• Steel pipe A335P9 System 1
Steel pipe A335P9

Steel pipe A335P9

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China Main Port
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TT OR LC
Min Order Qty:
-
Supply Capability:
200T m.t./month

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A335P9 Steel pipe  The standing stock of specifications

A335P9 Steel pipe  70*4.5-5-6-7-8-9-10-12-15-16
A335P9 Steel pipe  245*8-10-14-17-20 -22-30-40

P5  C≤0.15       Mn 0.3-0.6   P ≤0.25    S≤0.25

   Si  0.25-1.0  Cr  8-10     Mo 0.9-1.1

Alloy pipe is a steel pipe according to the production materials (i.e. material) to define, just as its name implies is made of alloy steel seamless pipe; and is in accordance with the production process (seamed seamless) to define, seamed pipe seamless pipe is different from, including straight seam welded pipe and spiral tube.

Manufacturing process

1 hot-rolled (extrusion seamless pipe): billet, heating, perforation, three roll cross rolling, rolling or extrusion, tube off, sizing pipe (or reducing), cooling, straightening, water pressure test (or testing), marking, storage

2 cold drawing (rolling) seamless steel pipe: billet, heating, perforation, heading, annealing, pickling, oiling round tube (copper) and multi pass drawing (Leng Zha), the blank pipe, heat treatment, straightening, water pressure test (testing), marking, storage

[(diameter - thickness) * wall thickness of]*0.02466=kg/ meters (per metre weight)

Alloy pipe use

Alloy pipe for low and medium pressure boiler (work pressure is generally not more than 5.88Mpa, the operating temperature at 450 DEG C) of the heating surface tube; used for high pressure boiler (work pressure is generally above 9.8Mpa, operate at a temperature of 450 DEG to 650 DEG C between) the heating surface tubes, economizer, superheater, reheater, petrochemical industry uses the tube and so on.

Q: How do steel pipes compare to other materials, such as PVC or copper?
Steel pipes are generally more durable and have a higher resistance to heat, pressure, and corrosion compared to PVC or copper pipes. They are commonly used for applications that require strength and longevity, such as in industrial settings or for transporting high-pressure fluids. However, steel pipes can be more expensive and heavier than PVC or copper, making them less suitable for certain residential or lightweight applications. Ultimately, the choice of material depends on the specific requirements and budget of the project.
Q: How are steel pipes used in the agricultural irrigation systems?
Steel pipes are commonly used in agricultural irrigation systems to transport water from a water source, such as a well or reservoir, to the fields. They are durable and can withstand high pressure, making them suitable for long-distance water transportation. Steel pipes are also resistant to corrosion and can withstand various weather conditions, ensuring reliable and efficient water distribution for crop irrigation.
Q: How to make the magnetic steel, can be like a magnet?
Of course, not all materials can be magnetized, austenitic stainless steel will not do.
Q: D108*4 what does "D108" mean by seamless steel tubes? What does "*4" mean?
D108: refers to the outer diameter of 108mm;4: refers to the wall thickness of 4mm.
Q: What are the standard specifications for steel pipes?
The standard specifications for steel pipes vary depending on the intended use and industry requirements. However, some common standard specifications include the pipe's size, wall thickness, material composition (such as carbon steel or stainless steel), and pressure ratings. Other specifications may include the pipe's shape, length, and surface finish. It is essential to consult relevant standards organizations, such as ASTM or ASME, to determine the specific standard specifications for steel pipes in a given application.
Q: How are steel pipes used in the manufacturing of oil refineries?
Steel pipes are used extensively in oil refineries for various purposes. They are primarily used for transporting crude oil, refined petroleum products, and various chemicals within the refineries. These pipes are also crucial for the distribution of water, steam, and other fluids required for the refining processes. Additionally, steel pipes are used in the construction of various equipment and structures in oil refineries, including storage tanks, heat exchangers, and process units. Overall, steel pipes play a vital role in ensuring the safe and efficient operation of oil refineries.
Q: Are steel pipes suitable for fire protection systems?
Yes, steel pipes are suitable for fire protection systems. They are highly durable and have excellent resistance to heat and fire. Steel pipes also have superior strength, making them suitable for carrying water or other fire suppressants at high pressure. Additionally, steel pipes have a long lifespan and are able to withstand different environmental conditions, making them a reliable choice for fire protection systems.
Q: What are the different types of coatings used for external protection of steel pipes?
There are several types of coatings commonly used for the external protection of steel pipes, including fusion bonded epoxy (FBE) coatings, three-layer polyethylene (3LPE) coatings, three-layer polypropylene (3LPP) coatings, and coal tar enamel (CTE) coatings. Each of these coatings provide different levels of corrosion resistance and durability, depending on the specific requirements of the project or application.
Q: Can steel pipes be used in marine environments?
Yes, steel pipes can be used in marine environments. Steel is a commonly used material in marine structures due to its strength, durability, and resistance to corrosion. However, it is important to use the appropriate grade of steel and apply protective coatings to enhance its resistance to seawater corrosion. Regular maintenance and inspections are also necessary to ensure the longevity and performance of steel pipes in marine environments.
Q: Can steel pipes be used in the automotive industry?
Yes, steel pipes can be used in the automotive industry. Steel pipes are commonly used in the automotive industry for various applications such as exhaust systems, fuel lines, and structural components due to their high strength, durability, and resistance to corrosion.

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