SSAW CNBM STEEL PIPE 48''

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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 do you calculate the thermal expansion of steel pipes?: To calculate the thermal expansion of steel pipes, you need to use the coefficient of thermal expansion (CTE) for steel. The CTE is a measure of how much a material expands or contracts with changes in temperature. For steel, the average value of the CTE is typically around 12 x 10^-6 per degree Celsius (12 μm/m°C). To calculate the thermal expansion of a steel pipe, you need to know the initial length of the pipe (L0), the change in temperature (ΔT), and the coefficient of thermal expansion (CTE) for steel. The formula to calculate the thermal expansion is as follows: ΔL = L0 * CTE * ΔT Where: ΔL is the change in length of the steel pipe L0 is the initial length of the steel pipe CTE is the coefficient of thermal expansion for steel ΔT is the change in temperature For example, let's say you have a steel pipe with an initial length of 2 meters (L0), and the temperature increases by 50 degrees Celsius (ΔT). The CTE for steel is 12 x 10^-6 per degree Celsius. ΔL = 2m * 12 x 10^-6/°C * 50°C ΔL = 0.00024m/m°C * 50°C ΔL = 0.012m Therefore, the steel pipe would expand by 0.012 meters or 12 millimeters when the temperature increases by 50 degrees Celsius. It's important to note that this calculation assumes a linear expansion, which is valid for small changes in temperature. However, for larger temperature differences or more complex pipe systems, a more detailed analysis may be required to account for factors such as the pipe's material properties, geometry, and thermal boundary conditions.

Q:What are the safety precautions to follow while working with steel pipes?: When working with steel pipes, it is important to follow several safety precautions to ensure a safe working environment. These precautions include wearing appropriate personal protective equipment (PPE), such as gloves, steel-toed boots, and safety glasses, to protect against potential hazards. It is also crucial to inspect the pipes for any defects or damage before use to avoid accidents. Additionally, workers should be trained on proper handling and lifting techniques to prevent strains or injuries. Finally, it is essential to establish clear communication and adhere to safety protocols, such as using caution signs and barriers, to promote a safe work area for everyone involved.

Q:Can steel pipes be used for conveying sewage sludge?: Yes, steel pipes can be used for conveying sewage sludge. Steel pipes are commonly used in various industrial applications, including the transportation of sewage sludge. They are strong, durable, and resistant to corrosion, making them suitable for handling the potentially corrosive nature of sewage sludge.

Q:Can steel pipes be used for underground heating systems?: Yes, steel pipes can be used for underground heating systems. Steel pipes are commonly used for this purpose due to their durability, strength, and resistance to corrosion. They can effectively transport hot water or steam to provide heating in underground systems.

Q:Can steel pipes be used for underground water lines?: Yes, steel pipes can be used for underground water lines.

Q:Are steel pipes suitable for use in hydropower plants?: Yes, steel pipes are suitable for use in hydropower plants. Steel pipes offer several advantages such as high strength, durability, and corrosion resistance, making them ideal for transporting water or fluids in hydropower plants. Additionally, steel pipes can withstand high pressure and temperature conditions, ensuring smooth and efficient operation of the hydropower plant.

Q:How do steel pipes handle thermal expansion and contraction?: Steel pipes are able to handle thermal expansion and contraction due to their unique properties and design. When exposed to high temperatures, steel pipes expand as the molecules within the material gain energy and move more vigorously. Conversely, when exposed to low temperatures, steel pipes contract as the molecules lose energy and move less vigorously. To accommodate these changes, steel pipes are manufactured with certain features. One such feature is the allowance of clearance between pipe joints. This clearance allows for expansion and contraction without causing stress or deformation in the pipe. Additionally, the use of expansion joints or flexible connectors within the piping system helps to absorb the thermal movements and prevent damage. Furthermore, steel pipes are often installed with proper anchoring and support systems. These systems are designed to allow the pipes to freely expand and contract within a certain range without causing excessive stress or strain on the structure or surrounding components. Anchoring and support systems also help to maintain the overall stability and integrity of the piping system. In some cases, thermal insulation materials are applied to steel pipes to minimize temperature changes and reduce the effects of expansion and contraction. These insulating materials help to maintain a more consistent temperature within the pipe, reducing the magnitude of thermal movements. Overall, steel pipes are well-suited to handle thermal expansion and contraction due to their inherent strength and flexibility. With proper design, installation, and maintenance, steel pipes can effectively accommodate temperature changes without compromising their structural integrity or functionality.

Q:What are the different methods of joining steel pipes for steam applications?: Some common methods of joining steel pipes for steam applications include welding, threading, and flanging. Welding involves melting and fusing the pipes together, creating a strong and permanent connection. Threading involves cutting grooves into the ends of the pipes and screwing them together using threaded fittings. Flanging involves using a flange to connect the pipes, which is then bolted together for a secure and leak-free connection. Each method has its own advantages and considerations depending on the specific application and requirements.

Q:Can steel pipes be used for natural gas processing plants?: Yes, steel pipes can be used for natural gas processing plants. Steel pipes are commonly used in the oil and gas industry due to their strength, durability, and resistance to high pressure and extreme temperatures. They provide a reliable and efficient means of transporting natural gas within processing plants.

Q:Can steel pipes be used for shipbuilding?: Certainly, shipbuilding can make use of steel pipes. Steel is a widely employed material in ship construction owing to its robustness, endurance, and resistance to corrosion. Steel pipes serve multiple purposes in shipbuilding, encompassing the manufacture of the vessel's hull, superstructure, and various internal systems such as plumbing, ventilation, and fuel lines. The strength and structural integrity of steel pipes render them suitable for enduring the unforgiving conditions encountered at sea, including high pressures, extreme temperatures, and exposure to saltwater. Furthermore, steel pipes can be easily welded and shaped to meet the precise requirements of shipbuilding, making them an adaptable choice for this industry.

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