Carbon black seamless steel tube DIN17175 ST35

Carbon black seamless steel tube DIN17175 ST35

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 10000 m.t./month

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Carbon Seamless steel pipe balck ASTMA106 GRADE B

Seamless steel pipe balck ASTM A106/A53 GRADE B

1. Commodity Name: Seamless steel pipe

2. Standard: API,GB,ASTM,ASME,DIN

3. Quality grade: 10#, 20#, A106B, A53B, API 5L B, Q235, Q345, ST37-2, ST 45, ST52.etc.

4. Dimension:

OD: 1/2"-24"

WT: 2.5-80mm, SCH10~SCH40~XXL

length: 5.8m,6m,8m,9m,12m

5. Technique: Hot Rolled/Cold Rolled/ Cold Drawn

6. application

carbon seamless steel pipes are widely used in gas, water and oil, transpotation;constructions;Bridge,highway,windows of model steel door; building materials;fences;heating facilities Fluid Pipe;conduit pipe,scaffolding pipe.etc.

7. Payment Terms: L/C D/A D/P T/T

8.packing and shipment

Packaged in bundles,as per customers' requirements, it can also bepackagesd as beveled ends, typed marking, black painting, plastic caps protection,woven bags packing

For 20" container the max length is 5.8m; For 40" container the max length is 12m. other options are available based on customer requests. Please discuss when placing orders.

9. Surface: painted with varnish;

10. Plastic caps at ends.

11. Tolerance: OD +1%/-1%

WT +12.5%/-10%

12. Chemical composition:

Models of Steel Pipes	Chemical Component
Steel 20 (ASTM A106B)	C	Si	Mn	P	S	Cu	Ni	Cr
Steel 20 (ASTM A106B)	0.17~0.24	0.17~0.37	0.35~0.65	0.035max	0.035max	0.25max	0.25max	0.25max
Steel45 (ASTM 1045)	0.42~0.50	0.17~0.37	0.50~0.80	0.035max	0.035max	0.25max	0.25max	0.25max
16Mn(Q345B)	0.12~0.20	0.20~0.55	1.20~1.60	0.035max	0.035max	0.25max	0.25max	0.25max
45Mn2 ( ASTM1345)	0.42~0.49	0.17~0.37	1.40~1.80	0.035max	0.035max	0.3max	0.3max	0.30max

Q: How do you determine the maximum allowable stress for steel pipes?: To determine the maximum allowable stress for steel pipes, several factors need to be considered. These factors include the type of steel, the pipe's dimensions, and the operating conditions under which the pipe will be used. Firstly, the type of steel plays a crucial role in determining the maximum allowable stress. Different grades of steel have varying mechanical properties, including yield strength, tensile strength, and elongation. These properties define the material's ability to withstand stress before deformation or failure. Therefore, understanding the specific grade of steel used in the pipes is vital in determining the maximum allowable stress. Secondly, the dimensions of the pipe are essential. The outer diameter, wall thickness, and length all influence the pipe's strength and ability to handle stress. By calculating the cross-sectional area and moment of inertia, engineers can determine the pipe's resistance to bending and axial stresses. These calculations, along with the material properties, help establish the maximum allowable stress. Lastly, the operating conditions under which the pipe will be subjected to are critical. Factors such as temperature, pressure, and the presence of corrosive substances can significantly impact a steel pipe's maximum allowable stress. Elevated temperatures can affect the steel's mechanical properties, while high pressures can induce additional stress. The presence of corrosive substances can lead to material degradation and decrease the pipe's strength. Considering these operational factors is crucial in determining the maximum allowable stress. To sum up, determining the maximum allowable stress for steel pipes involves considering the specific grade of steel, the pipe's dimensions, and the operating conditions. By analyzing these factors, engineers can ensure that the steel pipe is designed and used within its safe stress limits.

Q: Can steel pipes be used for heating and cooling systems?: Yes, steel pipes can be used for heating and cooling systems. Steel pipes are commonly used in HVAC (heating, ventilation, and air conditioning) systems as they have excellent heat transfer properties, durability, and can withstand high-pressure conditions. Additionally, steel pipes are resistant to corrosion, making them suitable for both heating and cooling applications.

Q: Can steel pipes be used for transporting slurry?: Yes, steel pipes can be used for transporting slurry. Steel pipes are commonly used in various industries, including mining, construction, and oil and gas, for transporting different types of fluids, including slurry. Slurry is a mixture of solid particles suspended in a liquid, usually water, and steel pipes have the required strength and durability to handle the abrasive nature of slurry. Additionally, steel pipes have excellent resistance to corrosion, which is crucial when dealing with slurry that may contain corrosive elements. The smooth inner surface of steel pipes also helps to minimize friction and ensure efficient flow of the slurry. Overall, steel pipes are a reliable and commonly used choice for transporting slurry due to their strength, durability, corrosion resistance, and smooth inner surface.

