ASME API 5L GI Carbon Square Steel Pipes
- Ref Price:
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- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Product Description:
1、Structure of Hollow Section Steel Pipe Various Size:
The square tubes are used in structural projects, shelves, racks, trailers and in ornamental purpose. The framework made by square steel tubes, is used for providing support to the roof. This framework is also used as roof top ventilation baffles. With compare to round steel tubes, square steel tubes are little more efficient. To be used for construction, furniture structures as well as other fabrication purposes. It is widely used in building, machine, chemical equipment, automobile industrial, container, it is also applied to agriculture and mine machine.
2、Main Features of Hollow Section Steel Pipe Various Size:
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、Hollow Section Steel Pipe Various Size Specification：
Standard | ASTM A500, GB6728 |
Grade | A, B, C, Q195, Q235, Q215 |
Thickness | 0.6-10MM |
Section Shape | Square |
Outer Diameter | 10*10-500*500 |
Place of Origin | TIANJIN, China (Mainland) |
Secondary Or Not | Non-secondary |
Application | Hydraulic Pipe |
Technique | HOT-ROLLED |
Certification | CO, MTC, CI, PL |
Surface Treatment | factory state or painted black |
Special Pipe | |
Alloy Or Not | Non-alloy |
Length | 5-12M |
Outer Diameter | 10*10-500*500 |
1) Material: A, B, C, Q195, Q235, Q215
2) Specification range: 10*10-500*500 WT:0.6-10MM ,length:6-12m or according to the requirement of clients.
3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing.
4、Packaging & Delivery
Packaging Details: | seaworthy package,bundles wrapped with strong steel strip |
Delivery Detail: | 15-30days after received 30%TT |
5、FAQ of Hollow Section Steel Pipe Various Size:
①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.
③Why should you choose us?
Choice happens because of our quality and price. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), fast goods delivery, outstanding customer solution proposals. Our service formula: good quality + good price + good service=customer’s trust.
SGS test is available. Customer inspection before shipping is welcome. Third party inspection is OK.
6、Hollow Section Steel Pipe Various Size Images：
- Q:What are the common defects found in steel pipes?
- Some common defects found in steel pipes include corrosion, cracks, pitting, scaling, and distortion.
- Q:How are steel pipes protected against electromagnetic interference?
- Steel pipes can be protected against electromagnetic interference by applying a layer of insulating material around the pipes or by utilizing electromagnetic shielding techniques such as wrapping the pipes with conductive materials. Additionally, grounding the pipes and implementing proper grounding practices can help minimize the impact of electromagnetic interference.
- Q:How do you calculate the pipe flow velocity for steel pipes?
- To determine the velocity of flow in steel pipes, two equations can be utilized: Manning's formula or the Darcy-Weisbach equation. 1. Manning's formula, commonly applied to open channel flow but also suitable for partially filled pipes, calculates velocity based on the pipe's hydraulic radius, slope, and Manning's roughness coefficient. The formula is as follows: Velocity (V) = (1.486/n) * (R^2/3) * (S^1/2) In this formula: - V represents the velocity - n denotes the Manning's roughness coefficient (obtainable from reference tables) - R signifies the hydraulic radius (cross-sectional area divided by wetted perimeter) - S indicates the slope of the energy grade line 2. The Darcy-Weisbach equation, widely used for pipe flow calculations, derives velocity from the pipe's diameter, roughness coefficient, and head loss due to friction. The equation is as follows: Velocity (V) = (2 * g * hL)^0.5 In this equation: - V represents the velocity - g stands for the acceleration due to gravity (approximately 9.81 m/s^2) - hL refers to the head loss caused by friction, which can be calculated using the Darcy-Weisbach equation: hL = (f * L * V^2) / (2 * g * D) In this equation: - f denotes the Darcy friction factor (dependent on the Reynolds number and pipe roughness) - L represents the length of the pipe - D indicates the diameter of the pipe Both formulas necessitate input parameters such as pipe dimensions, roughness coefficients, and slope. These parameters can be obtained from engineering references or pipe manufacturer specifications. It is essential to note that these formulas provide approximate values and may require iterations or adjustments for precise outcomes.
- Q:How do you prevent steel pipes from rusting?
