• SPIRAL CARBON STEEL PIPE ASTM A53/ASTM A106 System 1
  • SPIRAL CARBON STEEL PIPE ASTM A53/ASTM A106 System 2
  • SPIRAL CARBON STEEL PIPE ASTM A53/ASTM A106 System 3
SPIRAL CARBON STEEL PIPE ASTM A53/ASTM A106

SPIRAL CARBON STEEL PIPE ASTM A53/ASTM A106

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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 food processing industry?
Steel pipes are commonly used in the food processing industry for various applications such as transporting liquids, gases, and solids. They are utilized for moving ingredients, process water, and cleaning solutions within the production line. Additionally, steel pipes are used for steam and heating systems, allowing for efficient cooking and sterilization processes. They possess excellent corrosion resistance and durability, ensuring food safety and maintaining hygienic standards in the industry.
Q: How are steel pipes classified based on their schedule?
Steel pipes are classified based on their schedule, which refers to the thickness of the pipe walls. The schedule classification system includes different numerical values, such as Schedule 10, Schedule 40, and Schedule 80, to categorize pipes with varying wall thicknesses.
Q: What are the different methods of repairing damaged steel pipes?
There are several methods for repairing damaged steel pipes, including welding, epoxy coatings, pipe wrapping, and pipe lining. Welding involves fusing the damaged sections of the pipe using heat and specialized equipment. Epoxy coatings are applied to the damaged area to create a protective layer and restore the pipe's integrity. Pipe wrapping involves applying specialized tapes or wraps around the damaged area to provide structural support. Pipe lining involves inserting a new pipe into the damaged one, creating a seamless and durable solution. The appropriate method depends on the extent and location of the damage, as well as other factors such as cost and time constraints.
Q: How are steel pipes used in the defense sector?
Steel pipes are used in the defense sector for various purposes such as constructing military infrastructure, including bunkers, underground facilities, and missile silos. They are also utilized in the manufacturing of military vehicles, weapons systems, and equipment. Steel pipes provide strength, durability, and resistance to extreme conditions, making them ideal for applications in the defense sector.
Q: Outside diameter 60, thickness 3.5 seamless steel tube, how many kilograms per meter?
Other commonly used theoretical weight formulas per metre:Thread steel (Kg/m):W=0.00617 * D * D, D - sectional diameter (mm)Fang Gang (Kg/m):W=0.00785 * a * a, a - edge width (mm)Flat steel (kg/m):W= 0.00785 * b * D, B -- edge width (mm) d - thickness (mm)Round steel rod (kg/m),:W= 0.006165 * D * D, D - diameter (mm)
Q: How are steel pipes tested for quality assurance?
Steel pipes are tested for quality assurance through various methods such as hydrostatic testing, non-destructive testing (NDT) techniques like ultrasonic testing, magnetic particle testing, and visual inspection. These tests ensure that the pipes meet the required standards and specifications, checking for flaws, defects, and proper dimensional accuracy.
Q: How are steel pipes insulated for thermal purposes?
Various methods are commonly employed to insulate steel pipes for thermal purposes. One method frequently utilized involves wrapping the pipes with insulation materials like fiberglass, mineral wool, or foam. These materials act as a barrier between the pipe and its surroundings, effectively preventing heat transfer or loss. To ensure the proper insulation of steel pipes, the insulation material is typically tightly wrapped around the pipe, leaving no gaps or openings for heat to escape. Adhesive tapes or metal bands are then used to secure the insulation in place. In addition to external insulation, internal insulation can also be applied to steel pipes. This involves placing insulation material inside the pipe, creating a protective layer against heat loss or gain. Internal insulation is commonly utilized in situations where the pipe carries hot fluids or gases. Moreover, certain steel pipes are designed to incorporate a built-in insulation layer. These pipes, known as pre-insulated pipes, already come equipped with insulation material integrated into their structure. The insulation layer is typically made of foam or mineral wool and is covered with a protective outer layer, ensuring effective thermal insulation. The insulation of steel pipes for thermal purposes plays a critical role in various industries, including oil and gas, HVAC, and plumbing. Proper insulation helps to maintain the desired temperature of fluids or gases flowing through the pipes, preventing energy loss and enhancing overall efficiency.
Q: What are the different types of gaskets used with steel pipes?
There are several types of gaskets commonly used with steel pipes, including ring type joint (RTJ) gaskets, spiral wound gaskets, and flat gaskets. RTJ gaskets are designed to create a tight seal by compressing between two flanges, while spiral wound gaskets consist of a metal winding and filler material for enhanced sealing properties. Flat gaskets are typically made from rubber or non-metallic materials and are used for lower pressure applications.
Q: How are steel pipes protected from corrosion?
Steel pipes are protected from corrosion through various methods such as applying protective coatings like paint or epoxy, galvanization, and cathodic protection. These measures create a barrier between the steel surface and corrosive elements to prevent the pipes from rusting and deteriorating.
Q: How are steel pipes used in the manufacturing of desalination plants?
Steel pipes are used in the manufacturing of desalination plants for various purposes, such as transporting seawater, brine, and freshwater through different stages of the desalination process. They are also used for the construction of pipelines, intake systems, and discharge outlets, ensuring durability, corrosion resistance, and efficient water flow in these critical systems.

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