Q: How are steel pipes used in the telecommunications infrastructure?: Steel pipes are used in the telecommunications infrastructure for various purposes such as underground cable installation, mounting antennas, and supporting communication towers. They provide durability, strength, and protection for the cables and equipment, ensuring reliable and efficient communication networks.

Q: Can steel pipes be coated for aesthetic purposes?: Indeed, steel pipes have the potential to be coated solely for aesthetic reasons. By applying coatings to steel pipes, not only can one achieve an attractive appearance, but also safeguard them against corrosion and other environmental influences. Numerous coating choices are at one's disposal when it comes to steel pipes, including powder coating, epoxy coating, and vinyl coating, among others. These coatings can be employed in various colors and textures to enrich the pipes' visual appeal and harmonize with their surroundings. Whether utilized in industrial settings, architectural endeavors, or for decorative purposes, the act of coating steel pipes has the power to metamorphose them into visually captivating components, all while preserving their structural integrity.

Q: Can steel pipes be used for conveying slurry?: Yes, steel pipes can be used for conveying slurry. Steel pipes are commonly used in industries such as mining, dredging, and wastewater treatment, where slurry - a mixture of solid particles and liquid - needs to be transported. Steel pipes offer high strength, durability, and resistance to abrasion, making them suitable for handling the abrasive nature of slurry. Additionally, steel pipes can be lined or coated with materials such as rubber or ceramic to further enhance their resistance to wear and corrosion, making them a reliable choice for conveying slurry.

Q: Can steel pipes be used for chimney flues?: Yes, steel pipes can be used for chimney flues. Steel pipes are often used as a viable option for chimney flues due to their durability, heat resistance, and ability to withstand high temperatures. However, it is important to ensure that the steel pipes used are specifically designed and approved for chimney flue applications to meet safety standards and regulations.

Q: What are the common methods for cleaning the inner surface of steel pipes?: There are several common methods for cleaning the inner surface of steel pipes. Some of the most widely used methods include: 1. Mechanical Cleaning: This method involves the use of mechanical tools such as wire brushes, scrapers, or abrasive pads to physically remove debris, rust, or scale from the inner surface of the steel pipe. This method is effective for removing loose or loosely adhered contaminants. 2. Chemical Cleaning: Chemical cleaning involves the use of acidic or alkaline solutions to dissolve or loosen stubborn deposits, rust, or scale on the inner surface of steel pipes. The solution is usually circulated through the pipe for a specific period of time, allowing the chemical to react and break down the contaminants. This method is often used when mechanical cleaning is not sufficient. 3. High-Pressure Water Jetting: In this method, high-pressure water is directed through a nozzle into the steel pipe, effectively removing debris, rust, or scale from the inner surface. The force of the water jet helps dislodge and flush out the contaminants. This method is particularly efficient for cleaning pipes with complex geometries or hard-to-reach areas. 4. Shot Blasting: Shot blasting involves the use of high-speed abrasive particles propelled against the inner surface of the steel pipe to remove rust, scale, or other contaminants. This method is commonly used for larger pipes or pipes with heavy deposits. It provides a thorough and uniform cleaning by removing the surface layer of the steel along with the contaminants. 5. Ultrasonic Cleaning: Ultrasonic cleaning uses high-frequency sound waves to create microscopic bubbles in a cleaning solution. These bubbles implode upon contact with the inner surface of the steel pipe, effectively loosening and removing contaminants. This method is particularly effective for cleaning small-diameter pipes or pipes with intricate details. It is important to note that the selection of the cleaning method depends on various factors such as the type and extent of contamination, pipe size and geometry, and the desired level of cleanliness. Additionally, proper safety measures should always be taken when performing any cleaning method to ensure the protection of workers and the integrity of the steel pipes.

Q: Can steel pipes be used for underground drainage?: Yes, steel pipes can be used for underground drainage. Steel pipes are commonly used in underground drainage systems due to their durability, strength, and resistance to various environmental factors. They are able to withstand heavy loads, pressures, and corrosion, making them suitable for long-term underground drainage applications.

Q: What are the different types of steel pipes?: There are several different types of steel pipes, including seamless steel pipes, welded steel pipes, galvanized steel pipes, and stainless steel pipes.

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