STAINLESS STEEL PIPE CHEAP and GOOD QUALITY from CHINA
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 1000 m.t./month
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1，the breif description of the cheap and good quality stainless steel pipe
2,our advantage and specifications
1. Our company has been dedicated to producing stainless steel seamless pipe since 2003, owning complete producing technology and abundant managing experience.
2. The raw material such as mother tube, round bar we use is from Chinese biggest and well-known steel mill: Walsin Steel and Yongxing Steel.
3. We have advanced NDT equipments for the tests such as Eddy Current test, Ultrasonic test, Hydraulic test and so on.
4. We have ISO 9001 and PED certificate, and the Third Party Inspection Certificates such as TUV, BV, Lloyd’s, SGS, etc, also can be provided according to customers’ requirements,
5. Wooden case package which is strong and suitable for sea transportation is our main method to pack the pipes. And the economical packing method such as packed in bundles is also welcomed by some customers.
6. The tolerance control we use is D4/T4 (+/-0.1mm) on both inside and outside Diameter and Wall Thickness, which is much higher than international standard ASTM, DIN.
7. The surface condition is one of our main advantages: in order to meet different requirements for surface condition, we have annealing and pickling surface, bright annealing surface, OD polished surface, OD & ID polished surface etc.
8. In order to keep the inside surface of pipe clean and make it free from deburring, our company develops the unique and special technology --- Sponge Washing with high pressure.
9. We have complete after-sale service to deal with the problems in time.
3,Stainless steel maintenance:
(1) Regular cleaning and maintenance
(2) Pay attention to prevent the occurrence of the phenomenon of surface scratches
(3) Use soap, weak detergent or warm water to remove surface dust, dirt
(4) In addition to the surface of the binder with alcohol or an organic solvent (ether, benzene)
(5) Use neutral detergent or ammonia solution in addition to surface oil
(6) With 10% nitric acid or abrasive detergent in addition to the surface of the embroider caused by the dirt.
4,FAQ
1. Q: What are your advantageous Products?
A: We specialized in 400 series cold rolled stainless steel coils and plates. Our main products are 430, 410S and 409L.
We also supply stainless steel strips and strips in coil as requested.
2. Q: Can you make DDQ ( Deep Drawing Quality)?
A: Yes, we can. Our material can be used for stainless steel pots, stainless steel sinks, stainless steel bowls etc. U can tell us your usage, and we will adjust the mechanical propertise to meet your requirement.
- Q: Can stainless steel pipes be buried in soil?
- Yes, stainless steel pipes can be buried in soil. Stainless steel is highly resistant to corrosion and can withstand the harsh conditions of being buried underground, making it a suitable choice for various underground applications such as drainage, sewage, and water supply systems.
- Q: Can stainless steel pipes be used for steam transportation?
- Indeed, steam transportation can rely on stainless steel pipes. Thanks to its remarkable resistance against corrosion and impressive strength at high temperatures, stainless steel proves to be an appropriate material for carrying steam under intense pressure and temperature circumstances. Moreover, the sleek surface of stainless steel pipes reduces friction, diminishes the likelihood of blockage or buildup, and guarantees the efficiency and dependability of steam transportation. Furthermore, stainless steel's durability allows it to endure harsh conditions, establishing it as the favored option for steam transportation across diverse sectors such as power generation, chemical processing, and oil and gas.
- Q: What is the difference between seamless and HFW stainless steel pipes?
- The manufacturing process and the presence of a welded seam distinguish seamless stainless steel pipes from HFW (High Frequency Welded) stainless steel pipes. Seamless stainless steel pipes are created by piercing a solid billet or ingot and rolling it into a cylindrical shape. This method eliminates the need for welding, resulting in a pipe without any seams or joints. The absence of a welded seam enhances the overall strength and integrity of the pipe, making it ideal for high-pressure applications. On the contrary, HFW stainless steel pipes are produced using high-frequency electric resistance welding. This process involves passing a flat strip of stainless steel through a series of rollers and longitudinally welding it using a high-frequency current. The welded seam is then heat-treated to ensure the same corrosion resistance as the base material. HFW pipes are generally more cost-effective compared to seamless pipes, making them a popular choice for various applications. While both seamless and HFW stainless steel pipes offer excellent corrosion resistance and durability, seamless pipes are often preferred in critical applications where high strength and reliability are essential. The absence of a welded seam minimizes the risk of leakage and failure, making them suitable for industries such as oil and gas, petrochemical, and nuclear power. HFW stainless steel pipes, on the other hand, are more commonly used in less demanding applications like water supply, plumbing, and construction. They provide a cost-effective solution without compromising overall performance and corrosion resistance. In conclusion, the main difference between seamless and HFW stainless steel pipes lies in their manufacturing process and the presence of a welded seam. Seamless pipes are produced without welding, offering superior strength and reliability for critical applications. HFW pipes, on the other hand, are manufactured through high-frequency electric resistance welding and are more cost-effective, making them suitable for less demanding applications.
