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

Seamless tube 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:What is the difference between carbon steel and stainless steel pipes?: The main difference between carbon steel and stainless steel pipes lies in their composition and corrosion resistance. Carbon steel pipes are primarily made of iron and carbon, while stainless steel pipes contain iron, carbon, and a minimum of 10.5% chromium. This chromium content in stainless steel provides excellent corrosion resistance, making it more suitable for applications where pipes may come in contact with moisture or corrosive substances. Carbon steel pipes, on the other hand, are more cost-effective and commonly used in applications where corrosion resistance is not a primary requirement.

Q:How are steel pipes used in the manufacturing of solar power systems?: Steel pipes are commonly used in the manufacturing of solar power systems for various purposes. They are used as structural supports for solar panels, providing stability and durability. Additionally, steel pipes are often utilized for the transportation of fluids such as water or heat transfer fluids, enabling the efficient circulation of these substances within the solar power system.

Q:How are steel pipes used in wastewater treatment plants?: Steel pipes are used in wastewater treatment plants for various purposes such as transporting wastewater, carrying chemicals and additives, and supporting the infrastructure.

Q:How do steel pipes handle extreme temperatures?: Steel pipes are highly durable and can handle extreme temperatures due to their inherent strength and heat resistance. They have a high melting point, allowing them to withstand both very high and very low temperatures without compromising their structural integrity. Additionally, steel pipes have excellent thermal conductivity, which enables them to efficiently transfer heat and prevent damage caused by extreme temperature fluctuations.

Q:What quota should be installed for heating seamless steel pipe?: Should be in low carbon steel welding installation set industrial pipeline engineering quota, material to input the name and type of seamless steel pipe specifications and price; according to the description of the contents of related items can be set.

Q:What is the difference between hot dip galvanized steel pipe and galvanized steel pipe?: Galvanized steel pipe is commonly known as "cold plated tube", using electroplating process, only galvanized steel pipe in the outer wall, the wall of the pipe is not galvanizedHot dip galvanized steel pipe adopts hot-dip galvanizing process, and the inner and outer walls of the steel pipe have zinc coating.

Q:What are the different methods of pipe protection for steel pipes?: There are several different methods of pipe protection for steel pipes, each serving a unique purpose and providing varying levels of protection. Some of the common methods include: 1. Coatings: Coatings are applied on the external surface of steel pipes to protect them from corrosion and other environmental factors. Coating materials can include various types of paints, epoxies, or polymers. These coatings create a barrier between the pipe surface and the surrounding environment, preventing the steel from coming into contact with corrosive elements. 2. Wrapping: Wrapping involves using a protective material, such as tape or shrink wrap, to cover the steel pipe. This method provides a physical barrier against moisture, chemicals, and other corrosive substances. Wrapping is often used in combination with coatings to enhance the overall protection. 3. Cathodic Protection: Cathodic protection is an electrochemical method used to protect steel pipes from corrosion. It involves connecting the steel pipe to a sacrificial anode, typically made of zinc or magnesium. The anode corrodes instead of the pipe, which helps to prevent the steel from deteriorating. This method is commonly used for buried or submerged pipelines. 4. Thermal Insulation: Thermal insulation is used to protect steel pipes from extreme temperatures. Insulating materials, such as foam or mineral wool, are applied around the pipe to minimize heat transfer. This method is particularly important for pipes carrying hot fluids or exposed to extreme weather conditions. 5. Vibration Dampening: Vibration can cause stress and fatigue on steel pipes, leading to potential damage. To protect against vibrations, various techniques can be employed, such as using vibration damping pads or installing supports and clamps. These methods help to absorb and dissipate the energy generated by vibrations, reducing the risk of pipe failure. 6. Concrete Coating: For pipelines installed underwater or in highly corrosive environments, concrete coating is often used. A layer of concrete or a cement-based mortar is applied to the steel pipe, providing both mechanical protection and resistance to corrosion. It is important to select the appropriate method of pipe protection based on the specific application, environmental conditions, and desired level of protection. Regular inspection and maintenance are also crucial to ensure the long-term integrity of steel pipes.

Q:What are the different types of steel pipe coatings for nuclear power plants?: There are several types of steel pipe coatings used in nuclear power plants, including epoxy coatings, fusion-bonded epoxy (FBE) coatings, and polyethylene (PE) coatings. These coatings provide corrosion and chemical resistance to the steel pipes, ensuring their longevity and safety in the demanding environment of a nuclear power plant.

Q:How are steel pipes used in the infrastructure development?: Steel pipes are widely used in infrastructure development as they provide strength, durability, and versatility for various applications. They are commonly used in the construction of bridges, highways, and buildings as structural elements. Steel pipes are also used in water and sewage systems, as they have excellent corrosion resistance and can withstand high pressure. Additionally, steel pipes are used for transporting oil, gas, and other fluids, making them crucial for the energy industry. Overall, steel pipes play a vital role in the development and maintenance of infrastructure, ensuring its stability and functionality.

Q:What is the hardness of steel pipes?: The specific grade and manufacturing process can cause the hardness of steel pipes to vary. Generally, alloys are used to make steel pipes, which offer a combination of strength and toughness. To determine the hardness of steel pipes, different methods like Rockwell or Brinell hardness tests can be carried out. These tests gauge the steel's resistance to indentation or penetration using a standardized indenter. The hardness of steel pipes is usually represented as a numerical value on a scale, like the Rockwell hardness scale (e.g., HRC or HRB) or the Brinell hardness scale (e.g., HB). The hardness of steel pipes is significant as it indicates their capacity to endure physical stresses, such as pressure, impact, or wear, in various applications such as construction, oil and gas transportation, and manufacturing.

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