Steel Pipe -- Welding Steel Tube Suppliers
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 9000 m.t./month
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1、Structure of Steel Pipe -- Welding Steel Tube Suppliers
Welded Steel Pipe is to be used for conveying gas, water, and petroleum foroil and natural gas industries. And used for structural steel pies purpose. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. Historically seamless pipe was regarded as withstanding pressure better than other types, and was often more easily available than welded pipe.
2、Main Features of Steel Pipe -- Welding Steel Tube Suppliers
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、Steel Pipe -- Steel Pipe -- Welding Steel Tube Suppliers：
Standard | GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007 |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 8 - 33 mm |
Section Shape | Round |
Outer Diameter | 133 - 219 mm |
Place of Origin | Shandong, China (Mainland) |
Secondary Or Not | Non-secondary |
Application | Hydraulic Pipe |
Technique | Cold Drawn |
Certification | API |
Surface Treatment | factory state or painted black |
Special Pipe | API Pipe |
Alloy Or Not | Non-alloy |
Length | 5-12M |
Outer Diameter | 21.3-610mm |
Grade | 20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B |
Standard | ASME, ASTM |
1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.
2) Specification range:OD:21.3-610mm,WT:6-70mm,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 Steel Pipe -- Welding Steel Tube Suppliers
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 chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent 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 no problem.
6、Steel Pipe -- Welding Steel Tube Suppliers: Images：
- Q:What are the safety precautions when working with steel pipes?
- When working with steel pipes, some important safety precautions to follow include wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots to protect against potential injuries. Additionally, it is essential to ensure proper ventilation in the work area to prevent the accumulation of hazardous fumes or gases. Using the correct tools and equipment, such as pipe wrenches and clamps, and following proper lifting techniques are crucial to avoid strains or back injuries. Regular inspection and maintenance of the pipes and equipment are also necessary to prevent any potential accidents. Lastly, it is important to receive proper training and follow established safety procedures to minimize risks and promote a safe working environment.
- Q:What is the minimum temperature that steel pipes can handle?
- The minimum temperature that steel pipes can handle depends on the specific grade and composition of the steel. Generally, steel pipes can handle extremely low temperatures without experiencing any significant issues. In fact, many types of steel are specifically designed to withstand extremely cold temperatures, making them suitable for various applications in industries such as oil and gas, construction, and cryogenics. However, it is important to note that at extremely low temperatures, steel may become more brittle, which can affect its mechanical properties. Therefore, it is essential to carefully select the appropriate grade of steel and consider any specific requirements or limitations for the intended application when determining the minimum temperature that steel pipes can handle.
- Q:How are steel pipes coated to prevent corrosion?
- To prevent corrosion, steel pipes can be coated using different methods and materials. One common approach is to apply a protective layer of paint or epoxy on the pipe's surface. This coating acts as a barrier between the steel and the external environment, preventing direct contact with moisture and corrosive substances. Another technique involves galvanization, where the steel pipes are coated with a layer of zinc. Zinc is highly resistant to corrosion and acts as a sacrificial anode. In case of any damage to the coating, the zinc corrodes instead of the steel, ensuring the steel remains intact and free from corrosion. Polyethylene or polypropylene materials can also be fused onto the steel surface, creating a strong bond that provides excellent resistance against corrosion. This method, known as fusion bonding, is commonly used in offshore and underground pipelines. Moreover, a layer of corrosion-resistant alloy can be applied to the steel pipe. This alloy is typically a combination of metals such as nickel, chromium, and molybdenum, which offer superior protection against corrosion in harsh environments. The choice of coating method depends on factors like operating conditions, the presence of corrosive substances, and the expected lifespan of the steel pipes. By effectively applying these coatings, steel pipes can be safeguarded against corrosion, extending their durability and ensuring the integrity of the infrastructure they are used in.
- Q:Are steel pipes suitable for offshore drilling platforms?
- Steel pipes have been widely used in offshore drilling platforms because of their strength, durability, and resistance to corrosion. These platforms operate in harsh marine environments, where they are exposed to saltwater, extreme pressure, and temperature changes. Steel pipes are capable of enduring these conditions and serving as a reliable and long-lasting solution for transporting fluids, such as oil and gas, from the seabed to the surface. Moreover, the ability to weld steel pipes together facilitates their easy installation and maintenance on offshore drilling platforms. In conclusion, steel pipes have proven to be an appropriate choice for offshore drilling platforms due to their robustness and ability to withstand the challenging conditions of the marine environment.
- Q:Are steel pipes resistant to UV radiation?
- Yes, steel pipes are generally resistant to UV radiation. UV radiation is known to cause damage to materials over time, such as fading, discoloration, and degradation. However, steel pipes are typically coated with protective layers, such as paint or galvanization, which help to shield them from UV radiation. These coatings act as a barrier, preventing the direct exposure of steel to UV rays and minimizing the potential for damage. Additionally, the inherent properties of steel, including its strength and durability, make it less susceptible to the effects of UV radiation compared to other materials like plastics or rubber. However, it is important to note that prolonged exposure to intense UV radiation can still have some impact on steel pipes, such as slight discoloration or surface degradation. Regular maintenance and inspection are recommended to ensure the continued performance and longevity of steel pipes in outdoor or UV-exposed environments.
