Carbon black seamless steel pipe DIN17175 ST35

Carbon black seamless steel pipe 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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Seamless tube ASTM A53/ASTM A 106/API 5L grade B

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 pipes available?: There are various types of steel pipes available in the market, each designed to meet specific requirements in different applications. Some of the commonly used types of steel pipes include: 1. Carbon Steel Pipes: These are the most common type of steel pipes and are primarily made of carbon. They are used in a wide range of applications, including transportation of fluids and gases, structural applications, and plumbing. 2. Stainless Steel Pipes: These pipes are made of an alloy that contains a high percentage of chromium, which provides excellent corrosion resistance. Stainless steel pipes are widely used in industries such as oil and gas, chemical processing, and food processing. 3. Alloy Steel Pipes: As the name suggests, these pipes are made of an alloy that contains a combination of different elements, such as chromium, molybdenum, and nickel. Alloy steel pipes offer enhanced strength, durability, and resistance to high temperatures, making them suitable for applications in power plants, refineries, and petrochemical industries. 4. Galvanized Steel Pipes: These pipes are coated with a layer of zinc to protect them from corrosion. Galvanized steel pipes are commonly used in plumbing systems, water supply lines, and outdoor structures due to their excellent resistance to rust and long-lasting durability. 5. Seamless Steel Pipes: These pipes are manufactured without any welding seam and are often preferred for applications that require high pressure, high temperature, or a smooth inner surface. Seamless steel pipes are commonly used in industries such as oil and gas, automotive, and aerospace. 6. Welded Steel Pipes: These pipes are manufactured by welding two pieces of steel together. They are available in various shapes and sizes and are commonly used in construction, water supply systems, and general engineering applications. 7. ERW (Electric Resistance Welded) Steel Pipes: These pipes are manufactured by passing a high-frequency electric current through the steel strip and then welding the edges together. ERW steel pipes are widely used in oil and gas transportation, structural applications, and fencing. 8. LSAW (Longitudinal Submerged Arc Welded) Steel Pipes: These pipes are made by bending and welding a steel plate into a cylindrical shape. LSAW steel pipes are commonly used in large-scale infrastructure projects, such as oil and gas pipelines and bridge construction. In summary, the different types of steel pipes available include carbon steel pipes, stainless steel pipes, alloy steel pipes, galvanized steel pipes, seamless steel pipes, welded steel pipes, ERW steel pipes, and LSAW steel pipes. The choice of steel pipe type depends on the specific requirements of the application, including factors such as corrosion resistance, strength, temperature, and pressure resistance.

Q: How are steel pipes used in the agriculture sector?: Steel pipes are commonly used in the agriculture sector for various purposes such as irrigation, drainage systems, and the transportation of water, chemicals, and fertilizers. They are also used in the construction of greenhouse structures and livestock enclosures, providing durability and strength to withstand harsh agricultural environments. Additionally, steel pipes are employed for post and pole applications, supporting fences and gates on farms.

Q: What is the density of steel pipes?: The density of steel pipes varies depending on their composition, but on average, the density of steel pipes is around 7.8 grams per cubic centimeter.

Q: What are the different types of gaskets used with steel pipes?: There are several types of gaskets commonly used with steel pipes, including spiral wound, ring joint, and flat gaskets. Spiral wound gaskets are made by winding a metal strip and a filler material together, providing excellent sealing properties. Ring joint gaskets are typically used in high-pressure applications and have a metallic ring shape to ensure a tight seal. Flat gaskets, on the other hand, are simple, flat pieces of material, often made from rubber or graphite, and are used for low-pressure applications.

Q: How are steel pipes used in the manufacturing of structural frameworks?: Steel pipes are commonly used in the manufacturing of structural frameworks due to their strength and durability. They are used as structural members to support the weight of buildings, bridges, and other infrastructure. Steel pipes are often used as columns, beams, and braces to provide stability and load-bearing capacity to the structures. The pipes are typically welded or bolted together to create a rigid framework that can withstand heavy loads and structural forces.

