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:How are steel pipes used in the manufacturing of chemical storage tanks?: Steel pipes are commonly used in the manufacturing of chemical storage tanks as they provide durability, strength, and corrosion resistance. These pipes are utilized for the construction of the tank's framework and support system, ensuring stability and structural integrity. Additionally, steel pipes are often employed for the installation of inlet and outlet connections, allowing for the safe and efficient transfer of chemicals in and out of the tank.

Q:What is hot rolled steel pipe? What is a cold drawn steel tube?: Hot rolling is relative to cold rolling, cold rolling is performed under recrystallization temperature, while hot rolling is rolling above recrystallization temperature.

Q:What are the different surface finishes available for steel pipes?: There are several different surface finishes available for steel pipes, including mill finish, galvanized finish, painted finish, and polished finish.

Q:What are the different joining methods for steel pipes?: The different joining methods for steel pipes include welding, threaded connections, flanges, and grooved connections.

Q:What is the elasticity of steel pipes?: Steel pipes exhibit elasticity, which allows them to undergo deformation when external forces are applied and regain their original shape once the force is no longer present. The high elasticity of steel pipes is well-known, as it enables them to endure different types of stress and strain without suffering permanent deformation. This characteristic is vital in situations where pipes experience pressure, bending, or other mechanical forces. The elasticity of steel pipes is determined by material properties like its Young's modulus, which quantifies its stiffness and capacity to resist deformation.

Q:What is the difference between steel pipes and cast iron soil pipes?: Steel pipes and cast iron soil pipes differ in their composition and characteristics. Steel pipes are made of an alloy of iron and carbon, providing them with high strength and durability. They are commonly used for transporting fluids and gases, and are resistant to corrosion. On the other hand, cast iron soil pipes are made from molten iron that is poured into molds. They are primarily used for drainage and sewage systems due to their excellent soundproofing properties. Cast iron soil pipes are more resistant to fire and have a longer lifespan compared to steel pipes. Additionally, cast iron soil pipes are typically heavier and thicker than steel pipes, making them more suitable for underground installations. However, steel pipes are lighter and easier to handle, making them a preferred choice for above-ground applications. Ultimately, the choice between steel pipes and cast iron soil pipes depends on the specific requirements of the project, such as the intended use, location, and budget.

Q:Is the same specification seamless steel pipe more expensive than welded pipe?: You need to see this in the interval that diameter, such as seamless pipe and welded steel tube 530*20 mm compared to 5450 yuan per ton, seamless pipe, welded steel pipe, which is 4550 yuan, small diameter 10*2 mm, seamless pipe will require far 10000 per ton, just need more than 6000

Q:What is the role of steel pipes in power plants?: Steel pipes play a crucial role in power plants as they are used for the transportation of various fluids, such as water, steam, and oil, throughout the facility. They provide a reliable and durable means of conveying these substances under high pressure and extreme temperatures, ensuring the smooth operation of power generation processes. Additionally, steel pipes are also utilized for structural support in power plant construction, serving as a vital component in the overall infrastructure of the facility.

Q:What are the different methods of coating steel pipes?: There are several methods of coating steel pipes, including fusion bonded epoxy (FBE) coating, liquid epoxy coating, polyethylene (PE) coating, and polyurethane (PU) coating. Each method offers unique advantages and is chosen based on factors such as the desired level of corrosion protection, application environment, and project requirements.

Q:Can steel pipes be used for underground utility lines?: Yes, steel pipes can be used for underground utility lines. Steel pipes are commonly used for various underground applications, including water, gas, and oil pipelines. They are known for their strength, durability, and resistance to corrosion, making them suitable for underground installations where protection against external elements is required. Additionally, steel pipes are often used in areas with high traffic loads or areas prone to natural disasters, as they provide excellent structural integrity and can withstand heavy loads and external pressures.

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