Cold draw black seamless steel pipe made in China

Cold draw black seamless steel pipe 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: What are the different types of steel coatings used for pipes?: There are several types of steel coatings used for pipes, including epoxy, polyethylene, polypropylene, and fusion bonded epoxy (FBE) coatings. Each of these coatings provides different levels of corrosion resistance and protection, making them suitable for various applications and environmental conditions.

Q: Can steel pipes be used for underground stormwater drainage?: Indeed, underground stormwater drainage can utilize steel pipes. These pipes possess durability and boast a high strength-to-weight ratio, rendering them appropriate for subterranean usage. They can endure substantial burdens and fend off corrosion, thus guaranteeing sustained effectiveness within stormwater drainage systems. Furthermore, steel pipes lend themselves to easy welding, facilitating customization and flexibility during both design and installation. Nonetheless, it is imperative to implement adequate corrosion protection measures, such as the application of a protective coating or the utilization of corrosion-resistant alloys, to avert degradation over time. Regular maintenance and monitoring are also advisable to uphold the pipes' integrity and ensure optimal stormwater drainage functionality.

Q: Can steel pipes be used for conveyor systems?: Yes, steel pipes can be used for conveyor systems. Steel pipes are commonly used in conveyor systems due to their high strength, durability, and ability to withstand heavy loads and harsh environments. They provide a reliable and long-lasting solution for transporting various materials in conveyor applications.

Q: How are steel pipes protected against mechanical damage during transportation?: Various measures are implemented to safeguard steel pipes against mechanical damage during transportation. One commonly used technique involves the application of protective coatings or wrapping materials, typically composed of plastic, rubber, or epoxy. These coatings serve as a physical barrier, shielding the pipes from scratches, dents, and other forms of mechanical harm. Another method involves the utilization of padding or cushioning materials, such as foam inserts or rubber gaskets. These materials are inserted inside or wrapped around the pipes, absorbing any impacts or shocks that may occur during transportation. This effectively prevents potential damage caused by vibrations or bumps. Additionally, steel pipes are frequently secured and immobilized within transportation containers through the use of straps, braces, or other securing devices. These measures ensure that the pipes remain stable and do not collide with one another, thereby minimizing the risk of mechanical harm. Furthermore, proper handling and loading techniques play a crucial role in protecting steel pipes during transportation. This involves the utilization of appropriate lifting equipment, such as cranes or forklifts, to prevent any accidental dropping or mishandling of the pipes. Moreover, pipes are often stored or stacked in a manner that minimizes the possibility of deformation or bending. Ultimately, a combination of protective coatings, cushioning materials, securement devices, and proper handling techniques are employed to ensure the safe transportation of steel pipes and maintain their optimal condition for use in various applications.

Q: How many fasteners are there in a ton of steel tubes?: In general, 180-200 fasteners per ton of steel pipe.

Q: Are steel pipes resistant to UV radiation?: Yes, steel pipes are generally resistant to UV radiation. UV radiation is known to cause damage to materials over time, such as fading, discoloration, and degradation. However, steel pipes are typically coated with protective layers, such as paint or galvanization, which help to shield them from UV radiation. These coatings act as a barrier, preventing the direct exposure of steel to UV rays and minimizing the potential for damage. Additionally, the inherent properties of steel, including its strength and durability, make it less susceptible to the effects of UV radiation compared to other materials like plastics or rubber. However, it is important to note that prolonged exposure to intense UV radiation can still have some impact on steel pipes, such as slight discoloration or surface degradation. Regular maintenance and inspection are recommended to ensure the continued performance and longevity of steel pipes in outdoor or UV-exposed environments.

Q: How are steel pipes used in the manufacturing of offshore wind turbines?: Steel pipes are used in the manufacturing of offshore wind turbines for various purposes such as supporting the turbine structure, housing electrical cables, and transporting fluids like hydraulic oil and cooling water. These pipes provide structural strength, corrosion resistance, and durability, ensuring the stability and functionality of the turbines in the harsh offshore environment.

Q: Can steel pipes be used for automotive applications?: Yes, steel pipes can be used for automotive applications. Steel pipes are commonly used in the automotive industry for various purposes such as exhaust systems, fuel lines, and hydraulic systems. Steel pipes offer high strength, durability, and resistance to corrosion, making them suitable for withstanding the harsh conditions and demands of automotive applications. Additionally, steel pipes can be easily formed and welded, allowing for customization and ease of installation. Overall, steel pipes provide a reliable and cost-effective solution for automotive applications.

Q: Are steel pipes suitable for use in chemical plants?: Yes, steel pipes are suitable for use in chemical plants. Steel pipes offer excellent resistance to corrosion, high durability, and can withstand high temperatures and pressures commonly found in chemical processing. Additionally, steel pipes can be easily welded, making them versatile for various chemical applications.

Q: What are the thermal properties of steel pipes?: Steel pipes have excellent thermal conductivity, meaning they can efficiently transfer heat. They also have a high melting point and can withstand high temperatures without deformation. Additionally, steel pipes have low thermal expansion, allowing them to maintain their shape and structural integrity even when exposed to extreme temperature changes.

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