SPIRAL WELDED STEEL PIPE 16/18/20/22'' CARBON
- 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 |
Packaging & Delivery
Packaging Detail: | Normal exporting packing,in container or bulk vessel or as per clients' request |
Delivery Detail: | 2 months after confimed contract |
Specifications
Large Diameter API 5L X70 PSL2 LSAW Steel Pipe
Grade: X42, X46, X50, X52, X60, B, C
OD: 1.5"-28"
WT: SCH10-SCH160
Brand:TPCO
Large Diameter API 5L X70 PSL2 LSAW Steel Pipe
Specifications:
u Standard: API 5L
u Grade: B, C, X42, X46, X50, X52, X56, X60, X65, X70, X80
u OD: 1.5"-28"
u WT: SCH10-SCH160
u Length: 5-12m
u Ends Finish: plain end, bevel end, grooved end
u Surface Treatment: bare, black varnished, oiled finish, red color, anti-corrosion, 3PE, FBE or epoxy coating
u Technique: hot rolled or cold drawn
u Application: api 5l steel pipe for conveying oil, water, gas
u Invoicing: based on theoretical weight or actual weight
u Payment Terms: L/C at sight, T/T or Western Union
u Trade Terms: FOB, CFR, CIF
u Certification: ABS manufacturing assessment, ABS design assessment, API 5CT, API 5L, DNV manufacturer certificate, ISO9001 quality management system certificate, ISO14001 environment management system certificate, GB/T28001 occupational health and safety management system certificate, A1 class manufacturing license of special equipment certificate, CCS, GL, LR, SGS, TüV, PDE
- Q: How are steel pipes used in building foundations?
- Steel pipes are often used in building foundations as piles or piers. They are driven into the ground to provide structural support and stability for the building. The steel pipes act as load-bearing elements, transferring the weight of the structure to the underlying soil or rock. Additionally, they can also be utilized for underground utility installations or as part of a drainage system in building foundations.
- Q: How are steel pipes used in the manufacturing of shipbuilding and offshore structures?
- Steel pipes are essential components in the manufacturing of shipbuilding and offshore structures. They are widely used due to their strength, durability, and resistance to corrosion, making them ideal for the harsh marine environment. In shipbuilding, steel pipes are used for various purposes. One of the main applications is in the construction of the hull, the framework that provides structural support to the ship. Steel pipes are used to form the keel and the frames, which help to maintain the shape and strength of the hull. These pipes are welded together to create a robust and rigid structure that can withstand the forces exerted on the ship during navigation. Moreover, steel pipes are used in the construction of various systems onboard the ship. For instance, they are utilized in the piping system for transporting fluids like fuel, water, and oil throughout the vessel. Steel pipes are also employed in the ventilation and air conditioning systems, ensuring proper airflow and temperature control within the ship. In offshore structures, such as oil rigs and platforms, steel pipes play a crucial role. These structures are typically subjected to extreme environmental conditions, including severe weather, high pressure, and corrosive saltwater. Steel pipes are used to fabricate the legs, risers, and other load-bearing components of offshore structures. These pipes provide the necessary strength and stability, allowing the structure to withstand the forces exerted by waves, wind, and drilling operations. Additionally, steel pipes are utilized in the construction of subsea pipelines. These pipelines are used to transport oil, gas, and other fluids from offshore drilling sites to onshore facilities. Steel pipes are preferred due to their high tensile strength and ability to withstand the high pressure and corrosive conditions found in subsea environments. Overall, steel pipes are indispensable in the manufacturing of shipbuilding and offshore structures. Their exceptional strength, durability, and corrosion resistance make them the preferred choice for constructing hulls, systems, and load-bearing components. Without steel pipes, the construction of ships and offshore structures would be significantly compromised in terms of safety, reliability, and longevity.
- Q: How do you calculate the bending moment of a steel pipe?
- The bending moment of a steel pipe can be calculated using the formula M = F * d, where M is the bending moment, F is the applied force, and d is the distance from the neutral axis to the point where the bending moment is being calculated.
- Q: How are steel pipes used in the construction of buildings?
