• SPIRAL STEEL PIPE System 1
  • SPIRAL STEEL PIPE System 2
  • SPIRAL STEEL PIPE System 3
  • SPIRAL STEEL PIPE System 4
SPIRAL STEEL PIPE

SPIRAL STEEL PIPE

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Loading Port:
China Main Port
Payment Terms:
TT OR LC
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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 is the minimum temperature that steel pipes can handle?
The minimum temperature at which steel pipes can withstand depends on the particular grade and composition of the steel. In general, steel pipes can endure extremely low temperatures without encountering significant issues. In fact, numerous steel varieties are specifically engineered to endure freezing temperatures, making them suitable for a range of uses in industries like oil and gas, construction, and cryogenics. However, it is crucial to acknowledge that steel may become more brittle at exceedingly low temperatures, which can impact its mechanical properties. Therefore, it is vital to meticulously choose the appropriate steel grade and consider any specific requirements or limitations for the desired application when determining the minimum temperature that steel pipes can handle.
Q: Are steel pipes resistant to UV radiation?
Yes, steel pipes are generally resistant to UV radiation. UV radiation is known to cause damage to materials over time, such as fading, discoloration, and degradation. However, steel pipes are typically coated with protective layers, such as paint or galvanization, which help to shield them from UV radiation. These coatings act as a barrier, preventing the direct exposure of steel to UV rays and minimizing the potential for damage. Additionally, the inherent properties of steel, including its strength and durability, make it less susceptible to the effects of UV radiation compared to other materials like plastics or rubber. However, it is important to note that prolonged exposure to intense UV radiation can still have some impact on steel pipes, such as slight discoloration or surface degradation. Regular maintenance and inspection are recommended to ensure the continued performance and longevity of steel pipes in outdoor or UV-exposed environments.
Q: What does "spiral welded steel pipe" DN325*10 mean?
Spiral welded steel pipe with nominal diameter of 325mm and wall thickness of 10mm
Q: What are the quality control measures for steel pipe manufacturing?
Quality control measures for steel pipe manufacturing include various inspections and tests to ensure the pipes meet the required standards and specifications. Some common quality control measures include visual inspections for surface defects, dimensional checks to ensure accurate size and length, ultrasonic or magnetic particle testing for detecting internal or surface defects, hydrostatic testing to check for leaks or weaknesses, and chemical analysis to verify the composition of the steel. Additionally, adherence to proper manufacturing processes, documentation of procedures, and regular audits are also part of quality control measures in steel pipe manufacturing.
Q: D108*4 what does "D108" mean by seamless steel tubes? What does "*4" mean?
Seamless steel pipe: a pipe with a hollow cross section, used as a conduit for transporting fluids, such as pipelines for transporting petroleum, natural gas, gas, water, and certain solid materials. Compared withsteel and roundsteelinsolid, flexural torsional strength in the same time, the weight is light, is a kind of economic section steel, widely used in the manufacture of structural parts and mechanical parts, such as the oil pipe, automobile transmission shaft, the bicycle frame and steel construction with scaffold with steel pipe manufacturing ring parts can be improved the utilization rate of materials, simplify the manufacturing process, material saving and working hours, has been widely used to manufacture steel tube.
Q: What is the difference between Schedule 40 and Schedule 80 steel pipes?
The main difference between Schedule 40 and Schedule 80 steel pipes lies in their wall thickness. Schedule 40 pipes have a thinner wall, making them suitable for low-pressure applications, while Schedule 80 pipes have a thicker wall, enabling them to withstand higher pressure.
Q: How are steel pipes used in the manufacturing of renewable energy systems?
Steel pipes are widely used in the manufacturing of renewable energy systems due to their durability, strength, and versatility. They are primarily used in the construction of wind turbines, solar panel frames, and the transmission of geothermal energy. Steel pipes provide the necessary structural support and stability required for these systems, ensuring their long-term functionality and reliability. Additionally, steel pipes are often used for transporting and distributing renewable energy sources, such as natural gas and hydrogen, further contributing to the overall efficiency and sustainability of these systems.
Q: How are steel pipes used in the construction of irrigation systems?
Steel pipes are commonly used in the construction of irrigation systems due to their durability and strength. They are used to transport water from the source to the fields or crops efficiently. Steel pipes can withstand high pressure and are resistant to corrosion, making them ideal for long-term use in irrigation systems. Additionally, their smooth interior surface allows for a smooth flow of water, ensuring efficient water distribution and minimizing the risk of clogs or blockages.
Q: How are steel pipes insulated?
Steel pipes are commonly insulated using a variety of materials such as fiberglass, mineral wool, or foam insulation. These insulating materials are typically wrapped around the steel pipes to prevent heat loss or gain, as well as to protect against corrosion and condensation. Additionally, a vapor barrier may be applied to further enhance the insulation performance.
Q: What are the common welding techniques used for steel pipes?
The common welding techniques used for steel pipes include Shielded Metal Arc Welding (SMAW or stick welding), Gas Metal Arc Welding (GMAW or MIG welding), Flux-Cored Arc Welding (FCAW), and Gas Tungsten Arc Welding (GTAW or TIG welding).

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