SHS RHS CHS square hollow section rectangular hollow section circular hollow section pipe & tube
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 22 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Standard:
GB
Technique:
Cold Rolled,Cold Drawn,ERW,Extruded,Hot Rolled
Shape:
Square,Round,Rectangular,Oval
Surface Treatment:
Galvanized,Black
Steel Grade:
Q195,Q235,Q355
Thickness:
0.15-20mm
Length:
1-12m or customized
Net Weight:
0.625-171.658kg/m
We supply ms equal & unequal angle bar, channel bar,jis channel, upn, steel i beam,h beam, ipe, ipeaa, steel sheet pile, flat bar, hollow section, tmt bar, wire rod, binding wire, wire mesh, hrc, CRC, gi coil, ppgi, roofing sheet, chequered coil & plates, medium plate, scaffolding systems, prefabricated container houses etc. Also for metal & steel processing.
If you are in the market for any steel products, please feel free to contact rcjs steel.
| Type | cold rolled pre-galvanized welded square/rectangular steel pipe/tube/hollow section prefab house steel pipe |
| Diameter | 10mm-600mm or as customized |
| Wall Thickness | 0.1mm-300mm or as required |
| Length | 2-12m or as request |
| Standard | ASTM A53, BS 1387, BS 1139, BS En10025, etc. |
| Steel Grade | Q195 = S195 / A53 Grade AQ235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2Q345 = S355JR / A500 Grade B Grade C |
| Surface Treatment | Bared, Black Painted, Galvanized, Oiled or to your requirements |
| Technique | Welded |
| Package | Packed in Bundles with Two Nylon Strip. |
| Application | 1. Fluid pipe 2. Power Plant 3. Structure pipe 4. High and low-pressure Boiler tube 5. Seamless pipe /tube for petroleum cracking 6. Conduit pipe 7. Scaffolding pipe pharmaceutical andship, building etc. |
| Advantages | Competitive price, High-quality products, 24-hour after-sales service |
| Port | Tianjin |
| Currency | USD, CNY, etc. |
| Payment | T/T, L/C, D/P, etc |
- Q: How do you inspect steel pipes for defects?
- The inspection of steel pipes for defects requires a methodical approach that combines visual examination, non-destructive testing (NDT) techniques, and specialized equipment. The following are the typical steps undertaken to inspect steel pipes for defects: 1. Visual Examination: Commence by visually inspecting the external surface of the pipe, searching for any visible indications of defects, including cracks, dents, or corrosion. Particular attention should be given to welds, joints, and areas prone to stress or damage. 2. Ultrasonic Testing (UT): Ultrasonic testing is commonly employed to identify internal defects in steel pipes. This technique involves transmitting ultrasonic waves into the pipe and then interpreting the echoes received. Any irregularities in the internal structure, such as cracks or voids, can be identified and analyzed. 3. Magnetic Particle Inspection (MPI): MPI is a widely utilized technique for detecting defects on or near the surface, such as cracks, seams, or other discontinuities. This method involves applying a magnetic field to the pipe and subsequently applying ferromagnetic particles (usually iron-based) to the surface. These particles accumulate and form visible indications at areas where magnetic flux leakage is caused by defects. 4. Eddy Current Testing (ECT): Eddy current testing is suitable for detecting surface and near-surface defects in conductive materials like steel. This technique involves inducing an alternating current into the pipe and monitoring changes in the electrical currents induced by any present defects. These changes are then analyzed to identify and evaluate the defects. 5. Radiographic Testing (RT): Radiographic testing is conducted by exposing the steel pipe to X-rays or gamma rays and capturing radiographic images of the pipe. This technique allows for the detection of internal defects, such as cracks, porosity, inclusions, or variations in wall thickness. The radiographic images are subsequently examined for any indications of defects. 6. Dye Penetrant Inspection (DPI): DPI is a method used to identify defects on the surface of steel pipes. It involves applying a liquid dye to the surface, which penetrates into any surface cracks or flaws. After sufficient time for the dye to seep in and react, excess dye is removed, and a developer is applied to draw out the dye from the defects, rendering them visible. 7. Pressure Testing: Pressure testing entails pressurizing the steel pipe to a predetermined level and monitoring for any pressure drops or leaks. This test ensures that the pipe can withstand the required pressure without any structural defects. It is worth noting that the choice of inspection technique depends on various factors, such as the type of defect being sought, the size and characteristics of the pipe, and the specific industry standards and regulations. Inspection professionals with expertise in NDT methods and equipment are typically employed to ensure precise and dependable results.
- Q: What is the dimensional stability of steel pipes?
