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: What is the difference between nominal and actual pipe size?: The nominal pipe size refers to the approximate size of a pipe based on its interior diameter, while the actual pipe size refers to the precise measurement of the interior diameter.

Q: How much is 4 inches steel tube MM?: 1 inches =25.4 mm;4 inches =101.6 mm;The specification of steel pipe is usually nominal size;

Q: What are the factors that affect the pressure rating of steel pipes?: There are several factors that can affect the pressure rating of steel pipes. 1. Material strength: The strength of the steel used in the pipe construction plays a crucial role in determining its pressure rating. Higher strength steel can withstand higher pressure levels, whereas weaker grades of steel may have lower pressure ratings. 2. Wall thickness: The thickness of the pipe wall directly impacts its pressure rating. Thicker walls can handle higher pressure levels as they provide more resistance against the internal forces exerted by the fluid or gas flowing through the pipe. 3. Pipe diameter: The diameter of the steel pipe also influences its pressure rating. Generally, larger pipes have higher pressure ratings as they have a larger cross-sectional area to distribute the internal pressure forces. 4. Temperature: Elevated temperatures can significantly affect the pressure rating of steel pipes. High temperatures can weaken the steel material, reducing its overall strength and, consequently, its pressure rating. Therefore, it is important to consider the maximum operating temperature when determining the pressure rating of steel pipes. 5. Corrosion resistance: Corrosion can weaken the pipe material over time, leading to a decrease in its pressure rating. Various factors such as the type of fluid being transported, pH levels, and environmental conditions can impact the corrosion resistance of steel pipes. Utilizing corrosion-resistant coatings or selecting stainless steel pipes can help mitigate this factor. 6. Manufacturing standards: Compliance with recognized industry standards and specifications is crucial in determining the pressure rating of steel pipes. These standards ensure that the pipes are manufactured using proper techniques and materials, providing reliable and accurate pressure ratings. 7. External loads: External loads or forces acting on the pipes, such as soil settlement, traffic loads, or installation practices, can affect their pressure rating. Proper design and installation techniques, including adequate support and protection, are essential in ensuring the pipes can withstand these external forces without compromising their pressure rating. It is important to consider all these factors and consult relevant industry standards and guidelines to determine the appropriate pressure rating for steel pipes in different applications.

Q: How are steel pipes used in the pulp and paper industry?: Steel pipes are widely used in the pulp and paper industry for various applications. They are primarily used for conveying corrosive chemicals, hot water, steam, and other fluids throughout the production process. Steel pipes provide high strength, durability, and resistance to corrosion, which is crucial in an industry where harsh chemicals are involved. They are used in the transportation of pulp, bleaching agents, and various liquids within the production facilities, ensuring efficient and reliable operations in the pulp and paper industry.

Q: What is the role of steel pipes in HVAC systems?: Steel pipes are essential components in HVAC systems as they are used to transport hot or cold water, steam, and air throughout the system. They provide a reliable and durable conduit for the distribution of heating, ventilation, and air conditioning, ensuring efficient and effective operation of the system.

Q: What is the bending strength of steel pipes?: The bending strength of steel pipes can vary depending on factors such as the grade and thickness of the steel, as well as the specific manufacturing process. However, in general, steel pipes are known for their high bending strength due to the inherent strength and durability of the material.

Q: How are steel pipes protected against external mechanical damage?: Steel pipes are often protected against external mechanical damage through a variety of methods such as applying corrosion-resistant coatings, using protective sleeves or wraps, and implementing casing or encasement systems. These measures help to safeguard the pipes from potential physical harm caused by external factors like impact, abrasion, or heavy loads, thus ensuring their integrity and longevity.

Q: Can steel pipes be used for the construction of tunnels?: Yes, steel pipes can be used for the construction of tunnels. Steel pipes are often used as structural elements for tunnel construction due to their strength, durability, and resistance to corrosion. They can be used for various purposes such as tunnel lining, ventilation systems, and water drainage. Steel pipes offer the advantage of being able to withstand high loads and pressures, making them suitable for tunnel construction in different geological conditions.

Q: Are steel pipes suitable for use in nuclear power plants?: Yes, steel pipes are suitable for use in nuclear power plants. They are commonly used in various systems such as cooling, steam, and reactor coolant systems due to their high strength, durability, and resistance to corrosion. Additionally, steel pipes can withstand the high pressure and temperature conditions present in nuclear power plants, making them a reliable choice for this critical infrastructure.

Q: How are steel pipes used in the construction of power plants?: Steel pipes are commonly used in the construction of power plants for various purposes such as transporting fluids, gases, and steam, as well as for structural support. They are used to create a network of pipelines that carry coolant water, fuel, and other necessary fluids to different areas of the plant. Additionally, steel pipes are used for steam generation, connecting boilers to turbines and condensers, ensuring efficient energy production. The durability, strength, and high-temperature resistance of steel pipes make them an ideal choice for the demanding conditions in power plants.

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