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Shape	Round pipe	Square pipe	Rectangular pipe
Outer diameter	17-1820mm	15*15-170-170mm	1020-12080mm
Wall thickness	0.5-25mm	0.5-2.3mm	0.5-2.3mm
Length	4m-14m or as customers' requirements
Standard	BS1387-85,GB/T3091-08,DIN2440,JIS-G3444,EN10255,ASTM A53
Zinc coating	Pre galvanized steel pipe: 60-150g/m2;
End finish	Plain/ beveled ends or threaded with sockets/coupling and plastic caps.
Material	Q195 Q215 Q235 Q345 St37 St52 St37-2 10# 20# 16Mn
Usage	Scaffolding pipe, Structure pipe, Fence/Door pipe, Furniture, Lowpressure fluid pipe for water oil or gas, Boiler pipe.
Place of origin	China

Q: How are steel pipes inspected for compliance with industry standards?: Steel pipes are inspected for compliance with industry standards through various methods, including visual examination, dimensional measurements, non-destructive testing, and mechanical testing. Trained inspectors carefully inspect the pipes to ensure they meet the required specifications, such as wall thickness, diameter, and surface quality. Non-destructive testing techniques like ultrasonic testing or magnetic particle inspection are used to detect any internal or surface defects. Mechanical tests, such as tensile or bend tests, are performed to evaluate the pipe's strength and ability to withstand pressure. These inspections help ensure that steel pipes meet the necessary industry standards and are fit for their intended use.

Q: Does seamless steel tube have a bend of 135 degrees?: In engineering, it is usually marked as "45 elbow" and has no "135" mark. The angle of the elbow is acute, so there will be no more than 90 degrees elbow.

Q: Are steel pipes suitable for underground industrial waste disposal?: Due to their durability and strength, steel pipes find frequent use in underground industrial waste disposal. Their ability to withstand harsh underground conditions, such as moisture, pressure, and corrosion, is noteworthy. Furthermore, steel pipes exhibit resistance to chemical reactions, making them well-suited for managing diverse types of industrial waste. In this manner, they can effectively transport and confine hazardous materials, thereby guaranteeing the safety and safeguarding of the environment and its surroundings. Overall, steel pipes are widely acknowledged as a dependable and effective choice for underground industrial waste disposal.

Q: How are steel pipes used in hydroelectric power plants?: Steel pipes are used in hydroelectric power plants to transport water from the reservoir to the turbines. These pipes are able to withstand high pressure and ensure a reliable flow of water, which is crucial for the efficient operation of the turbines. Additionally, steel pipes are also used for the construction of penstocks, which control the flow of water and direct it towards the turbines.

Q: Are steel pipes resistant to vibration?: Yes, steel pipes have excellent resistance to vibration due to their high strength and stiffness properties. The inherent rigidity of steel makes it highly resistant to the effects of vibration, making steel pipes a reliable choice for applications where vibration is a concern.

Q: What are the different grades of steel pipes?: There are several grades of steel pipes, including ASTM A53, ASTM A106, and API 5L. These grades vary in terms of their composition, strength, and intended use.

Q: Can steel pipes be used for underground sprinkler systems?: Indeed, underground sprinkler systems can utilize steel pipes. Renowned for their durability and strength, steel pipes prove to be a fitting choice for underground applications. Their resistance to corrosion and ability to withstand high pressure and temperature render them suitable for conveying water to sprinkler heads. Nonetheless, it is crucial to acknowledge that steel pipes may necessitate supplementary coatings or protective measures to prevent rusting and corrosion in the long run. Moreover, the cost factor should be taken into account as steel pipes may be pricier compared to alternative materials like PVC or polyethylene. All in all, steel pipes can serve as a feasible option for underground sprinkler systems, particularly in regions with more severe environmental conditions.

Q: Can steel pipes be used for conveying hazardous chemicals?: Steel pipes can be used for conveying hazardous chemicals, as they are highly resistant to corrosion and can withstand high pressures. However, it is crucial to consider the compatibility of the chemicals with steel and ensure that appropriate safety measures and protective coatings are in place to prevent any potential leaks or reactions.

Q: Can steel pipes be used for conveying slurries or abrasive materials?: Indeed, the utilization of steel pipes proves effective in the conveyance of slurries or abrasive substances. Renowned for their robustness and endurance, steel pipes are aptly suited for the management of demanding tasks. They exhibit resistance against wear, corrosion, and impact, rendering them exceptionally suitable for transporting abrasive materials or slurries laden with solids or particles. Furthermore, steel pipes possess the ability to endure high pressure and retain their structural integrity, thereby guaranteeing the secure and efficient transportation of slurries or abrasive substances.

Q: How are steel pipes stored and transported?: Steel pipes are typically stored in warehouses or open yards, stacked in an organized manner to prevent damage. They are often transported using trucks or railcars, secured with straps or clamps to ensure stability. For long-distance transportation, pipes may be bundled together or loaded onto flatbed trailers. Additionally, protective coatings are applied to prevent corrosion during storage and transportation.

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