Carbon seamless steel pipe DIN17175 ST35

Carbon 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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Carbon Seamless steel pipe hot Rolled/Cold Rolled/ Cold Drawn

Seamless Steel pipe hot Rolled/Cold Rolled

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 infrastructure development?: Steel pipes are widely used in infrastructure development for various purposes. They are commonly used for transporting water, oil, and gas, as well as for drainage systems and sewage networks. Steel pipes are also used in the construction of bridges, buildings, and highways, providing structural support and stability. Additionally, steel pipes are utilized in underground utilities, such as telecommunications and electrical systems. Their durability, strength, and resistance to corrosion make steel pipes a crucial component in infrastructure development.

Q: How do you determine the maximum allowable stress for a steel pipe?: Several factors need to be taken into account in order to determine the maximum stress that a steel pipe can withstand. The type of steel used in the pipe is of utmost importance, as different types have varying mechanical properties and strengths. Additionally, the dimensions and thickness of the pipe are significant factors in determining its maximum stress capacity. Generally, thicker pipes have higher stress limits compared to thinner ones. Furthermore, it is crucial to consider the operating conditions that the pipe will be exposed to. This includes the temperature, pressure, and the nature of the fluid flowing through the pipe. These conditions can greatly impact the maximum stress that the pipe can tolerate. For instance, high temperatures or corrosive fluids can weaken the steel and reduce its strength. Engineers typically rely on industry standards and codes, such as the ASME Boiler and Pressure Vessel Code and the API standards, to determine the maximum stress limit. These standards provide guidelines and formulas for calculating the maximum stress based on the material properties, dimensions, and operating conditions of the pipe. It is important to emphasize that determining the maximum stress limit is a critical step in ensuring the structural integrity and safety of the steel pipe. It requires a comprehensive understanding of the materials, design considerations, and industry standards. Therefore, it is advisable to seek guidance from experienced engineers or professionals who specialize in piping design and analysis to accurately determine the maximum stress that a steel pipe can withstand.

Q: How are steel pipes used in the construction of pipelines?: Steel pipes are commonly used in the construction of pipelines due to their high durability, strength, and ability to withstand high pressure. These pipes are used to transport various fluids, such as oil, gas, and water, over long distances. They are welded together and laid underground or submerged to create a reliable and efficient transportation system for these resources.

Q: How are steel pipes used in water treatment plants?: Steel pipes are commonly used in water treatment plants for various purposes, such as transporting water from different sources, distributing water to different treatment units, and conveying treated water to storage tanks or distribution networks. They are also used in the construction of infrastructure components like pumping stations, filtration units, and chemical dosing systems. Additionally, steel pipes provide durability, corrosion resistance, and the ability to withstand high pressures, making them suitable for handling the demands of water treatment processes.

Q: What is the size of seamless steel tube DN150?: Seamless steel tube is generally used to indicate the outer diameter * wall thickness, DN150 seamless steel pipe GB wall thickness is 5mm. Wall thickness is a series of calculations based on your design, pressure, temperature, and pipe material.

Q: Can steel pipes be used for conveying hazardous chemicals?: Certainly, hazardous chemicals can indeed be conveyed through the use of steel pipes. Renowned for their exceptional strength and durability, steel pipes are ideally suited for the handling of various substances, including those that are hazardous. Their ability to withstand both high pressure and temperature ensures the secure transportation of these chemicals. Furthermore, steel pipes possess outstanding resistance to corrosion, a critical factor when dealing with potentially dangerous and corrosive materials. In addition, the ease with which steel pipes can be welded and connected allows for the establishment of a dependable and impervious transport system. Nevertheless, it is imperative to carefully consider the specific requirements of the chemicals being transported and diligently ensure that the steel pipes are appropriately designed, coated, and maintained, thereby averting any potential risks or reactions that may arise with the hazardous substances.

Q: How are steel pipes used in the telecommunications industry?: Steel pipes are commonly used in the telecommunications industry for various purposes such as underground cable installation, protection of fiber optic cables, and support of communication towers.

Q: How do steel pipes handle ground freezing and thawing?: Steel pipes are highly resistant to the effects of ground freezing and thawing. The inherent strength and durability of steel make it an ideal material for handling these thermal cycles. When the ground freezes, steel pipes are able to withstand the expansion forces exerted by the freezing water without any significant damage. The structural integrity of steel pipes remains intact even under extreme cold conditions. During thawing, steel pipes also fare well due to their ability to contract without compromising their strength. The material's flexibility ensures that it can accommodate the contraction of the ground without causing any structural issues. Steel pipes do not crack or break when exposed to the rapid temperature changes associated with thawing. Furthermore, steel pipes have a smooth internal surface, which reduces the risk of ice formation and subsequent blockages. This is particularly important in areas with frequent freezing and thawing cycles, as it helps to maintain a consistent flow of fluids or gases through the pipes. In summary, steel pipes are an excellent choice for handling ground freezing and thawing. Their strength, durability, and ability to withstand temperature fluctuations make them a reliable and long-lasting solution in such environments.

Q: What are the factors affecting the lifespan of steel pipes?: There are several factors that can affect the lifespan of steel pipes. These include the quality of the steel used, the thickness of the pipe wall, the presence of corrosive substances or environments, the level of maintenance and care, and the exposure to extreme temperatures or physical stress.

Q: Are steel pipes suitable for transporting chemicals?: Yes, steel pipes are highly suitable for transporting chemicals. This is due to their excellent resistance to corrosion and high durability, ensuring the safe and efficient transportation of various chemicals over long distances.

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