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 steel pipes and PPR pipes?: Steel pipes are made of steel and are primarily used for transporting liquids and gases in industries such as oil, gas, and construction. They are durable, resistant to high temperatures and pressure, and have a long lifespan. On the other hand, PPR (polypropylene random copolymer) pipes are made of plastic and are commonly used for plumbing systems in residential and commercial buildings. PPR pipes are lightweight, easy to install, corrosion-resistant, and have good thermal insulation properties. They are more suitable for carrying water and other non-corrosive fluids.

Q: What is the typical length of a steel pipe?: The typical length of a steel pipe can vary depending on its purpose and application. However, standard lengths for steel pipes commonly range from 18 feet to 40 feet.

Q: What are the different types of steel pipe connections?: There are several types of steel pipe connections, including threaded connections, welded connections, flanged connections, grooved connections, and compression connections.

Q: Can steel pipes be used for conveying sewage sludge?: Yes, steel pipes can be used for conveying sewage sludge. Steel pipes are commonly used in various industrial applications, including the transportation of sewage sludge. They are strong, durable, and resistant to corrosion, making them suitable for handling the potentially corrosive nature of sewage sludge.

Q: What is the density of steel pipes?: The density of steel pipes fluctuates based on the particular grade and composition of the steel employed. On the whole, steel pipes generally possess a density of approximately 7.8 grams per cubic centimeter (g/cm³) or 7800 kilograms per cubic meter (kg/m³). It should be emphasized that this figure may undergo slight variations contingent upon factors such as the manufacturing technique and the specific alloy integrated into the steel.

Q: Are steel pipes suitable for underground installations in areas with high moisture content?: Steel pipes are generally suitable for underground installations in areas with high moisture content. However, there are certain factors to consider when using steel pipes in such conditions. Corrosion is a major concern when steel pipes are exposed to moisture for extended periods. To mitigate this risk, it is important to use steel pipes that are specifically designed for underground installations and are coated with protective materials such as epoxy or polyethylene. These coatings act as a barrier between the steel and the surrounding moisture, preventing corrosion and extending the lifespan of the pipes. Additionally, proper installation techniques, including adequate pipe bedding and backfilling, should be followed to ensure the pipes are properly supported and protected from external forces. Regular inspection and maintenance are also recommended to identify any signs of corrosion or damage and address them promptly. Overall, with the right precautions and maintenance, steel pipes can be a suitable choice for underground installations in areas with high moisture content.

Q: What are the different methods of pipe repair for steel pipes?: When it comes to repairing steel pipes, there are several methods available that depend on the severity and location of the damage. Below, you will find a list of the most common methods used: 1. Welding: This method is frequently employed for fixing steel pipes, particularly when the damage is confined to a specific area. To execute this repair, the damaged portion of the pipe is removed and replaced with a new piece that is welded securely. Afterwards, the weld is thoroughly inspected to verify its strength and reliability. 2. Pipe wrapping: This approach entails wrapping a layer of fiberglass or epoxy tightly around the damaged section of the pipe. This wrap provides structural reinforcement and effectively prevents further leakage or corrosion. 3. Pipe lining: This technique involves inserting a flexible liner into the damaged pipe. The liner is typically composed of materials such as epoxy, PVC, or cured-in-place pipe (CIPP). Once inserted, the liner is either inflated or heated to conform to the shape of the pipe, creating a new inner surface that is resistant to corrosion and leakage. 4. Slip lining: Similar to pipe lining, slip lining involves placing a smaller diameter pipe inside the damaged one. The smaller pipe acts as a protective sleeve, reinforcing the structure and preventing further deterioration of the original pipe. 5. Pipe bursting: This method is utilized when the damage to the pipe is extensive. A new pipe is pulled through the damaged one using a hydraulic or pneumatic system. As the new pipe is pulled through, it bursts the old pipe, resulting in a larger diameter pipe with minimal disturbance to the surrounding area. 6. Clamp or sleeve repair: In cases where the damage is small and localized, a clamp or sleeve can be applied to temporarily or permanently fix the issue. The clamp or sleeve is placed securely over the damaged section to prevent leakage. It is important to keep in mind that the optimal method for repairing steel pipes depends on factors like the extent of damage, accessibility, cost, and structural requirements. It is recommended to consult with a professional pipe repair specialist or engineer to determine the most suitable method for your specific situation.

Q: What are the applications of galvanized steel pipes?: Galvanized steel pipes have numerous applications in various industries. They are commonly used for plumbing and water supply systems due to their corrosion resistance. Additionally, they are used in gas transmission, oil refineries, and industrial plants where resistance to harsh chemicals and high temperatures is crucial. Galvanized steel pipes are also employed in construction for structural support and scaffolding, as well as for fencing and handrails. Overall, their durability, strength, and cost-effectiveness make galvanized steel pipes suitable for a wide range of applications.

Q: What are the different types of steel pipe valves?: There are several types of steel pipe valves, including gate valves, globe valves, ball valves, check valves, and butterfly valves. Each type of valve serves a specific purpose and has its own unique features and applications in various industries.

Q: Can steel pipes be used for air conditioning systems?: Yes, steel pipes can be used for air conditioning systems. Steel pipes are commonly used in HVAC (Heating, Ventilation, and Air Conditioning) systems as they are durable, can withstand high pressures, and are resistant to corrosion.

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