SPIRAL STEEL PIPE 16‘‘ CARBON STEEL ASTM API

SPIRAL STEEL PIPE 16‘‘ CARBON STEEL ASTM API System 1

SPIRAL STEEL PIPE 16‘‘ CARBON STEEL ASTM API

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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 does seamless steel tube mean? What are the main uses? What are the classifications?: 1.: Construction of the underground pipeline, levy more pumping, boiler hot water transportation etc..2., mechanical processing, bearing sets, processing machinery parts.

Q:How do you calculate the flow velocity in a steel pipe?: The flow velocity in a steel pipe can be calculated using the equation: velocity = (flow rate) / (cross-sectional area of the pipe).

Q:What is the difference between steel pipe and polyethylene pipe?: Steel pipe and polyethylene pipe are two different types of materials used for plumbing and construction purposes. The main difference between these two pipes lies in their composition and characteristics. Steel pipe is made from a combination of iron and carbon, which gives it its strength and durability. It is commonly used in applications where high pressure and heavy loads are expected, such as in industrial settings or for underground gas and oil pipelines. Steel pipe is known for its resistance to corrosion and its ability to withstand extreme temperatures. On the other hand, polyethylene pipe is a type of plastic pipe made from high-density polyethylene (HDPE) or low-density polyethylene (LDPE). It is lightweight, flexible, and easy to install, making it a popular choice for residential plumbing and irrigation systems. Polyethylene pipe is resistant to chemicals, UV rays, and abrasive materials, making it suitable for both above-ground and underground installations. Another significant difference between steel pipe and polyethylene pipe is their cost. Steel pipe generally tends to be more expensive due to the raw materials and manufacturing processes involved. Polyethylene pipe, on the other hand, is relatively affordable and cost-effective, especially for smaller-scale projects. In terms of maintenance, steel pipe requires periodic inspections and maintenance to prevent corrosion and ensure its longevity. Polyethylene pipe, on the other hand, is virtually maintenance-free due to its resistance to corrosion and chemical degradation. In summary, the main difference between steel pipe and polyethylene pipe lies in their composition, strength, durability, cost, and maintenance requirements. The choice between these two pipes depends on the specific needs of the project, taking into consideration factors such as pressure, load, budget, and environmental conditions.

Q:What is the average cost of steel pipes?: The average cost of steel pipes can vary depending on several factors such as the size, grade, and quantity of the pipes needed, as well as the current market conditions. Generally, the cost of steel pipes ranges from $500 to $1500 per ton. However, it is important to note that this is a rough estimate, and prices can fluctuate based on factors like demand, location, and quality. It is recommended to reach out to suppliers or manufacturers for more accurate pricing information based on specific project requirements.

Q:Can steel pipes be used for fire sprinkler systems?: Yes, steel pipes can be used for fire sprinkler systems.

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:What are the different methods of non-destructive testing for steel pipes?: There are several methods of non-destructive testing for steel pipes, including ultrasonic testing, magnetic particle testing, liquid penetrant testing, radiographic testing, and eddy current testing. These methods help to detect any defects or anomalies in the pipes without causing any damage, ensuring their structural integrity and reliability.

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:How are steel pipes protected against UV radiation?: Steel pipes are typically protected against UV radiation through the application of specialized coatings or paints that contain UV inhibitors. These coatings form a barrier between the steel surface and the sun's UV rays, preventing degradation, discoloration, and potential structural damage caused by prolonged exposure to UV radiation.

Q:What is the lifespan of steel pipes?: The lifespan of steel pipes can vary depending on various factors such as the quality of the steel, usage conditions, maintenance, and external factors like corrosion. However, properly installed and maintained steel pipes can typically last for several decades or even a century.

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