Seamless steel tube API,GB,ASTM,ASME,DIN

Seamless steel tube API,GB,ASTM,ASME,DIN

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 5000 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: Are steel pipes affected by UV rays?: Yes, steel pipes can be affected by UV rays. Exposure to UV rays can cause the steel to degrade and corrode over time. Therefore, it is important to protect steel pipes from direct sunlight and UV radiation to prolong their lifespan and maintain their structural integrity.

Q: How to calculate the maximum bending stress of steel pipe? Is there a list of the maximum flexural normal stresses for steel pipes of different materials and diameters?: Wnx - net sectional modulus of steel tubes, also called net sectional resistance moment. If the section is not weakened, it can be found in the steel sheet of the steel structure design manual. If the section is weakened, it can be calculated by the formula according to the sectional dimension according to the formula of the material mechanics.

Q: How do steel pipes handle chemical exposure?: Steel pipes are highly resistant to chemical exposure due to their inherent corrosion-resistant properties. The steel used in pipes is often coated with protective layers or made from stainless steel, which makes them capable of withstanding the effects of various chemicals without deteriorating or reacting. This allows steel pipes to handle chemical exposure effectively and maintain their structural integrity over time.

Q: How are steel pipes measured?: Steel pipes are typically measured by their outer diameter (OD) and wall thickness. The OD is measured using a caliper or tape measure, while the wall thickness is determined using a specialized instrument called a micrometer. These measurements are crucial in determining the size and strength of steel pipes for various applications.

Q: How are steel pipes used in the oil and gas industry?: Steel pipes are widely used in the oil and gas industry for various purposes. They are primarily used for transporting oil and gas from production sites to refineries and distribution centers. These pipes are known for their strength, durability, and resistance to corrosion, making them ideal for handling the high-pressure and corrosive nature of oil and gas fluids. Steel pipes are also used in drilling operations as casing and tubing to maintain the integrity of the wellbore and prevent any leakage. Additionally, steel pipes are utilized in the construction of oil and gas infrastructure such as pipelines, storage tanks, and offshore platforms, ensuring the safe and efficient transportation and storage of oil and gas resources.

Q: What is the role of steel pipes in the transportation of water?: Steel pipes are of utmost importance in the transportation of water due to their durability and strength. They find extensive use in diverse water supply systems, including municipal water distribution networks, irrigation systems, and industrial water transportation. One of the primary benefits of steel pipes lies in their capacity to endure high pressure and deliver water reliably over long distances. The strength of steel enables the construction of pipelines with larger diameters, facilitating the efficient movement of substantial water volumes. Additionally, steel pipes exhibit remarkable resistance to corrosion, a critical characteristic when conveying water that may contain different minerals, chemicals, or contaminants. The corrosion-resistant properties of steel pipes ensure that the water quality remains uncompromised throughout the transportation process. Furthermore, steel pipes offer exceptional structural integrity, rendering them suitable for both underground and above-ground installations. They can withstand extreme weather conditions, seismic activity, and heavy loads, thereby ensuring the longevity and dependability of the water transportation system. Moreover, steel pipes are easy to install and maintain, apart from being robust and durable. They can be seamlessly welded together, resulting in a pipeline with minimal leakage points. Regular inspections and maintenance help identify potential issues or damages, guaranteeing an uninterrupted flow of water. In conclusion, steel pipes play a critical role in water transportation, serving as a strong and reliable conduit. Their ability to withstand high pressure, resist corrosion, and maintain water quality make them an ideal choice for various water supply systems, contributing to the efficient and sustainable distribution of water resources.

Q: How are steel pipes used in the manufacturing of machinery?: Steel pipes are commonly used in the manufacturing of machinery for various purposes such as conveying fluids, gases, or solids, and providing structural support. They are used to transport materials within the machinery, including coolant, lubricants, and gases. Steel pipes also play a crucial role in creating the framework or structure of machinery, providing stability and strength. Additionally, they are used for creating pneumatic systems, hydraulic systems, and exhaust systems in machinery.

Q: What kind of argon arc welding wire is used for 16Mn steel pipe?: 16Mn steel weldability is very good, general use TIG with J50 welding wire, hand arc welding with J506, J507 and other welding rod

Q: What are the common maintenance practices for steel pipes?: Common maintenance practices for steel pipes include regular inspections, cleaning, and corrosion prevention. Regular inspections are crucial to identify any signs of damage or wear. This can involve visual inspections, as well as non-destructive testing methods such as ultrasonic testing or magnetic particle inspection. Inspections should be carried out on a scheduled basis to ensure any issues are detected early on and can be addressed promptly. Cleaning is another important maintenance practice for steel pipes. This involves removing any dirt, debris, or scale that may accumulate both on the inside and outside of the pipes. Regular cleaning helps to prevent blockages, improve flow efficiency, and reduce the risk of corrosion. Corrosion prevention is a key aspect of maintaining steel pipes. Various methods can be employed to protect the pipes from corrosion, such as applying protective coatings, using cathodic protection systems, or implementing corrosion inhibitors. These measures help to extend the lifespan of the pipes and ensure their structural integrity over time. Other maintenance practices may include repairing or replacing damaged sections of the pipes, maintaining proper insulation to prevent heat loss or gain, and monitoring the pipes for any signs of leakage or pressure drops. Overall, regular inspections, cleaning, and corrosion prevention are essential maintenance practices for steel pipes. By implementing these practices, the lifespan of the pipes can be prolonged, and potential issues can be identified and addressed before they cause significant damage or disruptions.

Q: Can steel pipes be bent or shaped to meet specific requirements?: Yes, steel pipes can be bent or shaped to meet specific requirements through various techniques such as hot bending, cold bending, or using specialized machinery like pipe benders.

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