- Various measures can be taken to prevent the rusting of steel pipes. One effective method is the application of a protective coating on the surface of the pipes. Different types of coatings, such as paint, epoxy, or zinc, can be used for this purpose. These coatings act as a barrier between the steel and the corrosive environment, thereby preventing direct contact between moisture, oxygen, and the metal, which can lead to rust formation. Another approach involves the use of corrosion inhibitors. These substances are added to the water or fluid flowing through the pipes, creating a protective film on the surface of the steel. This film acts as a shield, inhibiting the corrosion process and preventing the formation of rust. Regular maintenance plays a crucial role in preventing rust on steel pipes. It is essential to inspect the pipes regularly for any signs of damage or corrosion and promptly repair or replace any compromised areas. Additionally, keeping the pipes clean and dry by removing accumulated dirt or moisture helps prevent the formation of rust. In some cases, using stainless steel pipes instead of regular steel can be beneficial. Stainless steel contains chromium, which forms a passive oxide layer on the metal's surface. This layer acts as a natural barrier against corrosion, making stainless steel pipes highly resistant to rust. Finally, controlling the installation environment of the pipes can also help prevent rust. This can be achieved by maintaining proper ventilation, controlling humidity levels, and avoiding exposure to harsh chemicals or corrosive substances. By implementing these preventive measures, the lifespan and integrity of steel pipes can be significantly extended, while minimizing the risk of rust formation.
- Q:Can steel pipes be used for transporting gases and liquids?
- Yes, steel pipes can be used for transporting both gases and liquids. Steel pipes are highly durable, corrosion-resistant, and have excellent strength, making them suitable for various applications, including oil and gas pipelines, water supply systems, and industrial processes.
- Q:Can steel pipes be used for transporting slurry?
- Steel pipes can indeed be utilized for the transportation of slurry. They find widespread application in several industries, such as mining, construction, and oil and gas, where they serve the purpose of conveying various types of fluids, including slurry. Slurry, typically comprising solid particles suspended in a liquid, primarily water, poses no challenge for steel pipes, as they possess the necessary robustness and endurance to handle its abrasive characteristics. Moreover, steel pipes exhibit exceptional resistance against corrosion, a crucial factor when confronted with slurry that may contain corrosive elements. Furthermore, the sleek interior surface of steel pipes plays a significant role in minimizing friction and ensuring the smooth and efficient flow of the slurry. In conclusion, steel pipes stand as a dependable and widely preferred option for the transportation of slurry due to their strength, durability, resistance to corrosion, and smooth inner surface.
- Q:What's wrong with the 3PP anticorrosive steel tube?
- That is, polypropylene corrosion resistant coating of steel pipe, the biggest feature of this anti-corrosion coating is good heat resistance.
- Q:How are steel pipes recycled at the end of their life cycle?
- Steel pipes are typically recycled at the end of their life cycle through a process called steel scrap recycling. This involves collecting the used pipes, cleaning them to remove any contaminants, and then shredding or cutting them into smaller pieces. These pieces are then melted down in a furnace to create new steel products, including pipes. The recycled steel pipes are then ready for use in various industries, reducing the need for new production and conserving valuable resources.
- Q:What are the different methods of pipe joining using steel pipes?
- Some of the different methods of pipe joining using steel pipes include butt welding, socket welding, threaded connections, and flange connections.
- Q:What are the different types of pipe coatings used for corrosion protection?
- For corrosion protection, various pipe coatings are utilized to safeguard the exterior surface of pipes, ensuring their durability and integrity. Some commonly employed coatings for this purpose are as follows: 1. Fusion-Bonded Epoxy (FBE) Coatings: Renowned for their remarkable adhesion and resistance to chemicals, moisture, and abrasion, FBE coatings are extensively used. These coatings are applied by heating the pipe and subsequently spraying it with epoxy powder, which solidifies upon cooling, forming a protective layer. 2. Polyethylene (PE) Coatings: PE coatings are highly flexible and exhibit excellent resistance against impact and chemicals. Common application methods for these coatings include extrusion and wrapping, providing exceptional protection against water, soil, and other corrosive substances. 3. Polyurethane (PU) Coatings: PU coatings possess commendable resistance to chemicals, moisture, and mechanical damage. Spraying or brush coating methods are typically employed to apply these coatings, which find frequent usage in underground pipelines. 4. Coal-Tar Enamel Coatings: Coal-tar enamel coatings are suitable for safeguarding pipes exposed to highly corrosive environments like marine conditions or underground settings. Application techniques like hot or cold wrapping are commonly employed, granting exceptional resistance against water, acids, and alkalis. 5. Metallic Coatings: Metallic coatings, including zinc, aluminum, or zinc-aluminum alloys, are frequently adopted as sacrificial coatings to protect the underlying steel pipes. These coatings corrode preferentially, sacrificing themselves to shield the pipe from corrosion. 6. Asphalt Coatings: Asphalt coatings serve as robust barriers against moisture, chemicals, and soil. Typically applied using hot or cold wrapping methods, they are commonly utilized for underground pipelines. To determine the appropriate pipe coating for corrosion protection, it is crucial to consider factors such as the specific environment, temperature, and expected lifespan of the pipes.
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ASME API 5L GI Carbon Square Steel Pipes
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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