duplex seamless pipe 32760

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Specifications

ASTM A789 S32760 Super Duplex stainless steel pipe
1. Good general corrosion resistance
2. Excellent strength and toughness

ASTM A789 S32760 Super Duplex stainless steel pipe

Standard : ASTM A789 A790

Material : S31803;S32205;S32750;S32760

Thickness : 0.8-30mm

OD: 10-710mm

ASTM	UNS	C	Si	Mn	P	S	Cr	Ni	Mo	N	Other
	S31803	0.03	1.00	2.00	0.03	0.02	21-23	4.5-6.5	2.5-3.5	0.08-0.20
2205	S32205	0.03	1.00	2.00	0.03	0.02	22-23	4.5-6.5	3.0-3.5	0.14-0.20
2507	S32750	0.03	0.8	1.2	0.035	0.02	24-26	6.0-8.0	3.0-5.0	0.24-0.32	Cu<0.5
Zeron 100	S32760	0.03	1.00	1.00	0.03	0.01	24-26	6.0-8.0	3.0-4.0	0.2-0.3

Grade		Tensile strength	Yield srength	Elongation	Hardness
ASTM	UNS	(Mpa)	(Mpa)	(%)	(HBW)
	S31803	620	450	25	290
2205	S32205	655	485	25	290
2507	S32750	800	550	15	300
Zeron 100	S32760	750	550	25	300

Q:How do you insulate stainless steel pipes?: Insulating stainless steel pipes is a crucial step to prevent heat loss, condensation, and energy wastage. There are several methods to effectively insulate stainless steel pipes: 1. Pipe insulation wraps: This is the most common and cost-effective method. Pipe insulation wraps are available in various materials such as fiberglass, rubber, or foam. These wraps are easy to install and provide excellent insulation against heat transfer. They also act as a barrier to prevent condensation. 2. Insulation jackets: These are pre-formed covers made of insulation material like mineral wool or fiberglass. Insulation jackets are designed to fit around the stainless steel pipes and are secured with adhesive or straps. They provide a high level of thermal insulation and are ideal for pipes located in areas with extreme temperatures. 3. Spray foam insulation: This method involves spraying a layer of polyurethane foam insulation directly onto the stainless steel pipes. This creates a seamless and durable insulation layer that adheres well to the pipes, providing excellent thermal insulation and preventing moisture buildup. 4. Insulation tape: Insulation tape, typically made of foam or rubber, is wrapped around the stainless steel pipes to provide thermal insulation. This method is best suited for smaller pipes or areas where space is limited. Regardless of the method chosen, it is important to consider the temperature range, moisture exposure, and specific requirements of the stainless steel pipes when selecting insulation materials. Additionally, ensuring proper installation and maintenance of the insulation is essential to optimize its effectiveness and durability.

Q:What are the dimensions and sizes of stainless steel pipes?: Different industrial and commercial applications are served by stainless steel pipes of varying dimensions and sizes. The sizing of these pipes is determined by their nominal diameter (DN) and the schedule or wall thickness. The nominal diameter represents the approximate internal diameter of the pipe and is commonly expressed in inches or millimeters. The most frequently available stainless steel pipe sizes range from 1/8 inch (3.175 mm) to 48 inches (1219 mm) in nominal diameter. However, larger sizes can be custom-made to meet specific requirements. The schedule or wall thickness of stainless steel pipes is indicated by a schedule number, which reflects the thickness of the pipe's walls. The most commonly used schedules for stainless steel pipes include Sch 5, Sch 10, Sch 40, and Sch 80. The higher the schedule number, the thicker the walls of the pipe. Apart from the dimensions and sizes, stainless steel pipes also come in various lengths, typically ranging from 20 feet (6.1 meters) to 40 feet (12.2 meters). Custom lengths can also be ordered based on specific project needs. It is important to note that these dimensions and sizes may differ based on the standards and specifications established by different countries and industries. Hence, it is crucial to consult the relevant standards or collaborate with a reliable supplier to ensure the precise dimensions and sizes of stainless steel pipes for a particular application.

Q:Can stainless steel pipes be used for pulp and paper industries?: Yes, stainless steel pipes can be used for pulp and paper industries. Stainless steel pipes are highly resistant to corrosion and abrasion, making them suitable for the harsh and corrosive environments typically found in pulp and paper mills. They can withstand the corrosive chemicals and high temperatures associated with the production process, ensuring the longevity and reliability of the piping system. Additionally, stainless steel pipes have excellent mechanical properties, including high tensile strength and resistance to stress corrosion cracking, which are important for the efficient transportation of fluids and gases within the pulp and paper industry. Overall, stainless steel pipes offer a durable, hygienic, and cost-effective solution for piping requirements in the pulp and paper industries.

Q:Can stainless steel pipes be insulated with polyetherimide?: Polyetherimide (PEI) is an exceptional thermoplastic that exhibits remarkable thermal stability and insulation capabilities, making it a suitable choice for insulating stainless steel pipes. With its excellent resistance to heat, chemicals, and electrical conductivity, PEI can effectively insulate stainless steel pipes in diverse industries such as oil and gas, chemical processing, and aerospace. Moreover, PEI's high glass transition temperature enables it to withstand elevated temperatures without melting or deforming, further enhancing its appropriateness for insulating stainless steel pipes.