- Q: What is the external protection used for stainless steel pipes?
- To safeguard stainless steel pipes from corrosion and maintain their integrity, various methods of external protection are employed. One approach involves the application of a protective coating or treatment to shield the pipes and prevent corrosion. Despite stainless steel's inherent resistance to corrosion, it remains vulnerable to certain environmental conditions. A commonly utilized method of external protection entails applying a corrosion-resistant coating, such as epoxy, polyethylene, or zinc. These coatings create a barrier between the stainless steel pipe and its surroundings, preventing direct contact and potential corrosion. Additionally, they serve to safeguard the pipe against physical damage, such as scratches or abrasions, which could lead to corrosion. Another method employed for external protection involves cathodic protection. This technique encompasses either the usage of sacrificial anodes or the application of an electric current to the stainless steel pipe. By sacrificing the anodes or inducing an electrochemical reaction, corrosion is redirected away from the pipe. Furthermore, external protection may include the utilization of insulation materials to prevent condensation and moisture accumulation on the pipe's surface. Moisture can expedite corrosion, and hence proper insulation aids in upholding the stainless steel pipes' integrity. Overall, the aim of external protection for stainless steel pipes is to avert corrosion and ensure their longevity and reliability. By employing various protective coatings, cathodic protection, and insulation, stainless steel pipes can be shielded from environmental factors, thereby guaranteeing optimal performance.
- Q: Can stainless steel pipes be insulated with polypropylene?
- Indeed, polypropylene serves as an appropriate material for insulating stainless steel pipes. This is due to its remarkable thermal properties and minimal thermal conductivity. Polypropylene exhibits resistance against moisture, chemicals, and UV radiation, rendering it suitable for diverse applications. By implementing polypropylene insulation, the loss or gain of heat in stainless steel pipes can be averted, thereby enhancing energy efficiency and decreasing the likelihood of condensation or freezing. Consequently, it is imperative to guarantee the correct installation and compatibility of the polypropylene insulation with the particular stainless steel pipe in order to attain optimal performance and durability.
- Q: What is the difference between seamless and seamless annealed stainless steel pipes?
- The main difference between seamless and seamless annealed stainless steel pipes lies in their manufacturing process and the resulting properties of the pipes. Seamless stainless steel pipes are manufactured by piercing a hot billet or a solid bar to form a hollow cylindrical shape. This process eliminates the need for welding or any other joints, resulting in a uniform and continuous pipe with no seams. Seamless pipes are known for their excellent strength and ability to withstand high pressures, making them suitable for various applications in industries such as oil and gas, petrochemical, and construction. On the other hand, seamless annealed stainless steel pipes go through an additional heat treatment process called annealing. Annealing involves heating the pipe to a specific temperature, holding it at that temperature for a certain duration, and then cooling it slowly. This heat treatment helps to relieve internal stresses, reduce hardness, improve ductility, and enhance the overall mechanical properties of the stainless steel pipe. The annealing process also leads to the formation of a more homogenous microstructure, which further improves the corrosion resistance of the stainless steel. This makes seamless annealed stainless steel pipes particularly suitable for applications where excellent corrosion resistance is required, such as in the chemical processing, pharmaceutical, and food and beverage industries. In summary, while both seamless and seamless annealed stainless steel pipes are produced without any seams, the additional annealing process in the latter enhances its mechanical properties and corrosion resistance, making it more suitable for certain industries and applications.
- Q: What is the difference between martensitic and precipitation-hardening stainless steel pipes?
