Steel pipe A335P9 18-267

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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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: Can steel pipes be used for underground cable conduits?: Yes, steel pipes can be used for underground cable conduits. Steel pipes have high strength and durability, making them suitable for protecting and housing cables underground. They provide excellent protection against external elements and can withstand a wide range of environmental conditions. Additionally, steel pipes offer good resistance to corrosion, ensuring the longevity of the cable conduit system.

Q: Are steel pipes suitable for underground chemical transport?: Steel pipes are generally considered suitable for underground chemical transport due to their high strength and durability. Steel pipes can withstand the pressure and weight of the soil above them, making them resistant to damage or collapse. Additionally, steel pipes are corrosion-resistant, which is crucial when transporting chemicals that may react with or corrode other materials. They are also able to handle a wide range of temperatures, making them suitable for transporting chemicals that may require specific temperature conditions. However, it is important to consider the specific chemical being transported and consult with experts in chemical engineering or pipeline design to ensure that the steel pipes are compatible with the chemical and that any necessary safety measures are in place.

Q: What are the standard specifications for steel pipes?: The standard specifications for steel pipes vary depending on the intended use and industry. However, some common standard specifications for steel pipes include dimensions (such as diameter, wall thickness, and length), material composition (such as chemical and mechanical properties), and specific requirements for different applications (such as pressure ratings or corrosion resistance). These specifications are established by industry organizations like ASTM International, American Society of Mechanical Engineers (ASME), and International Organization for Standardization (ISO) to ensure the quality, safety, and compatibility of steel pipes in various sectors such as construction, oil and gas, plumbing, and manufacturing.

Q: Can steel pipes be used for sewage disposal systems?: Yes, steel pipes can be used for sewage disposal systems. Steel pipes are durable, resistant to corrosion, and have high strength, making them suitable for conveying sewage and wastewater. Additionally, steel pipes can handle high-pressure systems and are often used in industrial and commercial applications for sewage disposal.

Q: Hot galvanized steel pipe for use?: Hot galvanized pipe: in order to improve the corrosion resistance of steel pipe, galvanized steel pipe. Galvanized steel pipe hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, zinc plating cost is low, the surface is not very smooth.The hot-dip galvanized pipe is an alloy layer that causes molten metal to react with the iron matrix, thus combining the substrate with the two coating. Hot dip galvanizing is the first steel pickling, in order to remove iron, steel pipe surface after pickling, cleaning by ammonium chloride or zinc chloride solution or ammonium chloride and zinc chloride aqueous solution tank, and then into the hot dip tank. Hot galvanizing has the advantages of uniform coating, strong adhesion, long service life and so on. A complex physical and chemical reaction is formed between the steel tube matrix and the molten plating solution to form a corrosion resistant structure with a tight zinc - iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, it has strong corrosion resistance.

Q: What are the advantages of using steel pipes?: There are several advantages of using steel pipes. Firstly, steel pipes are extremely durable and have a high resistance to corrosion, making them suitable for various applications in different environments. Secondly, steel pipes have excellent strength and can withstand high pressure, making them ideal for transporting fluids and gases over long distances. Additionally, steel pipes have a smooth interior surface, which allows for efficient flow and minimizes the risk of clogs or blockages. Lastly, steel pipes are versatile and can be easily fabricated and customized to meet specific project requirements.

Q: What are the different standards for steel pipes?: Steel pipes are subject to various standards that guarantee their quality and compatibility in different applications. Some commonly used standards include: 1. ASTM (American Society for Testing and Materials): In the United States, ASTM standards are extensively used to specify different types of steel pipes, such as seamless and welded pipes. These standards cover dimensions, mechanical properties, and general requirements for steel pipes. 2. API (American Petroleum Institute): API standards are specifically tailored for the oil and gas industry. They provide guidelines for manufacturing, testing, and inspecting steel pipes used in oil and gas exploration, production, and transportation. 3. DIN (Deutsches Institut für Normung): DIN standards are widely adopted in Europe and outline specifications for various steel pipe types, including seamless, welded, and cast iron pipes. These standards cover dimensions, materials, and technical delivery conditions for steel pipes used across industries. 4. BS (British Standards): In the United Kingdom, BS standards are widely utilized for steel pipes in construction, engineering, and other sectors. They provide guidelines for dimensions, materials, and manufacturing processes for steel pipes. 5. JIS (Japanese Industrial Standards): JIS standards are extensively used in Japan and define specifications for different types of steel pipes, including seamless, welded, and cast iron pipes. These standards cover dimensions, materials, and technical delivery conditions for steel pipes used in various industries. 6. ISO (International Organization for Standardization): ISO standards are globally recognized and provide specifications for steel pipes used in diverse industries. They cover dimensions, materials, testing, and quality control requirements for steel pipes. It is crucial to note that specific industries and applications may have unique requirements. Therefore, it is essential to refer to the relevant standard for each specific use case. Complying with these standards ensures the safety, reliability, and compatibility of steel pipes in their respective applications.

