Seamless pipe ASTM A53/ASTM A 106/API 5L grade B

Seamless pipe ASTM A53/ASTM A 106/API 5L grade B

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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 water supply systems?: Steel pipes are commonly used in the construction of water supply systems due to their durability and strength. They are often used to transport water from the source to treatment plants, as well as for distribution to homes and businesses. Steel pipes are resistant to corrosion, which ensures the quality of the water and the longevity of the system. Additionally, their high pressure-bearing capacity makes them suitable for water supply networks that require efficient and reliable transportation of water.

Q:How are steel pipes sized and classified?: The primary criteria for sizing and categorizing steel pipes are their outer diameter (OD) and wall thickness. This standardization ensures compatibility and ease of use across different applications. The common approach to sizing steel pipes is through nominal pipe size (NPS), a North American standard that refers to a pipe's OD. NPS sizes span from 1/8 inch to 36 inches, with each size corresponding to a specific OD. For instance, a 1/2-inch NPS pipe has an OD of 0.84 inches, while a 12-inch NPS pipe has an OD of 12.75 inches. It's important to note that the pipe's OD may not precisely match its actual measurement due to historical dimensions. Moreover, steel pipes are categorized into various schedules, which indicate the wall thickness. The most common schedules are SCH 5, SCH 10, SCH 40, SCH 80, and SCH 160, with higher numbers representing thicker walls. These schedules are standardized and aid in selecting the appropriate pipe for specific applications. Additionally, steel pipes can be further classified based on their end connections. The typical types include threaded, plain-end, and socket-weld connections. Threaded pipes possess screw threads on both ends, facilitating easy assembly and disassembly. Plain-end pipes lack threads and are typically joined using welding techniques. Socket-weld pipes have a socket-like end that enables welding with a corresponding fitting. In conclusion, steel pipes undergo sizing and classification based on their outer diameter, wall thickness, and end connections. The nominal pipe size (NPS) denotes the outer diameter, while the schedule number represents the wall thickness. Understanding the sizing and classification of steel pipes is crucial when selecting the appropriate pipe for specific applications in industries like construction, oil and gas, plumbing, and manufacturing.

Q:Are there specifications for scaffold steel pipe with 48mm * 3.2mm?: Previously used steel pipe GB 51*3.0mm, the latest national standard JGJ130-2001 stipulates that the use of steel pipe for construction projects need to be 48*3.5mm specifications, the wall thickness should be 3.5mm square for qualified products.

Q:How are steel pipes used in the construction of underground parking structures?: Steel pipes are commonly used in the construction of underground parking structures for various purposes. They are primarily utilized for the installation of underground drainage systems, including stormwater and wastewater pipes. Steel pipes are also employed for the construction of support columns and beams, providing structural stability to the parking structure. Additionally, steel pipes are used for the installation of fire protection systems, such as sprinkler pipes, ensuring the safety of the underground parking facility.

Q:How are steel pipes classified based on their schedule?: Steel pipes are classified based on their schedule, which refers to the thickness of the pipe wall. The schedule classification is denoted by a number, such as 10, 20, 40, 80, etc., with higher numbers indicating thicker walls.

Q:What are the factors to consider when selecting pipe materials for corrosive environments?: To ensure the longevity and effectiveness of a piping system in corrosive environments, several important factors must be considered. Firstly, the corrosion resistance of the pipe material is crucial. It is essential to select a material highly resistant to corrosion as time can cause significant damage to pipes in corrosive environments. Stainless steel, fiberglass, PVC, and CPVC are materials known for their excellent corrosion resistance. Secondly, the chemical compatibility of the pipe material with the corrosive environment should be assessed. Different materials have varying resistance levels to different chemicals, so it is important to ensure that the chosen material can withstand the specific chemicals present. Consulting chemical compatibility charts and seeking expert advice can aid in selecting the right material. Furthermore, the temperature and pressure requirements within the corrosive environment should be taken into account. Some materials have limitations in terms of temperature and pressure resistance, exceeding which can lead to pipe failure. It is crucial to choose a material that can handle the required temperature and pressure ranges without compromising its structural integrity. The cost of the pipe material and its installation should also be considered. While certain materials may offer high corrosion resistance, they may also be more expensive. Striking a balance between the desired level of corrosion resistance and the available budget is essential. Lastly, the maintenance requirements and overall durability of the pipe material should be evaluated. Some materials may require more frequent inspections, cleaning, or repairs compared to others. Considering the anticipated lifespan of the piping system and the ease of maintenance can help in selecting a material that ensures long-term reliability and cost-effectiveness. In conclusion, when selecting pipe materials for corrosive environments, it is important to consider factors such as corrosion resistance, chemical compatibility, temperature and pressure requirements, cost, and maintenance and durability. By carefully evaluating these factors, one can choose a pipe material that best suits the specific corrosive environment and ensures a reliable and long-lasting piping system.

Q:What is the maximum diameter of steel pipes?: The maximum diameter of steel pipes can vary depending on the specific manufacturing capabilities, but generally, it can range from a few inches to several feet.

Q:Hot galvanized steel pipe for use?: 1, galvanized layer uniformity: steel pipe sample in copper sulfate solution immersion 5 times continuously, must not turn red (copper plated)2, surface quality: galvanized steel pipe surface should be complete galvanized layer, must not have plating on the black spots and bubbles exist, allow little rough surface and local zinc tumor exists.3, galvanized layer weight: according to the requirements of the buyer, galvanized steel pipe can be used for zinc layer weight determination, its average value should be not less than 500g/ square meters, and any sample shall not be less than 480g/ square meters.

Q:What is the difference between seamless and welded steel pipes?: The main difference between seamless and welded steel pipes lies in their manufacturing process. Seamless pipes are made by piercing a solid billet of steel, while welded pipes are formed by rolling steel sheets and then welding them together. This difference in production methods results in varying levels of strength, durability, and cost. Seamless pipes are generally stronger and more reliable, as they have no welded seams that can weaken the pipe. However, they are also more expensive to produce. On the other hand, welded pipes are more cost-effective but may have weaker points at the welded seams. Ultimately, the choice between seamless and welded steel pipes depends on the specific application and requirements of the project.

Q:What are the common uses of stainless steel pipes?: Stainless steel pipes are commonly used in various industries and applications such as plumbing, construction, oil and gas, food processing, pharmaceuticals, and automotive. They are valued for their durability, corrosion resistance, and ability to withstand high temperatures. Stainless steel pipes are utilized for transporting fluids, gases, and chemicals, as well as for structural purposes in buildings and infrastructure.

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