SSAW STEEL PIPE 219-3920MM API/ISO/ASTM/JIS CARBON

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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.:219-3920mm

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: φ219mm-3920mm

5,Length: 5m-12m or as customer 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 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: Can steel pipes be used for scaffolding?: Yes, steel pipes can be used for scaffolding. Steel pipes are commonly used in scaffolding due to their strength, durability, and ability to support heavy loads. They provide a stable and secure structure for workers to access elevated areas during construction or maintenance projects.

Q: What is the maximum temperature and pressure that steel pipes can withstand?: The maximum temperature and pressure that steel pipes can handle differ based on the specific grade and type of steel utilized. Nevertheless, steel pipes generally have the ability to withstand high temperatures and pressures due to their robust and long-lasting nature. In applications where high temperatures are involved, like in steam or heat transfer systems, steel pipes can typically endure temperatures up to 1000 degrees Celsius (1832 degrees Fahrenheit) or even higher. It is important to note that the exact temperature limit may fluctuate depending on the steel's alloy composition and heat treatment. In terms of pressure, steel pipes are renowned for their exceptional strength and ability to resist internal and external pressure. The maximum pressure that steel pipes can handle will depend on factors such as pipe diameter, wall thickness, and material strength. In industrial applications, steel pipes can handle pressures ranging from a few hundred psi (pounds per square inch) to several thousand psi. To ensure the safe operation of steel pipes under high temperatures and pressures, it is vital to adhere to industry standards and guidelines, as well as conduct regular inspections and maintenance. Seeking advice from engineers and professionals experienced in steel pipe systems can provide more specific information regarding the maximum temperature and pressure limits for a particular steel pipe application.

Q: What are the different types of steel pipe joints?: There are several types of steel pipe joints, including threaded and coupled joints, welded joints, flanged joints, and grooved joints.

Q: Can steel pipes be used for underground water supply pipelines?: Yes, steel pipes can be used for underground water supply pipelines. Steel pipes are strong, durable, and resistant to corrosion, making them suitable for underground applications. They are often used for water supply pipelines due to their high strength and ability to withstand high pressure and load. Additionally, steel pipes can be welded together, ensuring leak-free connections, and are available in various sizes to accommodate different water supply needs.

Q: How are steel pipes used in geothermal energy systems?: Steel pipes are an essential component in geothermal energy systems as they are used to transport the hot water or steam extracted from the underground reservoirs to the surface. These pipes are designed to withstand high temperatures and pressure, ensuring the safe and efficient transfer of geothermal fluids. Additionally, steel pipes are also utilized in the construction of geothermal power plants, connecting various components like heat exchangers and turbines, facilitating the generation of renewable and sustainable energy.

Q: How are steel pipes protected against fire?: Steel pipes are typically protected against fire through the application of fire-resistant coatings or by encasing them in fire-rated materials, such as concrete or gypsum board. Additionally, fire sprinkler systems or fire-resistant insulation may be installed around the pipes to provide an added layer of protection.

Q: What is the lifespan of galvanized steel pipes?: The lifespan of galvanized steel pipes can vary depending on various factors such as the quality of the galvanization, the environment in which they are installed, and the maintenance they receive. However, on average, galvanized steel pipes can last between 40 to 70 years.

Q: How do you calculate the weight of a steel pipe?: To calculate the weight of a steel pipe, you would need to know the dimensions of the pipe, specifically the outer diameter (OD), wall thickness, and length. Firstly, you need to determine the cross-sectional area of the pipe. This can be done by subtracting the inner diameter (ID) from the outer diameter (OD) and dividing the result by 2 to get the radius. Then, you can use the formula A = πr^2 to calculate the area. Next, multiply the cross-sectional area by the length of the pipe to get the volume. The formula for volume is V = A * L, where A is the cross-sectional area and L is the length. Finally, to calculate the weight of the steel pipe, you need to multiply the volume by the density of steel. The density of steel is typically around 7850 kilograms per cubic meter (kg/m^3) or 0.2836 pounds per cubic inch (lb/in^3). The formula for weight is W = V * ρ, where V is the volume and ρ is the density of steel. It's important to note that if you are working with different units, you will need to convert them to match the units of the density. For example, if the length is in feet and the density is in pounds per cubic inch, you would need to convert the length to inches before performing the calculations. Remember to double-check your measurements and calculations to ensure accuracy.

Q: What are the different methods of wrapping steel pipes for corrosion protection?: There are several methods used for wrapping steel pipes to provide corrosion protection. These methods include the use of tapes, shrink sleeves, liquid coatings, and powder coatings. Each method has its advantages and disadvantages, and the choice of wrapping method depends on factors such as the environment, the required level of protection, and the budget.

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