet the needs of different industries and applications.

03/

Product applications

Our products are used in various fields, such as fire protection, gas supply, petroleum, water supply, drainage, building structures, and agricultural facilities.

04/

Our certificates

We are certified with iso 9001, iso 14001, iso 45001, and recognized as an aaa credit enterprise.

Seamless Carbon Steel Pipes

Compared to ERW welded steel pipe, seamless steel pipe has a stronger strength and better pressure capacity. As a result, the high-pressure equipment and thermal boiler sectors use it extensively.

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Fire Sprinkler Pipes

Typically composed of carbon steel, fire sprinkler pipe and accompanying fittings are used to transport water or other liquids and connect firefighting apparatus.

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Seamless Black Steel Pipe

Extruding the metal to the correct length produces seamless pipes. As a result, they have no joints in their cross-sections throughout their length. Without regular maintenance, seamless steel pipe

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API 5L Seamless Pipe

API 5L seamless pipe is comprised of corrosion-resistant, crack-resistant, and wear-resistant carbon steel. Carbon, manganese, chromium, nickel, and other elements are present in trace amounts in the

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A106 Steel Pipe

For many years, we have specialized in producing and supplying precision carbon steel pipes. It may design and process steel pipe to a specific length to meet the needs of customers. Good standing.

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12 Sch 40 Pipe

The tensile strength, 40 kg pressure, is indicated by the sch40 in the 12 sch 40 pipe pipe. It is denoted by a 4.0mm standard thickness. Sch 40 and sch 80 pipe are built of the same material as sch

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1.5 Inch Schedule 40 Pipe

Seamless pipes starts with a billet, which is a solid cylindrical hunk of steel. Billets are punctured through the core using a mandrel while still hot. The hollow billet is then rolled and stretched

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Seamless Pipe Schedule 40

We offer the highly durable schedule 40 seamless pipe that is created with precision in order to meet the need of our clients. Our complete product line is tensile-strengthening and long-lasting.

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Seamless Line Pipe

Seamless pipe is made from a steel cylinder that has been heated to a very high temperature and then pierced with a probe to make a hole in the cylinder. The cylinder is sized by rollers to achieve

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Advantages of Seamless Pipes

Strength and durability

The absence of welds or joints eliminates weak points in the pipe structure, ensuring enhanced resistance to repulsion, impact, and external forces.

Uniformity and homogeneity

The seamless manufacturing process of these pipes ensures a uniform and consistent structure throughout the length of the pipe.

Corrosion resistance

Seamless steel pipes can be manufactured with a variety of corrosion-resistant coatings or alloy compositions to withstand corrosive environments.

Seamless flow

Seamless steel pipes have no welds or joints, so fluids, gases, or solids can flow smoothly and unimpeded.

Precision and dimensional accuracy

The manufacturing process ensures excellent control over the outer diameter, wall thickness, and length of the pipe, allowing for easy installation, compatibility with various systems, and proper installation.

Versatility and wide range of applications

Seamless steel pipes are used in a wide range of industries and applications. They are commonly used in drilling, production, and fluid transfer in the oil and gas sector.

Standards and Grades of Seamless Steel Pipes

ASTM Standards for Seamless Steel Pipe
Standard Executive	Grade/Material	Product Name
ASTM A53	A,B	Black and Hot-Dipped Galvanized Steel Pipes Welded and Seamless
ASTM A106	A,B	Seamless Carbon Steel for High Temperature Service
ASTM A179	Low Carbon Steel	Seamless Cold-Drawn Low-Carbon Steel Heat Exchanger and Condenser Tubes
ASTM A192	Low Carbon Steel	Seamless Carbon Steel Boiler Tubes for High Pressure
ASTM A210	A1, C	Seamless Medium-Carbon and Alloy Steel Boiler and Superheater Tubes
ASTM A213	T5, T11, T12, T22 ,TP 347H	Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes
ASTM A312	TP304/304L, TP316/316L	Seamless Steel Pipe for Stainless Materials
ASTM A333	Gr.6	Seamless and Welded Steel Pipe for Low-Temperature Service
ASTM A335	P9, P11, P22	Seamless Ferritic Alloy Steel Pipe for High-Temperature Service
ASTM A519	4130,4140	Seamless Carbon and Alloy Steel for Mechanical Tubing
ASTM A789		Seamless Ferritic/Austenitic Stainless Steel Tubing for General Service

API Standards For Seamless Steel Pipes

Executive Standard	Grade / Material	Product Name
API Spec 5CT	J55, K55, N80, L80,C90, C95, T95, P110, M65	Spectification for Casing and Tubing
API Spec 5L PSL1	A,B X42, X46, X52, X56, X60, X65,. X70	Specification for Line Pipe
API Spec 5L PSL2	A,B X42, X46, X52, X56, X60, X65 X70	Specification for Line Pipe

