CARBON SEAMLESS STEEL PIPES FROM CNBM WITH BEST QUALITY

CARBON SEAMLESS STEEL PIPES FROM CNBM WITH BEST QUALITY System 1

CARBON SEAMLESS STEEL PIPES FROM CNBM WITH BEST QUALITY System 2

CARBON SEAMLESS STEEL PIPES FROM CNBM WITH BEST QUALITY

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 50 m.t.

Supply Capability:: 500 m.t./month

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3、The Steel Pipe Q345 Specification:

Standard	JIS, DIN, ASTM JIS G3445-2006, JIS G3444-2006, JIS G3446-2004, DIN EN 10216-1-2004, DIN EN 10217-1-2005, DIN EN 10305, ASTM A106-2006, ASTM A53-2007, ASTM A789-2001, ASTM A1020-2002, ASTM A179-1990, ASTM A199
Grade	Cr-Mo alloy, Mo, ST35-ST52, Q195-Q345, CrNi alloy 15CrMo, 10CrMo910, 30CrMo, 15Mo3, 16Mo, St37, St52, St42, St45, Q235, Q345, Q195, Q215, Cr17Ni8, 1Cr13Mn9Ni1N
Thickness	2 - 50 mm
Section Shape	Round
Outer Diameter	10 - 900 mm
Secondary Or Not	Non-secondary
Application	Structure Pipe
Technique	EFW
Certification	API
‍‍Surface Treatment	Paint
Special Pipe	API Pipe
Alloy Or Not	Non-alloy

Specifications

1.W.T from 2mm to 70mm
2.OD from 10 to 1200mm
3.product by our own factory
4.on time dilivery

4,Steel Pipe Q345 Images：

CARBON SEAMLESS STEEL PIPES FROM CNBM WITH BEST QUALITY

5、FAQ of Square Tube:

①How is the quality of your products?

Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?

Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?

Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Any question, pls feel free to contact us !

Q: Can steel pipes be used for geothermal heating systems?: Yes, steel pipes can be used for geothermal heating systems. Steel is a commonly used material in geothermal installations due to its durability, corrosion resistance, and ability to withstand high temperatures. It provides a reliable and long-lasting solution for transferring heat in geothermal heating systems.

Q: What are the different coatings used on steel pipes?: There are several different coatings used on steel pipes, including epoxy coatings, polyethylene coatings, zinc coatings, and fusion bonded epoxy coatings. These coatings are applied to protect the steel pipes from corrosion and extend their lifespan.

Q: How are steel pipes protected against external corrosion in coastal areas?: Steel pipes are protected against external corrosion in coastal areas through a combination of coating and cathodic protection measures. One of the most common methods used is the application of a protective coating on the surface of the steel pipe. This coating acts as a barrier between the steel surface and the corrosive elements present in the coastal environment, such as saltwater and humidity. The coating is typically made of materials like epoxy or polyethylene, which are resistant to corrosion and provide a long-lasting protective layer. In addition to coating, cathodic protection is also employed to further safeguard the steel pipes from corrosion. Cathodic protection involves the use of sacrificial anodes or impressed current to prevent the corrosion of the steel. Sacrificial anodes are made of more reactive metals, such as zinc or aluminum, which are attached to the steel pipe. These anodes corrode instead of the steel, sacrificing themselves to protect the steel surface. Impressed current systems, on the other hand, use an external power source to provide a protective current to the steel, preventing corrosion. Regular inspection and maintenance of the protective coating and cathodic protection system are crucial to ensure their effectiveness. Coatings may deteriorate over time due to wear and tear, requiring periodic inspection and reapplication if necessary. Similarly, sacrificial anodes need to be replaced when they are depleted, and impressed current systems require monitoring and adjustment to maintain the desired level of protection. Overall, by combining effective coating techniques with cathodic protection measures, steel pipes in coastal areas can be adequately protected against external corrosion, ensuring their longevity and optimal performance.

Q: How are steel pipes measured and labeled?: Steel pipes are typically measured and labeled based on their nominal pipe size (NPS), which refers to the inner diameter of the pipe. This measurement is expressed in inches or millimeters. Additionally, steel pipes are often labeled with their schedule or wall thickness, which is represented by a numerical value. The labeling also includes the pipe material, such as carbon steel or stainless steel, and may include other specifications and markings as required by industry standards and regulations.

Q: How are steel pipes used in the aerospace industry?: Steel pipes are commonly used in the aerospace industry for various applications such as fuel lines, hydraulic systems, and structural components. These pipes provide strength, durability, and resistance to high pressure and extreme temperatures, making them ideal for delivering fluids and gases, supporting critical systems, and ensuring the structural integrity of aircraft and spacecraft.

Q: Are steel pipes suitable for structural applications?: Yes, steel pipes are suitable for structural applications. Steel pipes are known for their strength, durability, and versatility, making them ideal for various structural applications. They can be used in buildings, bridges, stadiums, and other structures to provide support and stability. Steel pipes have high tensile strength, which allows them to withstand heavy loads and resist deformation under pressure. Additionally, their resistance to corrosion makes them a reliable choice for structural applications, even in harsh environments. The use of steel pipes in structural applications is further enhanced by their cost-effectiveness and easy installation. Overall, steel pipes are a popular choice in the construction industry due to their strength, durability, versatility, and cost-effectiveness.

Q: Difference and application of seamless hot rolled pipe and cold drawn pipe in seamless steel tube: The general production of hot-rolled seamless steel pipe in the automatic tube rolling mill. Solid billet after inspection and clearance of surface defects, cut into required length, in the tube hole end surface of centering, then sent to a heating furnace, in punch in punch. While continuing to rotate and advance, in the roll and immediate action, tube gradually form a cavity, called capillary. Sent to the automatic tube rolling mill on rolling. Finally after all the entire thickness, sizing machine sizing, achieve specifications. Using continuous pipe mill production of hot-rolled seamless steel tube is advanced.1.2, in order to obtain smaller size and better quality of seamless tube, cold rolling, cold drawing must be used or combined method of cold rolling. Usually in two roller mill, rolling ring groove tapered plug pipe in variable cross section circular slot and the composition. Drawing is usually in single or double 0.100T chain drawbench.1.3, the extrusion method will soon heat the tube blank in the closed extrusion cylinder, the perforation bar and extrusion rod movement, so that extrusion parts from the smaller die hole extrusion. This method can produce smaller diameter steel pipe

Q: Can steel pipes be used for heat exchangers?: Yes, steel pipes can be used for heat exchangers. Steel pipes are often preferred for heat exchangers due to their high thermal conductivity, durability, and resistance to corrosion. They are commonly used in various industries including power generation, chemical processing, and HVAC systems.

Q: What are the different international standards for steel pipes?: There are several different international standards for steel pipes, including the American Society for Testing and Materials (ASTM), the International Organization for Standardization (ISO), and the European Committee for Standardization (CEN). These standards define specific requirements for the manufacturing, testing, and dimensions of steel pipes to ensure their quality and compatibility for various applications.

Q: What is the lifespan of galvanized steel pipes?: The lifespan of galvanized steel pipes can vary depending on several factors such as the quality of the galvanizing process, the environment in which they are installed, and how well they are maintained. However, on average, galvanized steel pipes can last between 40 to 70 years before they may start to show signs of corrosion or degradation.

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