Seamless hot rolled black steel pipe Gr.B

Seamless hot rolled black steel pipe Gr.B

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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 pipe supports for overhead piping?: Some of the different types of steel pipe supports for overhead piping include clevis hangers, beam clamps, pipe straps, and pipe rollers. Clevis hangers are used to suspend the pipe from a beam or other structural element. Beam clamps attach the pipe to a beam or other support structure. Pipe straps are used to secure the pipe to a wall or other surface. Pipe rollers allow the pipe to move freely while providing support.

Q:What are the main aspects of precision steel tubes?: Precision tube is a kind of seamless steel tube with high precision and high brightness produced by cold drawing or cold rolling.

Q:Can steel pipes be used for the construction of high-rise buildings?: Yes, steel pipes can be used for the construction of high-rise buildings. Steel pipes are commonly used in the construction industry due to their strength, durability, and ability to withstand high pressure and heavy loads. They are often used in the structural framework of high-rise buildings to provide structural support and stability. Additionally, steel pipes can be easily fabricated and installed, making them a suitable choice for constructing tall and complex structures.

Q:What is the difference between steel pipes and fiberglass pipes?: The main difference between steel pipes and fiberglass pipes lies in their composition and properties. Steel pipes are made of metal and are known for their strength, durability, and resistance to high temperatures and pressure. They are commonly used in industrial settings and for transporting liquids and gases. On the other hand, fiberglass pipes are made of glass fibers embedded in a resin matrix, providing them with excellent corrosion resistance, lightweight properties, and insulation capabilities. Fiberglass pipes are often used in applications where corrosion is a concern, such as in chemical processing plants or wastewater treatment facilities.

Q:Can steel pipes be used for structural supports?: Yes, steel pipes can be used as structural supports due to their high strength, durability, and ability to withstand heavy loads. They are commonly used in construction for applications such as columns, beams, and braces, providing stability and support to various structures.

Q:What is the dimensional stability of steel pipes?: The dimensional stability of steel pipes refers to their ability to maintain their shape and size under different conditions and over time. Steel pipes are known for their excellent dimensional stability, as they are highly resistant to deformation, warping, and expansion or contraction caused by temperature variations or external forces. This stability is attributed to the inherent strength and rigidity of steel, making it a reliable choice for various applications where maintaining precise dimensions is crucial.

Q:What is the tensile strength of steel pipes?: The tensile strength of steel pipes can vary depending on the grade and type of steel used. However, on average, steel pipes typically have a tensile strength ranging from 300 to 700 megapascals (MPa).

Q:Can steel pipes be used for underground water supply networks?: Steel pipes are a viable option for underground water supply networks; they possess qualities such as durability, strength, and corrosion resistance. These pipes are commonly employed due to their ability to endure high pressure and bear the weight of the soil and other external forces. Furthermore, steel pipes come in a range of sizes and can be easily welded, making them suitable for diverse water supply system needs. Nevertheless, it is crucial to consider factors like soil quality, the presence of corrosive substances or chemicals, and the necessity of routine maintenance to guarantee the long-lasting effectiveness of steel pipes in underground water supply networks.

Q:What are the advantages of using steel pipes in construction projects?: Using steel pipes in construction projects offers numerous benefits. Firstly, the strength and durability of steel pipes are remarkable. With a high tensile strength, they can withstand heavy loads and pressures without any deformation or breakage. This makes them ideal for projects that require structural integrity, such as building construction, bridge building, and infrastructure development. Secondly, steel pipes exhibit exceptional resistance to corrosion. They are typically coated with protective layers, like galvanized zinc or epoxy, which prevent rusting and extend their lifespan. Consequently, steel pipes are suitable for both aboveground and underground applications, including water and sewage systems, oil and gas pipelines, and industrial processing plants. Furthermore, steel pipes offer great versatility in terms of shape and size. They can be manufactured in various diameters and thicknesses, allowing for customization to meet specific project requirements. This flexibility in design makes steel pipes suitable for a wide range of applications in construction, including plumbing, HVAC systems, and structural supports. Moreover, steel pipes are relatively easy to install and maintain. They can be welded, threaded, or bolted together, providing a secure and leak-proof connection. This ease of installation reduces construction time and labor costs. Additionally, steel pipes require minimal maintenance, as they are resistant to cracking, chipping, and warping. This makes them a cost-effective choice over the long term. Lastly, steel pipes are environmentally friendly. They are 100% recyclable, meaning they can be reused and repurposed without compromising their structural integrity. By recycling steel pipes, the demand for new raw materials is reduced, and waste generation is minimized. Therefore, steel pipes are a sustainable option for construction projects. In summary, the advantages of using steel pipes in construction projects encompass their strength, corrosion resistance, versatility, ease of installation and maintenance, and environmental sustainability. These attributes make steel pipes a reliable and cost-effective choice for a wide range of applications in the construction industry.

Q:What does GALV mean in a steel tube?: Steel tube (Steel pipe) production technology development began in the bicycle manufacturing industry, the rise of the early nineteenth Century during the oil development, the two world war ships, boilers, aircraft manufacturing, manufacturing of power boiler after the Second World War, the development of chemical industry of petroleum and natural gas drilling and transportation, will effectively promote the the yield and quality of varieties, the development of steel tube industry.

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