DIN / EN Standards For Seamless Steel Pipes

Executive Standard	Grade / Material	Product Name
DN 17175/EN10216-2	ST35, ST45, ST52, 13CrMo44	Seamless Steel Tube for Elevated Temperature
DIN 2391/EN10305-1	St35, St45, St52	Cold Drawn Seamless Precision Pipe
DIN 1629/EN10216-1	St37, St45, St52	Seamless Circular unalloyed Steel Pipes Subject to Special Requirements

Application of Seamless Pipe

Heat exchangers
The main application areas of stainless steel seamless pipes include heat exchanger tubes, heat exchangers used in equipment and piping systems.

Fertilizer industry
The main application areas in the fertilizer industry mainly include: Melamine plants, high-pressure seamless pipes and piping systems, plants, urea synthesis plants-ethylene heat exchangers.

Power generation and environmental technology
Seamless pipes are mainly used in heat exchangers in power plants and energy fields. Environmental complex systems and waste incineration plants also have the same application areas, namely reheaters and superheaters.

Shipbuilding for international customers
Seamless pipes are used in shipbuilding in the fields of discovery and innovation, manufacturing and processing. Stainless steel 304 pipes are widely used in shipbuilding.

Oil and gas applications
Stainless steel seamless pipes have a wide range of applications in the oil and gas sector. It is used for oil casing and oil pipes both offshore and onshore, and also in the fields of production, exploration and processing.

Mechanical and plant engineering and construction
Seamless pipes are used in the fields of mechanical and plant engineering and construction: Food manufacturing, automotive technology, measurement and control technology, pumps, hydraulic cylinders, etc.

Automotive industry
In the automotive sector, seamless pipes are mainly used for hydraulic brake systems, etc. Seamless stainless steel pipes are used in brake systems and various machine components, which require an effective material that can resist corrosion under external conditions.

Project services
Seamless steel pipes or seamless tubes are common and can be used in residential walls, laboratories, and commercial or industrial buildings underground.

High temperature and high pressure services
For operations at higher temperatures and pressures, seamless pipes or seamless tubes are the first choice. They are used in applications such as containers, heating pipes and high-temperature reheaters.

Our Surface Coloring Treatments:

The coloring of stainless steel pipes not only gives stainless steel products a variety of colors, increases the variety of products, but also improves the wear resistance and corrosion resistance of the products.

The stainless steel coloring method is as follows:

Chemical oxidation coloring method

Electrochemical oxidation coloring method

Ion deposition oxide coloring method

High temperature oxidation coloring method

Vapor phase pyrolysis coloring method

Our Certificate

ISO9001, ISO 14001, ISO 45001, AAA credit enterprise.

FAQ

Q: How do seamless pipe manufacturers ensure the quality of their products?

A: Quality assurance involves rigorous testing at various stages of production, including non-destructive testing methods such as ultrasonic testing (UT), magnetic particle inspection (MPI), and hydraulic testing.

Q: Can seamless pipes be customized to specific dimensions?

A: Yes, manufacturers often offer custom sizing and specifications to meet the unique needs of projects, ensuring that the pipes fit precisely within the intended systems.

Q: What is the difference between a seamless pipe and a seamless tube?

A: While both are produced similarly, pipes are generally larger in diameter and used for fluid transportation, while tubes are smaller and often used for structural applications or in complex machinery.

Q: What surface finishes are available for seamless pipes?

A: Surface finishes may include mill finish, polished, pickled & oiled, or coated finishes depending on the end-use requirements.

Q: How can I choose the right seamless pipe manufacturer?

A: Consider factors such as the manufacturer's reputation, experience, product range, quality certifications, and ability to provide after-sales service and support.

Q: Can any manufacturer produce all types of seamless pipes?

A: No, some specialize in certain materials or sizes. Ensure they can meet your specific needs.

Q: What are the key factors to consider when choosing a seamless pipe manufacturer?

A: Quality Assurance: Look for ISO certifications and strict quality control processes.
Material Range: Ensure they offer a variety of materials like carbon steel, stainless steel, and alloy steel.
Customizability: Check if they can customize pipes according to your specifications.
Capacity: Consider their production capacity to meet your demand.
Reputation: Research their market reputation and customer reviews.

As one of the most professional seamless pipe manufacturers and suppliers in China, we're featured by first-class material and service. Please rest assured to buy high quality seamless pipe at competitive price from our factory.

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