• SPIRAL STEEL PIPE CARBON ASTM/ API/JIS/ DIN System 1
  • SPIRAL STEEL PIPE CARBON ASTM/ API/JIS/ DIN System 2
SPIRAL STEEL PIPE CARBON ASTM/ API/JIS/ DIN

SPIRAL STEEL PIPE CARBON ASTM/ API/JIS/ DIN

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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 construction of shipbuilding?
Steel pipes are used in shipbuilding for a variety of purposes, including the construction of the ship's framework, hull, and various onboard systems. These pipes provide structural strength and durability, allowing the ship to withstand the harsh conditions at sea. They are also used for piping systems, such as fuel, water, and ventilation, ensuring the efficient operation of the vessel.
Q: How are steel pipes used in natural gas processing plants?
Steel pipes are used in natural gas processing plants to transport and distribute the gas throughout the facility. They provide a reliable and durable infrastructure for the safe and efficient movement of gas from extraction to processing and distribution.
Q: Are steel pipes resistant to ultraviolet (UV) radiation?
Steel pipes are not inherently resistant to ultraviolet (UV) radiation. UV radiation can cause degradation and discoloration of certain materials, including steel. However, the extent of the damage depends on various factors such as the type of steel, the duration and intensity of exposure to UV radiation, and the presence of protective coatings or finishes on the steel pipes. In general, uncoated steel pipes are more susceptible to UV radiation damage compared to pipes that have been treated with protective coatings or finishes. These coatings, such as epoxy or polyethylene, provide a barrier against UV radiation and help to prevent the degradation and discoloration of the steel. Therefore, it is important to consider the specific application and environment when choosing steel pipes and implementing appropriate protective measures to ensure their longevity and performance.
Q: What are the different types of steel pipe joints for underwater applications?
There are various types of steel pipe joints used for underwater applications, including welded joints, flanged joints, and mechanical joints. Welded joints involve fusing the ends of the pipes together using welding techniques, creating a continuous, strong connection. Flanged joints use flanges, which are flat, circular discs, to connect and secure the pipes together. These joints are commonly used in applications that require frequent disassembly. Mechanical joints, on the other hand, utilize mechanical devices such as couplings or clamps to connect the pipes. These joints provide flexibility and ease of installation and removal.
Q: Can steel pipes be used for transporting slurry?
Yes, steel pipes can be used for transporting slurry. Steel pipes are commonly used in various industries, including mining, construction, and oil and gas, for transporting different types of fluids, including slurry. Slurry is a mixture of solid particles suspended in a liquid, usually water, and steel pipes have the required strength and durability to handle the abrasive nature of slurry. Additionally, steel pipes have excellent resistance to corrosion, which is crucial when dealing with slurry that may contain corrosive elements. The smooth inner surface of steel pipes also helps to minimize friction and ensure efficient flow of the slurry. Overall, steel pipes are a reliable and commonly used choice for transporting slurry due to their strength, durability, corrosion resistance, and smooth inner surface.
Q: How are steel pipes protected against ultraviolet (UV) radiation?
Steel pipes can be protected against ultraviolet (UV) radiation through the application of coatings or paints that act as a barrier between the pipe surface and the UV rays. These coatings are specifically designed to resist the damaging effects of UV radiation, such as fading, chalking, or degradation of the steel material. One common method of protection is the use of UV-resistant paints or polymeric coatings that contain special additives or pigments that reflect or absorb UV rays. These coatings not only shield the steel from UV radiation but also provide an additional layer of corrosion protection, extending the lifespan of the pipes. Another method used for UV protection is the application of thermal insulation materials. These insulating materials, such as foam or coatings with reflective properties, are capable of reducing the impact of UV radiation on the steel pipes. They act as a shield, preventing direct exposure to the UV rays and minimizing the potential damage caused by prolonged exposure. It is important to note that the choice of UV protection method depends on various factors, including the specific application, environmental conditions, and the required durability of the steel pipes. Consulting with experts in the field can help determine the most suitable UV protection solution for a particular project or application.
Q: Can steel pipes be used for conveying oil?
Steel pipes are suitable for the transportation of oil. In the oil and gas industry, steel pipes are widely utilized for the conveyance of oil due to their robustness, longevity, and resistance to corrosion. The exceptional strength of steel pipes enables them to endure the demanding conditions of high pressure and temperature that often accompany oil transportation. Furthermore, steel pipes are less susceptible to leakage and damage in comparison to alternative materials, thus making them a dependable choice for the efficient transfer of oil over extensive distances. Moreover, the sleek interior surface of steel pipes aids in reducing friction and improving the oil flow. Overall, steel pipes are the preferred option for oil transportation owing to their superior mechanical properties and enduring performance.
Q: What are the different grades of steel used for manufacturing pipes?
The different grades of steel commonly used for manufacturing pipes include carbon steel, alloy steel, and stainless steel.
Q: How do you measure the thickness of steel pipes?
One common method to measure the thickness of steel pipes is to use a specialized tool called a pipe thickness gauge. This device consists of a small, handheld instrument with a probe that is inserted into the pipe. By applying pressure to the probe, the gauge can accurately determine the thickness of the pipe's wall. Additionally, ultrasonic testing can also be employed to measure the thickness by sending sound waves through the pipe and analyzing the reflections.
Q: What are the advantages of using steel pipes in the manufacturing of furniture?
There are several advantages of using steel pipes in the manufacturing of furniture. Firstly, steel pipes provide durability and strength, ensuring that the furniture is sturdy and long-lasting. Secondly, steel pipes have a sleek and modern appearance, adding a contemporary touch to the furniture design. Additionally, steel pipes are resistant to corrosion, making them suitable for both indoor and outdoor furniture. Lastly, steel pipes are versatile and can be easily shaped and welded, allowing for customization and flexibility in furniture design.

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