- Steel pipes are commonly used in the construction of buildings for various purposes such as structural support, plumbing, and electrical installations. They provide strength and durability, allowing for the construction of high-rise buildings and large-scale structures. Steel pipes are used to create the framework of the building, forming the skeleton that supports the weight and load of the structure. Additionally, steel pipes are used for plumbing systems, effectively transporting water and sewage throughout the building. They are also used for electrical installations, providing a safe and efficient conduit for wiring. Overall, steel pipes play a crucial role in the construction of buildings, ensuring stability, functionality, and longevity.
- Q: What are the factors that affect the lifespan of steel pipes in different environments?
- The factors that affect the lifespan of steel pipes in different environments include the pH level of the surrounding soil or water, presence of corrosive chemicals, humidity and moisture levels, exposure to extreme temperatures, mechanical stress or pressure, and the quality of protective coatings or corrosion inhibitors applied to the pipes.
- Q: Can steel pipes be used for structural supports in buildings?
- Yes, steel pipes can be used for structural supports in buildings. Steel pipes are commonly used in construction due to their high strength, durability, and ability to withstand heavy loads. They provide excellent structural support, especially in applications that require long spans or high load-bearing capacities. Additionally, steel pipes are resistant to corrosion and can be easily connected or welded, making them a popular choice in building construction.
- Q: How do you prevent corrosion in steel pipes?
- One effective way to prevent corrosion in steel pipes is by applying a protective coating, such as paint or epoxy, to the surface of the pipes. This barrier creates a physical barrier between the pipe and the surrounding environment, preventing moisture and corrosive agents from coming into direct contact with the steel. Additionally, regular inspection and maintenance of the pipes, including cleaning and repairing any damaged coating, can help identify and address potential issues before they lead to corrosion.
- Q: Can steel pipes be used for geothermal applications?
- Yes, steel pipes can be used for geothermal applications. Steel is a durable and strong material that can withstand high temperatures and pressures typically found in geothermal systems. It is commonly used for drilling wells and transporting geothermal fluids, making it a suitable choice for geothermal applications.
- Q: What is the difference between steel pipes and concrete-lined pipes?
- The main difference between steel pipes and concrete-lined pipes lies in their composition and protective features. Steel pipes are typically made entirely of steel, providing strength and durability. On the other hand, concrete-lined pipes consist of a steel pipe coated with a layer of concrete. This lining offers additional protection against corrosion and abrasion. While steel pipes are more suitable for high-pressure applications and offer better resistance to external factors, concrete-lined pipes are commonly used in wastewater systems to prevent corrosion and extend the lifespan of the pipe.
- Q: How are steel pipes protected against internal scaling?
- Steel pipes are protected against internal scaling through a process called internal coating or lining. This involves the application of a protective layer on the interior surface of the pipe to prevent the formation of scales or deposits. There are several methods used for this purpose. One common method is the application of epoxy coatings. Epoxy is a durable and corrosion-resistant material that forms a continuous barrier on the inside of the pipe. It helps to prevent the accumulation of minerals and other substances that can lead to scaling. Epoxy coatings are often applied by spraying or brushing onto the pipe's interior surface and then cured to form a hard and smooth finish. Another method used for protecting steel pipes against internal scaling is cement mortar lining. In this process, a layer of cement mortar is applied to the inside of the pipe. The cement mortar acts as a barrier against scaling and also provides additional protection against corrosion. This lining process is commonly used for large-diameter pipes that are used in water distribution systems. Polyethylene (PE) lining is another technique employed to protect steel pipes from internal scaling. PE lining involves the insertion of a high-density polyethylene liner into the pipe. This liner acts as a barrier against scaling and also helps to reduce friction, improving the flow of fluids through the pipe. PE lining is often used in applications where a smooth interior surface is required, such as in oil and gas pipelines. In addition to these methods, regular maintenance and cleaning of the pipes can also help prevent internal scaling. This may involve the use of chemical cleaning agents or mechanical cleaning techniques to remove any deposits that have formed on the pipe's interior surface. Overall, protecting steel pipes against internal scaling is crucial to maintain their efficiency and prolong their lifespan. By utilizing various coating and lining methods, as well as implementing proper maintenance practices, the risk of internal scaling can be significantly reduced.
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SPIRAL WELDED STEEL PIPE 16/18/20/22'' CARBON
- 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
OKorder Financial Service
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