Cold draw black seamless steel tube made in China

Cold draw black seamless steel tube made in China

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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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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: Can steel pipes be used in plumbing systems?: Yes, steel pipes can be used in plumbing systems. Steel pipes have been traditionally used in plumbing systems for their durability, strength, and resistance to corrosion. However, other materials like copper and plastic pipes have become more popular in recent years due to their ease of installation, lower cost, and better resistance to certain types of corrosion.

Q: How are steel pipes coated for protection against external elements?: Steel pipes can be coated for protection against external elements through a process called corrosion protection coating. This typically involves applying a layer of protective coating, such as epoxy or polyethylene, onto the surface of the steel pipes. The coating acts as a barrier, preventing moisture, chemicals, and other external elements from coming into direct contact with the steel, thus reducing the risk of corrosion and extending the lifespan of the pipes.

Q: Can steel pipes be used for underground cable protection?: Yes, steel pipes can be used for underground cable protection. Steel pipes offer durability, strength, and corrosion resistance, making them suitable for protecting cables from external factors such as moisture, chemicals, and physical damage. Additionally, steel pipes can be coated or galvanized to provide further protection against rust and corrosion.

Q: How are steel pipes used in industrial manufacturing processes?: Steel pipes are commonly used in industrial manufacturing processes for various purposes such as transporting fluids, gases, and solids, providing structural support, and facilitating heat transfer. They are used in industries like oil and gas, construction, automotive, and manufacturing, where they are utilized for plumbing systems, conveyance of materials, and as a durable and reliable medium for handling high-pressure and high-temperature applications.

Q: How are steel pipes used in the manufacturing of food processing machinery and equipment?: Steel pipes are an essential component in the manufacturing of food processing machinery and equipment due to their numerous advantageous properties. These pipes are widely used in the food industry for their durability, corrosion resistance, and ability to withstand high temperatures and pressures. One of the primary applications of steel pipes in food processing machinery is for the transportation of various fluids and gases. These pipes are used to carry water, steam, and other liquids, as well as air and gases, throughout the processing plant. Steel pipes provide a reliable and hygienic means of transferring these substances, ensuring that the quality and safety of the food products are maintained. Moreover, steel pipes are also utilized in the design and construction of food processing equipment such as mixers, blenders, conveyors, and canning machines. These machines often require the use of pipes to facilitate the movement of ingredients, processing fluids, and cleaning agents. Steel pipes are an ideal choice for these applications due to their high strength, which allows them to handle the heavy loads and pressures associated with food processing operations. Another crucial aspect of steel pipes in food processing machinery is their resistance to corrosion. Food processing involves the use of various acidic and alkaline substances, as well as hot water and steam, which can cause corrosion in other materials. Steel pipes, particularly those made from stainless steel, are highly resistant to corrosion, ensuring that the machinery remains in optimal condition and prolonging its lifespan. Furthermore, the smooth internal surface of steel pipes allows for efficient and hygienic cleaning, as it minimizes the accumulation of food particles and contaminants. This is of utmost importance in the food industry, where maintaining high levels of cleanliness is essential to prevent the growth of bacteria and ensure food safety. In summary, steel pipes play a crucial role in the manufacturing of food processing machinery and equipment. Their durability, corrosion resistance, ability to handle high temperatures and pressures, and hygienic characteristics make them an ideal choice for the transportation of fluids and gases, as well as for the construction of various food processing equipment.

Q: Can steel pipes be used for aboveground applications?: Yes, steel pipes can be used for aboveground applications. Steel pipes are known for their strength, durability, and resistance to corrosion, which makes them suitable for various aboveground applications. They are commonly used in industries such as construction, oil and gas, water transportation, and infrastructure development. Steel pipes can be used for aboveground applications such as structural supports, handrails, fencing, scaffolding, outdoor pipelines, and various other outdoor structures. Additionally, steel pipes can be coated or painted to provide further protection against weather conditions and enhance their aesthetic appearance. Overall, steel pipes are a versatile choice for aboveground applications due to their reliability and long-lasting performance.

Q: How do steel pipes resist corrosion?: Steel pipes resist corrosion through a process called passivation, where a protective layer of chromium oxide forms on the surface of the steel, preventing direct contact with corrosive elements and slowing down the oxidation process. Additionally, steel pipes can be coated with protective layers such as zinc or epoxy to provide an extra barrier against corrosion.

Q: Can steel pipes be used for bridge piling?: Yes, steel pipes can be used for bridge piling. Steel pipes are commonly used for bridge piling due to their strength, durability, and resistance to corrosion. They provide a strong foundation for bridges, ensuring stability and longevity.

Q: Can steel pipes be bent or shaped to meet specific requirements?: Yes, steel pipes can be bent or shaped to meet specific requirements through various techniques such as hot bending, cold bending, or using specialized machinery like pipe benders.

Q: How are steel pipes used in the construction of power transmission lines?: Steel pipes are commonly used in the construction of power transmission lines due to their exceptional strength, durability, and versatility. These pipes serve various purposes throughout the project, contributing to the overall efficiency and reliability of the power transmission system. One primary application of steel pipes in power transmission line construction is for the installation of transmission towers. These pipes are used as structural components to support the transmission lines and maintain their alignment. The high strength of steel ensures that the towers can withstand the weight of the transmission lines, as well as external forces such as wind and ice loads. Moreover, steel pipes offer excellent resistance against corrosion, which is crucial for the longevity of the transmission tower structures. In addition to tower construction, steel pipes are also utilized for the underground transmission lines. These pipes act as conduits for the cables, protecting them from external elements and potential damage. Steel pipes are particularly advantageous in this application due to their ability to resist soil movement, withstand high pressure, and provide a secure pathway for the power cables. Furthermore, the durability of steel ensures the integrity and longevity of the underground transmission lines, reducing maintenance requirements and enhancing the overall reliability of the power transmission system. Furthermore, steel pipes are used for the construction of foundations and anchors for transmission towers. These pipes are driven deep into the ground to provide stability and support to the towers. The inherent strength and rigidity of steel pipes make them ideal for this purpose, as they can withstand the heavy loads and ensure the stability of the transmission towers even in adverse weather conditions. Overall, steel pipes play a crucial role in the construction of power transmission lines by providing structural support, protecting cables, and ensuring the overall reliability and efficiency of the transmission system. Their exceptional strength, durability, and resistance to corrosion make steel pipes an ideal choice for power transmission line construction projects.

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