Q: What are the factors affecting the price of steel pipes?: There are several factors that can affect the price of steel pipes. These factors include: 1. Raw material costs: The price of steel pipes is heavily influenced by the cost of raw materials such as iron ore and coal. Fluctuations in these commodity prices can impact the overall cost of production and subsequently affect the selling price of steel pipes. 2. Supply and demand: Supply and demand dynamics play a significant role in determining the price of steel pipes. When there is a high demand for steel pipes and a limited supply, the prices tend to increase. Conversely, when there is an oversupply of steel pipes and low demand, prices may decrease. 3. Production and manufacturing costs: The cost of producing and manufacturing steel pipes can have a direct impact on their price. Expenses related to labor, energy, transportation, and equipment maintenance can all contribute to the overall cost of production and, in turn, affect the selling price. 4. Market competition: The level of competition in the steel pipe industry can also influence the price of steel pipes. If there are many manufacturers and suppliers competing for market share, prices may be more competitive. On the other hand, if there are fewer competitors, prices may be higher due to limited options. 5. Government policies and regulations: Government policies and regulations can have a significant impact on the price of steel pipes. Import tariffs, trade restrictions, and environmental regulations can all affect the cost of production and subsequently influence prices. 6. Currency exchange rates: Steel pipe prices can also be influenced by currency exchange rates. Fluctuations in exchange rates between countries can impact the cost of importing or exporting steel pipes, which in turn can affect their selling price. 7. Global economic conditions: The overall state of the global economy can impact the price of steel pipes. During periods of economic growth, demand for steel pipes may be higher, leading to increased prices. Conversely, during economic downturns, demand may decrease, resulting in lower prices. It is important to note that these factors can interact with one another and fluctuate over time, making the pricing of steel pipes a complex and dynamic process.

Q: How can seamless steel tubes be produced?: Tube mill, round tube billet, heating, perforation, three roll cross rolling, rolling or extrusion, removal of pipe, sizing (or reducing diameter), cooling, straightening, water pressure test (or flaw detection), marking, storage, cold rolling and hot rolling. Generally cold rolling, because of high accuracy.

Q: How do you calculate the weight of a steel pipe?: In order to determine the weight of a steel pipe, one must possess knowledge of the pipe's dimensions, specifically the outer diameter (OD), wall thickness, and length. Initially, one must ascertain the cross-sectional area of the pipe. This can be accomplished by subtracting the inner diameter (ID) from the outer diameter (OD) and dividing the outcome by 2 to acquire the radius. Subsequently, the formula A = πr^2 can be employed to compute the area. Following this, it is necessary to multiply the cross-sectional area by the length of the pipe to obtain the volume. The formula for volume is V = A * L, where A denotes the cross-sectional area and L signifies the length. Lastly, to determine the weight of the steel pipe, one must multiply the volume by the density of steel. The density of steel generally falls around 7850 kilograms per cubic meter (kg/m^3) or 0.2836 pounds per cubic inch (lb/in^3). The formula for weight is W = V * ρ, where V represents the volume and ρ denotes the density of steel. It is crucial to note that if one is employing different units, a conversion is imperative to match the units of the density. For instance, if the length is in feet and the density is in pounds per cubic inch, the length must be converted to inches prior to conducting the calculations. Always remember to thoroughly verify your measurements and calculations to ensure precision.

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