Q: What are the common uses of steel pipes in construction?: Steel pipes are commonly used in construction for various purposes due to their durability and strength. One of the most common uses of steel pipes in construction is for plumbing systems. Steel pipes are often used to carry water, gas, and other fluids throughout a building. They are preferred over other materials due to their resistance to corrosion and ability to withstand high pressure. Another common use of steel pipes in construction is for structural support. Steel pipes are often used as columns or beams to provide structural integrity to buildings. They can support heavy loads and provide stability to structures, making them a popular choice in the construction industry. Steel pipes are also commonly used in the construction of bridges and highways. They are used for creating strong and durable bridge supports, guardrails, and signposts. Steel pipes are able to withstand extreme weather conditions and heavy traffic, making them a reliable choice for infrastructure projects. Furthermore, steel pipes are used for underground utilities such as sewer and drainage systems. They provide a strong and long-lasting solution for transporting wastewater and preventing leaks. Steel pipes are also used in the construction of underground tunnels and pipelines. In addition to these common uses, steel pipes are also utilized in construction for fencing, scaffolding, and handrails. They are chosen for their strength, versatility, and ability to withstand harsh environmental conditions. Overall, steel pipes are an essential component in construction due to their numerous advantages. Their durability, strength, and resistance to corrosion make them a reliable choice for various applications in the construction industry.

Q: How are steel pipes used in railway infrastructure?: Steel pipes are used in railway infrastructure for various purposes such as the construction of railway tracks, signaling systems, and drainage systems. They are commonly used as support structures for overhead electrical lines and as conduits for cables and wires. Additionally, steel pipes are used in the fabrication of bridges, tunnels, and platforms, ensuring the overall strength and stability of railway structures.

Q: What are the applications of galvanized steel pipes?: Galvanized steel pipes have a wide range of applications in various industries. They are commonly used in plumbing systems to deliver water and gas due to their excellent corrosion resistance. Additionally, they are used in the construction industry for structural purposes, such as scaffolding, fences, and handrails. Galvanized steel pipes are also utilized in the agricultural sector for irrigation systems and as posts for supporting crops. Furthermore, they find usage in oil and gas pipelines, HVAC systems, and automotive manufacturing. Overall, the applications of galvanized steel pipes are diverse, making them an essential material in multiple sectors.

Q: How are steel pipes tested for pressure and leakage?: To ensure the safety and reliability of steel pipes, various methods are employed to test them for pressure and leakage. Hydrostatic testing is a commonly used technique, whereby the pipe is filled with water and subjected to a specific pressure for a set period of time. This examination aims to detect any weaknesses or leaks by observing if there is a drop in pressure or visible water leakage. The test carefully monitors and measures the pressure, and if the pipe successfully withstands the required pressure without any signs of leakage, it is deemed to have passed. In addition to hydrostatic testing, other non-destructive methods can also be utilized. Ultrasonic testing, for instance, employs high-frequency sound waves to identify flaws or defects in the pipe material. Similarly, magnetic particle testing involves the application of a magnetic field to the pipe and inspecting it for any magnetic particles that may indicate cracks or imperfections. Furthermore, visual inspection is a crucial component of the pressure and leakage testing of steel pipes. Trained inspectors thoroughly examine both the exterior and interior surfaces of the pipe to detect any visible signs of damage, such as corrosion, cracks, or faulty welds. This visual assessment aids in identifying potential weak points that may lead to leaks or failures under pressure. In summary, a comprehensive evaluation of steel pipes for pressure and leakage involves a combination of hydrostatic testing, non-destructive methods, and visual inspection. These rigorous procedures guarantee that the pipes meet the required standards and are safe for their intended applications.

Q: What are the different types of steel pipe connections for fire sprinkler systems?: There are several types of steel pipe connections commonly used in fire sprinkler systems, including threaded connections, grooved connections, and welded connections. Threaded connections involve screwing the pipes together using tapered threads and are commonly used for smaller pipe sizes. Grooved connections use a coupling and gasket system to join the pipes, creating a secure and flexible connection. Welded connections involve permanently joining the pipes together using heat and are typically used for larger pipe sizes or in situations where maximum strength is required.

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