• OIL HOLLOW SECTION TUBE System 1
OIL HOLLOW SECTION TUBE

OIL HOLLOW SECTION TUBE

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
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Supply Capability:
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Product Name

rectangular hollow section/ RHS

Size

Size:

10*10--500*500mm

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:What is the difference between steel pipes and PPR pipes?
Steel pipes and PPR (Polypropylene Random Copolymer) pipes are two different types of pipes commonly used in various industries and applications. The main difference lies in their material composition and properties. Steel pipes are made from steel, a strong and durable metal. They are known for their high tensile strength, resistance to extreme temperatures, and ability to withstand high pressure. Steel pipes are commonly used for transporting fluids and gases in industries such as oil and gas, construction, and plumbing. On the other hand, PPR pipes are made from a type of plastic called polypropylene random copolymer. PPR pipes are known for their excellent thermal and chemical resistance, as well as their light weight and easy installation. They are commonly used for hot and cold water supply systems, as well as in heating and cooling applications. In summary, the key difference between steel pipes and PPR pipes lies in their material composition and properties. Steel pipes are stronger and more suitable for high-pressure and extreme temperature applications, while PPR pipes are lighter, easier to install, and ideal for water supply systems.
Q:Will the steel tube dance?
In a single pole dance performance, the dancer moves more naturally, herself, moves and techniques, and does what she wants to do, while the style of dance is determined by herself, no one intervenes, and quite free.
Q:What is the role of steel pipes in sewage systems?
Steel pipes play a crucial role in sewage systems as they are used to transport wastewater and sewage from various sources to treatment plants or disposal areas. Their strength, durability, and resistance to corrosion make them ideal for handling the often harsh and corrosive nature of sewage. Additionally, steel pipes can withstand high pressures and provide a reliable and long-lasting solution for sewage transportation, ensuring the efficient and safe functioning of sewage systems.
Q:Can steel pipes be used for oil well casing?
Yes, steel pipes can be used for oil well casing. They are commonly used in the oil and gas industry due to their durability, strength, and ability to withstand high pressure and extreme conditions found in oil wells.
Q:What are the common standards for coating and lining of steel pipes?
The common standards for coating and lining of steel pipes are outlined by various organizations and regulatory bodies to ensure the durability, corrosion resistance, and overall quality of the pipes. Some of the widely recognized and used standards include: 1. American Society for Testing and Materials (ASTM): ASTM has developed numerous standards for coating and lining of steel pipes, such as ASTM A775/A775M for epoxy-coated reinforcing steel, ASTM A1064/A1064M for metallic-coated steel wire, and ASTM A1057/A1057M for fusion-bonded epoxy-coated steel reinforcement. 2. American Water Works Association (AWWA): AWWA has established several standards for coating and lining of steel pipes used in the water industry. Examples include AWWA C210 for liquid epoxy coating systems for the interior and exterior of steel water pipelines, and AWWA C213 for fusion-bonded epoxy coating for the interior and exterior of steel water pipelines. 3. National Association of Corrosion Engineers (NACE): NACE International develops standards and recommended practices for the corrosion control of steel pipes. NACE SP0169 provides guidelines for selection and application of coatings for underground or submerged steel pipelines, while NACE SP0198 offers recommendations for external coatings of steel pipelines. 4. ISO Standards: The International Organization for Standardization (ISO) has developed various standards related to coating and lining of steel pipes. ISO 21809-1 specifies the requirements for external coatings applied to buried or submerged pipelines, while ISO 21809-2 focuses on the internal coating and lining of such pipelines. These standards cover different aspects of the coating and lining process, including surface preparation, application methods, minimum coating thickness, adhesion, and quality control. Adhering to these standards ensures that steel pipes are properly protected against corrosion, abrasion, and other forms of deterioration, leading to longer service life and enhanced performance in various industries such as oil and gas, water supply, and infrastructure.
Q:How do steel pipes handle water hammer in high-rise buildings?
Steel pipes in high-rise buildings are designed to handle water hammer by incorporating various features. Firstly, these pipes are often equipped with pressure relief valves or surge tanks that absorb and dissipate the sudden pressure changes caused by water hammer. Additionally, engineers use techniques such as proper pipe sizing, installation of air chambers, and use of flexible connectors to minimize the effects of water hammer. These measures help to reduce the sudden pressure spikes and prevent damage to the pipes and other plumbing components in high-rise buildings.
Q:What is the difference between nominal and actual pipe size?
The nominal pipe size refers to the approximate size of a pipe based on its interior diameter, while the actual pipe size refers to the precise measurement of the interior diameter.
Q:What are the different methods of pipe welding for steel pipes?
Steel pipes can be welded using various methods, each with its own advantages and applications. Here are some commonly used techniques: 1. Stick welding, also called Shielded Metal Arc Welding (SMAW), involves manually melting a consumable electrode coated in flux. The flux creates a protective shield around the weld pool. SMAW is versatile and can be used in different positions, making it suitable for both field and workshop applications. 2. Gas Metal Arc Welding (GMAW), also known as MIG welding, uses a continuous wire electrode fed through a welding gun. The gun supplies a shielding gas, such as argon or a mixture of argon and carbon dioxide, to protect the weld pool from contamination. GMAW is known for its high welding speed and is commonly used in industrial settings. 3. Flux-Cored Arc Welding (FCAW) is similar to GMAW, but the wire electrode is filled with flux instead of relying on an external gas. The flux creates a protective shield around the weld pool, eliminating the need for a separate gas supply. FCAW is often used in outdoor and windy conditions for better protection against contamination. 4. Gas Tungsten Arc Welding (GTAW), also called TIG welding, uses a non-consumable tungsten electrode to create the weld. A separate shielding gas, typically argon, is used to protect the weld pool. GTAW produces high-quality welds with excellent control, making it suitable for precision applications. 5. Submerged Arc Welding (SAW) is an automated process that uses a continuously fed wire electrode and a granular flux poured over the weld joint. The arc is submerged beneath the flux, providing excellent protection against contamination. SAW is commonly used in heavy fabrication and pipeline industries due to its high deposition rates and deep penetration capabilities. These are just a few of the methods available for welding steel pipes. The choice of method depends on factors such as the application, material thickness, desired weld quality, and available equipment. Selecting the appropriate method is crucial to ensure strong and reliable welds in steel pipe applications.
Q:How are steel pipes used in the construction of bridges?
Steel pipes are commonly used in the construction of bridges for various purposes such as supporting the bridge structure, providing stability, and facilitating the passage of fluids like water or gases. Steel pipes are used as piers or piles to support the weight of the bridge, acting as strong and durable foundations. They are also used for constructing the bridge's framework, such as beams and trusses, which provide the necessary strength and load-bearing capacity. Additionally, steel pipes may be used as conduits for utilities like water, gas, or electrical cables, allowing for efficient transportation across the bridge.
Q:Can steel pipes be used for the construction of transmission towers?
Yes, steel pipes can be used for the construction of transmission towers. Steel pipes are known for their strength, durability, and ability to withstand heavy loads and harsh weather conditions, making them an ideal choice for building transmission towers. Steel pipes can provide the necessary support and stability required for high-voltage power transmission lines.

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