• P22 Seamless Ferritic Alloy-Steel Pipe for High-Temperature System 1
  • P22 Seamless Ferritic Alloy-Steel Pipe for High-Temperature System 2
  • P22 Seamless Ferritic Alloy-Steel Pipe for High-Temperature System 3
P22 Seamless Ferritic Alloy-Steel Pipe for High-Temperature

P22 Seamless Ferritic Alloy-Steel Pipe for High-Temperature

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1000 kg
Supply Capability:
10000 kg/month

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Product particular communication:

1) Size: OD > 6.35 mm & Thk > 0.89 mm ;


2) Tight tolerance, Smooth surface, Uniform mechanical property(Mechanical Properties equilibrium) ;

 

3) Heat treatment: BK, BKS, GBK, NBK,Stress Relief, Normalizing, Spheroidize Anneal, Annealing, Bright Annealing, Normalized, Quenched and Tempered, Solution Annealing, etc ;

 

4) Continuous stenciling as required ;

 

5) Rust prevention treatment, such as: immersion oil, lacquer, passivation, phosphating,etc;

 

6) Plastic plugs or caps on both ends as required ;

 

7) Packaging: Hexagonal bundles of max. 1,500kg with several steel strips, Wrapped in waterproof paper, PVC sleeve,and sackcloth with several steel strips or packed in heavy tri-wall boxes, wooden boxes, wooden slats as requires;Type: Round , Square, Rectangle, Hexagon. Streamline, etc;



Specifications

ASTM A335 Seamless Alloy-Steel Pipe 
Standard: BS 1139, BS 3059-2, JIS G3454-2007 
Grade: 10#-45#, 15NiCuMoNb5, 10Cr9Mo1VNb

Detailed introduction to ASTM A335 seamless alloy steel pipe:

ASTM A335 seamless alloy steel pipe


  



FAQ:

1) why you chose us ?

Professional Manufacturer and supplier of Steel pipe

More than 14 years’ professional producing experience

We can get the lowest ex-factory prices. The price are quite reasonable and it is lower than our commercial peers. also, we can guarantee the qualities of our products.

BV, ISO certificates and SGS test can be provided to assure the quality of our products.

2) Our minimum order quantity:

10 Metric Tons or one 20ft or 40ft Container.

3) How about the Delivery Time?

The steel pipe will be produced since we getting your deposit by T/T or Your original L/C. For normal size, some stocks in our factory now, we can supply once you need.

4)What kind of payment does your company support?

T/T, 100% L/C at sight, Cash, Western Union are all accepted.

5) Do you charge for the samples?

According to our company principle, we just charge for samples, you pay for the freight /courier charge.

6) Main market:

