SPIRAL STEEL PIPE 38’‘ ASTM API LARGE DIAMETER PIPE
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 3000 m.t./month
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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 | 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< span=""> | <0.045< span=""> | <0.030< span=""> | >195 | 315-430 | 32-33 |
Q215 | 0.09-0.15 | 0.25-0.55 | <0.05< span=""> | <0.045< span=""> | <0.030< span=""> | >215 | 335-450 | 26-31 |
Q235 | 0.12-0.20 | 0.30-0.70 | <0.045< span=""> | <0.045< span=""> | <0.030< span=""> | >235 | 375-500 | 24-26 |
Q345 | <0.20< span=""> | 1.0-1.6 | <0.040< span=""> | <0.040< span=""> | <0.55< span=""> | >345 | 470-630 | 21-22 |
- Q: What is the average cost of steel pipes?
- Several factors, including size, grade, and quantity of steel pipes needed, as well as current market conditions, can cause the average cost of steel pipes to vary. Typically, steel pipes range in cost from $500 to $1500 per ton. Nonetheless, it should be emphasized that this is only a rough estimation, and prices may fluctuate due to factors such as demand, location, and quality. For more precise pricing information based on specific project requirements, it is advisable to contact suppliers or manufacturers.
- Q: Can steel pipes be used for structural supports?
- Yes, steel pipes can be used for structural supports. Steel pipes are strong, durable, and have high load-bearing capacity, making them suitable for providing structural support in various applications such as buildings, bridges, and infrastructure projects.
- Q: How do you calculate the pipe head loss for steel pipes?
- To calculate the pipe head loss for steel pipes, you can use the Darcy-Weisbach equation. This equation relates the head loss (hL) to the flow rate (Q), pipe diameter (D), pipe length (L), fluid density (ρ), fluid velocity (V), and a friction factor (f). The formula is as follows: hL = (f * (L/D) * (V^2))/(2g) Where: - hL is the head loss (measured in meters) - f is the friction factor (dimensionless) - L is the pipe length (measured in meters) - D is the pipe diameter (measured in meters) - V is the fluid velocity (measured in meters per second) - g is the acceleration due to gravity (usually taken as 9.81 m/s^2) The friction factor (f) depends on the Reynolds number (Re) of the flow, which is a dimensionless quantity representing the ratio of inertial forces to viscous forces. The Reynolds number can be calculated as: Re = (ρ * V * D) / μ Where: - Re is the Reynolds number (dimensionless) - ρ is the fluid density (measured in kg/m^3) - V is the fluid velocity (measured in meters per second) - D is the pipe diameter (measured in meters) - μ is the dynamic viscosity of the fluid (measured in Pa·s or N·s/m^2) The friction factor (f) can be obtained from empirical correlations or from Moody's diagram, which relates it to the Reynolds number and the relative roughness of the pipe surface. By substituting the calculated friction factor (f) and other known values into the Darcy-Weisbach equation, you can determine the head loss in the steel pipe. It is important to note that the head loss is a measure of energy loss due to friction and other factors, and it is typically expressed in terms of pressure drop or height difference.
- 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: Can steel pipes be used for the construction of transmission towers?
- Yes, steel pipes can be used for the construction of transmission towers. Steel pipes are commonly used in the construction industry due to their strength, durability, and ability to withstand heavy loads. They provide structural support and stability required for transmission towers, making them a suitable choice for this application.
- Q: What are the advantages of PVC pipe and galvanized steel pipe?
- This is different in different fields, in fact, the combination of PVC pipe and galvanized steel pipe becomes plastic steel pipe.The steel plastic pipe is in the internal and external combined with a layer of plastic pipe material and obtained a pipe, it has high mechanical strength, the steel pipe has the advantages of high impact resistance, and corrosion resistance of plastic material, has the advantages of high and low grade health fluid resistance and scaling.The steel pipe used by our company is produced by Benxi Steel, which is well known both at home and abroad. It has the advantages of low phosphorus, low sulfur and high mechanical performance. It can meet the requirements of users.
- Q: How are steel pipes used in the construction of hydroelectric power plants?
- Steel pipes are used in the construction of hydroelectric power plants for various purposes, such as transporting water, containing and directing the flow of water, and supporting the weight of turbines and other equipment. They are typically used for penstocks, which are large pipes that carry water from the dam to the turbines, and for discharge pipes that release water back into the river. The strength and durability of steel pipes make them ideal for withstanding the high pressure and heavy loads involved in hydroelectric power generation.
- Q: How are steel pipes used in the manufacturing of food and beverage processing plants?
- Steel pipes are commonly used in food and beverage processing plants for various purposes such as transporting liquids, gases, and steam. They are used to create a network of pipelines that facilitate the movement of raw materials, ingredients, and finished products throughout the manufacturing process. Steel pipes are chosen for their durability, corrosion resistance, and ability to withstand high pressure and temperature conditions, ensuring the safety and efficiency of food and beverage production.
- Q: Are steel pipes resistant to impact or external forces?
- Steel pipes are renowned for their resistance to impact and external forces. Their high strength and durability render them perfect for a wide range of applications, notably in the realm of piping. These pipes possess the remarkable ability to endure external forces, encompassing impact, pressure, and vibrations. Consequently, industries necessitating steadfast and robust piping systems, like oil and gas, construction, and infrastructure, frequently opt for steel pipes. Furthermore, when confronted with extreme conditions, steel pipes are less prone to cracking or breaking in comparison to other materials. Nonetheless, the extent of resistance to impact and external forces may hinge upon the specific grade and thickness of the steel employed in the pipes.
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SPIRAL STEEL PIPE 38’‘ ASTM API LARGE DIAMETER PIPE
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 3000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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