Seamless steel pipe ASTM A106/API 5L/ASTM A53 high quality

Seamless steel pipe ASTM A106/API 5L/ASTM A53 high quality

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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:How are steel pipes used in the construction of biomass power plants?: Steel pipes are commonly used in the construction of biomass power plants for various purposes. They are used to transport and distribute water, steam, and other fluids within the plant, as well as to carry and contain biomass fuel, such as wood chips or agricultural waste. Steel pipes are also used for structural purposes, providing support for equipment and structures within the plant. Additionally, they are used for exhaust systems and ventilation, ensuring the safe release of gases and managing air circulation. Overall, steel pipes play a crucial role in the efficient and reliable operation of biomass power plants.

Q:How do you calculate the buoyancy of submerged steel pipes?: In order to calculate the buoyancy of submerged steel pipes, one must take into account Archimedes' buoyancy principle. According to this principle, the force exerted on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. To calculate the buoyant force, it is necessary to determine the volume of fluid displaced by the submerged steel pipe. This can be done by multiplying the cross-sectional area of the pipe by the length of the submerged portion. Next, it is important to ascertain the density of the fluid in which the steel pipe is submerged. This information can be obtained from the properties of the fluid or by referring to known values. Once the volume and density of the fluid have been determined, the weight of the fluid displaced by the submerged pipe can be calculated using the equation: weight = volume × density × acceleration due to gravity. Finally, the buoyant force can be calculated by multiplying the weight of the displaced fluid by the acceleration due to gravity. This will yield the upward force exerted on the submerged steel pipe by the fluid. When accurately calculating the buoyancy of submerged steel pipes, it is crucial to take into account additional factors, such as the weight of the pipe itself, any attached equipment or coatings, and the specific conditions of the fluid in which it is submerged.

Q:The plastic pipe and steel pipe difference: In fact, including the steel plastic pipe plastic pipe, but on the market all the steel plastic pipe and plastic lining steel pipe is synonymous, lined with plastic pipe is made of galvanized steel pipe internal set of plastic pipe manufacturing process, process using high pressure steam to both adhesion.

Q:What are the applications of stainless steel pipes?: Stainless steel pipes have a wide range of applications due to their excellent properties. They are commonly used in industries such as oil and gas, chemical, pharmaceutical, food processing, and construction. These pipes are resistant to corrosion, heat, and pressure, making them suitable for transporting various fluids and gases. Additionally, they are used in plumbing systems, HVAC systems, structural frameworks, and even in decorative applications like handrails and furniture.

Q:Can steel pipes be used for sewer systems?: Yes, steel pipes can be used for sewer systems. Steel pipes are commonly used for sewer systems due to their durability, strength, and resistance to corrosion. They are able to withstand heavy loads and can be used for both gravity and pressure sewer systems. Additionally, steel pipes provide a long service life, making them a suitable choice for sewer infrastructure.

Q:How can galvanized steel tubes be painted on the surface?: Suitable for galvanized base material (antirust primer), epoxy zinc yellow primer (double component), epoxy ester zinc yellow primer.Pretreatment of galvanized sheet when brushing:1, conditional, you can zinc plating phosphating treatment, or first spray a layer of phosphating primer.2, or smooth zinc plating surface sweeping treatment.3, the galvanized workpiece, galvanized pipe surface with solvent (that is, epoxy zinc yellow primer, thinner) wipe, in order to remove the workpiece crude oil protective layer, and increase cleanliness.4, two-component epoxy zinc yellow primer: in strict accordance with the proportion of paint and curing agent paint, and aging 30 minutes later, modulation suitable construction viscosity, you can spray.One component epoxy ester primer: zinc yellow construction viscosity suitable to construction of modulation, the correct construction method.

