• GB3087 Seamless Steel Tubes and Pipes for Low and Medium Pressure Boiler System 1
  • GB3087 Seamless Steel Tubes and Pipes for Low and Medium Pressure Boiler System 2
  • GB3087 Seamless Steel Tubes and Pipes for Low and Medium Pressure Boiler System 3
GB3087 Seamless Steel Tubes and Pipes for Low and Medium Pressure Boiler

GB3087 Seamless Steel Tubes and Pipes for Low and Medium Pressure Boiler

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Loading Port:
TianJin Port
Payment Terms:
TT or LC
Min Order Qty:
50 MT m.t.
Supply Capability:
5000 Tons Per Month m.t./month

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Seamless steel tubes and pipes for low and medium pressure boiler

 Standard of Seamless steel tubes and pipes for low and medium pressure boiler: Chinese GB3087

 

Application of Seamless steel tubes and pipes for low and medium pressure boiler:For manufacturing ,heating-pipeliners ,containers,steaming pipeliners of low/medium pressure boilers(P<5.88Mpa,T<450℃)

 

Main steel pipe grade of Seamless steel tubes and pipes for low and medium pressure boiler: 10、20(Other grade is also negotiable.)

 

Chemical Compositon & Mechanical Propertise :

Standard

Grade

Chemical Compositon

C

Mn

Si

Cr

Ni

Cu

P.S

GB3087

10

0.07~0.14

0.35~0.65

0.17~0.37

≤ 0.15

≤ 0.30

≤ 0.20

≤ 0.030

20

0.17~0.24

0.35~0.65

0.17~0.37

≤ 0.25

≤ 0.25

≤ 0.20

≤ 0.030

Mechanical Propertise

Tensile Strength(Mpa)

Yield Strength(Mpa)

Elongation(%)

10

335~475

≥ 195

≥ 24

20

410~550

≥ 245

≥ 20

 

GB3087 Seamless Steel Tubes and Pipes for Low and Medium Pressure Boiler

 

