hot dip galvanized steel pipe schedule 40

hot dip galvanized steel pipe schedule 40

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 60000 m.t./month

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Item specifice

Standard:

AISI,JIS,GB,BS,DIN,API,EN,ASTM

Technique:

Hot Rolled,Cold Rolled,ERW,Saw,Spring

Shape:

U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ

Surface Treatment:

Galvanized

Steel Grade:

Q235,Q235B,SS400-SS490

Thickness:

0.6~40mm

Length:

6 meters

Net Weight:

N/M

schedule 40 galvanized steel pipe are widely used in construction, steel structure, machinery etc. we can produce as per international standards. Our pipes are popluar among customers in the world for their qualith and reasonable price.

For further more informations about our steel pipe products, please see as follow table

Commodity	schedule 40 galvanized steel pipe
Shape	Round Pipe	Square Pipe	Rectangular pipe
Dimensions	O.D 1/4''~52''	1010~12001200mm	1020~10001200mm
Wall thickness	0.6~60mm	0.6~40mm	0.6~40mm
Length	Normal 6 meters long or Random lenght
Tolerance	O.D: +/- 5%, Thickness: +/- 5%; Length: +/-10%
Producing standard	Round pipe: GB/T3091, BS1387-1987, ASTM A53, DIN2440, EN39-2001. Square/Rectangular tube: GB/T6728-2002, ASTM A500 Gr A B C, JIS G3466 etc
Steel Grade	Carbon steel: Q195, Q215,Q235,Q345;SS400, STK400, STK490, ASTM A500, A53, ST37, ST35 etc.
Surface treatment	Hot dip galvanized, painting, oil, plastic powder coating, plain/beveled ends or threaded with sockets/coupling and plastic caps etc.
Inspections	With hydraulic testing, eddy current and infrared test etc
Usages	Scaffolding pipe, Structure pipe, Fence/Door pipe, Furniture, Low pressure fluid pipe for water oil or gas, Boiler pipe
Package	In bundles by steel strips, waterproof woven cloth with 7 slats, then pack into 20' or 40' container, in bulk or as per your requirements
Lead time	Within 20 days or as per your requirements
Others	1:Special design available according to requirement. 2:Pipe can be painting. 3:All production process are under the ISO9001:2000 strictly.

Q:How are steel pipes used in mining?: Steel pipes find extensive use in mining operations for a range of purposes. In mining, one of the primary applications of steel pipes involves the transportation of materials, including water, slurry, and other liquids. These pipes possess exceptional durability and can withstand the harsh conditions typically encountered in mining environments, rendering them highly suitable for long-distance material conveyance. Furthermore, steel pipes serve as crucial components in mining ventilation systems. The provision of fresh air to workers and the elimination of harmful gases and dust are of paramount importance in the mining industry. Steel pipes are employed in the construction of ventilation shafts and ducts, facilitating the airflow throughout the mine and ensuring the safety of the miners in their working environment. Moreover, steel pipes contribute significantly to the construction of underground tunnels and mine shafts. By providing structural support and reinforcement, they effectively prevent collapses and maintain the stability of the mine. The strength and durability inherent in steel pipes make them the ideal choice for these critical applications in mining. Another noteworthy use of steel pipes in mining is for the extraction of resources. In certain instances, steel pipes are deployed to establish boreholes or wells, enabling access to underground deposits of minerals or water. Inserted into the ground, these pipes are instrumental in employing various techniques such as drilling or hydraulic fracturing to extract the desired resources. In summary, steel pipes play an indispensable role in the mining industry, serving an array of purposes, including material transportation, ventilation, structural support, and resource extraction. Their strength, durability, and ability to withstand adverse conditions make them an indispensable asset in mining operations.

Q:Can steel pipes be used for geothermal systems?: Yes, steel pipes can be used for geothermal systems. Steel pipes are commonly used in geothermal systems for their high strength, durability, and ability to withstand high temperatures and pressures. They are also resistant to corrosion, making them suitable for long-term use in geothermal applications.

Q:How are steel pipes inspected for defects?: Steel pipes are inspected for defects using various methods, including visual inspection, ultrasonic testing, magnetic particle inspection, dye penetrant testing, and radiographic examination. These techniques help identify any cracks, corrosion, or other defects in the pipes to ensure their structural integrity and prevent any potential hazards or failures.

