ASTM A500/JIS/EN Rectangular hollow section pipe

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 5000 m.t./month

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Product Name	rectangular hollow section/ RHS
Size	Size:	1010--500500mm
	Thickness:	0.45--16mm
	Length:	3-12m
Steel Grade	Q195,Q215,Q235,Q345,16Mn, 20#
Standard	ASTM A500,EN10219,GB/T6728,GB/T6725,JIS G3466
Usage	1. For Structure, Airport, Railway 2. Construction and so on.
Ends	Plain end or By Your Choice
Surface	Bared Or With Oiled Or Galvanized
Technique	ERW ,Hot Rolled and Cold Rolled
Section Shape	Rectangular
Inspection	With Hydraulic Testing, Eddy Current , Infrared Test
Package	Bags, Bundle, In Bulk, Containers
MOQ	20 Metric Ton / Can Be Negotiated
Supply Ability	15,000 Metric Ton/Month
Date of Delivery	7 days(Qty within 1000 Metric Ton) or According To The Quantity
Port of Shipment	Tianjin, China
Payment	L/C T/T

Q: Can steel pipes be used for irrigation systems?: Yes, steel pipes can be used for irrigation systems. They are commonly used due to their durability, strength, and resistance to corrosion. Steel pipes can handle high water pressure and are suitable for both above-ground and underground installations in irrigation systems.

Q: What is the weight of a steel pipe?: The weight of a steel pipe can vary depending on its dimensions and thickness.

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 underground water supply pipelines?: Yes, steel pipes can be used for underground water supply pipelines. Steel pipes are commonly used for water supply systems due to their durability, strength, and resistance to corrosion. They can withstand high pressure and are capable of carrying large volumes of water. Additionally, steel pipes are also available in various sizes and thicknesses, allowing for flexibility in designing and installing underground water supply pipelines. However, it is important to ensure that the steel pipes are properly coated or lined to prevent corrosion and maintain the quality of the water being transported. Regular inspections and maintenance should also be conducted to prevent any potential issues with the steel pipes.

Q: What's the difference between the fastener type steel pipe scaffold, the floor type steel pipe scaffold and the overhanging type steel pipe scaffold?: Classification is not the only way, fastener type steel pipe scaffolding is divided by force, and the latter 2 are classified according to the structure.

Q: What are the environmental impacts of steel pipe production and disposal?: The production and disposal of steel pipes have significant environmental impacts. Firstly, the production of steel pipes requires the extraction of raw materials such as iron ore, coal, and limestone. This extraction process leads to habitat destruction, deforestation, and soil erosion. Additionally, mining and processing these materials require a considerable amount of energy, often derived from fossil fuels, contributing to greenhouse gas emissions and air pollution. The manufacturing process itself involves various stages, including melting, casting, rolling, and coating, all of which require substantial energy inputs and emit significant amounts of carbon dioxide and other greenhouse gases. Moreover, the production of steel pipes involves the use of chemicals and additives that can be harmful to the environment if not managed properly. Furthermore, during the disposal of steel pipes, if not recycled or properly managed, they can end up in landfills, contributing to waste accumulation and taking up valuable space. Steel is generally non-biodegradable and can take hundreds of years to decompose. When steel pipes are dumped in landfills, they can release toxic substances and heavy metals, which can contaminate soil and groundwater. However, it is important to note that steel pipes are highly recyclable, and recycling them significantly reduces the environmental impact. Recycling steel pipes helps conserve natural resources, reduces energy consumption, and lowers greenhouse gas emissions. Additionally, using recycled steel in the production of new pipes requires less energy and results in fewer emissions compared to using virgin materials. To minimize the environmental impacts of steel pipe production and disposal, it is crucial to promote sustainable practices throughout the entire lifecycle of the product. This includes reducing energy consumption, utilizing renewable energy sources, implementing proper waste management strategies, and encouraging the recycling and reuse of steel pipes.

Q: What is the thickness of steel pipes?: The thickness of steel pipes varies depending on the specific application and type of pipe used. Typically, steel pipes are available in various thicknesses, measured by their schedule or wall thickness. Schedule 40 is the most common schedule for steel pipes, known for its standard wall thickness. However, for applications demanding higher strength or pressure resistance, thicker pipes with higher schedules like Schedule 80 or Schedule 160 are also available. Moreover, the thickness of steel pipes can be tailored to meet specific project requirements.

Q: What are the different international standards for steel pipes?: There are several international standards for steel pipes that are widely recognized and used in the industry. Some of the key standards include: 1. ASTM A53: This standard covers seamless and welded black and hot-dipped galvanized steel pipes. It is commonly used for low-pressure applications such as water, gas, and steam. 2. ASTM A106: This standard covers seamless carbon steel pipes for high-temperature service. It is widely used in refineries, power plants, and petrochemical industries where high pressure and temperature conditions exist. 3. ASTM A312: This standard covers seamless, welded, and heavily cold worked austenitic stainless steel pipes. It is often used for high-temperature and corrosive environments in industries such as chemical processing, food processing, and pharmaceuticals. 4. API 5L: This standard specifies requirements for the manufacture of two product specification levels (PSL1 and PSL2) of seamless and welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries. 5. EN 10216: This European standard covers seamless steel pipes for pressure purposes. It is used in various industries such as power generation, chemical, and oil and gas. 6. JIS G3454: This Japanese standard covers carbon steel pipes for pressure service. It is commonly used in the transportation of water, gas, and oil. 7. DIN 2448: This German standard specifies seamless steel pipes for general purposes. It is widely used in various industrial applications. These are just a few examples of the many international standards that exist for steel pipes. Each standard specifies different requirements for manufacturing, dimensions, mechanical properties, and testing to ensure the quality and performance of the pipes in specific applications. It is important for manufacturers, suppliers, and users to understand and comply with the relevant standards to ensure the safe and reliable use of steel pipes.

Q: What are the different types of steel pipe supports for seismic applications?: There are several types of steel pipe supports used for seismic applications, including rigid supports, sway braces, and spring hangers. Rigid supports provide fixed support to the piping system, while sway braces are designed to absorb and redirect seismic energy. Spring hangers, on the other hand, are used to isolate and dampen vibrations caused by seismic activity. These different types of supports are selected based on the specific requirements and characteristics of the piping system and the seismic zone in which it is located.

Q: How do you prevent leaks in steel pipes?: One effective way to prevent leaks in steel pipes is by implementing a regular maintenance and inspection schedule. This includes checking for any signs of corrosion, damage, or wear and tear on the pipes. Additionally, using high-quality coatings or protective materials on the pipes can help minimize the risk of leaks by providing an extra layer of protection against external factors. Proper installation techniques and ensuring a secure connection between pipe joints are also crucial in preventing leaks.

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