CARBON STEEL PIPE FITTINGS ASTM A234 FLANGE 16'' 20'' 22''

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1.we produce seamless steel pipe
2.size:48-219*4.5-45mm
3.ISO 9000 approved
4.Market:south/east Asia,Mid-east,South America

seamless steel pipe

Material J55 K55 N80 L80 P110.etc

Standard ASTM JIS

Usage conveying oil gas ,oil pipe line,pipe material collar,oil nature gas,

Packing wooden cases or wooden pallet ,export standard package

Others:Special design available according to requirement

Anti-corrosion available and high temperature resistence

Delivery time 30days

Payment term T/T L/C

Coupling and thread can be required according to customer requirment

Q: Can steel pipes be used for oil and gas pipelines?: Yes, steel pipes are commonly used for oil and gas pipelines due to their high strength, durability, and resistance to corrosion.

Q: What is the pressure rating of steel pipes?: The pressure rating of steel pipes varies depending on the specific grade and size of the pipe. However, steel pipes are known for their high strength and durability, allowing them to withstand high-pressure applications.

Q: What is the weight of steel pipes?: The weight of steel pipes can vary depending on their size, thickness, and length. However, on average, steel pipes can range from a few kilograms to several tons in weight.

Q: Are steel pipes suitable for wastewater treatment plants?: Yes, steel pipes are suitable for wastewater treatment plants. Steel pipes are known for their durability, corrosion resistance, and high strength, making them ideal for handling the demanding conditions of wastewater treatment plants. They can effectively transport and contain wastewater without any structural or functional issues, ensuring efficient and reliable operation of the treatment process.

Q: Are steel pipes suitable for hydronic heating systems?: Steel pipes are an excellent choice for hydronic heating systems. Their durability and strength make them highly reliable for transporting hot water or steam. They can handle high temperatures and pressures, ensuring efficient heat transfer throughout the system. Moreover, steel pipes are resistant to corrosion, preventing potential leaks or damage over time. However, it is crucial to insulate steel pipes properly to reduce heat loss and enhance energy efficiency in the hydronic heating system. In conclusion, steel pipes are widely preferred for hydronic heating systems due to their reliability, durability, and ability to meet the demands of heating water or steam.

Q: Can steel pipes withstand high temperatures?: Yes, steel pipes can withstand high temperatures as they have a high melting point and excellent heat resistance properties, making them suitable for various industrial applications involving high temperature environments.

Q: What is the difference between steel pipes and copper pipes?: The main difference between steel pipes and copper pipes lies in their material composition. Steel pipes are made of iron and carbon, while copper pipes are composed of copper metal. Additionally, steel pipes are generally more durable and can withstand higher pressure and temperature levels, making them suitable for industrial applications. On the other hand, copper pipes are more malleable and easily bent, making them ideal for residential plumbing systems. Moreover, copper pipes have better corrosion resistance compared to steel pipes, which may require coatings or treatments to prevent rusting.

Q: What are the different coatings applied to steel pipes?: There are various coatings that can be applied to steel pipes to enhance their durability and protect them from corrosion. Some common coatings include fusion-bonded epoxy (FBE), which provides excellent corrosion resistance, and polyethylene (PE), which offers high impact strength. Other coatings include polyurethane (PU) and coal tar enamel, which provide additional protection against abrasion and chemical corrosion. Additionally, zinc coatings such as hot-dip galvanizing are used to prevent rust and extend the lifespan of steel pipes.

Q: How can seamless steel tubes be produced?: After extrusion to remove pipe sizing. The sizing machine passes through the cone bit and rotates into the steel embryo at high speed to form a steel tube. The inner diameter of the steel pipe is determined by the outside diameter and length of the sizing machine. When the steel tube is fixed, it enters the cooling tower and is cooled by spraying water. The steel tube is straightened after cooling. After straightening, the steel pipe is sent to the metal flaw detector (or water pressure experiment) by the conveyor belt for internal inspection. If there are cracks in the steel pipe, bubbles and other problems will be detected. Steel pipe quality inspection, but also through strict manual selection. After the quality inspection of the steel pipe, spray with the paint on the number, specifications, production batch number and so on. The crane is hoisted into the warehouse.

Q: How are steel pipes joined together?: Steel pipes are often joined together using different methods such as welding, threading, and couplings. Welding involves melting the pipe ends and fusing them together, creating a strong and seamless joint. Threading involves cutting threads on the pipe ends and using fittings to screw them together. Couplings are used to connect two pipes by sliding them over the ends and tightening them with bolts or screws.

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