Mid East, South America, Africa, Southeast Asia, India etc



Q: How do you calculate the expansion of stainless steel pipes?
In order to calculate the expansion of stainless steel pipes, it is necessary to take into account the coefficient of thermal expansion (CTE) of the material. The CTE quantifies the extent to which a material expands or contracts when exposed to temperature changes. To begin, the initial length of the stainless steel pipe must be determined. This refers to the length of the pipe at the starting temperature. Subsequently, the final operating temperature of the pipe needs to be established. This denotes the temperature at which the expansion is desired to be calculated. The CTE value for the specific grade of stainless steel used in the pipe must be obtained. The CTE is typically expressed in units of per degree Celsius (or per degree Fahrenheit). Multiply the initial length of the pipe by the CTE value and then multiply it by the change in temperature. This computation yields the expansion or contraction of the pipe within the given temperature range. For instance, assume a stainless steel pipe with an initial length of 10 meters, a CTE of 17 x 10^-6 per degree Celsius, and a desired expansion calculation at a final temperature of 100 degrees Celsius. The change in temperature is determined by subtracting the initial temperature from the final temperature. Expansion = Initial Length * CTE * Change in Temperature Expansion = 10 meters * 17 x 10^-6 per degree Celsius * 100 degrees Celsius Expansion = 0.0017 meters or 1.7 millimeters Consequently, when subjected to a temperature increase of 100 degrees Celsius, the stainless steel pipe would expand by 1.7 millimeters. It is important to note that this calculation assumes a uniform expansion throughout the entire length of the pipe. In reality, thermal expansion may vary due to factors such as pipe diameter, wall thickness, and other structural considerations. Thus, it is advisable to consult industry standards or engineering references for more precise calculations in specific applications.
Q: What is the difference between 304N and 304LN stainless steel pipes?
The chemical composition and presence of nitrogen are what distinguish 304N and 304LN stainless steel pipes. Comparatively, 304N stainless steel pipes contain a higher nitrogen concentration than 304LN stainless steel pipes. This nitrogen infusion enhances the stainless steel's durability and ability to withstand corrosion, rendering it more appropriate for use in demanding or corrosive environments. The heightened nitrogen levels in 304N stainless steel pipes result in improved overall performance in terms of strength, hardness, and resistance to pitting and crevice corrosion. Conversely, 304LN stainless steel pipes possess a lower nitrogen content but retain excellent corrosion resistance properties. These pipes are specifically engineered for use in low-temperature applications that require toughness. The reduced nitrogen content in 304LN stainless steel pipes ensures good weldability and formability, making them suitable for various fabrication processes. In conclusion, the disparity between 304N and 304LN stainless steel pipes lies in their nitrogen content, which impacts their strength, corrosion resistance, and suitability for diverse applications.
Q: What is the difference between inside diameter and outside diameter in stainless steel pipes?
The inside diameter refers to the measurement of the inner space or bore of a stainless steel pipe, while the outside diameter refers to the measurement of the outer circumference or width of the pipe. Essentially, the inside diameter determines the flow capacity of the pipe, while the outside diameter determines the overall size and strength of the pipe.
Q: What is the difference between 316 and 316H stainless steel pipes?
The main difference between 316 and 316H stainless steel pipes lies in their carbon content. 316 stainless steel pipes have a maximum carbon content of 0.08%, which makes them suitable for applications where corrosion resistance is important, such as in marine environments. They are also known for their excellent welding and forming properties, making them a popular choice in various industries. On the other hand, 316H stainless steel pipes have a higher carbon content, typically around 0.04-0.10%. This increased carbon content provides improved high-temperature strength and creep resistance, making them suitable for applications where the pipes will be subjected to elevated temperatures, such as in high-pressure steam systems or in the petrochemical industry. In summary, while both 316 and 316H stainless steel pipes offer good corrosion resistance and overall performance, the 316H variant is specifically designed to withstand higher temperatures and offer better strength properties.
Q: Are stainless steel pipes fire-resistant?
Indeed, fire resistance is a characteristic possessed by stainless steel pipes. Renowned for its elevated melting point and exceptional fire resistance, stainless steel is a secure material choice for numerous purposes, including the construction of pipes. With its incapability to readily ignite or facilitate the expansion of flames, stainless steel ensures safety in various applications. Moreover, stainless steel pipes exhibit remarkable durability and strength even when exposed to high temperatures, assuring an additional layer of safety in environments susceptible to fires.
Q: What is the difference between 316 and 316L stainless steel pipes?
The carbon content is the main distinguishing factor between 316 and 316L stainless steel pipes. Both alloys contain equal amounts of chromium, nickel, and molybdenum, which contribute to their corrosion resistance. However, 316L stainless steel pipes have a lower carbon content than 316 stainless steel pipes. The reduced carbon content in 316L stainless steel pipes helps prevent carbide precipitation during welding or high-temperature applications. This phenomenon, known as sensitization, can result in intergranular corrosion, compromising the overall corrosion resistance of the material. By reducing the carbon content, 316L stainless steel pipes are less prone to sensitization, making them more suitable for welding applications. Moreover, the lower carbon content in 316L stainless steel pipes enhances their resistance to corrosion in environments with high chloride exposure, such as coastal areas or industrial settings. This characteristic makes 316L stainless steel pipes the preferred choice in various industries, including marine, chemical, and pharmaceutical, where corrosion resistance is essential. To summarize, while both 316 and 316L stainless steel pipes offer excellent corrosion resistance, the lower carbon content of 316L stainless steel pipes improves weldability and resistance to sensitization. Therefore, 316L stainless steel pipes are commonly selected for applications involving welding or exposure to corrosive environments.
Q: How do you determine the size of a stainless steel pipe?
The size of a stainless steel pipe is determined by measuring its outer diameter using a caliper or a tape measure.
Q: How do you protect stainless steel pipes from heat damage?
To protect stainless steel pipes from heat damage, there are several measures you can take. 1. Insulation: Wrap the pipes with high-temperature insulation material, such as fiberglass or mineral wool, to minimize heat transfer. This insulation acts as a barrier, preventing excessive heat from reaching the pipes. 2. Heat-resistant coatings: Apply a heat-resistant coating to the pipes. These coatings are specifically designed to withstand high temperatures and provide an additional layer of protection. 3. Ventilation: Ensure proper ventilation around the pipes to dissipate heat. Good ventilation helps in maintaining lower temperatures and reduces the risk of heat damage. 4. Heat shields: Install heat shields or guards around the pipes, especially in areas where there is a high risk of heat exposure. These shields can be made of materials like stainless steel or ceramic, which can withstand high temperatures and act as a physical barrier between the pipes and the heat source. 5. Proper installation: Ensure that the pipes are installed with the appropriate clearances from heat sources. This can prevent direct contact with extremely hot surfaces and reduce the risk of heat damage. 6. Regular maintenance: Regularly inspect the pipes for signs of heat damage or deterioration. Any issues should be addressed promptly to prevent further damage. By implementing these measures, you can effectively protect stainless steel pipes from heat damage and extend their lifespan.
Q: Can stainless steel pipes be used in high-pressure applications?
Yes, stainless steel pipes can be used in high-pressure applications. Stainless steel is known for its strength, durability, and ability to withstand extreme pressure conditions. It is often used in industries such as oil and gas, chemical processing, and power generation, where high-pressure environments are common. Stainless steel pipes offer excellent resistance to corrosion, making them suitable for long-term use in high-pressure applications.
Q: Are stainless steel pipes resistant to abrasion?
Yes, stainless steel pipes are highly resistant to abrasion. This is due to the unique properties of stainless steel, such as its high hardness and strength. Stainless steel pipes are made from an alloy that contains a minimum of 10.5% chromium, which forms a protective layer on the surface that prevents rusting and corrosion. This protective layer also helps to resist abrasion, making stainless steel pipes an excellent choice for applications where there is a high risk of wear and tear. Additionally, stainless steel pipes can withstand high temperatures and are highly durable, making them ideal for industries such as oil and gas, chemical, and construction.

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