GB3087 Seamless Steel Tubes and Pipes for Low and Medium Pressure Boiler

Q: How are steel pipes threaded for easy installation?
The process of threading steel pipes enables convenient installation by creating grooves or ridges in the pipe, forming a spiral pattern that facilitates connection with other threaded components like fittings or valves. There are two commonly employed methods for threading steel pipes: manual threading and machine threading. Manual threading involves the utilization of a handheld tool called a pipe die. This die, equipped with sharp teeth, cuts into the pipe while it is rotated. The pipe is secured in a vise or held firmly by hand, and the die is applied to the pipe's end. As the die rotates around the pipe, threaded grooves are formed. Executing this process necessitates skill and precision to ensure accurate and properly aligned threads. In contrast, machine threading is a more automated procedure. It utilizes a pipe threading machine, which possesses a die head that automatically cuts the threads into the pipe. The machine holds the pipe securely and rotates it while the die head moves along the pipe's length, creating the threads. Machine threading is faster and more efficient than manual threading, making it ideal for large-scale production or projects. Regardless of the chosen method, it is imperative to ensure that the threads are clean and devoid of debris or burrs. This is crucial for effortless installation and to prevent leaks or other complications. Following threading, the pipes are generally inspected to ensure compliance with the required specifications. Threading steel pipes allows for uncomplicated installation as the threaded ends can be readily screwed into fittings, valves, or other pipes possessing compatible threads. This threaded connection creates a tight seal, rendering it suitable for various applications such as plumbing, gas lines, or industrial piping systems.
Q: How are steel pipes protected against mechanical impact?
Steel pipes are protected against mechanical impact through the use of various methods such as applying protective coatings, using impact-resistant materials, utilizing proper installation techniques, and implementing impact protection measures like bollards or guards.
Q: How do you cut steel pipes?
Steel pipes can be cut using various methods such as using a hacksaw, reciprocating saw, angle grinder, or a pipe cutter. The choice of method depends on the thickness and diameter of the pipe, as well as the precision required for the cut.
Q: What is the difference between steel pipe and tubing?
The main difference between steel pipe and tubing lies in their shape and size. Steel pipe is typically cylindrical in shape and has a larger diameter compared to tubing, which is generally produced in a variety of shapes, including round, square, and rectangular, with smaller diameters. Additionally, steel pipe is commonly used for transporting fluids and gases, while tubing is often utilized for structural applications or as components in mechanical systems.
Q: What is the maximum temperature and pressure that steel pipes can withstand?
The maximum temperature and pressure that steel pipes can withstand vary depending on the specific grade and type of steel being used. However, in general, steel pipes can withstand high temperatures and pressures due to their strong and durable nature. For high-temperature applications, such as in steam or heat transfer systems, steel pipes can typically withstand temperatures up to 1000 degrees Celsius (1832 degrees Fahrenheit) or even higher. It is important to note that the specific temperature limit may vary depending on the alloy composition and heat treatment of the steel. Regarding pressure, steel pipes are known for their excellent strength and resistance to internal and external pressure. The maximum pressure that steel pipes can withstand will depend on factors such as the pipe diameter, wall thickness, and material strength. In industrial applications, steel pipes can withstand pressures ranging from a few hundred psi (pounds per square inch) to several thousand psi. To ensure the safe operation of steel pipes under high temperatures and pressures, it is crucial to follow industry standards and guidelines, as well as perform regular inspections and maintenance. Consulting with engineers and professionals experienced in steel pipe systems can provide more specific information regarding the maximum temperature and pressure limits for a particular steel pipe application.
Q: How are steel pipes used in the marine industry?
Steel pipes are commonly used in the marine industry for various applications such as shipbuilding, offshore oil and gas exploration, and marine infrastructure. They are utilized for constructing hulls, pipelines, and support structures due to their high strength, durability, and resistance to corrosion from seawater. Steel pipes also provide a reliable and efficient means of transporting fluids, gases, and other materials within marine vessels and structures.
Q: What is the difference between hot-dip galvanizing and electroplating of steel pipes?
Hot-dip galvanizing and electroplating are two different methods used to protect steel pipes from corrosion. Hot-dip galvanizing involves immersing the steel pipes into a molten zinc bath. The zinc reacts with the steel surface, forming a series of zinc-iron alloy layers on the pipe's surface. This process creates a robust and uniform coating that provides excellent corrosion resistance. Hot-dip galvanizing is commonly used for outdoor applications and in environments where the pipes are exposed to harsh conditions, such as water or chemicals. On the other hand, electroplating involves the deposition of a thin layer of metal onto the surface of the steel pipes using an electric current. In the case of steel pipes, the most common metal used for electroplating is zinc. The steel pipes act as the cathode, and a zinc anode is placed in a solution containing zinc ions. The electric current causes the zinc ions to react with the steel surface, resulting in the formation of a thin zinc coating. Electroplating provides a more decorative finish and is often used for indoor applications or when aesthetics are a priority. In terms of the coating thickness, hot-dip galvanizing generally provides a thicker and more durable coating compared to electroplating. The hot-dip galvanized coating is typically several times thicker than the electroplated zinc coating. This thicker coating offers better protection against corrosion and provides a longer lifespan for the steel pipes. Another difference lies in the coating appearance. Hot-dip galvanizing produces a coating with a matte gray finish, while electroplating can result in a more lustrous and shiny appearance. Cost-wise, hot-dip galvanizing is generally more cost-effective for larger projects due to its efficiency in coating multiple pipes simultaneously. Electroplating, on the other hand, is typically more expensive and time-consuming, especially for larger quantities of steel pipes. Overall, the choice between hot-dip galvanizing and electroplating depends on the specific requirements of the project, including the intended application, environment, aesthetics, and budget constraints.
Q: What are the main components of a steel pipe?
The main components of a steel pipe include the steel material itself, which is typically made from carbon and alloy steel, as well as various coatings or linings that can be applied to enhance its durability and resistance to corrosion. Additionally, a steel pipe may also have fittings such as flanges or couplings, and may be further reinforced with supports or braces depending on its intended use.
Q: Can steel pipes be used in marine environments?
Yes, steel pipes can be used in marine environments. Steel is a durable and strong material that can withstand the harsh conditions of the marine environment, including exposure to saltwater, waves, and corrosion. However, it is important to select the correct type of steel and apply suitable protective measures to prevent corrosion. Stainless steel and corrosion-resistant alloys are commonly used in marine applications as they have a high resistance to corrosion and can handle the constant exposure to saltwater. Additionally, coatings such as epoxy or zinc can be applied to further protect steel pipes from corrosion. Regular maintenance and inspections are also crucial to ensure the longevity and performance of steel pipes in marine environments.
Q: How are steel pipes repaired if they are damaged?
Steel pipes can be repaired if they are damaged through various methods such as welding, patching, or using pipe clamps.
Our product range covers include seamless steel pipes for high temperature, heat-exchanger condenser and boiler, cold drawn or cold-rolled precision pipe, fin tubes, special shaped pipes, API series oil well pipes, ASME/DIN/JIS/EN series seamless tubes. Based on strict quality control and scientific management system, the cooperation has successfully obtained International Quality System certificate of ISO9001:2000(12809Q10292ROM), monogram certificates of API 5L (5L-0596) & API 5CT (5CT-0872) and BV certificate (MAT77113-2009)for ship building usage production.

1. Manufacturer Overview

Location Jiangsu, China
Year Established 1992
Annual Output Value 60,000Tons
Main Markets Europe and the United States;Canada; India;Bulgaria; South Korea;etc.
Company Certifications API 5L;API 5CT;GB/T19001-2008 idt ISO9001:2008

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a) Trade Capacity
Nearest Port Yan Cheng
Export Percentage 50% - 60%
No.of Employees in Trade Department 400-500 People
Language Spoken: English; Chinese; Spanish
b) Factory Information
Factory Size: Above 110,000 square meters
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average

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