Round Pipe
Your Professional Round Pipe Supplier
Our goal is to become your true partner in the field of round pipe in China. GNEE Group has more than 2,000 professional staff. With high quality steel pipes and professional services, GNEE Group has won the recognition and support of customers at home and abroad in the industries and has become a globally renowned steel pipe supply group. Our company is committed to applying advanced manufacturing technology and strict quality control standards to every product. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
Why Choose Us
Production market
GNEE Group exports steel to more than 160 countries including Thailand, Vietnam, South Korea, the United States, Chile, the United Kingdom, Saudi Arabia, the United Arab Emirates and Canada.
Our certification
The company has passed ISO9001, SGS, CE and other certifications.
Quality control
GNEE Group is committed to providing high-quality products to global customers. From the signing of the contract, from raw material procurement, production to inspection, the entire process is strictly in accordance with national standards such as ASTM, ASME, JIS, EN, DIN, etc.
Our service
The company has a professional sales team to provide you with high-quality pre-sales consulting services. During the order production process, customers can communicate with us at any time to understand the production progress. At the same time, we provide high-quality after-sales service to meet the different needs of customers.
Advantages of Round Pipe
Strength and durability
Round steel tubing offers exceptional strength, making it a preferred choice for projects requiring structural integrity. Its cylindrical design enhances its ability to withstand external forces without bending or breaking.
Efficient load distribution
The round shape of the pipe plays a crucial role in distributing loads evenly across its surface. Unlike square or rectangular tubing, round tubing eliminates stress concentrations at corners, reducing the risk of structural failure.
Corrosion resistance and longevity
Steel pipes often undergo treatments like galvanization or coating to improve their resistance to corrosion. These enhancements protect the material from rust and environmental damage, extending its lifespan.
Superior compression and torsion resistance
Round steel tubing excels in handling both compressive and torsional forces. Its cylindrical design allows it to distribute stress evenly across its surface, reducing the likelihood of deformation.
Elimination of weak axes
The absence of corners in round steel tubing eliminates weak axes, a common issue in other shapes like rectangular or square pipes.
Ease of fabrication and customization
Round steel tubing offers significant advantages in fabrication and customization. Its smooth, continuous surface simplifies cutting, bending, and welding processes, allowing manufacturers to create components tailored to specific project requirements.
|
STANDARD |
STEEL GRADE |
|
API SPEC 5L |
AAPI 5L Grade A,PI 5L Grade B,API 5L X42,API 5L X46, |
|
ASTM/ASME |
A53/A53M SA53/SA53M S/A53 Grade A,S/A53 Grade B |
|
GB/T 3091 |
Q195 Q215 Q235B Q345B Q345C Q345D Q345E Q355B Q355C Q355D Q355E |
|
EN 10219-1 |
S235JRH,S275JRH,S275J0H,S275J2H,S355JRH,S355J0H,S355J2H,S355K2H |
Round Pipe Chemical Composition
|
Standard |
Grade |
The chemical composition is not more than Max.(%) |
||||
|
C |
Mn |
P |
S |
Others |
||
|
EN 10255:2004 |
L、L1、L2、M、H |
0.20 |
1.40 |
0.035 |
0.030 |
— |
Application of Round Pipe
Construction and building frameworks
Round steel tubing plays a critical role in modern construction. Its ability to maintain structural integrity under heavy loads makes it a preferred material for building frameworks. Architects and engineers use this pipe in columns, beams, and trusses to create stable and durable structures.
Transportation and infrastructure
Transportation systems rely heavily on round steel tubing for their durability and versatility. This pipe is commonly used in the construction of bridges, railings, and guardrails. Its resistance to torsion and compression ensures stability in dynamic environments, such as highways and railways.
Industrial and manufacturing uses
Industrial facilities benefit from the strength and customization options of round steel tubing. Manufacturers use this pipe in machinery, conveyor systems, and storage racks due to its ability to withstand heavy loads and repetitive stress.
Material selection: The process begins with the selection of the appropriate stainless steel grade based on the intended application and desired properties. Common stainless steel grades used for round pipes include austenitic, ferritic, and duplex stainless steels.
Billet preparation: The selected stainless steel material is obtained in the form of billets or solid cylindrical bars. The billets are inspected for quality and defects before further processing.
Heating and hot rolling: The billets are heated to a high temperature and then passed through a series of rolling mills to reduce their diameter and form them into long, continuous strips known as “skelp.” this process is called hot rolling and helps shape the stainless steel into the desired pipe dimensions.
Forming and welding: The skelp is then formed into a cylindrical shape through either the seamless or welded pipe manufacturing process.
Seamless pipe manufacturing: For seamless pipes, the skelp is heated and pierced to create a hollow tube known as a “bloom.” the bloom is further elongated and rolled to reduce its diameter and wall thickness, resulting in a seamless pipe. No welding is involved in this process.
Customizable options of Round Steel Pipe
Material selection: The first step in customizing a seamless carbon steel pipe is selecting the appropriate material grade. Carbon steel pipes come in various grades, each with its unique properties and suitability for specific applications. The choice of material grade depends on factors such as the intended use, operating conditions, and the presence of corrosive elements.
Size and shape modifications: Customizing the size and shape of a seamless carbon steel pipe allows it to fit seamlessly into a particular project or system. The modification process can involve cutting, bending, or reshaping the pipe. Depending on the complexity of the modifications, specialized tools such as pipe cutters, tube benders, or hydraulic presses May be required. It is essential to maintain the structural integrity of the pipe during size and shape modifications to ensure its performance and longevity.
Surface treatments: Surface treatments play a crucial role in enhancing the performance and longevity of seamless carbon steel pipes. They can provide protection against corrosion, improve aesthetics, and ensure optimal functionality.
Additional features: Customization of seamless carbon steel pipes can also involve the incorporation of additional features or components to meet specific project requirements.
Packaging and Shipping of Round Pipe
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Packing |
In bundle |
|
Shipping |
Shipped by road, sea, rail or air |
FAQ