Q:How are steel pipes threaded for easy installation?: Steel pipes are threaded for easy installation using a process called threading. Threading involves cutting grooves or ridges into the pipe to create a spiral pattern. This pattern allows the pipe to easily connect with other threaded components, such as fittings or valves. There are two common methods used to thread steel pipes: manual threading and machine threading. In manual threading, a handheld tool called a pipe die is used. The die is equipped with sharp teeth that cut into the pipe as it is rotated. The pipe is secured in a vise or held firmly by hand, and the die is applied to the end of the pipe. The die is then rotated around the pipe, creating the threaded grooves. This process requires skill and precision to ensure accurate and properly aligned threads. Machine threading, on the other hand, is a more automated process. It involves the use of a pipe threading machine, which is equipped with a die head that automatically cuts the threads into the pipe. The machine secures the pipe and rotates it while the die head moves along the length of the pipe, cutting the threads. Machine threading is faster and more efficient than manual threading, making it ideal for large-scale production or projects. Regardless of the method used, it is crucial to ensure that the threads are clean and free from debris or burrs. This is important for easy installation and to prevent leaks or other complications. After threading, the pipes are typically inspected to ensure the threads meet the required specifications. Threading steel pipes allows for easy installation as the threaded ends can be easily screwed into fittings, valves, or other pipes with compatible threads. This threaded connection creates a tight seal, making it suitable for various applications, such as plumbing, gas lines, or industrial piping systems.

Q:How do you protect steel pipes from external damage?: There are several ways to ensure the protection of steel pipes from external damage: 1. Coating: To prevent external damage, it is advisable to apply a protective coating on the surface of the steel pipes. Different coating options such as epoxy, polyethylene, and fusion bonded epoxy (FBE) can be used. These coatings act as a barrier between the pipes and the surrounding environment, safeguarding them from corrosion, abrasion, and other external factors. 2. Cathodic Protection: Another method to protect the steel pipes from corrosion is by implementing cathodic protection. This involves connecting a less noble metal, either through sacrificial anodes or an impressed current, to the pipes. By doing so, the corrosive elements are attracted to the sacrificial metal, sacrificing it instead of the pipes. This process helps increase the pipes' lifespan and shields them from external damage. 3. Wrapping and Taping: To provide an additional layer of protection, it is recommended to wrap the steel pipes with materials like polyethylene or polypropylene tapes. These tapes act as a barrier against moisture, chemicals, and physical impact, ensuring the pipes are shielded from external damage. Additionally, heat shrink sleeves can be utilized to offer insulation and safeguard against corrosion. 4. Underground Installation: Proper installation techniques are crucial for safeguarding steel pipes from external damage. This includes ensuring appropriate trench depth, using suitable backfill materials, and avoiding excessive bending or stress during the installation process. Employing proper bedding and padding techniques also contributes to the pipes' protection against external factors. 5. Regular Inspection and Maintenance: It is essential to conduct periodic inspections and maintenance to detect any signs of external damage early on. This can involve visual inspections, non-destructive testing, or the utilization of advanced technologies such as pipeline integrity management systems. Timely repairs and maintenance help prevent further damage and extend the lifespan of the steel pipes. In conclusion, protecting steel pipes from external damage necessitates a combination of preventative measures, proper installation techniques, and regular maintenance. By implementing these strategies, the integrity of the pipes can be preserved, preventing corrosion, abrasion, impact, and other factors that could compromise their structural integrity.

Q:Can steel pipes be used for solar energy systems?: Yes, steel pipes can be used for solar energy systems. Steel pipes are often used for the construction of solar water heating systems, solar thermal collectors, and solar panel mounting structures. They are durable, cost-effective, and provide the necessary support for various components of a solar energy system.

Q:Can steel pipes be used for gas distribution?: Yes, steel pipes can be used for gas distribution due to their high durability and resistance to corrosion.

Q:20# seamless steel pipe and seamless steel pipe 20G what is the difference?: The difference is: 20# ordinary steel seamless steel pipe. 20G is the type of steel for high pressure boiler tubes.

Q:Can steel pipes be used for underground electrical conduits?: Yes, steel pipes can be used for underground electrical conduits. They are durable, strong, and provide excellent protection for the electrical wiring. However, it is essential to consider factors such as corrosion and grounding requirements before choosing steel pipes for underground electrical conduits.

Q:Can steel pipes be used for wastewater treatment systems?: Yes, steel pipes can be used for wastewater treatment systems. Steel pipes are commonly used in wastewater treatment systems due to their durability, corrosion resistance, and ability to withstand high pressures and temperatures. Additionally, steel pipes can be easily welded and have a long lifespan, making them a suitable choice for transporting and distributing wastewater within treatment facilities.

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