- The dimensional stability of steel pipes refers to their ability to maintain their shape and size under different conditions and over time. Steel pipes are known for their excellent dimensional stability, as they are highly resistant to deformation, warping, and expansion or contraction caused by temperature variations or external forces. This stability is attributed to the inherent strength and rigidity of steel, making it a reliable choice for various applications where maintaining precise dimensions is crucial.
- Q: What is the flexibility of steel pipes?
- Steel pipes are known for their exceptional flexibility, making them highly versatile and suitable for a wide range of applications. The flexibility of steel pipes refers to their ability to bend and withstand various forms of stress without breaking or deforming. This flexibility is primarily due to the inherent properties of steel, such as its high tensile strength and ductility. Steel pipes can be bent and formed into different shapes without compromising their structural integrity. This allows for easier installation and routing around obstacles, making them more adaptable for complex plumbing or piping systems. Additionally, the flexibility of steel pipes enables them to withstand external forces, such as ground movements or temperature fluctuations, without experiencing significant damage. The flexibility of steel pipes also makes them suitable for applications that require dynamic movement or expansion. For instance, in oil and gas pipelines or in heating and cooling systems, where temperature variations can cause expansion and contraction, steel pipes are able to accommodate these changes without causing leaks or failures. Furthermore, the flexibility of steel pipes contributes to their durability and longevity. The ability to withstand bending and stress helps prevent the formation of cracks or fractures that can lead to leaks or structural failures. This characteristic makes steel pipes a reliable choice for demanding environments, including high-pressure systems or corrosive conditions. In summary, the flexibility of steel pipes is a crucial attribute that allows for easy installation, adaptability to various conditions, and long-term reliability. With their exceptional flexibility, steel pipes are widely preferred in numerous industries and applications where strength, durability, and versatility are essential.
- Q: How are steel pipes measured and specified?
- Steel pipes are measured and specified based on their diameter (nominal pipe size or NPS) and wall thickness (schedule or SCH). The NPS represents the internal diameter of the pipe, while the SCH indicates the thickness of the pipe walls. These measurements are crucial for ensuring proper compatibility and functionality in various applications, such as plumbing, construction, and industrial processes.
- Q: How are steel pipes used in hydroelectric power plants?
- Steel pipes are used in hydroelectric power plants to transport water from the reservoir to the turbines. These pipes are designed to withstand high pressure and are often used for penstocks, which are large vertical pipes that deliver water to the turbines at a controlled rate. The durability and strength of steel pipes make them ideal for withstanding the force of the flowing water and ensuring a reliable water supply for power generation.
- Q: What's the difference between stainless steel seamless tube and stainless steel welded pipe?
- Stainless steel seamless pipe featuresFirst, the product of the wall is thicker, it is more economical and practical, the wall thickness of the thinner, processing costs will be substantially increased it; secondly, the product process to determine its performance limitations, generally low precision seamless steel pipe: uneven thickness, tube inner surface brightness low and high cost of fixed length, and the inner surface pitting and black spots difficult to remove; the detection and plastic third, must be processed offline. Therefore, it has its advantages in high pressure, high strength, mechanical structure and timber.
- Q: Can steel pipes be used for gas lines?
- Yes, steel pipes can be used for gas lines. Steel pipes are commonly used for gas lines due to their durability, strength, and resistance to extreme temperatures. They are able to withstand high pressure and are typically coated with corrosion-resistant materials to ensure the safety and longevity of the gas line system.
- Q: Can steel pipes be used for conveying slurries or abrasive materials?
- Yes, steel pipes can be used for conveying slurries or abrasive materials. Steel pipes are known for their strength and durability, making them suitable for handling heavy-duty applications. They are resistant to wear, corrosion, and impact, which makes them ideal for conveying abrasive materials or slurries that contain solids or particles. Additionally, steel pipes can withstand high pressure and maintain their structural integrity, ensuring the safe and efficient transportation of slurries or abrasive materials.
- Q: Can steel pipes be used for conveying solid materials?
- Yes, steel pipes can be used for conveying solid materials. Steel pipes are commonly used in industries such as construction, oil and gas, and mining to transport solid materials such as ores, coal, grains, and various other solid substances. The durability and strength of steel make it suitable for handling the weight and pressure of solid materials during transportation.
- Q: Can steel pipes be bent or shaped to meet specific requirements?
- Yes, steel pipes can be bent or shaped to meet specific requirements through various techniques such as hot bending, cold bending, or using specialized machinery like pipe benders.
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SHS RHS CHS square hollow section rectangular hollow section circular hollow section pipe & tube
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 22 m.t.
- Supply Capability:
- 10000 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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