SPIRAL STEEL PIPE 32’‘ 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 | <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 internal corrosion?
- Steel pipes are protected against internal corrosion through various methods, such as applying protective coatings or linings to the inner surface of the pipes. These coatings act as a barrier between the steel surface and the corrosive elements present in the transported fluids. Additionally, cathodic protection can be employed, where a sacrificial anode or an impressed current system is used to prevent corrosion by diverting the electrical current away from the steel surface. Regular maintenance and monitoring are also crucial to ensure the ongoing protection of steel pipes against internal corrosion.
- Q:What is the hardness of steel pipes?
- The hardness of steel pipes varies depending on the specific grade and manufacturing process used. However, steel pipes are generally known for their high hardness and durability, as they are often designed to withstand heavy loads, abrasive environments, and high-pressure conditions.
- Q:How do you calculate the weight of a steel pipe?
- In order to determine the weight of a steel pipe, one must possess knowledge of the pipe's dimensions, specifically the outer diameter (OD), wall thickness, and length. Initially, one must ascertain the cross-sectional area of the pipe. This can be accomplished by subtracting the inner diameter (ID) from the outer diameter (OD) and dividing the outcome by 2 to acquire the radius. Subsequently, the formula A = πr^2 can be employed to compute the area. Following this, it is necessary to multiply the cross-sectional area by the length of the pipe to obtain the volume. The formula for volume is V = A * L, where A denotes the cross-sectional area and L signifies the length. Lastly, to determine the weight of the steel pipe, one must multiply the volume by the density of steel. The density of steel generally falls 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 represents the volume and ρ denotes the density of steel. It is crucial to note that if one is employing different units, a conversion is imperative to match the units of the density. For instance, if the length is in feet and the density is in pounds per cubic inch, the length must be converted to inches prior to conducting the calculations. Always remember to thoroughly verify your measurements and calculations to ensure precision.
- Q:What is the purpose of pipe flanges in steel pipes?
- The purpose of pipe flanges in steel pipes is to provide a secure and leak-proof connection between two pipes or to other equipment, such as valves or pumps. Flanges allow for easy assembly and disassembly of pipe sections, as well as providing a means for maintenance and repairs. Additionally, they provide a stronger connection, ensuring the integrity and stability of the pipeline system.
- Q:Are steel pipes affected by magnetic fields?
- Indeed, magnetic fields can have an impact on steel pipes. Steel, being a ferromagnetic material, is strongly attracted to magnets and can be magnetized. When exposed to a magnetic field, steel pipes can become magnetized themselves, exhibiting magnetic behavior. This magnetic phenomenon can have several implications. Firstly, when steel pipes are in proximity to robust magnetic fields, like those generated by electrical currents or powerful magnets, they may experience a force that could cause them to move or vibrate. This can pose challenges in certain applications, particularly if the pipes need to remain stable and secure. Secondly, the presence of magnetic fields can induce electrical currents in steel pipes. These currents, known as eddy currents, can result in heat generation and energy losses. In some instances, this can lead to inefficiencies and increased energy consumption in systems involving steel pipes. Lastly, magnetic fields can also influence the accuracy of magnetic measurement devices utilized to identify defects or corrosion in steel pipes. The presence of a magnetic field can interfere with the readings, making it more difficult to precisely assess the condition of the pipes. To mitigate these effects, various measures can be implemented. For example, in applications where stability is of utmost importance, steel pipes can be shielded or isolated from strong magnetic fields using non-magnetic materials. Additionally, the impact of eddy currents can be minimized by employing pipes with proper insulation or by utilizing magnetic shielding techniques. In conclusion, while magnetic fields do affect steel pipes, the extent of the impact depends on factors such as the strength of the magnetic field, the composition of the steel, and the specific application or environment in which the pipes are utilized.
- 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.
- Q:What's the difference between hot-rolled seamless steel tube and cold-rolled seamless steel tube?
- Hot rolled seamless tubes are divided into ordinary steel tubes, low and medium pressure boiler tubes, high pressure boiler tubes, alloy steel tubes, stainless steel pipes, oil cracking pipes, geological steel pipes and other steel pipes, etc..
- Q:Can steel pipes be used for underground gas storage?
- Certainly! Underground gas storage can indeed utilize steel pipes. Steel pipes are frequently employed in the transportation and storage of diverse gas varieties, such as natural gas, owing to their robustness, longevity, and ability to resist corrosion. These pipes can endure substantial pressures and can be tailored to meet the specific prerequisites of subterranean gas storage installations. Furthermore, materials can be applied to the surfaces of steel pipes, either as a coating or lining, to bolster their resistance to corrosion and avert any possible leaks. Nevertheless, it is crucial to ensure that the correct safety protocols and regulations are adhered to during the construction and operation of underground gas storage facilities to prevent any potential perils or hazards.
- Q:Are steel pipes suitable for underground nuclear waste storage?
- Underground nuclear waste storage does not lend itself to the use of steel pipes due to their unsuitability. Despite their strength and durability, steel pipes are susceptible to corrosion when in contact with certain forms of nuclear waste. As time passes, the radioactive elements can corrode the steel pipes, potentially leading to leaks and the contamination of the surrounding environment. Furthermore, steel pipes lack the necessary design to endure the extreme temperatures and pressures commonly found in nuclear waste storage facilities. Consequently, alternative materials like corrosion-resistant alloys or concrete are generally employed for underground nuclear waste storage to guarantee the confinement and isolation of hazardous substances.
- Q:Can steel pipes be used in plumbing systems?
- Yes, steel pipes can be used in plumbing systems. Steel pipes are commonly used for plumbing installations due to their durability, strength, and resistance to corrosion. They are often preferred for larger water supply lines and can handle high pressure and temperature conditions. However, steel pipes require proper insulation to prevent heat loss and are typically more expensive than alternative materials like PVC or copper pipes.
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SPIRAL STEEL PIPE 32’‘ 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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