• square pipe and gb System 1
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square pipe and gb

square pipe and gb

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
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Quick Details

  • Standard:BS, GB, API

  • Standard:BS 1387, GB 3087-1999, GB/T 8163-1999, GB/T 3087, API 5L

  • Grade:10#-45#, Q195-Q345

  • Grade:10#, 20#, 45#, Q235, Q345, Q195

  • Thickness:0.5 - 15 mm

  • Section Shape:Square

  • Place of Origin:Hebei, China (Mainland)

  • Secondary Or Not:Non-secondary

  • Application:Structure Pipe

  • Technique:ERW

  • Surface Treatment:Other

Packaging & Delivery

Packaging Details:With bundles and load in containers or by bulk shipment.
Delivery Detail:30-45 days according to the contract

Specifications

1.Size:15*15mm-400*400mm
2.W.T:0.5-12mm
3.Certification:ISO9001,CE
4.Standard:GB, ASTM.BS1387

galvanized steel pipe

1.ERW galvanized steel tubes
2.OD: 10.3-219mm
3.W.T:0.6-10mm
4.Certificate:ISO 9001-2008
5.Output per month:20000 tons

ERW galvanized steel tubes

O.D

O.D tolerance

W.T

Thickness Tolerance

19--219MM

±0.03

1.0--10MM

±0.03

Length

2--12M , according to customers' requirements

Zinc coating

275--350g/m2

International Standard

ISO 9001;2008

Standard

ASTM A 53 / BS 1387-1985

Material

Q195/Q215/Q235/Q345

Product  Category :

Metallurgy, Mineral & Energy

Technique:

Welded

Packing

In bundles or according to customers' requirements

Usage

1.For low pressure liquid delivery such as water , gas and oil

2.For construction , e.g building greenhouse

Main market:

Middle east, Africa, North and South America, East and West Europe, South and southeast Asia,Australia

Place of Origin

China

HS code:

7306309000

Productivity

20000Ton/Month

Processing technology available:

Threading , coupling and with plastic caps protected

Remarks

1) Payment term : T/T

2) Trade Terms : FOB / CFR /CIF

3) Minimum quantity of order : 25 MT (25,000KGS)

4) Delivery period : 10 to 30 Days .

