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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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 for airport construction?: Yes, steel pipes can be used for airport construction. Steel pipes are commonly used in various construction projects due to their durability, strength, and resistance to corrosion. They are capable of withstanding heavy loads and are often used for underground drainage systems, water supply networks, and structural support in airport construction.

Q: How are steel pipes used in the food processing industry?: Steel pipes are commonly used in the food processing industry for various purposes such as transporting liquids, gases, and solids, as well as for conveying hot water, steam, and chemicals. These pipes are known for their durability, corrosion resistance, and ability to withstand high temperatures, making them ideal for applications where strict hygiene and safety standards are essential. Steel pipes are used in food processing plants for tasks like transferring ingredients, transporting processed products, and maintaining a sterile environment through steam cleaning and sanitization processes.

Q: What are the different coating materials used for steel pipes?: Some common coating materials used for steel pipes include epoxy, polyethylene, polyurethane, and coal tar enamel. These coatings are applied to protect the steel from corrosion and provide a barrier against environmental elements.

Q: How are steel pipes resistant to corrosion?: Steel pipes are resistant to corrosion due to a combination of factors. Firstly, steel pipes are often coated with a protective layer, such as zinc or epoxy, which acts as a barrier between the steel and the surrounding environment. This coating prevents moisture and other corrosive substances from coming into contact with the steel, reducing the chances of corrosion. Additionally, the composition of steel itself plays a role in its corrosion resistance. Steel is primarily made up of iron, with small amounts of other elements added to enhance its strength and durability. These elements, such as chromium and nickel, create a protective oxide layer on the surface of the steel. This oxide layer acts as a natural barrier, preventing the underlying steel from being exposed to moisture and oxygen, which are key contributors to corrosion. Furthermore, steel pipes can be treated through a process called galvanization, where a layer of zinc is applied to the surface. This zinc coating provides an extra layer of protection against corrosion, as zinc is highly resistant to rust and oxidation. The zinc sacrificially corrodes instead of the steel, further extending the lifespan of the pipe. Overall, the combination of protective coatings, the composition of steel, and galvanization processes all contribute to the corrosion resistance of steel pipes. This makes them highly durable and suitable for various applications, including plumbing, construction, and transportation of fluids and gases.

Q: How are steel pipes used in the construction of high-rise buildings?: Steel pipes are commonly used in the construction of high-rise buildings for various purposes, including structural support, plumbing, and fire protection. These pipes provide strength and durability to support the weight of the building, allowing for taller structures. They are used to create the building's framework, as well as for the distribution of water, gas, and other utilities throughout the building. Additionally, steel pipes are often used for fire sprinkler systems, providing a reliable and efficient method of fire protection in high-rise buildings.

Q: How can galvanized steel tubes be painted on the surface?: Galvanized parts are nonferrous metals, ferrous metals are black, all metal adhesion is poor;

Q: What are the different methods of pipe welding for steel pipes?: There are several methods of pipe welding for steel pipes, including Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), Flux-Cored Arc Welding (FCAW), Submerged Arc Welding (SAW), and Tungsten Inert Gas Welding (TIG). Each method has its own advantages and is used depending on the specific requirements of the project, such as the thickness of the pipe, the type of steel, and the desired weld quality.

Q: What is the difference between black steel pipe and galvanized steel pipe?: The main difference between black steel pipe and galvanized steel pipe lies in their coating. Black steel pipe is untreated and has a dark, matte appearance, while galvanized steel pipe is coated with a layer of zinc to prevent rusting and has a silver, shiny appearance. This coating makes galvanized steel pipes more durable and suitable for outdoor use, while black steel pipes are commonly used for indoor plumbing and gas lines.

Q: Can steel pipes be used for high-pressure applications?: Yes, steel pipes can be used for high-pressure applications. Steel is known for its strength and resilience, making it a suitable material for handling high-pressure fluids or gases. Additionally, steel pipes can withstand extreme temperatures and are resistant to corrosion, further enhancing their suitability for high-pressure applications.

Q: How are steel pipes used in the manufacturing of power distribution systems?: Steel pipes are commonly used in the manufacturing of power distribution systems as they provide a reliable and durable solution for transporting and protecting electrical cables. They are used to create conduits that house the cables, ensuring safe and efficient transmission of electricity throughout the system. Steel pipes also offer resistance to corrosion, fire, and extreme weather conditions, making them a suitable choice for power distribution systems.

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