• 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 railways?
Steel pipes are used in the construction of railways for various purposes such as laying tracks, supporting structures, drainage systems, and carrying utilities like water and electrical cables. They provide strength, durability, and corrosion resistance, ensuring the smooth functioning and longevity of railway infrastructure.
Q: How are steel pipes used in the construction of pipelines?
Steel pipes are commonly used in the construction of pipelines due to their durability, strength, and resistance to corrosion. These pipes are welded together to form a continuous line, allowing fluids or gases to be transported over long distances. The steel pipes are essential for ensuring a reliable and efficient flow of materials, such as oil, gas, or water, in various industries, including oil and gas, water supply, and infrastructure development.
Q: How are steel pipes used in the manufacturing of automotive exhaust systems?
Steel pipes are used in the manufacturing of automotive exhaust systems as they provide durability, strength, and corrosion resistance required to withstand high temperatures and harsh conditions. These pipes are used to transport exhaust gases from the engine to the rear of the vehicle, ensuring efficient emission control and noise reduction.
Q: What is the maximum allowable stress for steel pipes?
The maximum allowable stress for steel pipes depends on various factors such as the grade of steel, diameter, wall thickness, and the intended application. It is typically determined by industry standards and codes, such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. Therefore, there is no one-size-fits-all answer to this question.
Q: How are steel pipes used in the manufacturing of railways?
Steel pipes are commonly used in the manufacturing of railways for various purposes. They are used for the construction of railway tracks, providing a strong and durable foundation. Steel pipes are also used in the manufacturing of railway bridges and tunnels, ensuring structural integrity and support. Additionally, steel pipes are utilized for the transportation of fluids and gases within the railway system, such as fuel or water.
Q: Can steel pipes be used for drinking water supply?
Drinking water supply can indeed utilize steel pipes. For water distribution systems, steel pipes are widely employed owing to their robustness, longevity, and capacity to endure high pressures. Nevertheless, it is crucial to highlight that the steel employed in these pipes must be purposefully engineered and endorsed for potable water applications. This ensures the water remains uncontaminated by any detrimental substances. Furthermore, regular inspections and appropriate upkeep are imperative to avert the development of rust or corrosion, which may impact water quality.
Q: Why should the weak electricity be pre buried with galvanized steel pipe?
Galvanized steel is widely used in construction, machinery, coal, chemical industry, railway vehicles, automobile industry, highway, bridge, container, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and other manufacturing industries.
Q: Seamless steel pipe and welded pipe what is the difference?
Seamless steel pipe is made of solid round tubes and perforated without gaps. The welded pipe is made of steel or strip after welding and has a slit. Generally seamless pipe can be greater pressure on the city.
Q: How does galvanization protect steel pipes from corrosion?
Galvanization protects steel pipes from corrosion by creating a protective zinc layer on the surface of the steel. This zinc layer acts as a barrier, preventing moisture and oxygen from reaching the steel, thus inhibiting the formation of rust and corrosion.
Q: What are the factors to consider when selecting a steel pipe for a specific application?
When selecting a steel pipe for a specific application, several factors need to be considered. These include the type of fluid or gas being transported, the pressure and temperature conditions, the size and dimensions required, the desired corrosion resistance, and the overall budget for the project. It is also crucial to assess the pipe's material properties, such as its strength, ductility, and toughness, to ensure it can withstand the operational demands of the application. Additionally, factors like the pipe's manufacturing process, compatibility with joining methods, and any specific industry standards or regulations should be taken into account.

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