316l Stainless Steel Seamless Pipe in Wuxi ,China
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 25000 m.t./month
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Specification
316 stainless steel pipe
Product Description
Name | Stainless Steel Seamless & Welded Tube &Pipe | |||||
Items | Square tubes, round tubes, oval pipes, special shaped pipes, empaistic pipes, fittings | |||||
Standard | ASTM A554, A249, A269 and A270 | |||||
Material Grade | 201: Ni 0.8%~1% | |||||
202: Ni 3.5%~4.5% | ||||||
304: Ni 8%, Cr 18% | ||||||
316: Ni 10%, Cr 18% | ||||||
316L: Ni10%~14% | ||||||
430: Cr16%~18% | ||||||
Outer Diameter | 9.53mm--159mm | |||||
Thickness | 0.3mm - 3.0mm | |||||
Length | 6m or as customers' request | |||||
Tolerance | a) Outer Diameter: +/- 0.2mm | |||||
b) Thickness: +/- 0.02mm | ||||||
c) Length: +/- 5mm | ||||||
Surface | 180G, 240G, 320G Satin / Hairline 400G, 600G Mirror finish | |||||
Application | handrail,railing, staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,etc | |||||
Test | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT | |||||
Chemical Composition of Material | Material
Composition | 201 | 202 | 304 | 316L | 430 |
C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.035 | ≤0.12 | |
Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | |
Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | ≤1.00 | |
P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | ≤0.040 | |
S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | ≤0.030 | |
Cr | 13-15 | 14-17 | 18-20 | 16-18 | 16-18 | |
Ni | 0.7-1.1 | 3.5-4.5 | 8-10.5 | 10-14 | ||
Mo | 2.0-3.0 | |||||
Mechanical Property | Material Item | 201 | 202 | 304 | 316 | |
Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 | ||
Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 | ||
Extension | ≥30% | ≥30% | ≥35% | ≥35% | ||
Hardness (HV) | <105 | <100 | <90 | <90 | ||
Definition of stainless steel(Adopted form Wikipedia)
In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable",
is defined as a steelalloy with a minimum of 10.5% to 11% chromium content by mass.
Stainless steel does not readily corrode, rust or stain with water as ordinary steel does,
but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity,
or poor circulation environments. It is also called corrosion-resistant steel or CRES
when the alloy type and grade are not detailed, particularly in the aviation industry.
There are different grades and surface finishes of stainless steel to suit the environment
the alloy must endure. Stainless steel is used where both the properties of steel
and resistance to corrosion are required.
Surface Finish :
Surface finish | Characteristics and application |
No.2B | The surface brightness and flatness of no2B is better than no2D. then through a special surface treatment to improve its mechanical properties, No2B could nearly satisfy comprehensive uses. |
No.3 | Polished with abrasive belt of git#100-#200, have better brightness with discontinuous coarse stria, used as inner and external ornaments for building, electrical appliances and kitchen utensils etc. |
No.4 | Polished with abrasive belt of grit #150-#180,have better brightness with discontinuous coarse stria, but thinner than No3, are used as bathtub buildings inner and external ornaments electrical appliances kitchen utensils and food processing equipment etc. |
HL | Polished with abrasive belt of grit #150-#320 on the NO.4 finish and has continuous streaks, mainly used as buildings ornaments elevators, door of building, frontal plate etc. |
BA | Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror, kitchen apparatus, ornament etc. |
8K | The product have excellent brightness and prefer reflexivity can to be the mirror. |
- Q: Can stainless steel pipes be welded?
- Yes, stainless steel pipes can be welded. Stainless steel is a popular material used in various industries due to its high corrosion resistance and strength. Welding is one of the common methods used to join stainless steel pipes together. However, it is important to use the appropriate welding techniques and equipment to ensure a successful weld. Stainless steel has different grades, each with its own specific welding requirements. The welding process for stainless steel pipes typically involves using a filler material that matches the grade of stainless steel being welded. It is also crucial to properly clean and prepare the surfaces to be welded to ensure a strong and durable joint.
- Q: Can stainless steel pipes be used for vacuum systems?
- Yes, stainless steel pipes can be used for vacuum systems. Stainless steel is a popular choice for vacuum applications due to its high strength, corrosion resistance, and low outgassing properties. It can withstand high vacuum levels and maintain its structural integrity under pressure. Stainless steel pipes are commonly used in various industries such as aerospace, semiconductor manufacturing, and scientific research for creating vacuum systems. Additionally, stainless steel pipes can be easily cleaned and maintained, making them a reliable and long-lasting option for vacuum applications.
- 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: Can stainless steel pipes be used for hydrogen fuel cell systems?