- Martensitic stainless steel pipes are characterized by their high strength, hardness, and resistance to corrosion. They derive their properties from a heat treatment process known as quenching and tempering, which forms a martensite microstructure. On the other hand, precipitation-hardening stainless steel pipes have a different alloying composition, with elements such as copper, aluminum, or titanium added to enable the formation of precipitates during a heat treatment process. These precipitates contribute to the increased strength and hardness of the steel. Therefore, the main difference between martensitic and precipitation-hardening stainless steel pipes lies in the mechanism by which their strength and hardness are achieved.
- Q: What are the temperature limitations of stainless steel pipes?
- The temperature limitations of stainless steel pipes depend on the specific grade of stainless steel used. Generally, stainless steel pipes can withstand high temperatures up to 1200°F (649°C) without experiencing significant deformation or damage. However, the maximum operating temperature can vary depending on the alloy composition and its mechanical properties. For instance, austenitic stainless steels, such as grades 304 and 316, are commonly used in various industrial applications and can typically handle temperatures up to 1500°F (816°C). These grades offer good corrosion resistance and excellent toughness, making them suitable for high-temperature environments. On the other hand, ferritic and martensitic stainless steels, like grades 409 and 410, have lower resistance to high temperatures compared to austenitic stainless steels. They can generally withstand temperatures up to 1200°F (649°C) before significant loss of strength occurs. It is important to note that prolonged exposure to high temperatures can cause stress corrosion cracking and reduce the overall lifespan of stainless steel pipes. Therefore, it is crucial to consider the specific application and choose an appropriate grade of stainless steel that can withstand the desired temperature range. Consulting with a materials engineer or referring to industry standards and guidelines is recommended to ensure safe and reliable operation of stainless steel pipes at elevated temperatures.
- Q: What is the typical wall thickness for stainless steel pipes?
- The typical wall thickness for stainless steel pipes can vary depending on the application and specific requirements. However, in general, stainless steel pipes are available in a wide range of wall thicknesses. For most standard applications, such as plumbing or industrial use, the typical wall thickness for stainless steel pipes can range from Schedule 5S (0.049 inches or 1.24 mm) to Schedule 80S (0.218 inches or 5.54 mm). It is important to note that for specialized applications or projects with specific requirements, the wall thickness can be customized accordingly. Overall, the selection of the appropriate wall thickness for stainless steel pipes should be based on factors such as the intended use, pressure requirements, and structural considerations.
- Q: What is the difference between seamless and extruded stainless steel pipes?
- Seamless and extruded stainless steel pipes are utilized in various industries and applications, but they differ in several ways. 1. Manufacturing Process: The manufacturing process distinguishes seamless and extruded stainless steel pipes. Seamless pipes are formed through hot rolling or hot extrusion, where a heated cylindrical billet is pushed or pulled through a die to create a pipe without any seams. In contrast, extruded pipes are made using cold extrusion, forcing a solid stainless steel billet through a die to achieve the desired shape and size. 2. Seamless Nature: Seamless pipes, as their name suggests, lack any seams or welds along their length. This attribute enhances their strength and structural integrity. In contrast, extruded pipes may display visible seams or welds, potentially compromising the overall structure. 3. Sizes and Dimensions: Seamless pipes offer a wider range of sizes and dimensions compared to extruded pipes. This is due to the flexibility provided by the hot rolling process, which allows for greater shaping and forming capabilities. Extruded pipes, however, are limited in their size range and are typically used for smaller diameter applications. 4. Surface Finish: Seamless pipes generally boast a smooth and polished surface finish, making them suitable for applications where aesthetics are important, such as architectural structures or decorative elements. Conversely, the manufacturing process of extruded pipes can result in a rougher surface finish, making them more appropriate for industrial or structural applications where appearance is less critical. 5. Cost: In general, seamless pipes are more expensive than extruded pipes due to the complexity of the manufacturing process. The hot rolling method necessitates specialized equipment and a higher level of expertise, increasing production costs. On the other hand, extruded pipes are more cost-effective as they are produced through a simpler cold extrusion process. In conclusion, the differences between seamless and extruded stainless steel pipes encompass their manufacturing process, seamless nature, size range, surface finish, and cost. The choice between the two will depend on the specific requirements of the application at hand.
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STAINLESS STEEL PIPE CHEAP and GOOD QUALITY from CHINA
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 1000 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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