Sanitary Stainless Steel Tube for food 3A

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Specifications

1. Cold Rolled 304 &316L Material
2. Highest degree of purity and cleanliness
3. For Dairy, Food, Beverage, and Other Sanitary

Product Name: 3A Sanitary Stainless Steel Tube for food

Materials

304L & 316L available with order.

Introduction

For Dairy, Food, Beverage, and Other Sanitary Applications.

Associated Tube’s sanitary tube is ideal for the dairy, food and beverage industries where the highest degree of purity and cleanliness is essential.

It is certified to the requirements of ASTM A270, 3A standards and most user specifications. Tubing is manufactured from the finest quality raw materials made exclusively to Associated Tube melt parameters.

Customers have come to rely on the quality of our sanitary tube products as well as our uncompromised commitment to total customer satisfaction.

Annealing

Hydrogen bright annealed in line to 1900°F (1040° C) minimum and rapidly quenched.

Surface Finishes

Surface finish is 20 µ-in Ra (0.5 µm) ID maximum, 30 µ-in Ra (0.8 µm) OD maximum surface roughness measured per ASME/ANSI B46.1 with the profilometer reading at 90 degrees to the lay. Other finishes available upon request.

Packaging

As a final step to ensure purity standards, each tube is packaged using 2 mil poly sleeving and both ends are sealed using air tight end caps. Tubes are packaged in protective tri-wall boxing. When specified, wood boxes and all export requirements can be provided.

Marking

Bright annealed tubing is line–stenciled with OD, wall, ASTM specifications, size, grade, heat number, production date and time. OD polished tube is marked on one end of each tube with a removable label stating ASTM specification, manufacturer, grade and heat number. Continuous line stencil available on request.

Q:Can stainless steel pipes be used for seawater applications?: Yes, stainless steel pipes can be used for seawater applications. Stainless steel is highly resistant to corrosion and can withstand the corrosive effects of seawater, making it an ideal choice for applications in marine environments.

Q:How do you measure the thickness of a stainless steel pipe?: One common method to measure the thickness of a stainless steel pipe is by using a caliper or a micrometer. These tools allow you to accurately measure the outer diameter and inner diameter of the pipe. By subtracting the inner diameter from the outer diameter, you can determine the wall thickness of the pipe.

Q:What is the difference between 304LN and 316LN stainless steel pipes?: The main difference between 304LN and 316LN stainless steel pipes lies in their composition and the addition of certain elements. 304LN stainless steel is an austenitic stainless steel that contains low carbon content and nitrogen. It is designed to provide improved strength and corrosion resistance compared to standard 304 stainless steel. The addition of nitrogen promotes the formation of a stable austenite phase, which enhances the material's mechanical properties. On the other hand, 316LN stainless steel is also an austenitic stainless steel but contains molybdenum and a higher nickel content compared to 304LN. The addition of molybdenum increases the material's resistance to pitting corrosion caused by chlorides and other aggressive environments. The higher nickel content further enhances the corrosion resistance and makes it suitable for more demanding applications, such as marine environments or chemical processing. In summary, while both 304LN and 316LN stainless steel pipes are austenitic and offer good corrosion resistance, the addition of molybdenum and higher nickel content in 316LN makes it more suitable for applications where enhanced corrosion resistance is required, especially in aggressive environments.

Q:What is the difference between 304J6 and 316J6 stainless steel pipes?: The main difference between 304J6 and 316J6 stainless steel pipes lies in their composition and properties. 304J6 stainless steel is a low carbon variation of the popular 304 stainless steel. It contains around 18% chromium and 8% nickel, which provides excellent corrosion resistance and durability. This grade is commonly used in various applications, including food processing, chemical processing, and architectural purposes. On the other hand, 316J6 stainless steel is an austenitic stainless steel grade known for its higher corrosion resistance compared to 304J6. It contains around 16-18% chromium, 10-14% nickel, and 2-3% molybdenum. The addition of molybdenum enhances its resistance to pitting and crevice corrosion in chloride environments, making it suitable for marine and coastal applications. In terms of mechanical properties, both grades offer good strength and toughness. However, 316J6 stainless steel typically has higher tensile strength and hardness due to its alloy composition. When it comes to price, 316J6 stainless steel pipes are generally more expensive than 304J6 due to the higher cost of molybdenum. Therefore, the choice between the two grades depends on the specific requirements of the application and the level of corrosion resistance needed.

Q:Can stainless steel pipes be used for paper and pulp industry applications?: Yes, stainless steel pipes can be used for paper and pulp industry applications. Stainless steel is a preferred material in the industry due to its high corrosion resistance, durability, and strength. The paper and pulp industry often deals with corrosive chemicals, high temperatures, and abrasive materials, making stainless steel pipes an ideal choice for various applications. These pipes can be used for transporting chemicals, steam, and water, as well as for conveying pulp and paper products. Stainless steel pipes are also hygienic, easy to clean, and do not contaminate the products being conveyed. Overall, stainless steel pipes offer excellent performance and longevity in the demanding conditions of the paper and pulp industry.