- Stainless steel pipes are indeed applicable for hydrogen fuel cell systems. Renowned for its exceptional resistance to corrosion, stainless steel proves itself suitable for the manipulation of hydrogen gas. The transportation and storage of hydrogen gas are integral to hydrogen fuel cell systems, and stainless steel pipes serve as a dependable and long-lasting solution for this purpose. Moreover, stainless steel pipes exhibit the capacity to endure high pressure, thereby rendering them an ideal choice for the safe conveyance of hydrogen gas. In conclusion, owing to their corrosion resistance, robustness, and ability to operate in high-pressure surroundings, stainless steel pipes are widely utilized in hydrogen fuel cell systems.
- Q: How do you prevent vibration in stainless steel pipes?
- To prevent vibration in stainless steel pipes, various measures can be taken: 1. Employ suitable pipe supports: It is imperative to carefully select and install appropriate pipe supports. These supports should be designed to offer ample stability and rigidity to the pipe system, minimizing any potential movement or vibration. 2. Mitigate vibrations with isolators: Strategic placement of vibration isolators along the pipe system can help absorb and dampen vibrations. This reduces the transmission of vibrations through the stainless steel pipes. 3. Ensure proper pipe alignment: During installation, ensure that the pipes are aligned correctly. Misalignment can lead to stress concentrations and heightened vibration. Proper alignment helps distribute forces evenly and reduces vibration. 4. Decrease fluid velocity: High fluid velocities can induce turbulence and vibrations in the pipe system. By reducing the fluid velocity, either through adjusting the flow rate or utilizing flow control devices like throttling valves, vibrations can be minimized. 5. Implement soundproofing measures: In certain cases, vibrations may be caused by external factors, such as nearby machinery or equipment. To reduce noise and vibrations originating from these sources, consider implementing soundproofing measures like using noise-absorbing materials or installing vibration-blocking barriers. 6. Regularly maintain and inspect the pipe system: Conduct routine inspections to detect any signs of vibration or wear in the pipe system. Address any issues promptly to prevent further vibration problems. Additionally, ensure proper maintenance of the pipe system, including regular cleaning and lubrication of any moving parts. By implementing these measures, vibration in stainless steel pipes can be effectively prevented, ensuring the overall stability and integrity of the pipe system.
- Q: Are stainless steel pipes suitable for brewery applications?
- Yes, stainless steel pipes are highly suitable for brewery applications. Stainless steel is corrosion-resistant, ensuring that the pipes can withstand the harsh chemicals and acids used in the brewing process. It is also easy to clean and maintain, making it ideal for maintaining the hygiene standards required in breweries. Additionally, stainless steel pipes do not impart any taste or odor to the beer, ensuring the quality and purity of the final product.
- Q: Are stainless steel pipes suitable for drinking water applications?
- Yes, stainless steel pipes are suitable for drinking water applications. Stainless steel is highly resistant to corrosion, which ensures the water remains free from contaminants. It also has a smooth surface that prevents the accumulation of bacteria or impurities, making it a safe and hygienic choice for transporting drinking water.
- Q: Can stainless steel pipes be used for compressed air systems?
- Yes, stainless steel pipes can be used for compressed air systems. Stainless steel pipes have a high resistance to corrosion, which makes them suitable for applications where compressed air is used. They can withstand high pressure levels and provide reliable and leak-free operation. Additionally, stainless steel pipes are durable and long-lasting, ensuring that the compressed air system remains efficient and functional over time. However, it is important to consider the specific requirements of the compressed air system and consult with professionals to ensure that the stainless steel pipes are appropriately sized and installed to meet the system's needs.
- Q: What is the difference between 304 and 304H stainless steel pipes?
- The main difference between 304 and 304H stainless steel pipes lies in their carbon content. While both materials are made up of the same elements, including iron, chromium, and nickel, 304H stainless steel contains a higher carbon content compared to 304 stainless steel. The increased carbon content in 304H provides improved high-temperature strength and creep resistance, making it more suitable for applications that involve elevated temperatures. Because of its higher carbon content, 304H stainless steel pipes have better resistance to sensitization during welding, which is the formation of chromium carbides at the grain boundaries. This can lead to intergranular corrosion and reduced mechanical properties. By incorporating a higher carbon content, 304H stainless steel pipes can resist this sensitization phenomenon and maintain their structural integrity even at high temperatures. In terms of other properties, both 304 and 304H stainless steel pipes offer excellent corrosion resistance, good weldability, and high strength. They are widely used in various industries such as oil and gas, chemical, food processing, and pharmaceuticals. However, it is important to note that 304H stainless steel pipes are typically recommended for applications requiring high-temperature strength, while 304 stainless steel pipes are more commonly used for general-purpose applications. In summary, the difference between 304 and 304H stainless steel pipes lies in their carbon content. 304H stainless steel pipes have a higher carbon content, providing improved high-temperature strength and resistance to sensitization during welding. It is important to consider these differences when selecting the appropriate stainless steel pipe for a specific application.
- Q: How about stainless steel 2520 and 316?
- Their nickel content is different. 2520 contains about 20 nickel, 316 contains about 13 nickel, and contains 2 molybdenum.
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316l Stainless Steel Seamless Pipe in Wuxi ,China
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 25000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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