• SPIRAL CARBON STEEL PIPE 32’‘-48'' System 1
  • SPIRAL CARBON STEEL PIPE 32’‘-48'' System 2
  • SPIRAL CARBON STEEL PIPE 32’‘-48'' System 3
  • SPIRAL CARBON STEEL PIPE 32’‘-48'' System 4
SPIRAL CARBON STEEL PIPE 32’‘-48''

SPIRAL CARBON STEEL PIPE 32’‘-48''

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Packaging & Delivery

Packaging Detail:

standard export packing or as customer's requirement

Delivery Detail:

within 10 - 30 days

Specifications

Spiral Welded Steel Pipes and Tubes
1.Material:Q195-Q235
2.Length:1-12m
3.WT:1.0-14mm
4.O.D.:20-273mm

Spiral Welded Steel Pipes and Tubes

Product Description:

1.Material : Q235,Q345,L245,L290,L360,L415,L450,L485,GrB,X42,46,X52,X56,X60,X65,X70,X80,X100

2,Standard:  SY/T5037-2000,GB/T9711-2011,API Spec 5L PSL1/PSL2,ASTM A252\A53,ISO3183,DIN17172,EN10217,JIS G3457,AWWA C200,ASTM A139,ASTM A671,ASTM A672

3.Wall thickness:  3.0mm-30mm

4.Outer diameter:  φ168mm-3020mm

5,Length:  5m-12m or as your requirement

6,Corrosion protection standard: DIN30670,DIN30671, AWWAC210, AWWA C203, SY/T0413-2002,SY/T0414-2002

7,Application: Oil, gas, natural gas, water pipe, thermal electricity pipe, steel structure engineering, etc

Q195-q345 Material Steel Pipe's Materials

     Elements
     Material  

Chemical Compsition%

Mechanical Property

C%

Mn%

S%

P%

Si%

Yield Point (Mpa)

Tensile Strength(Mpa)

Elongation
(%)