Q:Can galvanized pipe be welded with seamless steel tube? What should I do to connect?
To look at the use of concrete after welding, if the stress is relatively large and thin galvanized pipe wall is recommended to not use welding, if the requirement is not high Po mouth welding should be welding depends on galvanized pipe material selection electrode generally no sealing material are 20
Q:Are steel tubes and round steel in weight or length when purchased?
A large amount of words is calculated by weight, less is usually calculated. According to the length between the length and quality of a material is usually a scaling. Steel belongs to the section, with the length of valuation, according to the classification of wall thickness and diameter; round steel belongs to building materials, mostly for the amount of weighing per ton of valuation, a small amount of more than according to the length multiplied by the conversion ratio of weight to that theory. But the latter is the valuation of tons of steel products between the uneven thickness, with uniform proportion will produce larger price difference, so the general price of different manufacturers are not the same, mostly depends on the quality, to a certain extent is to balance the diameter difference.
Q:What are the different types of steel pipe joints for underwater applications?
There are various types of steel pipe joints commonly used for underwater applications, including buttweld joints, socket weld joints, and threaded joints. These joints provide secure connections and maintain the integrity of the pipeline system in underwater environments.
Q:How are steel pipes used in the construction of offshore platforms?
Steel pipes are used in the construction of offshore platforms primarily for their strength and durability. These pipes serve various purposes such as transporting fluids, providing structural support, and enabling the installation of essential equipment. They are commonly used for the fabrication of underwater pipelines, risers, and conductor casings, ensuring efficient and reliable operations in harsh marine environments.
Q:What are the different methods of coating steel pipes for insulation?
Insulating steel pipes can be achieved through various methods, each with its own pros and cons. 1. One method involves applying a layer of thermal insulation material, like mineral wool or foam, onto the steel pipes. This helps minimize heat transfer and energy loss. While these coatings are easy to apply and offer excellent insulation properties, they are prone to degradation over time and require regular maintenance and replacement. 2. Another approach is to coat the steel pipes with materials that protect against corrosion, such as epoxy or polyethylene. These coatings act as a barrier, shielding the pipes from moisture, chemicals, and other corrosive elements. They are durable and long-lasting, providing effective protection. However, they may not offer significant thermal insulation. 3. Fusion-bonded epoxy (FBE) coating is a popular method that combines both insulation and corrosion protection. It involves applying a layer of epoxy powder to the pipes and heating it to create a strong bond. FBE coatings offer excellent adhesion, corrosion resistance, and some thermal insulation properties. They are commonly used in oil and gas pipelines, enduring harsh environments and high temperatures. 4. Polyurethane foam is often used as an insulation coating for steel pipes. It is applied by spraying or injecting the foam onto the pipe surface, where it expands and hardens, forming a protective layer. Polyurethane foam coatings provide exceptional thermal insulation and can be applied to pipes of different shapes and sizes. However, they require specialized equipment and expertise and may be susceptible to physical damage or moisture absorption if not properly sealed. 5. Ceramic coatings offer yet another option for insulating steel pipes. These coatings are typically applied through a thermal spray process, creating a layer of ceramic material on the pipe surface. Ceramic coatings provide insulation against high temperatures, corrosion resistance, and thermal shock protection. They are commonly used in industries like power generation and aerospace, where extreme temperature conditions are present. However, ceramic coatings can be costly and require specialized equipment and expertise for application.
Q:How are steel pipes measured and specified?
Steel pipes are measured and specified using several key parameters. The most common ones include the outer diameter (OD), wall thickness, and length of the pipe. The outer diameter refers to the measurement of the pipe's outside surface from one end to the other. It is typically expressed in millimeters (mm) or inches (in), and it plays a critical role in determining the pipe's strength and carrying capacity. Different applications require different OD sizes, which can range from a few millimeters to several feet. The wall thickness of a steel pipe refers to the distance between its outer and inner surfaces. It is measured in millimeters or inches and is crucial for determining the pipe's durability and resistance to pressure. Thicker walls can handle higher pressure, making them suitable for applications that require transporting liquids or gases under high pressure. The length of steel pipes is generally specified in meters or feet. Standard pipe lengths are often 6 or 12 meters (20 or 40 feet), but custom lengths can be requested based on project requirements. It is important to note that longer pipes may require additional support to prevent sagging or structural issues. Apart from these primary measurements, steel pipes may also be specified based on other factors such as material grade, manufacturing standard, and surface finish. Material grade refers to the quality and composition of the steel used in the pipe, which determines its strength and corrosion resistance. Manufacturing standards, such as ASTM or API, ensure that the pipes meet specific quality and performance criteria. Surface finish specifications may include factors like galvanized coating, which provides protection against corrosion or other specific requirements based on the intended application. Overall, the measurement and specification of steel pipes involve considering the outer diameter, wall thickness, length, material grade, manufacturing standard, and surface finish. These parameters are crucial in determining the suitability of the pipe for various applications and ensuring its performance and durability in different environments.
Q:What are the common applications of steel pipes in the oil and gas industry?
Steel pipes are commonly used in the oil and gas industry for various applications such as drilling, production, transportation, and distribution of oil and gas. They are utilized for casing and tubing in oil wells, conveying fluids in pipelines, and supporting infrastructure for refineries and processing plants. Additionally, steel pipes are crucial for offshore drilling operations and are employed in the construction of platforms and subsea pipelines.
Q:Can steel pipes be used for electrical conduits?
No, steel pipes cannot be used for electrical conduits. Electrical conduits need to be made of materials that are non-conductive and provide protection for the electrical wiring. Steel is a conductive material, so it poses a risk of electric shock and can cause interference with the electrical signals.
Q:How are steel pipes used in agriculture?
Various purposes in agriculture make steel pipes widely used, with one common application being irrigation systems. These pipes, known for their durability and ability to withstand water pressure, transport water from wells or reservoirs to different areas of farms, enabling efficient water distribution over long distances. Furthermore, steel pipes find utility in agricultural drainage systems. By removing excess water from fields, they prevent waterlogging and ensure proper drainage. Their resistance to corrosion is particularly significant in agricultural settings, where exposure to moisture and various chemicals is common. Moreover, steel pipes serve a vital purpose in the construction of greenhouse structures. They provide structural support for the greenhouse framework and facilitate the installation of irrigation systems and other equipment. The strength and sturdiness of steel pipes enable them to withstand harsh weather conditions, making them an ideal choice for greenhouse construction. Additionally, livestock farming benefits from the use of steel pipes. They are frequently employed in the creation of fences and enclosures for animals, providing a secure and long-lasting barrier. Steel pipes also play a crucial role in the construction of animal shelters and barns. To summarize, steel pipes play a crucial and versatile role in agriculture. They are integral components in irrigation systems, drainage systems, greenhouse construction, and livestock farming. Thanks to their durability, strength, and resistance to corrosion, steel pipes are an excellent choice for a wide range of agricultural applications.
Q:What are the different testing methods used for steel pipes?
There are various testing methods used for steel pipes, including non-destructive testing methods such as ultrasonic testing, magnetic particle testing, radiographic testing, and liquid penetrant testing. These methods help detect any defects or flaws in the pipes, ensuring their quality and integrity. Additionally, destructive testing methods such as tensile testing, impact testing, and hardness testing are also used to evaluate the mechanical properties of the steel pipes.

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