Q:Can stainless steel pipes be surface treated?: Yes, stainless steel pipes can be surface treated. Surface treatment is often done to improve the aesthetics, corrosion resistance, and durability of stainless steel pipes. Common surface treatment methods for stainless steel pipes include passivation, electropolishing, pickling, and applying various coatings. Passivation involves the removal of impurities from the surface of the stainless steel, creating a protective oxide layer that enhances corrosion resistance. Electropolishing is an electrochemical process that smooths and polishes the surface of stainless steel pipes, improving their appearance and reducing the likelihood of bacterial growth. Pickling involves the removal of scale and oxide layers from the surface by using acid solutions. Coatings such as powder coating, paint, or plating can also be applied to stainless steel pipes to provide additional protection against corrosion, enhance appearance, or meet specific requirements. Overall, surface treatment options for stainless steel pipes are diverse and can be tailored to meet the desired functional and aesthetic needs.

Q:Why can stainless steel pipes be welded by argon arc welding?: Argon arc welding arc welding, convenient operation and observation; electrode loss is small, easy to maintain the arc length, welding flux free, coating layer, so it is easy to realize mechanization and automation; argon arc welding welding can almost all metals, especially some refractory metal, oxidizable metals, such as magnesium, titanium, molybdenum zirconium and aluminum and its alloys; by the welding location restrictions, can be used for all position welding.

Q:Can stainless steel pipes be used for chemical processing applications?: Yes, stainless steel pipes can be used for chemical processing applications. Stainless steel is known for its excellent corrosion resistance, making it suitable for handling various chemicals and corrosive substances. It is resistant to both organic and inorganic chemicals, including acids, alkalis, and solvents. Additionally, stainless steel pipes have high strength and durability, allowing them to withstand high temperatures and pressures commonly encountered in chemical processing operations. The smooth inner surface of stainless steel pipes also prevents the accumulation of deposits and ensures the efficient flow of chemicals. Overall, stainless steel pipes are a reliable choice for chemical processing applications due to their corrosion resistance, strength, durability, and ease of maintenance.

Q:How do stainless steel pipes compare to cast iron pipes?: Stainless steel pipes and cast iron pipes are two popular choices for plumbing systems, but they have distinct differences in terms of durability, cost, and corrosion resistance. Firstly, stainless steel pipes are known for their exceptional durability. They have a higher strength-to-weight ratio and are less prone to cracking or breaking compared to cast iron pipes. This makes stainless steel pipes a suitable option for high-pressure applications or areas with heavy traffic. In contrast, cast iron pipes are traditionally known for their strength and longevity. They have a high resistance to impact and vibrations, making them ideal for areas where durability is crucial, such as underground or in commercial buildings. However, cast iron pipes are more susceptible to cracking or corrosion over time, especially in acidic or alkaline environments. Cost-wise, stainless steel pipes tend to be more expensive upfront compared to cast iron pipes. However, stainless steel pipes have a longer lifespan and require minimal maintenance, ultimately providing cost savings in the long run. On the other hand, cast iron pipes may have a lower initial cost but may require more frequent maintenance and repairs, which can increase the overall costs over time. In terms of corrosion resistance, stainless steel pipes outshine cast iron pipes. Stainless steel contains a significant amount of chromium, which forms a protective oxide layer that prevents corrosion. This makes stainless steel pipes highly resistant to rust, chemicals, and extreme temperatures. On the other hand, cast iron pipes are more prone to rust and corrosion, especially if not properly coated or maintained. In summary, stainless steel pipes offer superior durability, corrosion resistance, and long-term cost savings compared to cast iron pipes. While cast iron pipes have their own set of advantages, such as strength and impact resistance, stainless steel pipes are a more reliable and versatile option for various plumbing applications.

Q:How do you calculate the pipe length required for a specific application?: To determine the required length of a pipe for a specific application, several considerations must be taken into account. 1. Flow Rate: The desired flow rate or volume of fluid to be transported through the pipe per unit of time needs to be established. This can be measured in various units such as gallons per minute (GPM) or liters per second (L/s). 2. Pipe Material: The material of the pipe to be used for the application should be identified. Different materials have varying friction coefficients, which impact the overall length required. 3. Friction Loss: The friction loss in the pipe must be calculated based on the flow rate and material properties. This involves determining the friction factor specific to the pipe material and utilizing the appropriate equation, such as the Darcy-Weisbach equation or Hazen-Williams equation, to compute the friction loss. 4. Pressure Drop: The desired pressure drop across the pipe needs to be taken into consideration. Application requirements or system design typically specify this. The pressure drop can be determined using the Bernoulli's equation or other relevant equations. 5. Pipe Diameter: The appropriate pipe diameter should be determined based on the desired flow rate and allowable pressure drop. Pipe sizing charts or equations tailored to the pipe material and flow characteristics can be utilized for this purpose. 6. Calculation of Pipe Length: Once the pipe diameter is known, the required length can be calculated based on the desired flow rate, pressure drop, and friction loss. Pipe sizing equations or software tools specific to the pipe material can be employed for this calculation. 7. Additional Factors: Any additional factors that may impact the pipe length calculation, such as elevation changes, fittings, valves, or other system components, need to be considered. These factors may introduce additional friction losses or pressure drops that must be accounted for. It is important to note that pipe length calculations are typically performed by engineers or professionals with expertise in fluid mechanics and pipe system design. Consulting relevant codes, standards, and guidelines specific to the application is also recommended to ensure compliance with safety and performance requirements.

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