- Q:How are steel pipes protected against fire?
- Steel pipes are protected against fire through various methods such as applying intumescent coatings, using fire-resistant insulation, or encasing them in fire-rated enclosures. These measures help to delay the heat transfer and maintain the structural integrity of the pipes during a fire, allowing them to withstand high temperatures and prevent the spread of fire.
- Q:What is the difference between steel pipe and ductile iron pipe?
- The main difference between steel pipe and ductile iron pipe lies in their composition and properties. Steel pipe is made from a combination of iron and carbon, while ductile iron pipe is made from iron with added graphite and other elements to enhance its strength and ductility. Ductile iron pipe is typically stronger and more flexible than steel pipe, making it better suited for applications where durability and resistance to external forces are important. Additionally, ductile iron pipe is less susceptible to corrosion compared to steel pipe, making it a preferred choice in environments with high moisture or corrosive elements.
- Q:What are the different testing methods used for steel pipes?
- To ensure the quality and reliability of steel pipes, various testing methods are employed. These methods include: 1. Non-destructive Testing (NDT): Ultrasonic testing, magnetic particle inspection, and liquid penetrant testing are utilized in NDT to identify surface or subsurface defects in steel pipes without causing any damage. 2. Mechanical Testing: Mechanical testing encompasses various tests to evaluate the mechanical properties of steel pipes, such as tensile strength, yield strength, elongation, hardness, and impact resistance. These tests determine the structural integrity and performance of the pipes. 3. Hydrostatic Testing: This method involves subjecting steel pipes to high-pressure water to assess their ability to withstand expected operating conditions. The pipes are filled with water and pressurized to a predetermined level for a specified duration. Any leaks or deformations are detected during this test. 4. Dimensional Inspection: This testing method ensures that steel pipes meet specified dimensional requirements. It involves measuring critical dimensions such as diameter, wall thickness, and length to verify compliance with applicable standards. 5. Visual Inspection: Trained inspectors visually assess the external appearance of steel pipes using this basic method. They examine the pipes for surface defects such as cracks, corrosion, or irregularities in shape or finish. 6. Chemical Analysis: Chemical analysis is conducted to determine the composition and elemental content of steel pipes. It ensures that the pipes are made from the correct grade of steel and meet required chemical composition standards. 7. Metallographic Examination: Metallography involves examining the microstructure of steel pipes under a microscope to evaluate their quality and integrity. It helps identify internal defects like grain boundaries, inclusions, or improper heat treatment that may impact overall performance. By employing these testing methods, manufacturers and inspectors can guarantee that steel pipes meet necessary quality standards and are suitable for their intended applications.
- Q:How do you prevent steel pipes from freezing?
- To avoid freezing of steel pipes, there are several actions that can be taken: 1. Insulate the pipes: Utilize foam insulation sleeves or wrap the pipes with insulation tape. This will help maintain the temperature of the pipes and prevent freezing. 2. Seal any gaps or cracks: Examine the area surrounding the pipes and seal any gaps or cracks using caulk or expanding foam. This will prevent cold air from entering and causing freezing. 3. Install heat cables: Wrap heat cables around the steel pipes to provide a constant source of warmth. These cables can be controlled by a thermostat, ensuring that the pipes remain above freezing temperature. 4. Maintain above-freezing temperature: In regions with severe cold weather, it is recommended to keep the indoor temperature above freezing, even if the property is unoccupied. This will help maintain a suitable temperature for the pipes and prevent freezing. 5. Open cabinets and faucets: During extremely cold weather, open cabinet doors in kitchens and bathrooms to allow warm air to circulate around the pipes. Additionally, allowing faucets to drip slightly can keep water flowing and prevent freezing. 6. Drain the pipes: If the property will be vacant during freezing weather, it is advisable to completely drain the pipes. This can be achieved by shutting off the main water supply and opening all faucets until no water remains. This minimizes the risk of freezing and potential damage. Remember, taking preventive measures is vital in safeguarding steel pipes against freezing. By implementing these actions, you can significantly reduce the chances of frozen pipes and costly repairs.
- Q:Can steel pipes be used for heat transfer applications?
- Heat transfer applications can utilize steel pipes as they are a great option for transferring thermal energy from one location to another. Steel is known for its excellent heat conductivity, making it a popular choice in heating, ventilation, and air conditioning (HVAC) systems, industrial process heating, and steam distribution networks. The high thermal conductivity of steel ensures efficient heat transfer, effectively distributing heat throughout the system. Moreover, steel pipes possess remarkable strength and durability, enabling them to withstand high temperatures and pressures commonly encountered in heat transfer applications. In summary, steel pipes are a dependable and extensively employed solution for heat transfer purposes.
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Steel Pipe -- Welding Steel Tube Suppliers
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 m.t.
- Supply Capability:
- 9000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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