Q:How do you protect steel pipes from external damage?: There are several ways to ensure the protection of steel pipes from external damage: 1. Coating: To prevent external damage, it is advisable to apply a protective coating on the surface of the steel pipes. Different coating options such as epoxy, polyethylene, and fusion bonded epoxy (FBE) can be used. These coatings act as a barrier between the pipes and the surrounding environment, safeguarding them from corrosion, abrasion, and other external factors. 2. Cathodic Protection: Another method to protect the steel pipes from corrosion is by implementing cathodic protection. This involves connecting a less noble metal, either through sacrificial anodes or an impressed current, to the pipes. By doing so, the corrosive elements are attracted to the sacrificial metal, sacrificing it instead of the pipes. This process helps increase the pipes' lifespan and shields them from external damage. 3. Wrapping and Taping: To provide an additional layer of protection, it is recommended to wrap the steel pipes with materials like polyethylene or polypropylene tapes. These tapes act as a barrier against moisture, chemicals, and physical impact, ensuring the pipes are shielded from external damage. Additionally, heat shrink sleeves can be utilized to offer insulation and safeguard against corrosion. 4. Underground Installation: Proper installation techniques are crucial for safeguarding steel pipes from external damage. This includes ensuring appropriate trench depth, using suitable backfill materials, and avoiding excessive bending or stress during the installation process. Employing proper bedding and padding techniques also contributes to the pipes' protection against external factors. 5. Regular Inspection and Maintenance: It is essential to conduct periodic inspections and maintenance to detect any signs of external damage early on. This can involve visual inspections, non-destructive testing, or the utilization of advanced technologies such as pipeline integrity management systems. Timely repairs and maintenance help prevent further damage and extend the lifespan of the steel pipes. In conclusion, protecting steel pipes from external damage necessitates a combination of preventative measures, proper installation techniques, and regular maintenance. By implementing these strategies, the integrity of the pipes can be preserved, preventing corrosion, abrasion, impact, and other factors that could compromise their structural integrity.

Q:What are the advantages of using steel pipes in the mining industry?: There are several advantages of using steel pipes in the mining industry. Firstly, steel pipes are extremely durable and can withstand harsh environmental conditions and heavy loads, making them ideal for underground mining operations. Secondly, steel pipes have high tensile strength, which allows for the transportation of large volumes of materials, such as ore or waste, over long distances. Additionally, steel pipes are resistant to corrosion and erosion, ensuring a longer lifespan and reducing maintenance costs. Lastly, steel pipes are relatively easy to install and can be welded together, providing flexibility in designing and constructing mining infrastructure.

Q:How are steel pipes used in the manufacturing of wastewater treatment systems?: Steel pipes are used in the manufacturing of wastewater treatment systems for various purposes such as carrying and transporting wastewater, providing structural support to the system, and facilitating the flow of water and chemicals throughout the treatment process.

Q:Are steel pipes suitable for desalination plants?: Desalination plants can benefit greatly from the use of steel pipes. These pipes possess a variety of advantages that make them an ideal option for such facilities. Firstly, their resistance to corrosion is of utmost importance in desalination plants, where saltwater can be highly corrosive. The fact that steel pipes can withstand such corrosive conditions ensures the durability and longevity of the infrastructure, ultimately reducing maintenance and replacement expenses. Secondly, steel pipes exhibit remarkable strength, enabling them to withstand high-pressure situations commonly encountered in desalination plants. The ability of steel pipes to handle intense water flow without deformation or leakage guarantees the efficient and dependable operation of the desalination process. Moreover, steel pipes boast excellent heat resistance properties, rendering them suitable for desalination plants that engage in heat-intensive procedures like distillation or reverse osmosis. These pipes can endure high temperatures without suffering any structural damage, ensuring the secure and efficient transfer of heated water or steam. Furthermore, steel pipes are readily available and come in a wide range of sizes and specifications, allowing for flexibility in the design and construction of desalination plants. This availability and versatility make steel pipes a cost-effective choice for desalination projects. Overall, due to their resistance to corrosion, high strength, heat resistance, availability, and cost-effectiveness, steel pipes are highly suitable for desalination plants and are extensively used in the industry.

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