SPIRAL CARBON STEEL PIPE ASTM A106 System 1

SPIRAL CARBON STEEL PIPE 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:What is the role of steel pipes in the food processing industry?: Steel pipes play a crucial role in the food processing industry as they are used to transport various liquids, gases, and solid materials. They provide a safe and hygienic means of transferring ingredients, such as water, oils, and food products, from one processing stage to another. Steel pipes are resistant to corrosion and can withstand high temperatures, making them suitable for food processing environments. They also ensure the integrity and quality of the food by preventing contamination and maintaining proper sanitation standards.

Q:Can steel pipes be used for underground power transmission?: Yes, steel pipes can be used for underground power transmission. Steel pipes are commonly used for underground power transmission due to their durability, strength, and resistance to corrosion. They provide a reliable and secure conduit for transmitting power underground while protecting the electrical cables from external elements.

Q:Water, gas, steel pipes, thick steel wire means?: Thick steel wire pipe is the same wire pipe, but the wire pipe is thin tube, easy to damage, so with thick as the outer diameter can protect the wire tube, so called thick steel wire pipe.

Q:Is it good to buy a simple wardrobe or a steel pipe?: If the home place is big, buy Wooden, good-looking durable, if the place is small, buy cloth, easy to receive, mobile, tidy and cheap.

Q:How do you inspect steel pipes for defects?: Inspecting steel pipes for defects involves a systematic approach that combines visual inspection, non-destructive testing (NDT) techniques, and specialized equipment. Here are the steps typically followed to inspect steel pipes for defects: 1. Visual Inspection: Start by visually examining the external surface of the pipe, looking for any visible signs of defects such as cracks, dents, or corrosion. Pay close attention to welds, joints, and areas susceptible to stress or damage. 2. Ultrasonic Testing (UT): Ultrasonic testing is commonly used to detect internal defects in steel pipes. It involves using ultrasonic waves that are sent into the pipe and then interpreted based on the echoes received. Any irregularities in the internal structure, like cracks or voids, can be identified and analyzed. 3. Magnetic Particle Inspection (MPI): MPI is a widely used technique to detect surface and near-surface defects such as cracks, seams, or other discontinuities. This method involves applying a magnetic field to the pipe and then applying ferromagnetic particles (usually iron-based) on the surface. These particles will accumulate and form visible indications at the areas of magnetic flux leakage caused by defects. 4. Eddy Current Testing (ECT): Eddy current testing is suitable for detecting surface and near-surface defects in conductive materials like steel. It involves inducing an alternating current into the pipe and monitoring the changes in the electrical currents induced by any defects present. These changes are then analyzed to identify and evaluate the defects. 5. Radiographic Testing (RT): Radiographic testing is performed by exposing the steel pipe to X-rays or gamma rays and capturing the resulting radiographic images. This technique allows for the detection of internal defects such as cracks, porosity, inclusions, or wall thickness variations. The radiographic images are then examined for any indications of defects. 6. Dye Penetrant Inspection (DPI): DPI is a method used to detect surface-breaking defects in steel pipes. It involves applying a liquid dye on the surface, which penetrates into any surface cracks or flaws. After allowing the dye to seep in and adequately react, excess dye is removed, and a developer is applied to draw out the dye from the defects, making them visible. 7. Pressure Testing: Pressure testing involves pressurizing the steel pipe to a predetermined level and monitoring for any pressure drops or leaks. This test ensures that the pipe can withstand the required pressure without any structural defects. It is important to note that the inspection technique used depends on various factors, such as the type of defect being sought, the size and nature of the pipe, and the specific industry standards and regulations. Inspection professionals with expertise in NDT methods and equipment are typically employed to ensure accurate and reliable results.

Q:Can steel pipes be used for underground chemical pipelines?: Yes, steel pipes can be used for underground chemical pipelines. Steel pipes are widely used in various industries, including the chemical industry, due to their durability, strength, and resistance to corrosion. When selecting steel pipes for underground chemical pipelines, it is important to choose the appropriate grade of steel that is resistant to corrosion from the specific chemicals being transported. Additionally, proper coating and lining techniques can further enhance the resistance of steel pipes to chemical corrosion. Regular inspection and maintenance are also necessary to ensure the integrity and safety of the underground chemical pipeline system.

Q:25 of the steel pipe with 6 in charge of what is the difference?: 25 of the steel pipe with 6 in charge of the difference:25 of the steel pipe refers to the DN25 tube, the outer diameter of 25mm; 6, in charge of refers to DN20 steel pipe, the outer diameter is 20mm.

Q:Can steel pipes be used for transporting sewage?: Yes, steel pipes can be used for transporting sewage. Steel pipes are strong, durable, and resistant to corrosion, making them suitable for sewage transportation systems.

Q:How are steel pipes protected against lightning strikes?: Steel pipes are typically protected against lightning strikes through the use of lightning rods and grounding systems. These measures help to divert the electrical energy from a lightning strike away from the steel pipes, preventing damage or potential accidents.

Q:Are steel pipes suitable for underground installations in areas with high moisture content?: In areas with high moisture content, steel pipes are commonly used for underground installations. However, it is important to consider certain factors when utilizing steel pipes in such conditions. Prolonged exposure to moisture can lead to corrosion, which is a significant concern. To mitigate this risk, it is crucial to employ steel pipes that are specifically designed for underground installations and are coated with protective materials like epoxy or polyethylene. These protective coatings act as a barrier between the steel and the surrounding moisture, preventing corrosion and prolonging the lifespan of the pipes. Furthermore, proper installation techniques, including sufficient pipe bedding and backfilling, must be adhered to in order to ensure that the pipes are adequately supported and shielded from external forces. Regular inspection and maintenance are also advisable to promptly identify any signs of corrosion or damage and address them accordingly. Overall, by taking the appropriate precautions and conducting regular maintenance, steel pipes can be a viable choice for underground installations in areas with high moisture content.

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