Q:How do you calculate the weight of stainless steel pipes?: In order to determine the weight of stainless steel pipes, several factors should be taken into account. Firstly, one needs to establish the pipe's outer diameter (OD) and thickness (T). Once these measurements have been obtained, the weight per foot (or meter) of the stainless steel pipe can be calculated using the following formula: Weight per foot (or meter) = (OD - T) * T * 0.0246615 It should be noted that this formula assumes the stainless steel pipe is of a circular shape. By multiplying the weight per foot by the length of the pipe in feet (or meters), the total weight can be determined. It is important to acknowledge that the density of stainless steel may vary depending on the specific grade and composition. Therefore, the weight calculated using this formula will provide an approximate value. For precise weight calculations, it is advisable to consult a reference table or contact the manufacturer for more accurate information.

Q:Can stainless steel pipes be used for construction purposes?: Indeed, construction purposes can certainly make use of stainless steel pipes. This material, known for its exceptional durability and resistance to corrosion, proves itself suitable for a wide range of construction applications. It finds common employment in structural projects, providing dependable support for building frameworks, handrails, and support structures. Moreover, stainless steel pipes serve vital roles in plumbing systems, drainage systems, and HVAC systems. Notably, they often take precedence in construction endeavors that prioritize hygiene and cleanliness, such as hospitals, food processing plants, and laboratories. In summary, stainless steel pipes deliver exceptional strength, longevity, and resistance to rust and corrosion, rendering them an unwavering choice for construction endeavors.

Q:What are the different types of stainless steel pipe flanges?: There are several different types of stainless steel pipe flanges available, each designed for specific applications and requirements. Some common types include: 1. Weld Neck Flanges: These flanges have a long tapered hub and are welded to the pipe, providing excellent strength and durability. They are ideal for high-pressure and high-temperature applications. 2. Slip-On Flanges: These flanges slide over the pipe and are then welded in place. They are easy to install and provide a secure connection. Slip-on flanges are commonly used in low-pressure and non-critical applications. 3. Socket Weld Flanges: These flanges have a socket-like end that fits over the pipe and is then welded in place. They are used for smaller-sized pipes and are known for their resistance to leakage. 4. Threaded Flanges: These flanges have internal threads that allow them to be screwed onto the pipe. They are used in low-pressure applications and are easy to install and remove. 5. Lap Joint Flanges: These flanges consist of two components – a stub end and a loose backing flange. They are used in systems requiring frequent dismantling or where alignment is crucial. 6. Blind Flanges: These flanges are solid and have no bore, making them ideal for closing off the end of a pipe. They are commonly used in piping systems that require periodic inspection or cleaning. 7. Orifice Flanges: These flanges have concentric or eccentric holes to measure the flow rate of a fluid. They are often used in flow measurement applications. 8. Spectacle Blind Flanges: These flanges consist of a combination of a blind flange and a spacer. They are used to separate sections of a pipe system and can be easily removed for maintenance or repair. It is important to select the appropriate type of stainless steel pipe flange based on the specific requirements of the application, such as pressure, temperature, and fluid compatibility.

Q:What is the difference between 2507 and 316 stainless steel pipes?: The composition and properties of 2507 and 316 stainless steel pipes are what set them apart. 2507 stainless steel, known as a super duplex stainless steel, has a higher concentration of chromium, nickel, and molybdenum compared to 316 stainless steel. This composition leads to improved resistance against corrosion, especially in harsh conditions like seawater or acidic solutions. The increased amounts of chromium and molybdenum also provide excellent protection against pitting and crevice corrosion. On the flip side, 316 stainless steel is an austenitic stainless steel with lower levels of chromium, nickel, and molybdenum compared to 2507. While it still offers decent corrosion resistance, it is not as capable of withstanding extreme conditions as 2507 stainless steel. In terms of mechanical properties, 2507 stainless steel outperforms 316 stainless steel in terms of strength and toughness. This makes it suitable for applications requiring high strength and resistance to stress corrosion cracking. To sum it up, the main differences between 2507 and 316 stainless steel pipes lie in their composition, corrosion resistance, and mechanical properties. 2507 stainless steel is a super duplex stainless steel with exceptional corrosion resistance and higher strength, while 316 stainless steel is an austenitic stainless steel with decent corrosion resistance. The choice between the two will depend on the specific application and environment in which the pipes will be utilized.

Q:What is the lifespan of stainless steel pipes?: The lifespan of stainless steel pipes can vary depending on various factors such as the grade of stainless steel used, the environment in which they are installed, and the maintenance and care they receive. However, in general, stainless steel pipes have a long lifespan compared to other materials commonly used for piping systems. Stainless steel pipes are known for their durability and corrosion-resistant properties. They are designed to withstand harsh conditions, high temperatures, and various corrosive substances, making them suitable for a wide range of applications. This inherent resistance to corrosion allows stainless steel pipes to have a longer lifespan than pipes made from materials like carbon steel or plastic. In ideal conditions and proper maintenance, stainless steel pipes can last for several decades or even longer. In some cases, stainless steel pipes have been known to last for over 100 years. However, it is important to note that the actual lifespan can vary depending on the specific application and the level of care provided. Regular inspection, maintenance, and cleaning can help extend the lifespan of stainless steel pipes. This includes removing any deposits or buildup that may occur over time, as well as addressing any signs of corrosion or damage promptly. Additionally, choosing the appropriate grade of stainless steel for the intended application can also contribute to a longer lifespan. Overall, stainless steel pipes are known for their durability and longevity. With proper care and maintenance, they can provide reliable and efficient performance for many years, making them a popular choice in various industries and applications.

Q:What is the thermal conductivity of stainless steel pipes?: The thermal conductivity of stainless steel pipes varies depending on the specific grade of stainless steel being used. However, on average, stainless steel pipes have a thermal conductivity ranging from 15 to 24 W/m·K (watts per meter kelvin).

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