• High Quality Seamless Steel Tubes And Pipes For Low And Medium Pressure Boiler System 1
  • High Quality Seamless Steel Tubes And Pipes For Low And Medium Pressure Boiler System 2
  • High Quality Seamless Steel Tubes And Pipes For Low And Medium Pressure Boiler System 3
High Quality Seamless Steel Tubes And Pipes For Low And Medium Pressure Boiler

High Quality Seamless Steel Tubes And Pipes For Low And Medium Pressure Boiler

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Loading Port:
China Main Port
Payment Terms:
TT or LC
Min Order Qty:
20MT m.t.
Supply Capability:
5000 Tons Per Month m.t./month

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Specifications of High Quality Seamless steel tubes and pipes for low and medium pressure boiler:

 

 

Standard: Chinese GB3087

 

Application:For manufacturing ,heating-pipeliners ,containers,steaming pipeliners of low/medium pressure boilers(P<5.88Mpa,T<450℃)

 

Main steel pipe grade : 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

Usage/Application of High Quality Seamless steel tubes and pipes for low and medium pressure boiler

It can be used for transmitting a large number of fluid. Such as oil, natural gas, water and some solid materials. At the same time it can be widely used as the manufacture of various structural parts and mechanical parts, as well as building construction.

 

 

Packaging/Delivery of High Quality Seamless steel tubes and pipes for low and medium pressure boiler

Wrapped in bundles with steel strips or according to customers' requirements

 

 

 

Q:Difference between cold rolled steel pipe and common steel pipe
3, the caliber of cold-rolled steel tube is smaller than that of hot rolled steel tube4, from the price point of view, cold-rolled steel pipe is 1000-2000 tons more expensive than hot-rolled steel pipe
Q:How big is the seamless steel tube of DN50?
This refers to the diameter of the steel pipe is 50 mm, DN50 steel pipe diameter is 60.3 mm, that is, 60.3 * 5 mm steel pipe
Q:Can steel pipes be used for underground water supply?
Yes, steel pipes can be used for underground water supply. Steel pipes are strong, durable, and resistant to corrosion, making them suitable for various applications, including underground water supply. However, it is important to use steel pipes that are specifically designed for underground use and are coated or lined to prevent corrosion. Additionally, proper installation and maintenance are crucial to ensure the long-term integrity and functionality of the steel pipes in an underground water supply system.
Q:What are the different types of steel coatings used for pipes?
There are several types of steel coatings used for pipes, including epoxy, polyethylene, polypropylene, and fusion bonded epoxy (FBE) coatings. Each of these coatings provides different levels of corrosion resistance and protection, making them suitable for various applications and environmental conditions.
Q:How do you inspect steel pipes for defects?
The inspection of steel pipes for defects requires a methodical approach that combines visual examination, non-destructive testing (NDT) techniques, and specialized equipment. The following are the typical steps undertaken to inspect steel pipes for defects: 1. Visual Examination: Commence by visually inspecting the external surface of the pipe, searching for any visible indications of defects, including cracks, dents, or corrosion. Particular attention should be given to welds, joints, and areas prone to stress or damage. 2. Ultrasonic Testing (UT): Ultrasonic testing is commonly employed to identify internal defects in steel pipes. This technique involves transmitting ultrasonic waves into the pipe and then interpreting the echoes received. Any irregularities in the internal structure, such as cracks or voids, can be identified and analyzed. 3. Magnetic Particle Inspection (MPI): MPI is a widely utilized technique for detecting defects on or near the surface, such as cracks, seams, or other discontinuities. This method involves applying a magnetic field to the pipe and subsequently applying ferromagnetic particles (usually iron-based) to the surface. These particles accumulate and form visible indications at areas where magnetic flux leakage is caused by defects. 4. Eddy Current Testing (ECT): Eddy current testing is suitable for detecting surface and near-surface defects in conductive materials like steel. This technique involves inducing an alternating current into the pipe and monitoring changes in the electrical currents induced by any present defects. These changes are then analyzed to identify and evaluate the defects. 5. Radiographic Testing (RT): Radiographic testing is conducted by exposing the steel pipe to X-rays or gamma rays and capturing radiographic images of the pipe. This technique allows for the detection of internal defects, such as cracks, porosity, inclusions, or variations in wall thickness. The radiographic images are subsequently examined for any indications of defects. 6. Dye Penetrant Inspection (DPI): DPI is a method used to identify defects on the surface of steel pipes. It involves applying a liquid dye to the surface, which penetrates into any surface cracks or flaws. After sufficient time for the dye to seep in and react, excess dye is removed, and a developer is applied to draw out the dye from the defects, rendering them visible. 7. Pressure Testing: Pressure testing entails pressurizing the steel pipe to a predetermined level and monitoring for any pressure drops or leaks. This test ensures that the pipe can withstand the required pressure without any structural defects. It is worth noting that the choice of inspection technique depends on various factors, such as the type of defect being sought, the size and characteristics of the pipe, and the specific industry standards and regulations. Inspection professionals with expertise in NDT methods and equipment are typically employed to ensure precise and dependable results.
Q:What is the difference between seamless and welded steel pipes?
The main difference between seamless and welded steel pipes lies in their manufacturing process. Seamless steel pipes are made by piercing a solid billet to form a hollow tube, while welded steel pipes are formed by rolling a flat sheet of steel into a tube and then welding the seam. This difference in manufacturing leads to varying characteristics such as strength, appearance, and cost. Seamless pipes are generally considered to have higher strength and are more aesthetically pleasing, but they are also more expensive to produce. Welded pipes, on the other hand, are more cost-effective and suitable for less demanding applications.
Q:Are steel pipes suitable for underground gas lines?
Yes, steel pipes are suitable for underground gas lines. They are commonly used due to their strength, durability, and resistance to corrosion, making them a reliable choice for transporting and distributing gas underground.
Q:What are the different methods of inspecting steel pipes?
There are several methods of inspecting steel pipes, including visual inspection, non-destructive testing (such as ultrasonic testing, magnetic particle testing, and dye penetrant testing), radiographic testing, and eddy current testing. These methods help identify any defects, such as cracks, corrosion, or wall thickness variations, ensuring the quality and integrity of the steel pipes.
Q:How are steel pipes used in the agriculture sector?
Steel pipes are commonly used in the agriculture sector for various purposes such as irrigation, drainage systems, and the transportation of water, chemicals, and fertilizers. They are also used in the construction of greenhouse structures and livestock enclosures, providing durability and strength to withstand harsh agricultural environments. Additionally, steel pipes are employed for post and pole applications, supporting fences and gates on farms.
Q:What are the common standards for coating and lining of steel pipes?
The most common standards for coating and lining of steel pipes include the American Petroleum Institute (API) standards such as API 5L, API 5CT, and API 5LD. Other widely recognized standards include the American Water Works Association (AWWA) standards such as AWWA C210 and AWWA C213, as well as the National Association of Corrosion Engineers (NACE) standards such as NACE RP0188 and NACE RP0394. These standards ensure the proper selection, application, and performance of coatings and linings to protect steel pipes from corrosion and other external factors.
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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