• CNBM SPIRAL STEEL PIPE 3600MM System 1
  • CNBM SPIRAL STEEL PIPE 3600MM System 2
  • CNBM SPIRAL STEEL PIPE 3600MM System 3
CNBM SPIRAL STEEL PIPE 3600MM

CNBM SPIRAL STEEL PIPE 3600MM

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China Main Port
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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:What are the disadvantages of using steel pipes?
One disadvantage of using steel pipes is that they are prone to corrosion, especially in environments with high humidity or exposure to certain chemicals. This can lead to structural damage and reduced lifespan of the pipes. Additionally, steel pipes are relatively heavy and bulky, making transportation and installation more challenging compared to other pipe materials. Lastly, steel pipes can be more expensive than alternative materials, which can impact project budgets.
Q:Can steel pipes be used in high-pressure applications?
Yes, steel pipes can be used in high-pressure applications. Steel pipes are known for their strength and durability, making them suitable for handling high-pressure fluids or gases in various industries such as oil and gas, chemical processing, and power generation. They are designed to withstand the stress and pressure exerted on them, ensuring reliable performance and safety in high-pressure environments.
Q:Are steel pipes suitable for underground sewage lines?
Yes, steel pipes are suitable for underground sewage lines. They are strong, durable, and resistant to corrosion, making them an excellent choice for sewage systems.
Q:What are the factors affecting the price of steel pipes?
The price of steel pipes can be influenced by various factors. These factors encompass: 1. Raw material expenses: The cost of raw materials like iron ore and coal significantly influences the price of steel pipes. Fluctuations in commodity prices can impact the overall production cost and subsequently affect the selling price. 2. Supply and demand dynamics: The price of steel pipes is determined by the interplay of supply and demand. When there is high demand and limited supply, prices tend to rise. Conversely, an oversupply and low demand can lead to price decreases. 3. Production and manufacturing costs: The direct impact of production and manufacturing expenses on steel pipe prices cannot be overlooked. Costs related to labor, energy, transportation, and equipment maintenance all contribute to the overall production cost and, consequently, the selling price. 4. Market competition: The level of competition within the steel pipe industry also influences prices. Increased competition among manufacturers and suppliers can result in more competitive pricing. Conversely, fewer competitors may lead to higher prices due to limited options. 5. Government policies and regulations: Government policies and regulations exert a significant influence on steel pipe prices. Import tariffs, trade restrictions, and environmental regulations can all affect production costs and subsequently impact prices. 6. Currency exchange rates: Currency exchange rates can also sway steel pipe prices. Fluctuations in exchange rates between countries can impact the cost of importing or exporting steel pipes, which in turn affects their selling price. 7. Global economic conditions: The overall state of the global economy can have repercussions on steel pipe prices. During periods of economic growth, demand for steel pipes may increase, leading to higher prices. Conversely, economic downturns can result in decreased demand and subsequently lower prices. It is vital to acknowledge that these factors can interact and fluctuate over time, making the pricing of steel pipes a complex and ever-changing process.
Q:What is the maximum operating temperature for steel pipes?
The maximum operating temperature for steel pipes can vary depending on the grade of steel used, but it is generally around 1000°C (1832°F) for standard carbon steel pipes.
Q:What is the thermal expansion coefficient of steel pipes?
The thermal expansion coefficient of steel pipes varies based on the particular steel type and the temperature range in which the expansion is measured. On average, the thermal expansion coefficient of steel pipes is between 10-14 x 10^-6 per degree Celsius (10-14 μm/m°C). Thus, for each degree Celsius rise in temperature, the length of a steel pipe will roughly increase by 10-14 μm per meter. It is vital to acknowledge that this value is an average and may slightly differ based on the specific composition and treatment of the steel employed in the pipe.
Q:Are steel pipes suitable for use in chemical plants?
Yes, steel pipes are suitable for use in chemical plants. Steel pipes offer excellent resistance to corrosion, high durability, and can withstand high temperatures and pressures commonly found in chemical processing. Additionally, steel pipes can be easily welded, making them versatile for various chemical applications.
Q:How are steel pipes used in HVAC systems?
Steel pipes are commonly used in HVAC systems for various purposes. They are used for transporting fluids such as water, steam, and refrigerant throughout the system. These pipes are durable and resistant to high temperatures and pressures, making them suitable for the demanding conditions of HVAC applications. They are used for distributing and circulating the heated or cooled air, as well as for connecting different components of the system, including boilers, chillers, heat exchangers, and air handlers. Additionally, steel pipes are often used for ventilation and exhaust purposes in HVAC systems.
Q:What is a valve and how is it used in steel pipes?
A valve is a device used to control the flow of fluid or gas within a system. In steel pipes, valves are used to regulate and control the flow of liquids or gases by opening, closing, or partially obstructing the passage within the pipe. They are essential for redirecting or stopping the flow, ensuring the safe and efficient operation of the steel pipe system.
Q:How do steel pipes perform in seismic zones?
Steel pipes perform well in seismic zones due to their inherent strength and ductility. Their high tensile strength allows them to withstand the horizontal forces exerted during an earthquake, while their ductility allows them to deform and absorb the energy generated by seismic activity. Additionally, steel pipes can be designed and installed with proper reinforcement and bracing systems to further enhance their performance in seismic zones.

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