Q195

0.06-0.12

0.25-0.50

<0.050

<0.045

<0.030

>195

315-430

32-33

Q215

0.09-0.15

0.25-0.55

<0.05

<0.045

<0.030

>215

335-450

26-31

Q235

0.12-0.20

0.30-0.70

<0.045

<0.045

<0.030

>235

375-500

24-26

Q345

<0.20

1.0-1.6

<0.040

<0.040

<0.55

>345

470-630

21-22

Q: How are steel pipes used in the infrastructure development?
Steel pipes are widely used in infrastructure development for various purposes such as water supply, sewage systems, gas pipelines, and transportation of oil and natural gas. They provide a durable and efficient solution for the construction of underground and aboveground infrastructure, ensuring the safe and reliable transportation of fluids and gases. Steel pipes are also used in the construction of bridges, buildings, and other structural components, as they offer strength, versatility, and resilience to withstand harsh environmental conditions.
Q: What are the different methods of pipe protection for steel pipes?
There are several methods of pipe protection for steel pipes. These include corrosion-resistant coatings such as epoxy or polyethylene, cathodic protection systems, which use sacrificial anodes or impressed current to prevent corrosion, wrapping the pipes with protective tape or shrink sleeves, and using corrosion inhibitors to prevent the formation of rust. Additionally, proper installation practices, regular inspections, and maintenance can also contribute to pipe protection.
Q: What does GALV mean in a steel tube?
Steel tube (Steel pipe) production technology development began in the bicycle manufacturing industry, the rise of the early nineteenth Century during the oil development, the two world war ships, boilers, aircraft manufacturing, manufacturing of power boiler after the Second World War, the development of chemical industry of petroleum and natural gas drilling and transportation, will effectively promote the the yield and quality of varieties, the development of steel tube industry.
Q: What is the average lifespan of steel pipes in different applications?
The lifespan of steel pipes in different applications can vary due to various factors, such as the quality of the steel, the environment in which they are used, and the maintenance and care they receive. Water supply lines typically have steel pipes that can last around 50 to 70 years on average. These pipes are often made of high-quality steel and experience less corrosive environments. However, the presence of corrosive substances, water chemistry, and soil conditions can significantly impact their lifespan. For industrial applications like oil and gas pipelines, steel pipes generally have a lifespan ranging from 20 to 50 years. These pipes are exposed to aggressive environments with high temperatures, pressure, and corrosive substances. Extending their lifespan can be achieved through regular inspections, maintenance, and corrosion protection measures. In construction applications, steel pipes used for structural purposes can last an average of 50 to 100 years or longer. These pipes are designed to withstand heavy loads and are often safeguarded by coatings or insulation to prevent corrosion. It's important to understand that these are average lifespans, and individual pipes may have shorter or longer lifespans depending on specific conditions. Ensuring the longevity of steel pipes in different applications can be achieved through regular inspections, maintenance, and timely repairs or replacements when necessary.
Q: How do you determine the pipe schedule for steel pipes?
The pipe schedule for steel pipes is determined based on several factors including the pressure rating, wall thickness, and outer diameter of the pipe. The pipe schedule is a standardized system used to classify the thickness of pipe walls, and it helps ensure compatibility and safety in various applications. To determine the pipe schedule for steel pipes, you need to consider the maximum pressure the pipe will be subjected to. This is usually expressed in pounds per square inch (psi) or bars. The pressure rating of a pipe indicates the maximum pressure it can withstand without failure or leakage. The higher the pressure rating, the thicker the pipe walls need to be. The wall thickness of the pipe is another important factor in determining the pipe schedule. It is typically expressed in inches or millimeters. The wall thickness is directly related to the pressure rating, as thicker walls can handle higher pressures. The American National Standards Institute (ANSI) provides a set of standard wall thicknesses for steel pipes known as the "pipe schedule." The outer diameter of the pipe is also considered when determining the pipe schedule. The outer diameter can vary depending on the specific application and requirements. It is important to choose a pipe with the appropriate outer diameter to ensure proper fit and compatibility with fittings, valves, and other components. In summary, the pipe schedule for steel pipes is determined by considering the maximum pressure, wall thickness, and outer diameter. By matching these factors with the appropriate pipe schedule, you can ensure that the steel pipe will be suitable for its intended use and capable of withstanding the required pressure.
Q: How can two smooth steel pipes be joined? The size of the two pipe is different (except for welding)
Butt fastener: used for connecting two steel pipe jointsThin-walled stainless steel pipe, the national standard consists of three parts, respectively on the thin stainless steel pipe connection, the sealing ring of raw materials of various specifications of O type thin wall stainless steel pipe diameter and wall thickness of pipe and rubber have clear requirements, in order to ensure the quality of the whole pipeline, pipeline safety and guarantee system durability. The connection mode is clamp type and ring type.
Q: Can steel pipes be used for pharmaceutical manufacturing?
No, steel pipes are not typically used for pharmaceutical manufacturing as they can pose a risk of contamination and corrosion. Instead, pharmaceutical manufacturing typically relies on materials such as stainless steel or specialized polymers that are more suitable for maintaining sterile conditions and ensuring product purity.
Q: Are steel pipes suitable for underground sewage systems?
Yes, steel pipes are suitable for underground sewage systems. They are durable, strong, and resistant to corrosion, making them a reliable choice for carrying sewage underground. Additionally, steel pipes have a long lifespan and can withstand the pressure and weight of the surrounding soil, making them a suitable option for underground sewage systems.
Q: Can steel pipes be used for the construction of tunnels?
Yes, steel pipes can be used for the construction of tunnels. Steel pipes are often used as support structures in tunnel construction due to their strength, durability, and ability to withstand high pressures. They can be used for various purposes such as drainage, ventilation, or as part of the tunnel structure itself. Additionally, steel pipes can be easily manufactured, transported, and installed, making them a popular choice in tunnel construction projects.
Q: Can the KBG25 steel tube hold 4 six types of cables?
Over five types of cables, the outer cross section is about 24 square millimeters, over six types of network cable for the outer cross section of about 35 square millimeters, so 35*4/490=28.57%, far more than 20%. Therefore, according to the norm, only 3 super six categories can be worn. If the distance is short and the joint is not enough, it can be laid like this, but it does not conform to the construction standard

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