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

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

America Standard Q235 A500 150g Hot Dipped or Galvanized Pipe

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 protected against external impact or mechanical damage?: Steel pipes are typically protected against external impact or mechanical damage through the use of various methods such as applying protective coatings, installing corrosion-resistant materials, using concrete encasement, or utilizing protective shields or guards.

Q:What are the different types of fittings used with steel pipes?: Steel pipes are commonly paired with various fittings that serve to connect, control, or alter the flow direction in a piping system. Some of these fittings include: 1. Elbow fittings: Designed to modify the flow direction, elbow fittings are available in different angles, such as 45 or 90 degrees. They are frequently utilized to navigate obstacles or introduce bends in the pipe. 2. Tee fittings: Tee fittings are implemented to create a branch or division in the piping system. With three openings, one perpendicular to the other two, they enable the connection of two pipes at a 90-degree angle. 3. Coupling fittings: Used to join two pipes of the same size, coupling fittings are typically threaded and can be easily fastened or removed with a wrench. They are commonly employed when pipes need to be connected or repaired. 4. Reducer fittings: Reducers are employed to connect pipes of varying sizes. They consist of one end with a larger diameter and another end with a smaller diameter. Reducers are often employed to transition between pipe sizes or adapt to different equipment or fittings. 5. Flange fittings: Flanges are utilized to establish a secure and leak-proof connection between pipes, valves, or other equipment. They consist of a flat, circular plate with holes to accommodate bolts or screws for fastening the flange to the pipe. Flange fittings find frequent use in applications that necessitate frequent disassembly and reassembly. 6. Union fittings: Union fittings are employed to join two pipes in a manner that facilitates easy disconnection. They comprise three parts: a nut, a female end, and a male end. Union fittings are commonly used in scenarios that require periodic maintenance or repairs. 7. Cap fittings: Cap fittings are employed to seal the end of a pipe. Usually threaded, they can be effortlessly screwed onto the pipe's end. Cap fittings are commonly used in instances where temporary closure or protection of pipes is necessary. These examples represent some of the various fittings utilized with steel pipes. The specific fitting required depends on factors such as the application, pipe size and material, as well as the desired functionality of the piping system.

Q:How do you join steel pipes together?: Steel pipes can be joined together using various methods, including welding, threading, and using mechanical couplings.

Q:What are the different manufacturing standards for steel pipes?: There are several manufacturing standards for steel pipes that are widely recognized and implemented in the industry. These standards ensure that the steel pipes are produced to meet specific requirements and quality standards. Some of the most common manufacturing standards for steel pipes include: 1. American Society for Testing and Materials (ASTM): ASTM standards are widely used in the United States and cover a wide range of steel pipe specifications. These standards include specifications for seamless and welded steel pipes, as well as various grades and dimensions. 2. International Organization for Standardization (ISO): ISO standards are globally recognized and provide guidelines for the production of steel pipes. ISO standards cover areas such as dimensions, materials, testing, and quality control. 3. European Norm (EN): EN standards are applicable in Europe and provide specifications for various types of steel pipes. These standards cover aspects such as dimensions, materials, manufacturing processes, and testing. 4. Japanese Industrial Standards (JIS): JIS standards are widely used in Japan and have gained international recognition. These standards cover dimensions, materials, and testing methods for steel pipes. 5. British Standards (BS): BS standards are commonly used in the United Kingdom and cover a range of steel pipe specifications. These standards include requirements for dimensions, materials, and testing procedures. 6. American Petroleum Institute (API): API standards are specifically developed for the oil and gas industry and cover various aspects of steel pipe manufacturing. These standards include specifications for seamless and welded pipes used in oil and gas exploration, production, and transportation. It is important for manufacturers, buyers, and users of steel pipes to be aware of these standards to ensure the quality, compatibility, and reliability of the pipes. Compliance with these standards helps to ensure that the steel pipes meet the necessary requirements and are suitable for their intended applications.

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 specialized tools like ultrasonic gauges or micrometers. These measurements are crucial for determining the pipe's size, strength, and suitability for various applications.

Q:What is the theoretical weight per square meter of the steel pipe diameter of the outer frame and the thickness of the tube wall 3mm 48mm?: Dimensions of ordinary steel tubes (taken from GB/T 17395-1998)The theory of weight / (kg/m) | wall thickness (2.9 3.0mm: 3.33)

Q:Can steel pipes be used for underground gas storage?: Certainly! Underground gas storage can indeed utilize steel pipes. Steel pipes are frequently employed in the transportation and storage of diverse gas varieties, such as natural gas, owing to their robustness, longevity, and ability to resist corrosion. These pipes can endure substantial pressures and can be tailored to meet the specific prerequisites of subterranean gas storage installations. Furthermore, materials can be applied to the surfaces of steel pipes, either as a coating or lining, to bolster their resistance to corrosion and avert any possible leaks. Nevertheless, it is crucial to ensure that the correct safety protocols and regulations are adhered to during the construction and operation of underground gas storage facilities to prevent any potential perils or hazards.

Q:What's the difference between No. 20 steel pipe and 27SiMn Steel Pipe?: Cold plastic deformation and for bending, rolling, bending and hammer arch processing, arc welding and contact welding welding performance is good, when the thickness is small, prone to strict requirement of shape crack or complex shape parts. The cold or normalizing condition of cutting is better than that of annealing. It is generally used to make the material with little force and high toughness.

Q:What are the different methods of wrapping steel pipes for corrosion protection?: Corrosion protection for steel pipes can be achieved through various methods, tailored to specific applications and environmental conditions. Some commonly used techniques include: 1. Tape Wrapping: Steel pipes are wrapped with corrosion-resistant tape, like polyethylene or polypropylene tape, to create a barrier between the pipe and corrosive elements. This reduces the risk of direct contact and subsequent corrosion. 2. Inner Wrapping: A protective coating or lining is applied to the inside surface of the steel pipe. This method is commonly employed for pipes transporting fluids or gases, offering an additional layer of protection against internal corrosion. 3. External Coating: A widely utilized technique involves applying a protective coating to the outer surface of the steel pipe. This coating, which can consist of materials like epoxy, polyethylene, or polyurethane, acts as a barrier against corrosive elements, extending the pipe's lifespan. 4. Cathodic Protection: An electrochemical method is utilized to safeguard steel pipes from corrosion. By connecting the steel pipe to a sacrificial anode, such as zinc or magnesium, the anode corrodes instead of the pipe. This diverts corrosive currents away from the pipe, preventing its corrosion. 5. Heat Shrink Sleeve: Heat shrink sleeves are commonly employed for corrosion protection in underground or submerged scenarios. These sleeves, made of heat-activated material, shrink when heated to form a tight seal around the pipe. By preventing direct contact with moisture and corrosive elements, the sleeve effectively acts as a barrier. 6. Fusion Bonded Epoxy (FBE) Coating: FBE coating entails applying a thermosetting powder coating to the steel pipe's surface, which then fuses to create a protective layer. This coating exhibits strong adhesion and corrosion resistance, making it a popular choice for various steel pipe applications. Choosing the appropriate corrosion protection method for steel pipes depends on factors like the environment, specific corrosive elements, intended use, and other requirements. Seeking professional advice and consultation may be necessary to determine the most suitable technique for a particular situation.

Q:What does "SC50" steel pipe mean in civil engineering?: In the production of T-shape welded steel pipe, the wrong edges happen frequently, and the influence factors are many. In production practice, steel pipe degradation is often caused by dry, wrong and side errors. Therefore, it is necessary to analyze the causes and preventive measures of spiral steel tubes.

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